Chang, TengTengChangHSI-TSENG CHOU2024-04-032024-04-032023-01-019781665494182https://scholars.lib.ntu.edu.tw/handle/123456789/641737This paper introduces a 1-bit circularly polarized antenna designed specifically for Ku-band LEO satellite communications. The antenna exhibits a wide bandwidth, spanning from 10.7 to 14.5 GHz, and achieves a switchable radiation phase by manipulating the on-off states of PIN Diodes. With its broadband characteristics, the numerical simulation demonstrates a -10dB reflection coefficient bandwidth of 10.68 to 14.67 GHz. Moreover, the 2x2 array antenna delivers a gain exceeding 8 dBi at 11.7 GHz and 9 dBi at 14 GHz, respectively.Broadband | circular polarization | LEOconference paper10.1109/APMC57107.2023.104398172-s2.0-85186718218https://api.elsevier.com/content/abstract/scopus_id/85186718218