Polarization-Reconfigurable Enhanced Ellipse-Shaped Metasurfaces Antenna With Integrated Filtering Functions

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-11-19 DOI:10.1109/LAWP.2024.3502256

Long Li;Qingxiu Ma;Zhao Wu;Jiajun Liang

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引用次数: 0

Abstract

This letter proposes a tri-polarization reconfigurable diversity antenna with integrated filtering functions based on ellipse-shaped metasurfaces (MTS). The antenna consists of three layers: the feedline layer, the coupled aperture layer, and the MTS layer. To get a low-frequency radiation null, the complementary split ring resonators (CSRRs) are loaded on the coupled aperture layer, utilizing resonant characteristics. Furthermore, a nonradiation characteristics mode of the MTS is excited for a high-frequency radiation null. Thus, a filtering function of the proposed antenna is provided. Besides, there are three coupled slots on the aperture layer. Six sets of PIN diodes are inserted on the microstrip and coupled aperture. Through controlling the PIN diode, the polarization reconfigurability is obtained by choosing different coupled slots and changing the associated electric field vector. Eventually, the proposed antenna could switch between linear polarization (LP), left-hand circular polarization (LHCP), and right-hand circular polarization. In the experiment, the proposed antenna shows a wide −10 dB impedance bandwidth (IMBW) of 29% and 29.5% for LP and CP modes. While operating in CP modes, the antenna has a wide measured 3 dB axial ratio (AR) bandwidth of 29%. Meanwhile, the out-of-band radiation suppression level in low frequency is more than 30 dB and 20 dB for LP and CP modes, respectively.

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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.