Novel OAM Antenna Based on Circular SIW Resonant Cavity

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

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-11-22 DOI:10.1109/LAWP.2024.3505420

Xi Wang Dai;Yang Hui Fu;Ze Li;Jianzhong Chen;Yuan Wei;Wei Jun Wu;Hui Hong

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引用次数: 0

Abstract

In a communication system, orbital angular momentum (OAM) serves as a means for multichannel transmission, enhancing both transmission capacity and communication speed. A novel approach by integrating eight “L”-shaped slots as disturbance elements is proposed in this paper. The circular arrangement induces a phase difference across the antenna's surface, effectively replacing the need for a phase-controlled array. Each disturbance element functions akin to an array element, generating continuous phase-differing electromagnetic waves at an azimuthal angle. The antenna is designed with a single port, enabling the formation of the l = −1 mode, thereby significantly simplifying the OAM generation device. By leveraging a substrate integrated waveguide (SIW) the antenna's footprint and cost are substantially reduced. Within the 22.7 GHz to 25.5 GHz frequency band, the antenna exhibits remarkable performance metrics: the modal purity of the l = −1 mode can reach over 95%, with a gain of over 8.2 dBi and a null depth of less than 40 dB. Additionally, it features a low profile, low cost, and high purity across a wide bandwidth, providing an ideal choice for wireless communication and radar technology.

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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.