M. Ugajin

发表

Macromodels in the frequency domain analysis of microwave resonators

M. Harada, M. Ugajin, A. Yamagishi, 2004, IEEE Journal of Solid-State Circuits.

A 0.6-V Supply, Voltage-Reference Circuit Based on Threshold-Voltage-Summation Architecture in Fully-Depleted CMOS/SOI

M. Ugajin, T. Tsukahara, Suzuki Kenji, 2002 .

A 1-V 2-GHz RF Receiver with 49 dB of Image Rejection in CMOS/SIMOX

M. Ugajin, J. Kodate, T. Tsukahara, 2002, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

Analysis of Electret-Based MEMS Vibrational Energy Harvester With Slit-and-Slider Structure

M. Ugajin, K. Ono, M. Ugajin, 2012, Journal of Microelectromechanical Systems.

Energy harvesting by MEMS vibrational devices with electrets

H. Morimura, M. Ugajin, T. Shimamura, 2009, TRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference.

Synchronized Multiple-Array Vibrational Device for Microelectromechanical System Electrostatic Energy Harvester

Norio Sato, Toshishige Shimamura, Tomomi Sakata, 2012 .

A Sub-nanoampere Two-stage Power Management Circuit in 0.35-µm CMOS for Dust-Size Batteryless Sensor Nodes

Shin'ichiro Mutoh, Mamoru Ugajin, Mitsuru Harada, 2010 .

A Subnanowatt Vibration-sensing Circuit for Dust-size Battery-less Sensor Nodes

H. Morimura, M. Ugajin, S. Mutoh, 2010 .

Gain Improvement of a 2.4-GHz/5-GHz CMOS Low Noise Amplifier by Using High-Resistivity Silicon-on-Insulator Wafers

M. Ugajin, J. Kodate, T. Tsukahara, 2003 .

Novel Access Control Scheme with Collision Detection Utilizing MIMO Transmission Procedure in WLAN Systems

Takefumi Hiraguri, Kentaro Nishimori, Mamoru Ugajin, 2018, IEICE Trans. Commun..

Deep submicrometer super self-aligned Si bipolar technology with 25.4 ps ECL

S. Konaka, M. Ugajin, T. Matsuda, 1994 .

A simulation study of high-speed silicon heteroemitter bipolar transistors

Yoshihito Amemiya, Mamoru Ugajin, Shinsuke Konaka, 1989 .

The base-collector heterojunction effect in SiGe-base bipolar transistors

Y. Amemiya, M. Ugajin, 1991 .

A Nanometer-Base Silicon Bipolar Transistor Using an Ultra-Shallow Gallium Diffusion Process

Y. Amemiya, S. Konaka, M. Ugajin, 1987 .

Integrated MEMS LC Resonator with Sealed Air-Suspended Structure for Single-Chip RF LSIs

Hiroki Morimura, Kei Kuwabara, Norio Sato, 2007, 2007 IEEE International Electron Devices Meeting.

[Papers] Multiple-transmission-rate scheme using SVC technology and QoE control suitable for multicast distribution over WLAN systems

Takefumi Hiraguri, Kentaro Nishimori, Mamoru Ugajin, 2018 .

Very-high f/sub T/ and f/sub max/ silicon bipolar transistors using ultra-high-performance super self-aligned process technology for low-energy and ultra-high-speed LSI's

M. Ugajin, T. Sakai, Junichi Kodate, 1995, Proceedings of International Electron Devices Meeting.

A 1 V 12 mW 2 GHz receiver with 49 dB image rejection in CMOS/SIMOX

M. Ugajin, T. Tsukahara, J. Kodate, 2001, 2001 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC (Cat. No.01CH37177).

A quadrature voltage-controlled oscillator using phase-adjusting architecture for suppressing phase noise

M. Ugajin, N. Itoh, Yuya Kakei, 2021, IEICE Electron. Express.

High-image-rejection wireless-receiver architecture with a 3-phase active RC complex filter

Tsuneo Tsukahara, Mamoru Ugajin, Yuta Kobayashi, 2015, IEICE Electron. Express.

Macromodels in the frequency domain analysis of microwave resonators

M. Ugajin, A. Yamagishi, J. Kodate, 2004, IEEE J. Solid State Circuits.

A 1-V 2.4-GHz FSK receiver with a complex BPF and a frequency doubler in CMOS/SOI

M. Ugajin, T. Tsukahara, M. Ugajin, 2003, Proceedings of the IEEE 2003 Custom Integrated Circuits Conference, 2003..

Design methodology of low-power CMOS RF-ICs

M. Ugajin, A. Yamagishi, J. Kodate, 2003, Proceedings of the ASP-DAC Asia and South Pacific Design Automation Conference, 2003..

A Study of Phase-Adjusting Architectures for Low-Phase-Noise Quadrature Voltage-Controlled Oscillators

M. Ugajin, N. Itoh, Yuya Kakei, 2023, IEICE Trans. Electron..

RF-CMOS Circuits Technologies and Future Trends

Tsuneo Tsukahara, Akihiro Yamagishi, Mamoru Ugajin, 2003 .

An (N+N2)-Mixer Architecture for a High-Image-Rejection Wireless Receiver with an N-Phase Active Complex Filter

Takefumi Hiraguri, Tsuneo Tsukahara, Mamoru Ugajin, 2017, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

CMOS RF トランシーバの構成法 Design Examples of CMOS RF Transceivers

M. Ugajin, A. Yamagishi, J. Kodate, 2004 .