首页|Wideband Wide-angle SSPP-fed Leaky-wave Antenna with Low Side-lobe Levels

Wideband Wide-angle SSPP-fed Leaky-wave Antenna with Low Side-lobe Levels

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In this paper, a broadband wide-angle leakywaveantenna (LWA) with low sidelobe levels (SLL)is proposed. The antenna is composed of two parts:a broadband wide-angle scanning spoof surface plasmonpolariton (SSPP)-fed circular patch antenna arrayand electromagnetic bandgap (EBG) structures tiled onboth sides of the antenna array. By controlling the couplingdistances between the circular radiation patchesand SSPP feeding line, the attenuation constant alongthe radiation aperture is specially designed in a taperedway to achieve low SLL. EBG structures are adopted toreduce the back-lobe levels. Measured results show thatthe scanning angle of the proposed antenna reaches 82◦.The measured realized gains are from 8 to 15.7 dBi inthe operating frequency range from 8 to 12 GHz, witha maximum SLL less than -15 dB. The wide-band wideangleSSPP-fed LWA with low SLL can find applicationsin radar detection and microwave imaging.

Electromagnetic bandgap (EBG)leakywave antenna (LWA)low side-lobe levels (SLL)surface plasmon polaritons (SPP)wide-angle

Yanzhen Shi、Zhibo Fan、Cong Chen、Yongjin Zhou

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Key Laboratory of Specialty Fiber Optics and Optical Access NetworksSchool of Communication and Information Engineering, Shanghai University, Shanghai 200444, China

Electronic Information SchoolWuhan University, Wuhan 430072, China

Key Laboratory of Specialty Fiber Optics and Optical Access NetworksSchool of Communication and Information Engineering, Shanghai University, Shanghai 200444, China||Shaanxi Key Laboratory of Artificially-Structured Functional Materials and DevicesAir Force Engineering University, Xi’an 710051, China

2024

Applied Computational Electromagnetics Society journal

Applied Computational Electromagnetics Society journal

EISCI
ISSN:1054-4887
年,卷(期):2024.39(10)
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