A X-/Ka-Band Circularly Polarized Shared-Aperture Phased Array Antenna

Lu Yang Ji, Shi Gang Zhou, Jian Ying Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A circularly polarized (CP) X-/Ka-band shared- aperture phased array is proposed in this paper. Its unit cell consists of one X-band element and 3 × 3 Ka-band elements. The Ka-band element is a rectangular dielectric resonator antenna (DRA) with a metasurface etched on the top side. The X-band element is a dual-feed magneto-electric dipole antenna with dual CP capabilities. By hollowing out the center and the sides of the dipole antenna, 3 × 3 Ka-band elements can effectively share the same aperture with the X-band element. A shared-aperture array prototype was fabricated and measured for performance verification. The results show that the proposed array can achieve an impedance bandwidth from 7 GHz to 8.5 GHz for the X-band and from 26 GHz to 28 GHz for the Ka-band. It can realize ± 45° beam scanning with an axial ratio (AR) variation less than 5 dB for both bands.

源语言英语
主期刊名EuCAP 2025 - 19th European Conference on Antennas and Propagation
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9788831299107
DOI
出版状态已出版 - 2025
活动19th European Conference on Antennas and Propagation, EuCAP 2025 - Stockholm, 瑞典
期限: 30 3月 20254 4月 2025

出版系列

姓名EuCAP 2025 - 19th European Conference on Antennas and Propagation

会议

会议19th European Conference on Antennas and Propagation, EuCAP 2025
国家/地区瑞典
Stockholm
时期30/03/254/04/25

引用此