A Low-Profile High-Performance Endfire Antenna Incorporating Parasitic Elements and Spoof Surface Plasmon Polaritons

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-09-25 DOI:10.1002/mop.70402

Wei Wang, Ruilong Song, Qiuyan Song, Juan Xu, Jianchao Wang

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Abstract

In this letter, a low-profile high-performance endfire antenna incorporating parasitic elements and spoof surface plasmon polaritons (SSPPs) is proposed. The single-layer printed circuit board is designed based on SSPPs by adding a set of fan-structured parasitic elements to increase the gain. The feed structure is in the form of a substrate-integrated waveguide (SIW), which confines the electromagnetic waves to radiate forward within a fixed range. In addition, a significant increase in operating bandwidth is achieved through the addition of a V-notch to the front end of the SIW. The SSPPs-based endfire antenna was fabricated and experimentally evaluated, demonstrating inherently superior endfire radiation characteristics. Measurement results reveal that the antenna achieves consistent endfire radiation patterns with a peak gain of 16.4 dBi and a radiation efficiency exceeding 90% across a broad operational bandwidth spanning 17.34 to 28.12 GHz. These performance metrics suggest that the proposed antenna design is highly suitable for deployment in advanced microwave communication systems, offering a promising solution for applications requiring high gain, efficiency, and wideband functionality.

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结合寄生元件和欺骗表面等离激元的低轮廓高性能末火天线

在这封信中，提出了一种结合寄生元件和欺骗表面等离子激元（SSPPs）的低姿态高性能端火天线。通过增加一组扇形结构的寄生元件来提高增益，设计了基于SSPPs的单层印刷电路板。馈电结构采用基板集成波导（SIW）的形式，将电磁波限制在固定的范围内向前辐射。此外，通过在SIW前端添加v型陷口，可以显著增加工作带宽。制作了基于sspps的端射天线，并对其进行了实验评估，结果表明该天线具有较好的端射特性。测量结果表明，该天线在17.34 ~ 28.12 GHz的宽工作带宽范围内实现了一致的端火辐射方向图，峰值增益为16.4 dBi，辐射效率超过90%。这些性能指标表明，所提出的天线设计非常适合部署在先进的微波通信系统中，为需要高增益、高效率和宽带功能的应用提供了一个有前途的解决方案。

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

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication