A Design Proposal Using Coherently Radiating Periodic Structures (CORPSs) for 2-D Phased Arrays of Limited Scanning

Q1 Mathematics Applied Sciences Pub Date : 2024-09-18 DOI:10.3390/app14188409

Gilberto Calvillo, Marco A. Panduro, Elizvan Juarez, Alberto Reyna, Carlos del Rio

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Abstract

New configurations of 2-D phased arrays are proposed in this paper for reducing the number of phase shifters. This design methodology is based on the use of a novel coherently radiating periodic structures (CORPSs) block for 2-D phased arrays. Two new antenna systems for 2-D phased arrays are studied and analyzed utilizing the CORPSs blocks of four inputs and nine outputs. These CORPSs feeding blocks are applied in a smart way to feed the planar antenna arrays by generating the required phase plane and reducing the number of control ports. Interesting results are provided based on the experimental measurements and full-wave simulations. These results illustrate a great reduction of the active devices (phase shifters), providing a good design compromise in terms of the scanning range and side lobe level performance. Furthermore, the provided results illustrate a maximum reduction capability in the number of phase shifters of 81%, considering a scanning range of ±30° in azimuth and ±30° in elevation. A raised cosine distribution is applied to reach side lobe levels of −19 dB for ±18° and −17 dB for ±30° in elevation. These benefits could be of interest to designers of phased antenna systems.

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利用相干辐射周期结构 (CORPS) 进行有限扫描的二维相控阵的设计建议

本文提出了二维相控阵的新配置，以减少移相器的数量。这种设计方法基于为二维相控阵使用的新型相干辐射周期结构（CORPSs）块。利用四输入九输出的 CORPSs 模块，研究和分析了两个用于二维相控阵的新型天线系统。这些 CORPSs 馈电模块通过生成所需的相位平面和减少控制端口数量，以智能方式为平面天线阵列馈电。实验测量和全波仿真提供了有趣的结果。这些结果表明，有源器件（移相器）的数量大大减少，在扫描范围和边波级性能方面提供了良好的设计折衷。此外，考虑到扫描范围为方位角±30°和仰角±30°，所提供的结果表明移相器的数量最大可减少 81%。采用升高余弦分布，在仰角±18°和±30°的情况下，侧叶水平分别为-19 dB和-17 dB。相位天线系统的设计人员可能会对这些优点感兴趣。

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

Applied Sciences Mathematics-Applied Mathematics

CiteScore

6.40

自引率

0.00%

发文量

审稿时长

11 weeks

期刊介绍： APPS is an international journal. APPS covers a wide spectrum of pure and applied mathematics in science and technology, promoting especially papers presented at Carpato-Balkan meetings. The Editorial Board of APPS takes a very active role in selecting and refereeing papers, ensuring the best quality of contemporary mathematics and its applications. APPS is abstracted in Zentralblatt für Mathematik. The APPS journal uses Double blind peer review.