Jiro Hirokawa

Takefumi Hiraguri, Kentaro Nishimori, Jiro Hirokawa, 2018, 2018 IEEE International Workshop on Electromagnetics:Applications and Student Innovation Competition (iWEM).

Design of a Partially-Corporate Feed Double-Layer Slotted Waveguide Array Antenna in 39 GHz Band and Fabrication by Diffusion Bonding of Laminated Thin Metal Plates

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2010, IEICE Trans. Commun..

Double-layer Corporate-feed Hollow-waveguide Slot Array Antenna and Its Data Transmission Test Results in millimeter wave band (電子デバイス)

Tadao Nagatsuma, Makoto Ando, Jiro Hirokawa, 2013 .

Performance analysis and hardware verification of signal detection scheme using cyclic prefix in OFDM

Fumio Watanabe, Jiro Hirokawa, Kanshiro Kashiki, 2017, 2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC).

3.5-Gbit/s QPSK Signal Radio-Over-Fiber Transmission With 60-GHz Integrated Photonic Array-Antenna Beam Forming

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2016, Journal of Lightwave Technology.

A 60GHz gigabit access transponder equipment for short range and short-time file transfer

Miao Zhang, Toru Taniguchi, Makoto Ando, 2013, 2013 International Symposium on Electromagnetic Theory.

A Post-Wall Waveguide Slot Array with a Three-Way Power Divider on a Single-Layer Dielectric Substrate

Makoto Ando, Jiro Hirokawa, Shin-ichi Yamamoto, 2005, IEICE Trans. Commun..

Intersymbol interference analysis of a 60 GHz-band compact range wireless access system

Kiyomichi Araki, Miao Zhang, Makoto Ando, 2015, 2015 9th European Conference on Antennas and Propagation (EuCAP).

Manufacture and Performance of a 60GHz-Band High-Efficiency Antenna with a Thick Resin Layer and the Feed through a Hole in a Silicon Chip

Hiroshi Nakano, Makoto Ando, Jiro Hirokawa, 2013, IEICE Trans. Commun..

Bandwidth Enhancement of Aperture Feed by an Air Rectangular Cavity Backing in a LTCC Post-Wall Waveguide

Makoto Ando, Jiro Hirokawa, JungAun Lee, 2009, IEICE Trans. Electron..

A TM010 Cavity Power-Combiner with Microstrip Line Inputs

Miao Zhang, Jiro Hirokawa, Hirobumi Saito, 2017, IEICE Trans. Electron..

Diversity property of millimeter wave wireless networks against localized rain

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2014, 2014 IEEE Fifth International Conference on Communications and Electronics (ICCE).

Phase Control of Circular Polarization from a Slot with a Parasitic Dipole

Jiro Hirokawa, M. Ando, K. S. Min, 1998 .

Millimeter-wave antenna with high-isolation using slab waveguide for WPAN applications

Makoto Ando, Ryosuke Suga, Jiro Hirokawa, 2011, 2011 41st European Microwave Conference.

High-gain and high-efficiency single-layer slotted waveguide arrays in 60 GHz band

Makoto Ando, Jiro Hirokawa, 1997 .

A Four-Way Divider for Partially-Corporate Feed in an Alternating-Phase Fed Single-Layer Slotted Waveguide Array

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2008, IEEE Transactions on Antennas and Propagation.

Development of Compact SAR Systems for Small Satellite

Jiro Hirokawa, Hirobumi Saito, Hiromi Watanabe, 2019, IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium.

Design and fabrication of a double-layer slotted waveguide array with a partially-corporate feed for 38GHz fixed wireless access systems

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2010, 2010 IEEE Antennas and Propagation Society International Symposium.

Development and Performance Evaluation of Small SAR System for 100-kg Class Satellite

Jiro Hirokawa, Hirobumi Saito, Takashi Tomura, 2020, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

Millimeter-wave antenna technologies for 5G mobile communication systems

Jiro Hirokawa, J. Hirokawa, 2016, 2016 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM).

Design of a 39 GHz band alternating-phase fed double-layer waveguide slot antenna with the underneath partially-corporate feeding circuit

Miao Zhang, Toru Taniguchi, Makoto Ando, 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

Examples of the estimation of the antenna gain in the millimeter wavebands

Michitaka Ameya, Satoru Kurokawa, Makoto Ando, 2015, 2015 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM).

Alternating phase-fed waveguide slot arrays with a single-layer multiple-way power divider

Makoto Ando, Kunio Sakakibara, Jiro Hirokawa, 1997 .

Design of a metal cap with two slots covering the end of a module substrate for 60-GHz WPAN

Makoto Ando, Jiro Hirokawa, Kohei Ito, 2014, 2014 IEEE International Workshop on Electromagnetics (iWEM).

A Lightweight Radial Line Slot Antenna with Honeycomb Structure for Space Use

Makoto Ando, Jiro Hirokawa, Hideki Ueda, 2008, IEICE Trans. Commun..

Design and Measurement of the Plate Laminated Waveguide Slot Array Antenna and Its Feasibility for Wireless Link System in the 120 GHz Band

Dongjin Kim, Tadao Nagatsuma, Makoto Ando, 2013, IEICE Trans. Commun..

Two-Way Power Divider for Partially Parallel Feed in Single-Layer Slotted Waveguide Arrays

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1998 .

Metal cap with two slots covering an edge of a mobile device substrate for 60GHz band

Makoto Ando, Jiro Hirokawa, Kohei Ito, 2014, 2014 International Symposium on Antennas and Propagation Conference Proceedings.

A Center-Feed Linear Array of Reflection-Canceling Slot Pairs on Post-Wall Waveguide

Jae-Ho Lee, Makoto Ando, Jiro Hirokawa, 2011, IEICE Trans. Commun..

Wideband Design of a Short-Slot 2-Plane Coupler by the Mode Matching/FEM Hybrid Analysis Considering the Structural Symmetry

Jiro Hirokawa, Takashi Tomura, Masahiro Wakasa, 2019, IEICE Trans. Commun..

A Half-Sized Post-Wall Short-Slot Directional Coupler with Hollow Rectangular Holes in a Dielectric Substrate

Makoto Ando, Jiro Hirokawa, Shin-ichi Yamamoto, 2005, IEICE Trans. Electron..

Practical Slot Array Design by Method of Moments Using One Basis Function and Constant Correction Length

Makoto Ando, Jiro Hirokawa, Jae-Ho Lee, 2011, IEICE Trans. Commun..

Accuracy investigation of the de-embedding technique using open and short patterns for on-wafer RF characterization

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2010, 2010 Asia-Pacific Microwave Conference.

Cost-effective 60-GHz antenna-package with end-fire radiation from open-ended post-wall waveguide for wireless file-transfer system

Makoto Ando, Jiro Hirokawa, Yasutake Hirachi, 2010, MTT 2010.

An Equivalent Double Layer Model for a Fast Design and Analysis of High Gain-Multilayer Radial Line Slot Antennas

Tung Nguyen, Makoto Ando, Jiro Hirokawa, 2013, IEICE Trans. Commun..

A High-Efficiency Circularly-Polarized Aperture Array Antenna with a Corporate-Feed Circuit in the 60 GHz Band

Makoto Ando, Jiro Hirokawa, Goro Yoshida, 2011, IEICE Trans. Electron..

A Coaxial Line to Post-Wall Waveguide Transition for a Cost-Effective Transformer between a RF-Device and a Planar Slot-Array Antenna in 60-GHz Band

Hiroshi Nakano, Makoto Ando, Jiro Hirokawa, 2006, IEICE Trans. Commun..

Demonstration of mmWave systems and networks for the HetNet in 5G Mobile Communication

Miao Zhang, Kei Sakaguchi, Toru Taniguchi, 2016, 2016 URSI International Symposium on Electromagnetic Theory (EMTS).

Phased Array Antenna Beam Steering Scheme for Future Wireless Access Systems Using Radio-over-Fiber Technique

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2014, IEICE Trans. Commun..

A Partially-Corporate Feed Double-Layer Waveguide Slot Array with the Sub-Arrays also Fed in Alternating-Phases

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, IEICE Trans. Commun..

60GHz-Band Photonic-Integrated Array-Antenna and Module for Radio-over-Fiber-Based Beam Forming

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2017, IEICE Trans. Commun..

B-1-44 A Study of Rain-Rate Time Series Generation for Millimeter-Wave Wireless Link Simulator

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2011 .

The Ridged Cross-Junction Multiple-Way Power Divider for Small Blockage and Symmetrical Slot Arrangement in the Center Feed Single-Layer Slotted Waveguide Array

Makoto Ando, Jiro Hirokawa, Goro Yoshida, 2008, IEICE Trans. Commun..

12- and 21-GHz Dual-Band Dual-Circularly Polarized Offset Parabolic Reflector Antenna Fed by Microstrip Antenna Arrays for Satellite Broadcasting Reception

Jiro Hirokawa, Hisashi Sujikai, Masaaki Kojima, 2019, IEICE Trans. Commun..

Millimeter-wave Huygens’ Metasurfaces based on All-dielectric Resonators for Antenna Beam-forming

Jiro Hirokawa, Takashi Tomura, Daniel J. King, 2019, 2019 13th European Conference on Antennas and Propagation (EuCAP).

Rain Sensing Using Dual-Frequency Measurements from Small-Scale Millimeter-Wave Network

Toru Taniguchi, Makoto Ando, Jiro Hirokawa, 2015, IEICE Trans. Commun..

Admittance design with perfect input matching in two-dimensional waveguide slot arrays by introducing the equivalent circuit model

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2010, 2010 IEEE Antennas and Propagation Society International Symposium.

A source reconstruction technique for planar arrays of wide slots

Makoto Ando, Jiro Hirokawa, Manuel Sierra-Castaner, 2015, 2015 9th European Conference on Antennas and Propagation (EuCAP).

Full model análisis of a radial line slot antena and efficiency assesment as functions of slot pair design

Makoto Ando, Jiro Hirokawa, Manuel Sierra Castañer, 2004 .

De-Embedding Method Using an Electromagnetic Simulator for Characterization of Transistors in the Millimeter-Wave Band

Makoto Ando, Jiro Hirokawa, Yasutake Hirachi, 2010, IEEE Transactions on Microwave Theory and Techniques.

Design of mm-Wave RLSAs with Lossy Waveguides by Slot Coupling Control Techniques

Makoto Ando, Jiro Hirokawa, Manuel Sierra-Castañer, 2015, IEICE Trans. Commun..

Analysis and Design of a Reflection-Cancelling Transverse Slot-Pair Array with Grating-Lobe Suppressing Baffles

Makoto Ando, Jiro Hirokawa, Takehito Suzuki, 2009, IEICE Trans. Commun..

Design of the Traveling-Wave Series-Fed Microstrip Antenna Array with Power Control Slits of Unequal Inter-Element Spacing

Jiro Hirokawa, Jun Goto, Toru Fukasawa, 2020 .

Analysis of inner fields and aperture illumination of an oversize rectangular slotted waveguide

Makoto Ando, Jiro Hirokawa, H. Kai, 2003 .

Optimal power coupling coefficient distribution determination for dual feed leaky waveguide array using multi objective genetic algorithm

Jiro Hirokawa, Hirobumi Saito, Vinay Ravindra, 2014, The 8th European Conference on Antennas and Propagation (EuCAP 2014).

A Study of Aspect Ratio of the Aperture and the Effect on Antenna Efficiency in Oversized Rectangular Slotted Waveguide Arrays

Jiro Hirokawa, H. Kai, 2004 .

Corrugated soft sector horn with different beam properties in the two principal planes

Jiro Hirokawa, Per-Simon Kildal, D. J. Salomonsson, 1997 .

Analysis of a Waveguide with a Round-Ended Wide Straight Slot by the Method of Moments Using Numerical-Eigenmode Basis Functions

Makoto Ando, Jiro Hirokawa, Miao Zhang, 2003 .

Design of waveguide short-slot 2-plane couplers

Makoto Ando, Jiro Hirokawa, Dong-Hun Kim, 2015, 2015 International Symposium on Antennas and Propagation (ISAP).

Recent Technologies in Japan on Array Antennas for Wireless Systems

Ryo Yamaguchi, Qiang Chen, Jiro Hirokawa, 2017, IEICE Trans. Commun..

Small antenna measurement system with optical fiber link technologies in the millimeter-wave band

Michitaka Ameya, Satoru Kurokawa, Makoto Ando, 2016, 2016 IEEE International Conference on Computational Electromagnetics (ICCEM).

A 20-GHz-Band $64\times64$ Hollow Waveguide Two-Dimensional Butler Matrix

Kentaro Nishimori, Jiro Hirokawa, Takashi Tomura, 2019, IEEE Access.

Continuous beam steering antenna with large 2D coverage for 5G applications

Makoto Ando, Ronan Sauleau, Jiro Hirokawa, 2017, 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

Analysis and design of a circumferential wide slot cut on a thin cylinder for mobile base station antennas

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1993, Proceedings of IEEE Antennas and Propagation Society International Symposium.

Design of Post-Wall Feed Waveguide for a Parallel Plate Slot Array by an Analysis Model with Corrected Solid-Walls

Makoto Ando, Jiro Hirokawa, Koh Hashimoto, 2010, IEICE Trans. Commun..

Design of Narrow Wall Windows in a Waveguide to Feed Partially-Dielectric-Filled Oversized-Rectangular Waveguide Based on 2-Dimensional Analyses of Two Orthogonal Directions

Makoto Ando, Jiro Hirokawa, Miroslav Samardzija, 2010, IEICE Trans. Commun..

Gain measurement of a horn antenna by shortened far-field technique with averaging

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2014, 2014 IEEE Conference on Antenna Measurements & Applications (CAMA).

Cost-effective 60-GHz surface-mount antenna-package for wireless file-transfer system

Makoto Ando, Ryosuke Suga, Jiro Hirokawa, 2010, 2010 Asia-Pacific Microwave Conference.

A Four-Corner-Fed Slotted Waveguide Sparse Array for Near-Field Focusing

Qing Huo Liu, Jiro Hirokawa, Miao Zhang, 2020, IEEE Access.

60-GHz compact antenna module integrated with photodiode for various two-dimensional arrays and RoF-based beam forming

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2016, 2016 IEEE International Topical Meeting on Microwave Photonics (MWP).

Simple Analysis of a Slot and a Reflection-Canceling Post in a Rectangular Waveguide Using only the Axial Uniform Currents on the Post Surface

Jiro Hirokawa, S. H. Park, 2003 .

A 60-GHz Band Compact-Range Gigabit Wireless Access System Using Large Array Antennas

Miao Zhang, Toru Taniguchi, Makoto Ando, 2015, IEEE Transactions on Antennas and Propagation.

Experimental Evaluation of Intersymbol Interference in Non-Far Region Transmission using a Large Array Antenna in the Millimeter-Wave Band

Kiyomichi Araki, Jiro Hirokawa, Makoto Ando, 2020, IEICE Trans. Commun..

Two Types of Exciting Modes in a Rectangular-to-Radial Waveguide Transformer as a Feeder of Radial Line Slot Antennas

Makoto Ando, Jiro Hirokawa, Kaoru Sudo, 2003, 2003 33rd European Microwave Conference, 2003.

60 GHz Band Small Aperture Conical Beam Radial Line Slot Antennas

Makoto Ando, Jiro Hirokawa, A. Akiyama, 1999 .

Synthetic aperture radar compatible with 100kg class piggy-back satellite

Makoto Ando, Jiro Hirokawa, Hirobumi Saito, 2013, Conference Proceedings of 2013 Asia-Pacific Conference on Synthetic Aperture Radar (APSAR).

Optimal cross-range pattern synthesis using multi-objective genetic algorithm for a passive antenna in small satellite SAR

Miao Zhang, Jiro Hirokawa, Hirobumi Saito, 2015, 2015 International Symposium on Antennas and Propagation (ISAP).

Design of a parallel plate slot array antenna fed by a rectangular coaxial line

Makoto Ando, Jiro Hirokawa, Makoto Sano, 2014, 2014 IEEE Fifth International Conference on Communications and Electronics (ICCE).

Design of non-uniform aperture illumination RLSA and its applications in mm-Waves

Makoto Ando, Jiro Hirokawa, Tung Nguyen, 2015, 2015 International Symposium on Antennas and Propagation (ISAP).

A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2003 .

Moment Method Analysis of a Plane Wave Generator in an Oversized Rectangular Waveguide

Makoto Ando, Jiro Hirokawa, Takafumi Kai, 2007, IEICE Trans. Commun..

Feasibility of mechanical beam scan by movable dielectric blocks in the feeder of a single-layer waveguide array antenna

Makoto Ando, Jiro Hirokawa, Kimio Sakurai, 2006, IEICE Electron. Express.

Laser-Drilled All-Dielectric Huygens’ Transmit-Arrays as 120 GHz Band Beamformers

Jiro Hirokawa, Takashi Tomura, Mohamed K. Emara, 2020, IEEE Access.

Slotted ridged waveguide array designed with a reflection cancelling technique for multibeam applications in V-band

Makoto Ando, Ronan Sauleau, Jiro Hirokawa, 2015, 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

A Wideband 16×16-Element Corporate-Feed Hollow-Waveguide Slot Array Antenna in the 60-GHz Band

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2014, IEICE Trans. Commun..

A Two-Beam Waveguide Slot Array with Sidelobe Suppression

Makoto Ando, Jiro Hirokawa, Hiroshi Shinoda, 2001 .

Design of a 12×16-element double-layer corporate-feed waveguide slot array antenna

Miao Zhang, Satoshi Ito, Makoto Ando, 2014, 2014 International Symposium on Antennas and Propagation Conference Proceedings.

Source reconstruction technique for slot array antennas using the Gerchberg-Papoulis Algorithm

Makoto Ando, Jiro Hirokawa, Manuel Sierra-Castaner, 2014, The 8th European Conference on Antennas and Propagation (EuCAP 2014).

Development of Planar Antennas

Jiro Hirokawa, Yasuo Suzuki, Yasuo Suzuki, 2003 .

Broadband Design and Fabrication of Partially-Corporate Feed Double-Layer Waveguide Slot Antennas with Magnetic Wall Terminations due to Symmetrical Waveguide Connections

Makoto Ando, Jiro Hirokawa, Miao Zhang, 2010 .

A 60-GHz RLSA fed by butler matrix carrying three OAM modes

Kiyomichi Araki, Makoto Ando, Jiro Hirokawa, 2017, 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

Connected Post-Wall (C-PW) Waveguide for Efficient Design of Broad Wall Slots by Using Equivalent Solid-Wall Waveguide

Makoto Ando, Jiro Hirokawa, Jae-Ho Lee, 2010, IEICE Trans. Electron..

Evaluation of a 60 GHz compact-range gigabit wireless access system using a large array antenna

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI).

Beam-Switching Single-Layer Post-Wall Waveguide Slot Array Controlling Crossover & Sidelobes

Makoto Ando, Jiro Hirokawa, Keiichi Morimoto, 2007 .

A novel 60 GHz short range Gigabit wireless access system using a large array antenna

Miao Zhang, Toru Taniguchi, Makoto Ando, 2013, 2013 Proceedings of the International Symposium on Antennas & Propagation.

A study of the 60 GHz-band compact range wireless access system using large array antennas

Kiyomichi Araki, Miao Zhang, Makoto Ando, 2016, 2016 10th European Conference on Antennas and Propagation (EuCAP).

Design and fabrication of a waveguide two-dimensional slot array with low sidelobe level of −35dB

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2009, 2009 3rd European Conference on Antennas and Propagation.

A single-layer linear-to-circular polarization converter for a narrow-wall slotted waveguide array

Makoto Ando, Kyeong-Sik Min, Jiro Hirokawa, 1997 .

Accuracy Investigation of De-Embedding Techniques Based on Electromagnetic Simulation for On-Wafer RF Measurements

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2012 .

Material choices of honeycomb structures and their effects in mm-wave RLSAs

Makoto Ando, Jiro Hirokawa, Tung Nguyen, 2014, 2014 IEEE Fifth International Conference on Communications and Electronics (ICCE).

A rotating mode radial line slot antenna fed by a cavity resonator

Makoto Ando, Hiroyuki Arai, Jiro Hirokawa, 1994, Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.

Evaluation of Effective Conductivity of Copper-Clad Dielectric Laminate Substrates in Millimeter-Wave Bands Using Whispering Gallery Mode Resonators

Makoto Ando, Yoshinori Kogami, Jiro Hirokawa, 2009, IEICE Trans. Electron..

A 12×16-Element Double-Layer Corporate-Feed Waveguide Slot Array Antenna

Jiro Hirokawa, Makoto Ando, Miao Zhang, 2016, IEICE Trans. Commun..

60 GHz band compact range communication with a large array base station

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, 2014 Asia-Pacific Microwave Conference.

Millimeter-Wave Propagation Characteristics and Localized Rain Effects in a Small-Scale University Campus Network in Tokyo

Toru Taniguchi, Makoto Ando, Akira Yamaguchi, 2014, IEICE Trans. Commun..

Full-Wave Design Considering Slot Admittance in 2-D Waveguide Slot Arrays with Perfect Input Matching

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2011, IEICE Trans. Commun..

A single layer slotted waveguide array for 22 GHz band radio system between mobile base stations

Makoto Ando, Kunio Sakakibara, Jiro Hirokawa, 1994, Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.

One-Body 2-D Beam-Switching Butler Matrix with Waveguide Short-Slot 2-Plane Couplers

Makoto Ando, Jiro Hirokawa, Dong-Hun Kim, 2017, IEICE Trans. Electron..

Development of MMW waveguide slot arrays for gigabit wireless access in 5G cellular network

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2016, 2016 International Symposium on Antennas and Propagation (ISAP).

Plate-laminated waveguide slot array antennas for wireless mobile backhaul

Jiro Hirokawa, 2015, 2015 IEEE 4th Asia-Pacific Conference on Antennas and Propagation (APCAP).

A 60GHz-Band High-Efficiency Antenna with a Thick Resin Layer and Differentially Fed through a Hole in a Silicon Chip

Hiroshi Nakano, Makoto Ando, Jiro Hirokawa, 2016, IEICE Trans. Commun..

Investigation of reception zone in a 60 GHz-band compact-range wireless access system using a large array antenna

Kiyomichi Araki, Miao Zhang, Makoto Ando, 2015, 2015 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM).

Influence of the SMA connector and its modeling on electromagnetic simulation

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2015 .

Slot Design for Aperture Illumination Control of RLSA with High Loss Substrates

Makoto Ando, Jiro Hirokawa, Manuel Sierra Castañer, 2015 .

A Design of a Leaky Waveguide Crossed-Slot Linear Array with a Matching Element by the Method of Moments with Numerical-Eigenmode Basis Functions

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2005, IEICE Trans. Commun..

Reflection Characteristics of Center-Feed Single-Layer Waveguide Arrays

Sehyun Park, Makoto Ando, Jiro Hirokawa, 2005, IEICE Trans. Commun..

A PCB-Integratable Metal Cap Slot Antenna for 60-GHz Band Mobile Terminals

Jiro Hirokawa, Haruhisa Hirayama, Takashi Tomura, 2019, IEICE Trans. Commun..

Circularly Polarized Post-wall Waveguide Slotted Arrays

Makoto Ando, Jiro Hirokawa, Hisahiro Kai, 2004, IEICE Electron. Express.

Recent Progress of Rectangular-Coordinate Orthogonal Multiplexing Antenna System for Non-Far Region Communication

Kentaro Wada, Jiro Hirokawa, Takashi Tomura, 2018, 2018 IEEE Conference on Antenna Measurements & Applications (CAMA).

High data rate wireless transmission in the non-far zone with 2D orthogonal beams

Makoto Ando, Jiro Hirokawa, Karim Tekkouk, 2017, 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

An array antenna of slotted cylinder for land mobile base station

K. Kaneta, Jiro Hirokawa, Naohisa Goto, 1992, IEEE Antennas and Propagation Society International Symposium 1992 Digest.

Design for the feeding structure of a metal cap with two slots attaching at the edge of a mobile module substrate for 60GHz band

Makoto Ando, Jiro Hirokawa, Haruhisa Hirayama, 2016, 2016 International Symposium on Antennas and Propagation (ISAP).

Double-Layer Plate-Laminated Waveguide Slot Array Antennas for a 39GHz Band Fixed Wireless Access System

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, IEICE Trans. Commun..

Design and Measurement of the Plate Laminated Waveguide Slot Array Antenna and Its Feasibility for Wireless Link System in the 120GHz Band

Dongjin Kim, Tadao Nagatsuma, Makoto Ando, 2013 .

Designs and measurements of plate-laminated waveguide slot array antennas for 120GHz band and 350GHz band

Dongjin Kim, Tadao Nagatsuma, Makoto Ando, 2011, Asia-Pacific Microwave Conference 2011.

A Single-Layer Power Divider for a Slotted Waveguide Array Using π-Junctions with an Inductive Wall

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1996 .

A Waveguide Broad-Wall Transverse Slot Linear Array with Reflection-Canceling Inductive Posts and Grating-Lobe Suppressing Parasitic Dipoles

Makoto Ando, Jiro Hirokawa, M. G. Sorwar Hossain, 2005, IEICE Trans. Electron..

A Simple Through-Hole Based Transformer between Microstrip Line and Post-Wall Waveguide for Millimeter-Wave Applications

Makoto Ando, Jiro Hirokawa, Ning Guan, 2014, IEICE Trans. Electron..

A Transformer between a Thin Post-Wall Waveguide and a Standard Metal Waveguide via a Dielectric Substrate Insertion with Slits Etched on It

Makoto Ando, Jiro Hirokawa, Takafumi Kai, 2004 .

Prototype system evaluation and field trial of 40 GHz-band directional division duplex (DDD) radio system

Miao Zhang, Toru Taniguchi, Makoto Ando, 2016, 2016 International Symposium on Antennas and Propagation (ISAP).

Practical considerations of terahertz communications for short distance applications

Tadao Nagatsuma, Jiro Hirokawa, Kazuki Oogimoto, 2016, Nano Commun. Networks.

A Compact Multi-Beam End-Fire Circularly Polarized Septum Antenna Array for Millimeter-Wave Applications

Junsheng Yu, Yuan Yao, Jiro Hirokawa, 2018, IEEE Access.

Coupling of a circularly polarized slot pair on a corrugated waveguide of finite length

Makoto Ando, Jiro Hirokawa, Kei Sato, 2006, IEICE Electron. Express.

A Post-Wall Center-Feed Waveguide Circuit Consisting of T-Junctions for Reducing the Slot-Free Area in a Parallel Plate Slot Array Antenna

Makoto Ando, Jiro Hirokawa, Koh Hashimoto, 2010, IEICE Trans. Electron..

Eigenmode Analysis of Propagation Constant for a Microstrip Line with Dummy Fills on a Si CMOS Substrate

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2011, IEICE Trans. Electron..

Perpendicular-Corporate Feed in a Four-Layer Circularly-Polarized Parallel-Plate Slot Array

Jiro Hirokawa, Takashi Tomura, Hisanori Irie, 2019, IEICE Trans. Commun..

Control of phase in radial line slot antenna for 5G communications at 60GHz

Jiro Hirokawa, M. Sierra-Castañer, M. J. López Morales, 2017, 2017 11th European Conference on Antennas and Propagation (EUCAP).

A single-layer hollow-waveguide 8-way Butler matrix

Makoto Ando, Jiro Hirokawa, Shin-ichi Yamamoto, 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

Sidelobe Suppression in Both the E and H Planes Using Slit Layers over a Corporate-Feed Waveguide Slot Array Antenna Consisting of 2×2-Element Radiating Units

Jiro Hirokawa, Takashi Tomura, Haruka Arakawa, 2020, IEICE Trans. Commun..

Performance Analysis and Hardware Verification of Feature Detection Using Cyclostationarity in OFDM Signal

Fumio Watanabe, Jiro Hirokawa, Kanshiro Kashiki, 2018, IEICE Trans. Commun..

Comparison between one-body 2-D beam-switching Butler matrix and 2-D beam-switching Rotman lens

Makoto Ando, Ronan Sauleau, Jiro Hirokawa, 2016, 2016 International Symposium on Antennas and Propagation (ISAP).

Analysis using the virtual cavity method of a waveguide coupling junction with overlapping slots

Lars Manholm, Jiro Hirokawa, Per-Simon Kildal, 1996 .

Loss of Post-Wall Waveguides and Efficiency Estimation of Parallel-Plate Slot Arrays Fed by the Post-Wall Waveguide in the Millimeter-Wave Band

Makoto Ando, Jiro Hirokawa, Koh Hashimoto, 2011, IEICE Trans. Electron..

A novel 60 GHz compact-range gigabit wireless access system adopting a large array antenna

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS).

Mechanical Phase Shifting in the Power Divider for Single-Layer Slotted Waveguide Arrays

Makoto Ando, Jiro Hirokawa, Makoto Higaki, 2004 .

Design of a 60GHz RLSA for compact range applications

Makoto Ando, Jiro Hirokawa, Tung Nguyen, 2014, 2014 International Symposium on Antennas and Propagation Conference Proceedings.

A Coaxial Feeder with Two Pairs of Parasitic Pins for Realizing Rotationally Symmetric Aperture Illumination in Spiral Array Radial Line Slot Antennas

Makoto Ando, Jiro Hirokawa, Hideki Ueda, 2010, IEICE Trans. Commun..

Single-Layer Slotted Waveguide Arrays for Millimeter Wave Applications

Makoto Ando, Kunio Sakakibara, Jiro Hirokawa, 1996 .

Periodic Boundary Condition for Evaluation of External Mutual Couplings in a Slotted Waveguide Array

Makoto Ando, Kunio Sakakibara, Jiro Hirokawa, 1996 .

Compact X-Band Synthetic Aperture Radar for 100kg Class Satellite

Jiro Hirokawa, Hirobumi Saito, Hiromi Watanabe, 2014, IEICE Trans. Commun..

Analysis of intersymbol interference in a 60 GHz-band compact-range wireless access system using various large array antennas

Kiyomichi Araki, Miao Zhang, Makoto Ando, 2015, 2015 International Symposium on Antennas and Propagation (ISAP).

Fabrication and Evaluation of Integrated Photonic Array-Antenna System for RoF Based Remote Antenna Beam Forming

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2019, IEICE Trans. Electron..

Beam steering scheme of photonic array-antennas for 60 GHz RF signals generated by optical two-tone technique

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2014, 2014 OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology.

Education materials of electricity and magnetism using MATLAB

Jiro Hirokawa, Takuichi Hirano, 2017, 2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

PAPER Special Section on Recent Devices, Circuits, and Systems for Millimeter-wave ITS Applications An Alternating-Phase Fed Single-Layer Slotted Waveguide Array in 76GHz Band and Its Sidelobe Suppression

Misao Haneishi, Makoto Ando, Jiro Hirokawa, 2005 .

Visualization of electromagnetic waves for education

Jiro Hirokawa, Takuichi Hirano, 2017, 2017 IEEE International Conference on Computational Electromagnetics (ICCEM).

Design of a center-feed waveguide feeder for wideband rectangular parallel-plate slot-array antenna on-board space-borne X-band SAR system

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2016, 2016 46th European Microwave Conference (EuMC).

Rain-rate time series generation algorithm at two different locations for millimeter-wave wireless link simulator

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

Wideband Waveguide Short-Slot 2-Plane Coupler Using Frequency Shift of Propagating Modes

Makoto Ando, Jiro Hirokawa, Dong-Hun Kim, 2018, IEICE Trans. Electron..

Cost-Effective 60-GHz Antenna Package With End-Fire Radiation for Wireless File-Transfer System

Makoto Ando, Ryosuke Suga, Jiro Hirokawa, 2010, IEEE Transactions on Microwave Theory and Techniques.

Electromagnetic Modeling of Skin and Fat for Design of Body Diagnostic Antennas

Makoto Ando, Takamaro Kikkawa, Jiro Hirokawa, 2015 .

An Alternating-Phase Fed Single-Layer Slotted Waveguide Array in 76 GHz Band and Its Sidelobe Suppression

Misao Haneishi, Makoto Ando, Jiro Hirokawa, 2005, IEICE Trans. Electron..

Fabrication of Alternating-Phase Fed Single-Layer Slotted Waveguide Arrays Using Plastic Materials with Metal-Plating

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2008, IEICE Trans. Commun..

Evaluation of effective conductivity of copper post and transmission losses of post-wall waveguide in millimeter wave band

Jiro Hirokawa, Thi Huong Tran, 2011, The 2011 International Conference on Advanced Technologies for Communications (ATC 2011).

Propagation Characteristics of Honeycomb Structures Used in mm-Wave Radial Line Slot Antennas

Makoto Ando, Jiro Hirokawa, Kimio Sakurai, 2014, IEICE Trans. Commun..

Design of 1 m2 Order Plasma Excitation Single-Layer Slotted Waveguide Array with Conducting Baffles and Quartz Glass Strips Using the GSM-MoM Analysis

Makoto Ando, Jiro Hirokawa, Atsushi Sasaki, 2006, IEICE Trans. Commun..

Step Width Tolerable for Offset of the Aperture in a Millimeter-Wave Transducer between Post-Wall and Hollow Standard Waveguides

Makoto Ando, Jiro Hirokawa, JungAun Lee, 2008, IEICE Trans. Electron..

A Cost-Effective Transition between a Microstrip Line and a Post-Wall Waveguide Using a Laminated LTCC Substrate in 60-GHz Band

Hiroshi Nakano, Makoto Ando, Jiro Hirokawa, 2007, IEICE Trans. Electron..

Stable operation of an oscillator chip mounted on a thick-resin patch antenna on a silicon chip in the 60GHz band

Makoto Ando, Jiro Hirokawa, Yasutake Hirachi, 2015, 2015 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM).

Analysis and uniform design of a single-layer slotted waveguide array antenna with baffles

Makoto Ando, Jiro Hirokawa, Takehito Suzuki, 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

Design and fabrication of millimeter wave slotted waveguide arrays

Miao Zhang, Makoto Ando, Jaeho Lee, 2010, Proceedings of the Fourth European Conference on Antennas and Propagation.

Study toward multi-beam patterns suitable for multi-beam massive MIMO

Takefumi Hiraguri, Kentaro Nishimori, Jiro Hirokawa, 2019, 2019 International Symposium on Antennas and Propagation (ISAP).

Analysis of Intersymbol Interference Characterized by the Large Array Antennas Adopted in a 60-GHz-Band Gigabit Compact-Range Wireless Access System

Kiyomichi Araki, Miao Zhang, Makoto Ando, 2021, IEEE Access.

Control of 120-GHz-Band Split Ring Resonator Filter by Coupling Lattice Pattern Substrate

Norihiko Sekine, Akifumi Kasamatsu, Tadao Nagatsuma, 2021, IEICE Trans. Electron..

Millimeter-Wave Multiplexed Wideband Wireless Link Using Rectangular-Coordinate Orthogonal Multiplexing (ROM) Antennas

Guillermo Carpintero, Jiro Hirokawa, Takashi Tomura, 2021, Journal of Lightwave Technology.

Errors in Shortened Far-Field Gain Measurement Due to Mutual Coupling

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2014, IEEE Transactions on Antennas and Propagation.

94GHz Single-Layer Slotted Waveguide Array by Diffusion Bonding of Laminated Thin Plates

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2008 .

Novel single-layer waveguides for high-efficiency millimeter wave arrays

Makoto Ando, Jiro Hirokawa, Y. Kimura, 1997, 1997 Topical Symposium on Millimeter Waves. Proceedings (Cat. No.97TH8274).

A single-layer hollow-waveguide 8-way Butler matrix

Makoto Ando, Jiro Hirokawa, Shin-ichi Yamamoto, 2005 .

A 120-degree beamwidth post-wall waveguide slot array with a three-way power divider on a single-layer dielectric substrate

Makoto Ando, Jiro Hirokawa, M. Ando, 2003, 2003 IEEE Topical Conference on Wireless Communication Technology.

Dipole antenna on a thick resin layer on the back side of a silicon chip at 60GHz

Makoto Ando, Jiro Hirokawa, Yasutake Hirachi, 2009, 2009 European Microwave Conference (EuMC).

A millimeter-wave transformer between microstrip line and flexible post-wall waveguide on liquid crystal polymer substrates

Makoto Ando, Jiro Hirokawa, Ning Guan, 2013, 2013 IEEE MTT-S International Microwave Symposium Digest (MTT).

A parallel plate slot-pair array dual polarization antenna for small satellite SAR

Miao Zhang, Jiro Hirokawa, Hirobumi Saito, 2015, 2015 International Symposium on Antennas and Propagation (ISAP).

4×4-element corporate-feed waveguide slot array antenna with cavities for the 120 GHz-band

Dongjin Kim, Makoto Ando, Jiro Hirokawa, 2013, 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).

A Planar Cross-Junction Power Divider for the Center Feed in Single-Layer Slotted Waveguide Arrays

Makoto Ando, Jiro Hirokawa, Jiro Hirokawa, 2002 .

Bandwidth of a four-aperture element for a double-layer corporate-feed hollow-waveguide slot array

Makoto Ando, Jiro Hirokawa, Goro Yoshida, 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

Planar waveguide antennas for Millimeter-wave systems

Makoto Ando, Jiro Hirokawa, 2009 .

A matching slot pair for a circularly-polarized slotted waveguide array

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1990 .

Study of material loss in mm-wave RLSA with honeycomb structure

Makoto Ando, Jiro Hirokawa, Kimio Sakurai, 2013, 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).

A Rotating Mode Radial Line Slot Antenna

Hiroyuki Arai, Makoto Ando, Jiro Hirokawa, 1993 .

An analysis of a waveguide T junction with an inductive post

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1991 .

Single-Layer Waveguide Circuit to control Sidelobe and Crossover Levels in Butler-Matrix Beam-Switching Antenna

Makoto Ando, Jiro Hirokawa, M. Ando, 2007 .

Corporate-Feed Slotted Waveguide Array Antenna in the 350-GHz Band by Silicon Process

Tadao Nagatsuma, Jiro Hirokawa, Hiroyuki Seto, 2017, IEEE Transactions on Antennas and Propagation.

A 60GHz double-layer waveguide slot array with more than 32dBi and 80% efficiency over 5GHz bandwidth fabricated by diffusion bonding of laminated thin metal plates

Makoto Ando, Jiro Hirokawa, Goro Yoshida, 2010, 2010 IEEE Antennas and Propagation Society International Symposium.

Design of Post-wall Feed Waveguide for a Parallel Plate Slot Array by a Solid-wall Model with Improved Equivalent Wall Thickness

Makoto Ando, Jiro Hirokawa, Koh Hashimoto, 2009 .

Design of a Double-Layer Slotted Waveguide Array with a Partially-Corporate Feed Circuit Installed in the Lower Layer and its Fabrication by Diffusion Bonding of Laminated Thin Plates at 38GHz Band

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2009 .

Excitation of an untilted narrow-wall slot in a rectangular waveguide by using etched strips on a dielectric plate

Jiro Hirokawa, P.-S. Kildal, 1997 .

94GHz fabrication of a slotted waveguide array antenna by diffusion bonding of laminated thin plates

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2009, 2009 IEEE Sensors.

A simple millimeter-wave transformer between microstrip line and post-wall waveguide

Makoto Ando, Jiro Hirokawa, Ning Guan, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

High-efficiency wide-band double-layer slotted hollow waveguide array antennas by diffusion bonding of laminated thin metal plates

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2010, 2010 Conference Proceedings ICECom, 20th International Conference on Applied Electromagnetics and Communications.

Photonic architecture for beam forming of RF phased array antenna

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2014, OFC 2014.

U-shaped slots for circularly polarized slotted waveguide array

Makoto Ando, Kyeong-Sik Min, Jiro Hirokawa, 1995, IEEE Antennas and Propagation Society International Symposium. 1995 Digest.

Rotating Modes Excited by an Electric-Wall Cavity Resonator for Radial Line Slot Antennas

Makoto Ando, Jiro Hirokawa, Tatsuya Yamamoto, 1997 .

Reduction of Long Line Effects in Single-Layer Slotted Waveguide Arrays With an Embedded Partially Corporate Feed

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2010, IEEE Transactions on Antennas and Propagation.

Ridged Cross-Junction Power Divider for the Center Feed in a Single-Layer Slotted Waveguide Array #

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 2006 .

Electromagnetic simulation modeling of silicon substrate for 60 GHz on-chip differential-feed dipole antenna

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2013 .

Sidelobe suppression in 76-GHz post-wall waveguide-fed parallel-plate slot arrays

Makoto Ando, Jiro Hirokawa, M. Ando, 2000 .

Efficiency of 76GHz Post-Wall Waveguide-Fed Parallel Plate Slot Arrays

Makoto Ando, Jiro Hirokawa, M. Ando, 1999, 1999 29th European Microwave Conference.

High gain radial line slot antennas for millimetre wave applications

Makoto Ando, Jiro Hirokawa, T. Yamamoto, 2000 .

A Four-Way Divider for Partially-Corporate Feed in an Alternating-Phase Fed Single-Layer Slotted Waveguide Array

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2008 .

76 GHz post-wall waveguide fed parallel plate slot array with 45 degree linear polarization

Jiro Hirokawa, M. Ando, 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

Transformer between a thin post-wall waveguide to a standard metal waveguide

Makoto Ando, Jiro Hirokawa, Takafumi Kai, 2002, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).

Design of a linear array of transverse slots without cross-polarization to any directions on a hollow rectangular waveguide

Makoto Ando, Jiro Hirokawa, Jun Takeuchi, 2013, 2013 Proceedings of the International Symposium on Antennas & Propagation.

Single-layer dipole array for linear-to-circular polarisation conversion of slotted waveguide array

Jiro Hirokawa, N. Goto, K. Sakurai, 1996 .

Design and fabrication of a dual-polarization corporate-feed waveguide 32×32-slot array antenna for 120 GHz band

Makoto Ando, Jiro Hirokawa, Jun Takeuchi, 2014, 2014 International Symposium on Antennas and Propagation Conference Proceedings.

Cavity-backed wide slot antenna

Hiroyuki Arai, Jiro Hirokawa, N. Goto, 1989 .

Photonics-Based Millimeter-Wave Band Remote Beamforming of Array-Antenna Integrated With Photodiode Using Variable Optical Delay Line and Attenuator

Shigeyuki Akiba, Jiro Hirokawa, Takashi Tomura, 2018, Journal of Lightwave Technology.

Design and fabrication of a corporate-feed plate-laminated waveguide slot array antenna for 120GHz-band

Dongjin Kim, Tadao Nagatsuma, Makoto Ando, 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

Wideband design of a circularly-polarized plate-laminated waveguide slot array antenna

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, 2014 International Symposium on Antennas and Propagation Conference Proceedings.

Lateral radiation millimeter-wave antenna package using post-wall waveguide

Makoto Ando, Ryosuke Suga, Jiro Hirokawa, 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

Millimeter-wave transmission-loss evaluation of microstrip lines and post-wall waveguides and effects on efficiency of post-wall waveguide slot arrays

Makoto Ando, Jiro Hirokawa, Yuanfeng She, 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

Accelerant method for Green's function of horizontal dipole in parallel plate waveguide

Ronghong Jin, Jiro Hirokawa, M. Ando, 1998 .

Millimeter-Wave Planar Broadband Circularly Polarized Antenna Array Using Stacked Curl Elements

Wei Hong, Chen Yu, Jiro Hirokawa, 2017, IEEE Transactions on Antennas and Propagation.

Loss evaluation of post-wall waveguides and its effect on antenna efficiency in millimeter-wave bands

Makoto Ando, Jiro Hirokawa, Yuanfeng She, 2009, 2009 Asia Pacific Microwave Conference.

A concise design of large mm-Wave Radial Line Slot Antenna with honeycomb structures for space application

Makoto Ando, Jiro Hirokawa, Kimio Sakurai, 2014, 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS).

A ultra low-loss silica-based transformer between microstrip line and post-wall waveguide for millimeter-wave antenna-in-package applications

Makoto Ando, Jiro Hirokawa, Ning Guan, 2014, 2014 IEEE MTT-S International Microwave Symposium (IMS2014).

E-Band Plate-Laminated Waveguide Filters and Their Integration Into a Corporate-Feed Slot Array Antenna With Diffusion Bonding Technology

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2016, IEEE Transactions on Microwave Theory and Techniques.

An E-band slotted waveguide monopulse array antenna with corporate-feed using diffusion bonding of laminated plates

Makoto Ando, Jiro Hirokawa, Xin Xu, 2016, 2016 International Symposium on Antennas and Propagation (ISAP).

Waveguide-fed parallel plate slot array antenna

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1992 .

X-band parallel-plate slot array antenna for SAR sensor onboard 100 kg small satellite

Makoto Ando, Jiro Hirokawa, Hirobumi Saito, 2015, 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

Waveguide matching crossed-slot

Makoto Ando, Jiro Hirokawa, T. Hirano, 2003 .

Waveguide pi -junction with an inductive post

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1992, IEEE Antennas and Propagation Society International Symposium 1992 Digest.

Compact X-band Synthetic Aperture Radar with Deployable Plane Antenna and RF Feeding System through Non-contact Waveguides - Project of a 100kg-class SAR Satellite

Seiko Shirasaka, Jiro Hirokawa, Hirobumi Saito, 2016 .

Azimuthally Perturbed Feed for Compensation of Rotational Asymmetry Excitation in Spiral Array Radial Line Slot Antennas

Makoto Ando, Jiro Hirokawa, Matteo Albani, 2009 .

LTCC Oversized Rectangular Waveguide Slot Array Antenna With Air-Layer in the Radiating Part in the Millimeter-Wave Band

Makoto Ando, Jiro Hirokawa, Yuanfeng She, 2013, IEEE Transactions on Antennas and Propagation.

A circularly-polarized aperture array antenna with a corporate-feed hollow-waveguide circuit in the 60 GHz-band

Makoto Ando, Jiro Hirokawa, Goro Yoshida, 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

Dual-band-rejection filter for distortion reduction in RF transmitters

Makoto Ando, Jiro Hirokawa, M. Miyazaki, 2004, IMS 2004.

10-Gbit/s dual channel transmission of 120-GHz-band wireless link using planar slot array antennas

Dongjin Kim, Jiro Hirokawa, Jun Takeuchi, 2013, 2013 European Microwave Conference.

Characteristics of E- to H-Plane Multiple Way Power Divider for the Center Feed in Alternating Phase Fed Single-Layer Slotted Waveguide Array

Makoto Ando, Jiro Hirokawa, Y. Tsunemitsu, 2005 .

Design of a dual-polarization corporate-feed waveguide 32×32-slot array antenna for 120 GHz band

Makoto Ando, Jiro Hirokawa, Jun Takeuchi, 2014, 2014 IEEE International Workshop on Electromagnetics (iWEM).

A slotted waveguide array using reflection-cancelling slot pairs

Makoto Ando, Kunio Sakakibara, Jiro Hirokawa, 1993, Proceedings of IEEE Antennas and Propagation Society International Symposium.

Isolation between H-plane Arranged Two Waveguide Slot Antennas including a Radome

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2009 .

Analysis of an untilted wire-excited slot in the narrow wall of a rectangular waveguide by including the actual external structure

Jiro Hirokawa, L. Manholm, P.-S. Kildal, 1997 .

COMPACT X-band SYNTHETIC APERTURE RADAR with DEPLOYABLE PLANE ANTENNA –PROJECT of a100kg-CLASS SAR SATELLITE -

Miao Zhang, Jiro Hirokawa, Hirobumi Saito, 2016 .

Proto-Flight Model of SAR for 100kg Class Small Satellite

Jiro Hirokawa, Hirobumi Saito, Makoto Mita, 2019 .

Study of a high gain radial line slot antenna in Ka-band for space uses

Makoto Ando, Jiro Hirokawa, Kimio Sakurai, 2013, 2013 International Symposium on Electromagnetic Theory.

Quantitative analysis of rainfall variability in Tokyo Tech MMW small-scale model network

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2013, 2013 Proceedings of the International Symposium on Antennas & Propagation.

Plate-laminated-waveguide corporate-feed slot array antennas with a polarization conversion layer

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2011, 2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies.

High-gain and high-efficiency single-layer slotted waveguide array for use in 22 GHz band

Makoto Ando, Kunio Sakakibara, Jiro Hirokawa, 1996 .

A 40 GHz-band double-layer waveguide slot array fed from four corners to suppress sidelobes

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2014, 2014 International Symposium on Antennas and Propagation Conference Proceedings.

Postwall waveguide slot array with cosecant radiation pattern and null filling for base station antennas in local multidistributed systems

Makoto Ando, Jiro Hirokawa, C. Yamazaki, 2002 .

Wideband and Large Coverage Continuous Beam Steering Antenna in the 60-GHz Band

Makoto Ando, Ronan Sauleau, Jiro Hirokawa, 2017, IEEE Transactions on Antennas and Propagation.

A low-profile mobile DBS receiving system using a single-layer slotted leaky waveguide array

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1994, Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.

Reflection bandwidth enhancement of a 2×2-element wide slot sub-array on a wall-inserted cavity

Makoto Ando, Jiro Hirokawa, Takashi Tomura, 2013, 2013 International Symposium on Electromagnetic Theory.

Thru-Line (TL) Calibration Technique for On-Wafer Measurement

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2010 .

Polarization Isolation Characteristics Between Two Center-Feed Single-Layer Waveguide Arrays Arranged Side-by-Side ( Invited Paper )

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 2006 .

An E-Band Partially Corporate Feed Uniform Slot Array With Laminated Quasi Double-Layer Waveguide and Virtual PMC Terminations

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2011, IEEE Transactions on Antennas and Propagation.

Waveguide π-Junction with an Inductive Post

Makoto Ando, Jiro Hirokawa, Naohisa Goto, 1992 .

Fabrication of a slotted waveguide array at 94GHz by diffusion bonding of laminated thin plates

Miao Zhang, Makoto Ando, Jiro Hirokawa, 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

45° linearly Polarized Post Wall Waveguide-fed Parallel plate Slot Arrays

Jiro Hirokawa, 2000 .

Method of moments analysis of a waveguide crossed slot by using the eigenmode basis functions derived by the edge-based finite-element method

Jiro Hirokawa, T. Hirano, M. Ando, 2000 .

Amplitude modulated digital signal transmission in RoF system for MMW-RF antenna beam steering

Shigeyuki Akiba, Makoto Ando, Jiro Hirokawa, 2015, 2015 Opto-Electronics and Communications Conference (OECC).

Perpendicular-Corporate Feed in Three-Layered Parallel-Plate Radiating-Slot Array

Jiro Hirokawa, Hisanori Irie, 2017, IEEE Transactions on Antennas and Propagation.

Localized behaviors of rain measured in Tokyo Tech millimeter-wave wireless network

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).

Alternating-phase fed single-layer slotted waveguide arrays with chokes dispensing with narrow wall contacts

Makoto Ando, Jiro Hirokawa, Y. Kimura, 2001 .

Analysis and Design of a Wideband Endfire Circularly Polarized Septum Antenna

Junsheng Yu, Yuan Yao, Jiro Hirokawa, 2018, IEEE Transactions on Antennas and Propagation.

Design and Fabrication of a Dual-Polarization Waveguide Slot Array Antenna With High Isolation and High Antenna Efficiency for the 60 GHz Band

Dongjin Kim, Miao Zhang, Makoto Ando, 2014, IEEE Transactions on Antennas and Propagation.

Link correlation property in Tokyo tech millimeter-wave model network

Makoto Ando, Jiro Hirokawa, Takuichi Hirano, 2013, 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).

Bandwidth Enhancement of a Four-aperture Element Considering Mutual Coupling for a Double-layer Corporate-feed Hollow-waveguide Slot Array

Makoto Ando, Jiro Hirokawa, Goro Yoshida, 2009 .