中国物理B ›› 2020, Vol. 29 ›› Issue (9): 94101-094101.doi: 10.1088/1674-1056/ab9c00

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

Tao Zhong(钟涛), Hou Zhang(张厚)   

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • 收稿日期:2020-05-23 修回日期:2020-06-04 接受日期:2020-06-12 出版日期:2020-09-05 发布日期:2020-09-05
  • 通讯作者: Tao Zhong E-mail:ztbull@126.com

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

Tao Zhong(钟涛), Hou Zhang(张厚)   

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • Received:2020-05-23 Revised:2020-06-04 Accepted:2020-06-12 Online:2020-09-05 Published:2020-09-05
  • Contact: Tao Zhong E-mail:ztbull@126.com

摘要: 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.

关键词: leaky-wave antenna, spoof surface plasmon polaritons, wide scanning-angle

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.

Key words: leaky-wave antenna, spoof surface plasmon polaritons, wide scanning-angle

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
84.40.-x (Radiowave and microwave (including millimeter wave) technology) 84.40.Ba (Antennas: theory, components and accessories)