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A 2 × 2 array antenna with circular polarization and conical beam radiation

机译:具有圆极化和锥形束辐射的2×2阵列天线

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摘要

A circular disk patch antenna loaded with a hemi-circular slot is initially proposed for achieving circular polarization (CP). To exhibit broad CP bandwidth that can cover the WLAN 2.4 GHz operating band, the patch antenna is fed by an L-shaped probe. To further attain conical beam radiation with peak gain of ∼8 dBic at ±30 degrees theta angle (θ), a 2 × 2 array type is proposed in this study, in which four circular disk patch array elements are arranged in a sequentially rotated fashion via a corporate feed network. Here, desirable 3-dB axial ratio (AR) bandwidth and 10-dB impedance bandwidth of ∼5% and 21% were measured. © 2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:223–228, 2014.
机译:最初提出了一种带有半圆形缝隙的圆盘贴片天线,用于实现圆极化(CP)。为了展现可覆盖WLAN 2.4 GHz工作频带的宽CP带宽,贴片天线由L形探头供电。为了进一步获得在±30度θ角(θ)处具有〜8 dBic峰值增益的锥形束辐射,本研究提出了一种2×2阵列类型,其中四个圆盘贴片阵列元素以顺序旋转的方式排列通过公司供稿网络。在此,测得了理想的3 dB轴向比率(AR)带宽和10 dB的阻抗带宽,分别为5%和21%。 ©2013 Wiley Periodicals,Inc.国际J RF和微波CAE 24:223–228,2014年。

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