Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure

doi:10.1088/1674-1056/26/2/024102

中国物理B ›› 2017, Vol. 26 ›› Issue (2): 24102-024102.doi: 10.1088/1674-1056/26/2/024102

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure

Guo-Cheng Wu(吴国成), Guang-Ming Wang(王光明), Xiao-Long Fu(付孝龙), Jian-Gang Liang(梁建刚), Wei-Xiong Bai(白渭雄)

Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China

收稿日期:2016-06-20 修回日期:2016-10-14 出版日期:2017-02-05 发布日期:2017-02-05
通讯作者: Guo-Cheng Wu E-mail:wgc805735557@163.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 61372034).

Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure

Guo-Cheng Wu(吴国成), Guang-Ming Wang(王光明), Xiao-Long Fu(付孝龙), Jian-Gang Liang(梁建刚), Wei-Xiong Bai(白渭雄)

Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China

Received:2016-06-20 Revised:2016-10-14 Online:2017-02-05 Published:2017-02-05
Contact: Guo-Cheng Wu E-mail:wgc805735557@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 61372034).

摘要/Abstract

摘要： In this paper, we first propose a metamaterial structure by etching the same two interdigital fingers on the upper ground of quarter mode substrate integrated waveguide (QMSIW). The simulated results show that the proposed QMSIW-based metamaterial has a continuous phase constant changing from negative to positive values within its passband. A periodic leaky-wave antenna (LWA), which consists of 11 QMSIW-based metamaterial unit cells, is designed, fabricated, and measured. The measured results show that the fabricated antenna achieves a continuous beam scanning property from backward -43° to forward +32° over an operating frequencyrange of 8.9 GHz-11.8 GHz with return loss better than 10 dB. The measured antenna gain keeps consistent with the variation of less than 2 dB over the operating frequency range with a maximum gain of 12 dB. Besides, the measured and simulated results are in good agreement with each other, indicating the significance and effectiveness of this method.

关键词: metamaterial leaky-wave antenna, quarter mode substrate integrated waveguide (QMSIW), continuous beam scanning property

Abstract: In this paper, we first propose a metamaterial structure by etching the same two interdigital fingers on the upper ground of quarter mode substrate integrated waveguide (QMSIW). The simulated results show that the proposed QMSIW-based metamaterial has a continuous phase constant changing from negative to positive values within its passband. A periodic leaky-wave antenna (LWA), which consists of 11 QMSIW-based metamaterial unit cells, is designed, fabricated, and measured. The measured results show that the fabricated antenna achieves a continuous beam scanning property from backward -43° to forward +32° over an operating frequencyrange of 8.9 GHz-11.8 GHz with return loss better than 10 dB. The measured antenna gain keeps consistent with the variation of less than 2 dB over the operating frequency range with a maximum gain of 12 dB. Besides, the measured and simulated results are in good agreement with each other, indicating the significance and effectiveness of this method.

Key words: metamaterial leaky-wave antenna, quarter mode substrate integrated waveguide (QMSIW), continuous beam scanning property

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

41.20.Jb

73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

吴国成, 王光明, 付孝龙, 梁建刚, 白渭雄. Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure[J]. 中国物理B, 2017, 26(2): 24102-024102.

Guo-Cheng Wu(吴国成), Guang-Ming Wang(王光明), Xiao-Long Fu(付孝龙), Jian-Gang Liang(梁建刚), Wei-Xiong Bai(白渭雄). Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure[J]. Chin. Phys. B, 2017, 26(2): 24102-024102.

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Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure

Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure

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