中国物理B ›› 2022, Vol. 31 ›› Issue (10): 104101-104101.doi: 10.1088/1674-1056/ac5881
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Huan Jiang(蒋欢)1,†, Xiang-Yu Cao(曹祥玉)1,2,‡, Tao Liu(刘涛)1, Liaori Jidi(吉地辽日)1, and Sijia Li(李思佳)1,2
Huan Jiang(蒋欢)1,†, Xiang-Yu Cao(曹祥玉)1,2,‡, Tao Liu(刘涛)1, Liaori Jidi(吉地辽日)1, and Sijia Li(李思佳)1,2
摘要: We propose a single-beam leaky-wave antenna (LWA) with a wide-scanning angle and a high-scanning rate based on spoof surface plasmon polariton (SSPP) in this paper. The SSPP transmission line (TL) is etched with periodically arranged circular patches, which converts the slow-wave mode into the fast-wave region for radiation. The proposed LWA is designed, fabricated, and tested. The simulated results imply that the proposed LWA not only achieves a high radiation efficiency of about 81.4%, and a high scanning rate of 12.12, but also has a large scanning angle of 176° over a narrow operation bandwidth of 8.3—9.6 GHz (for |S11|<-10 dB). In addition, the simulated average gain of the LWA can reach as high as 10.9 dBi. The measured scanning angle range is 175° in the operation band of 8.2—9.6 GHz, and the measured average gain is 10.6 dBi. The experimental results are consistent with the simulation, validating its performance. An antenna with high radiation efficiency, wide scanning angle range, and high scanning rate has great potential for application in radar and wireless communication systems.
中图分类号: (Electromagnetic wave propagation; radiowave propagation)