In this article, designs of high gain polarization reconfigurable antenna arrays are proposed. A reconfigurable single-layer polarization converter working in transmission mode is integrated with 1 × 4 and 2 × 2 patch array antennas to arrive at the design of polarization reconfigurable antennas. The antenna arrays with the polarization converter radiate linearly or circularly polarized waves depending on the bias state of PIN diodes used in the converter. LP wave is obtained if the diodes are forward biased while the reverse bias state of the diodes provides a circularly polarized wave. The 1 × 4 patch array integrated with the polarization converter exhibits an operating bandwidth of 6.12% (14.5-15.4 GHz) with an average gain of 14.3 dB for the linear/circular polarization states. The operating bandwidth of 6.75% (14.3-15.3 GHz) and an average gain of 12.6 dB are obtained for the 2 × 2 patch array with the converter. The prototypes of the antenna arrays with the polarization converter are fabricated and their performance characteristics are measured. The simulated and measured results are found to be in close agreement.

中文翻译：

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使用极化可重构转换器的高增益极化可重构天线阵列

在本文中，提出了高增益极化可重构天线阵列的设计。将工作在传输模式的可重构单层极化转换器与1×4和2×2贴片阵列天线集成在一起，完成了极化可重构天线的设计。带有极化转换器的天线阵列根据转换器中使用的 PIN 二极管的偏置状态辐射线性或圆极化波。如果二极管正向偏置，则获得 LP 波，而二极管的反向偏置状态提供圆极化波。与偏振转换器集成的 1 × 4 贴片阵列的工作带宽为 6.12% (14.5-15.4 GHz)，线性/圆形偏振态的平均增益为 14.3 dB。工作带宽为 6.75% (14.3-15. 3 GHz) 和带有转换器的 2 × 2 贴片阵列获得 12.6 dB 的平均增益。制作了带有极化转换器的天线阵列的原型，并测量了它们的性能特性。发现模拟结果和测量结果非常一致。