@inproceedings{8eee61dee6e44b84adcf45ef75f557d1,
title = "A Compact Dual-Circularly Polarized Patch Antenna With Wide Axial Ratio Beamwidth Based on Square-Ring Coupled Feeding",
abstract = "A compact dual-circularly polarized (CP) patch antenna with wide axial ratio beamwidth (ARBW) based on square-ring coupled feeding is proposed. A meandered patch and a shorting wall are introduced for size reduction and ARBW enhancement. A square ring structure etched below the patch is used to feed through capacitive coupling. A quadrature hybrid, integrated into the feed network, introduces a 90° phase difference between the outputs of the through and coupled arms, facilitating the emission of CP radiation. The ultimate size of the proposed antenna are 0.38λ0 {\texttimes} 0.38λ0 {\texttimes} 0.05λ0. The simulated outcomes demonstrate the -10 dB impedance bandwidth (IBW) over 30\% and the 3 dB axial ratio (AR) bandwidth exceeding 20\%. The maximum ARBW reaches 227° in two orthogonal principal planes at 2.44 GHz, consistent for both CP states.",
keywords = "compact size, coupled feeding, dual-circularly polarized, meandered patch, square ring, wide axial ratio beamwidth (ARBW)",
author = "Mengzhan Li and Lili Fang and Lukui Jin and Xiue Bao",
note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 11th IEEE MTT-S International Wireless Symposium, IWS 2024 ; Conference date: 16-05-2024 Through 19-05-2024",
year = "2024",
doi = "10.1109/IWS61525.2024.10713812",
language = "English",
series = "2024 IEEE MTT-S International Wireless Symposium, IWS 2024 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2024 IEEE MTT-S International Wireless Symposium, IWS 2024 - Proceedings",
address = "United States",
}