3D-Printed Quasi-Cylindrical Bragg Reflector to Boost the Gain and Directivity of cm- and mm-Wave Antennas

We demonstrate a concept for a large enhancement of the directivity and gain of readily available cm- and mm-wave antennas, i.e., without altering any property of the antenna design. Our concept exploits the high reflectivity of a Bragg reflector composed of three bilayers made of transparent materials. The cavity has a triangular aperture in order to resemble the idea of a horn-like, highly directive antenna. Importantly, we report gain enhancements of more than 400% in relation to the gain of the antenna without the Bragg structure, accompanied by a highly directive radiation pattern. The proposed structure is cost-effective and easy to fabricate with 3D-printing. Our results are presented for frequencies within the conventional WiFi frequencies, based on IEEE 802.11 standards, thus, enabling easily implementation by non-experts and needing only to be placed around the antenna to improve the directivity and gain of the signal.

[1]  S. O. Yakushev,et al.  Chirp compression with single chirped mirrors and its assembly , 2008, Microelectron. J..

[2]  S. K. Parui,et al.  Performance Enhancement of a Dual-Band Monopole Antenna by Using a Frequency-Selective Surface-Based Corner Reflector , 2016, IEEE Transactions on Antennas and Propagation.

[3]  Zhang Ye-rong,et al.  Low-profile microwave lens antenna based on isotropic Huygens' metasurfaces , 2017 .

[4]  S. Burokur,et al.  Planar metamaterial-based beam-scanning broadband microwave antenna , 2014 .

[5]  Sima Noghanian,et al.  DESIGN AND FABRICATION OF ANTENNAS USING 3D PRINTING , 2018 .

[6]  Xia Zhou,et al.  3D Printing Your Wireless Coverage , 2015, HotWireless@MobiCom.

[7]  Fariborz Parandin,et al.  Antenna Patch Design Using a Photonic Crystal Substrate at a Frequency of 1.6 THz , 2019, Wireless Personal Communications.

[8]  W. Hong,et al.  Integrated Broadband Circularly Polarized Multibeam Antennas Using Berry-Phase Transmit-Arrays for $Ka$ -Band Applications , 2020, IEEE Transactions on Antennas and Propagation.

[9]  Igor A. Sukhoivanov,et al.  Air-gap silicon nitride chirped mirror for few-cycle pulse compression , 2008 .

[10]  David Li,et al.  A Novel and Versatile Parabolic Reflector that Significantly Improves Wi-Fi Reception at Different Distances and Angles , 2013 .

[11]  M. Mrozowski,et al.  High Q-factor microwave Fabry-Perot resonator with distributed Bragg reflectors , 2005, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[12]  Kyungwhoon Cheun,et al.  Millimeter-wave beamforming as an enabling technology for 5G cellular communications: theoretical feasibility and prototype results , 2014, IEEE Communications Magazine.

[14]  Chi-Hyung Ahn,et al.  Antenna Gain Enhancement Using a Holey Superstrate , 2016, IEEE Transactions on Antennas and Propagation.

[15]  Yong-Chang Jiao,et al.  3-D-Printed Comb Mushroom-Like Dielectric Lens for Stable Gain Enhancement of Printed Log-Periodic Dipole Array , 2018, IEEE Antennas and Wireless Propagation Letters.

[16]  Xi Xiong,et al.  Customizing indoor wireless coverage via 3D-fabricated reflectors , 2017, BuildSys@SenSys.

[17]  P. Mahouti,et al.  A novel design of high performance multilayered cylindrical dielectric lens antenna using 3D printing technology , 2019, International Journal of RF and Microwave Computer-Aided Engineering.

[18]  Abdelmoumen Kaabal,et al.  DESIGN OF HIGH GAIN ULTRA WIDE-BAND ANTENNA FOR WIRELESS COMMUNICATION USING EBG STRUCTURES , 2013 .

[19]  R. Rumpf,et al.  Broadband Microwave Frequency Characterization of 3-D Printed Materials , 2013, IEEE Transactions on Components, Packaging and Manufacturing Technology.

[20]  Hailiang Zhu,et al.  Enhancing Antenna Boresight Gain Using a Small Metasurface Lens: Reduction in half-power beamwidth. , 2016, IEEE Antennas and Propagation Magazine.

[21]  T. Denidni,et al.  A New Corner-Reflector Antenna With Tunable Gain Based on Active Frequency Selective Surfaces , 2020, IEEE Open Journal of Antennas and Propagation.

[22]  Martin Koch,et al.  3D Printed Prisms with Tunable Dispersion for the THz Frequency Range , 2018 .

[24]  C. Pfeiffer,et al.  A Printed, Broadband Luneburg Lens Antenna , 2010, IEEE Transactions on Antennas and Propagation.

[25]  Costas M. Soukoulis,et al.  Wave Propagation: From Electrons to Photonic Crystals and Left-Handed Materials , 2008 .

[26]  Min Liang,et al.  3D printing technology for RF and THz antennas , 2016, 2016 International Symposium on Antennas and Propagation (ISAP).

[27]  Lorenz-Peter Schmidt,et al.  Fully Electronic $E$-Band Personnel Imager of 2 m $^2$ Aperture Based on a Multistatic Architecture , 2013, IEEE Transactions on Microwave Theory and Techniques.

[28]  T. I. Yuk,et al.  Microwave Lens Using Periodic Dielectric Sheets for Antenna-Gain Enhancement , 2017, IEEE Transactions on Antennas and Propagation.

[29]  Raj Mittra,et al.  On the Synthesis of a Flat Lens using a Wideband Low-Reflection Gradient-Index Metamaterial , 2011 .