A Simultaneous Study on Wire-Loop, Plate-Loop, and Plate Antennas for Wideband Circular Polarization

Kazuhide Hirose, Mitsuki Hirose, Hisamatsu Nakano

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate three square-shaped antennas to increase the bandwidth of circular polarization. Each antenna has two adjacent corners excited with the same amplitudes and a phase difference of 90° using a branched feedline vertical to the ground plane. We evaluate the 3 dB axial ratio bandwidth as a function of the loop-arm width using the moment method. It is found that the axial ratio bandwidth reaches 38% for an arm width of 0.04 wavelengths, wider than that of a wire-loop antenna by a factor of three. The simulated results are verified by experimental ones.

Original languageEnglish
Article number2024
Pages (from-to)1-7
JournalInternational Journal of Antennas and Propagation
Volume2024
DOIs
Publication statusPublished - 2024 May 11

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