A Wide-Angle Scanning Phased Array with Low Gain Variation Using Novel Feeding Scheme

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2021-11-15 DOI:10.1109/IMWS-AMP53428.2021.9643951

C. Shao, H. Chu, Xiao-hua Zhu

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Abstract

A wide-angle scanning phased array with low gain variation is proposed. In order to widen the scanning range for the phased array and keep the gain flatness, a novel feeding scheme is proposed in this design. A pair of radiators has been attached to a two-way power divider by two identical reconfigurable phase shifters respectively. By utilizing the reconfigurable phase shifters, each antenna unit has three reconfigurable modes. Each mode can matched to different scanning range to realize low gain variation. As a result, wide-angle scanning capability and low gain fluctuation can be realized at the same time. In order verify the proposed concept, a phased array constructed by four antenna units has been designed and simulated. The simulated results validate the proposed design exhibiting a good performance of wide-angle scanning characteristic and low gain fluctuation. This design can be also applicable in antenna in package.

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采用新型馈电方案的低增益变化广角扫描相控阵

提出了一种低增益变化的广角扫描相控阵。为了扩大相控阵的扫描范围并保持增益的平坦性，本设计提出了一种新的馈电方案。一对散热器分别通过两个相同的可重构移相器连接到一个双向功率分配器上。通过利用可重构移相器，每个天线单元具有三种可重构模式。每种模式可以匹配不同的扫描范围，实现低增益变化。因此，可以同时实现广角扫描能力和低增益波动。为了验证所提出的概念，设计并仿真了一个由四个天线单元组成的相控阵。仿真结果验证了该设计具有良好的广角扫描特性和低增益波动。这种设计也适用于天线封装。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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