宽带圆极化槽耦合超表面阵列天线

2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI:10.1109/APWC.2016.7738105

S. Ta, I. Park

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引用次数: 6

摘要

提出了一种基于连续相位网络馈电圆极化超表面天线的2 × 2元阵列。单个元件由微带馈线槽天线耦合到具有4 × 4截断角方形贴片的超表面组成。该阵列的总体尺寸为50 mm × 50 mm × 2.032 mm，阻抗带宽为7.5 ~ 11.0 GHz(37.84%)。轴比<时，CP辐射带宽为8.4 ~ 10.7 GHz (24.1%);3.此外，该天线产生左侧宽边CP辐射，峰值增益为13.7 dBic，在CP辐射带宽内辐射效率大于90%。

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Wideband circularly polarized slot coupled metasurface-based array antenna

We present a 2 × 2 element array based on circularly polarized (CP) metasurface-based antennas fed by a sequential phase network. The single element consists of a microstrip-line-fed slot antenna coupled to a metasurface having 4 × 4 truncated corner square patches. The proposed array, with an overall size of 50 mm × 50 mm × 2.032 mm, resulted in an impedance bandwidth of 7.5 - 11.0 GHz (37.84%) for |S11| <; -10 dB and a CP radiation bandwidth of 8.4 - 10.7 GHz (24.1%) for axial ratio <; 3. In addition, the antenna yielded a broadside left-hand CP radiation with a peak gain of 13.7 dBic and radiation efficiency greater than 90% within the CP radiation bandwidth.

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2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

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