Beam-steerable filtering patch antenna with wide-stopband suppression and stable radiation characteristics

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Aeu-International Journal of Electronics and Communications Pub Date : 2024-07-22 DOI:10.1016/j.aeue.2024.155451

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Abstract

A method of designing beam-steerable patch antennas with wide stopband suppression is proposed in this article. The wide stopband suppression characteristic is realized by designing suitable parallel coupled lines and open-circuited stubs. The beam steering characteristic is achieved by using a driven patch and two pairs of metal walls vertically placed on both sides of the driven antenna. By controlling the different states of the switching PIN diodes loaded between metal walls, the stable beam steering characteristic can be obtained over the entire operating bandwidth. An experimental antenna is designed and manufactured to validate the approach. The beam steering angles of the simulation and measurement results are ±30°. Moreover, in the three proposed operating states, the out-of-band suppression from 2.6 GHz to 10 GHz is more than 16 dB. The proposed antenna can achieve the characteristic of both wide stopband suppression and beam steering. In addition, the proposed antenna is able to maintain good impedance characteristics during beam steering and maintain stable beam over the entire operating bandwidth.

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具有宽带抑制和稳定辐射特性的波束可转向滤波贴片天线

本文提出了一种设计具有宽阻带抑制功能的波束引导贴片天线的方法。通过设计合适的平行耦合线和开路存根实现了宽阻带抑制特性。波束转向特性是通过使用一个从动贴片和垂直放置在从动天线两侧的两对金属壁来实现的。通过控制加载在金属壁之间的开关 PIN 二极管的不同状态，可以在整个工作带宽内获得稳定的波束转向特性。为验证该方法，设计并制造了一个实验天线。模拟和测量结果的波束转向角均为±30°。此外，在所提出的三种工作状态下，从 2.6 GHz 到 10 GHz 的带外抑制超过 16 dB。拟议的天线可以同时实现宽带抑制和波束转向的特性。此外，拟议的天线还能在波束转向过程中保持良好的阻抗特性，并在整个工作带宽内保持稳定的波束。

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.