Abstract
AbstractWe proposed a broadband e‐shaped circularly polarized (CP) patch antenna with single‐point feed, and the feed point is located at the center of the antenna. The structure of this new antenna includes a ground plate and an e‐shaped patch placed on a substrate. The measured impedance bandwidth of the proposed antenna is approximately 17.89% (3.47–4.15 GHz), and the measured 3‐dB axial ratio bandwidth (ARBW) is about 9.47% (3.63–3.99 GHz). The antenna can achieve the gain of 8.4 to 8.7 dBi within the ARBW. And at the center frequency (3.8 GHz), right‐hand CP to left‐hand CP isolation of the antenna can reach −33 dB.
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