volume | PIER Journals

Abstract

A broadband circularly polarized planar antenna based on a quarter-mode substrate integrated cylindrical cavity subarray is presented in this communication. It is composed of two layers: a quarter-mode substrate integrated cylindrical Cavity (QMSICC) subarray and the feeding network comprised of three Wilkinson power dividers. The measured 10-dB return loss and 3-dB axial ratio bandwidths at the center frequency 5.2 GHz are 40% and 25.5%, respectively. The gain measured for right-hand circular polarization (RHCP) is 4.6 dBi at 5.2 GHz. And it will be used in WLAN operating at 5.2 GHz.

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Dr. Zhangjing Wang

Dr. Yahua Ran

Dr. Yang Peng

Dr. Yang Li

Dr. Yun-Qing Sun