用于极化分集应用的可重构介质谐振器天线

Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014) Pub Date : 2014-12-01 DOI:10.1109/MMS.2014.7088783

S. Dhar, S. Sankaralingam, B. Gupta, D. R. Poddar, R. Ghatak

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引用次数: 3

摘要

提出了一种圆极化矩形介质谐振器天线。圆极化是通过引入一个交叉槽来产生两个近正交的、振幅相似、相位差为900的简并模来实现的。四个引脚二极管被放置在两个偏振状态之间切换，即右手圆偏振(RHCP)和左手圆偏振(LHCP)。在LHCP和RHCP情况下，天线的测量阻抗带宽分别为26.3%和28.2%。该天线的辐射增益为4.21 dB，在整个频段内具有可接受的增益，其轴比带宽为辐射。

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A reconfigurable dielectric resonator antenna for polarization diversity applications

A circularly polarized rectangular dielectric resonator antenna is presented. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. Four pin diodes are placed across the slots to switch between two polarization states namely, Right Hand Circular Polarization (RHCP) and Left Hand Circular Polarization (LHCP). The antenna yields a measured impedance bandwidth of 26.3% in case of LHCP and 28.2% in case of RHCP. The antenna radiates with a gain of 4.21 dB exhibiting an axial ratio bandwidth of radiate with an acceptable gain over the entire band.

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Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)

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