Spoof surface plasmon polaritons excited leaky-wave antenna with continuous scanning range from endfire to forward

doi:10.1088/1674-1056/ab9c00

Abstract A novel leaky-wave antenna (LWA) utilizing spoof surface plasmon polaritons (SSPPs) excitation is proposed with continuous scanning range from endfire to forward. The designed transmission line unit supports two SSPPS modes, of which the 2nd order mode is applied in the design. A novel strategy has been devised to excite the spatial radiation of the -1st order harmonics by arranging periodic counter changed sinusoidal structures on both sides of the SSPPs transmission line. Both full-wave simulation and measurement results show that the proposed LWA presents wide scanning angle from endfire to forward. In the frequency range from 4 GHz to 10 GHz, LWAs achieve scanning from 90° to +20°, covering the entire backward quadrant continuously.

Keywords: leaky-wave antenna spoof surface plasmon polaritons wide scanning-angle

Received: 23 May 2020
Revised: 04 June 2020
Accepted manuscript online: 12 June 2020

PACS:	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	84.40.-x	(Radiowave and microwave (including millimeter wave) technology)
	84.40.Ba	(Antennas: theory, components and accessories)

Corresponding Authors: Tao Zhong
E-mail: ztbull@126.com

Cite this article:

Tao Zhong(钟涛), Hou Zhang(张厚) Spoof surface plasmon polaritons excited leaky-wave antenna with continuous scanning range from endfire to forward 2020 Chin. Phys. B 29 094101

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Spoof surface plasmon polaritons excited leaky-wave antenna with continuous scanning range from endfire to forward

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