Full-angle beam scanning leaky-wave antenna array based on spoof surface plasmon polaritons

IF 1.1 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Microwaves Antennas & Propagation Pub Date : 2024-09-12 DOI:10.1049/mia2.12512

Jun Wang, Yuqi Yao, Xianglin Kong, Ruofeng Xu, Lei Zhao

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Abstract

A design scheme of high-gain and full-angle frequency beam scanning leaky wave antenna (LWA) and array is proposed based on spoof surface plasmon polaritons (SSPPs) slow-wave transmission line (TL) for radar field applications. A row of complementary split ring resonators is periodically etched near the SSPPs TL, which can transform the fundamental mode of SSPPs TL to the fast-wave region and radiate electromagnetic waves, realising the full-angle frequency beam scanning performance. A 1-to-2 microwave power divider is designed to feed the LWA array and realised good impedance matching covers 5.8–9.4 GHz bandwidth. Simulation and experimental results indicate that the designed LWA array can realise full-angle beam scanning range of 180° (−90° to 90°) with a scanning rate of 3.83°/% performance. The peak gain values of the designed LWA element and array are 11.4dBi and 14.6 dBi, respectively, and the radiation efficiency of LWA array is maintained more than 80% within the operation frequency band.

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基于欺骗表面等离子激元极化的全角波束扫描漏波天线阵列

提出了一种基于欺骗表面等离子激元（SSPPs）慢波传输线的高增益全角频率波束扫描漏波天线和阵列的设计方案，用于雷达现场应用。在SSPPs TL附近周期性蚀刻一排互补的劈裂环谐振器，将SSPPs TL的基模转变为快波区并辐射电磁波，实现全角度频率波束扫描性能。设计了1对2的微波功率分配器馈送LWA阵列，在5.8 ~ 9.4 GHz带宽范围内实现了良好的阻抗匹配。仿真和实验结果表明，所设计的LWA阵列可以实现180°（−90°~ 90°）的全角波束扫描，扫描率为3.83°/%。设计的LWA元件和阵列的峰值增益值分别为11.4dBi和14.6 dBi，在工作频段内LWA阵列的辐射效率保持在80%以上。

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来源期刊

Iet Microwaves Antennas & Propagation 工程技术-电信学

CiteScore

4.30

自引率

5.90%

发文量

109

审稿时长

7 months

期刊介绍： Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf