Title of Paper:Backlobe and Sidelobe Suppression of a Q-Band Patch Antenna Array by Using Substrate Integrated Coaxial Line Feeding Technique

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Affiliation of Author(s):电子信息工程学院

Journal:IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS

Key Words:Liquid crystal polymer millimeter wave antenna patch antenna array substrate integrated coaxial line (SICL)

Abstract:A low profile aperture-coupled patch antenna array with high front-to-back-ratio (FTBR) is designed at Q-band by using substrate integrated coaxial line technique, the intrinsic shielded enclosure of which is capable of constructing an equal-phase and amplitude-tapering feeding network with backlobe suppression. An illustrative example of a 6 x 6 patch antenna array is designed and fabricated with a 2 x 2 prior verification module by using multilayer liquid crystal polymer process. Measured results indicate that the array can achieve a gain of 17.6 dBi at 41.5 GHz and the first sidelobe levels is -24.1 dB in the E-plane and -20.4 dB in the H-plane. The holistic FTBR is better than 27 dB in both planes.

ISSN No.:1536-1225

Translation or Not:no

Date of Publication:2017-01-01

Co-author:邢可,郭子均,魏香云,赵仁荣,马羽

Correspondence Author:Liu Bing