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Broadband circularly polarized Fabry-Perot antenna utilizing Archimedean spiral radiator and multi-layer partially reflecting Surface

Authors: 

Huy Hung Tran, Tuan Tu Le, Cong Danh Bui, Truong Khang Nguyen

Source title: 
International Journal of RF and Microwave Computer-Aided Engineering, 29(3): e21647, 2018 (ISI)
Academic year of acceptance: 
2018-2019
Abstract: 

This article presents a method to design broadband circularly polarized (CP) Fabry‐Perot Resonator (FPR) antenna. The proposed antenna is based on multi‐layer thin dielectric slabs arranged in close proximity as a partially reflecting surface (PRS) and an Archimedean spiral as a CP radiating source. Experimental results show a broadband operation from 6 to 13 GHz, in which the reflection coefficient is less than −10 dB and the axial ratio (AR) is lower than 3 dB. In addition, good radiation patterns and high broadside gain of better than 10.8 dBic are achieved over the operating bandwidth. The proposed antenna can be used for C‐ and X‐band satellite communications.