A Polarization-Independent Wideband Switchable Rasorber With High Roll-Off Characteristics Utilizing Third-Order Switchable FSS

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-09 DOI:10.1109/LAWP.2024.3514899

Yanjie Wu;Haoquan Hu;Jing Tian;Shiwen Lei;Bixiao Jiang;Bo Chen;Hao Jiang;Quan Xue

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Abstract

In recent years, switchable frequency selective rasorbers (FSRs) have been extensively studied due to their in-band shielding ability. However, it is difficult to achieve dual-polarized switchable FSR with wide passband and excellent roll-off characteristics simultaneously. In this letter, a polarization-independent wideband switchable FSR with high roll-off characteristics is proposed. The FSR is composed of a three-layer architecture with a nonswitchable impedance layer, a switchable impedance layer and a switchable frequency selective surface (FSS). A switchable FSS with third-order response is utilized to achieve low profile, wideband transmission and high roll-off characteristics. Meanwhile, a wide low reflection band is achieved with the assistance of two impedance layers. Under each polarization, the device can be independently switched between rasorber and absorber modes. Finally, a prototype is manufactured and measured to demonstrate the viability of the proposed design. Compared with the existing counterparts, the proposed dual-polarized switchable FSR exhibits excellent performance in terms of wideband transmission, high roll-off characteristics and broadband absorption.

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基于三阶可切换FSS的高滚降特性的偏振无关宽带可切换反射器

近年来，可切换频率选择反射器（FSRs）由于其带内屏蔽能力得到了广泛的研究。然而，要同时实现具有宽通带和良好滚降特性的双极化可切换FSR是很困难的。本文提出了一种具有高滚降特性的极化无关宽带可切换FSR。FSR由不可切换阻抗层、可切换阻抗层和可切换频率选择表面（FSS）三层结构组成。采用具有三阶响应的可切换FSS实现低轮廓、宽带传输和高滚降特性。同时，在两个阻抗层的辅助下，实现了较宽的低反射带。在每一种极化下，器件都可以在吸收和吸收模式之间独立切换。最后，制造了一个原型并进行了测量，以证明所提出设计的可行性。与现有的双极化可切换FSR相比，所提出的双极化可切换FSR在宽带传输、高滚降特性和宽带吸收方面表现出优异的性能。

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

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.