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Single-beam leaky-wave antenna with wide scanning angle and high scanning rate based on spoof surface plasmon polariton |
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 |
1. Information and Navigation College, Air Force Engineering University, Xi'an 710077, China; 2. Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices, Air Force Engineering University, Xi'an 710051, China |
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Abstract 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.
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Received: 06 January 2022
Revised: 09 February 2022
Accepted manuscript online:
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PACS:
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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52.35.Hr
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(Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 62171460 and 61801508), the Natural Science Basic Research Program of Shaanxi Province, China (Grant Nos. 2020JM-350, 20200108, 20210110, and 2020022), the Postdoctoral Innovative Talents Support Program of China (Grant Nos. BX20180375, 2019M653960, and 2021T140111). |
Corresponding Authors:
Huan Jiang, Xiang-Yu Cao
E-mail: huan_er_ya@163.com;xiangyucaokdy@163.com
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Cite this article:
Huan Jiang(蒋欢), Xiang-Yu Cao(曹祥玉), Tao Liu(刘涛), Liaori Jidi(吉地辽日), and Sijia Li(李思佳) Single-beam leaky-wave antenna with wide scanning angle and high scanning rate based on spoof surface plasmon polariton 2022 Chin. Phys. B 31 104101
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