中国物理B ›› 2017, Vol. 26 ›› Issue (2): 24101-024101.doi: 10.1088/1674-1056/26/2/024101

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

Electromagnetic coupling reduction in dual-band microstrip antenna array using ultra-compact single-negative electric metamaterials for MIMO application

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

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • 收稿日期:2016-09-02 修回日期:2016-10-04 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).

Electromagnetic coupling reduction in dual-band microstrip antenna array using ultra-compact single-negative electric metamaterials for MIMO application

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

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • Received:2016-09-02 Revised:2016-10-04 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: In this paper, an ultra-compact single negative (SNG) electric waveguided metamaterial (WG-MTM) is first investigated and used to reduce the mutual coupling in E & H planes of a dual-band microstrip antenna array. The proposed SNG electric WG-MTM unit cell is designed by etching two different symmetrical spiral lines on the ground, and has two stopbands operating at 1.86 GHz and 2.40 GHz. The circuit size is very compact, which is only λ0/33.6×λ0/15.1 (where λ0 is the wavelength at 1.86 GHz in free space). Taking advantage of the dual-stopband property of the proposed SNG electric WG-MTM, a dual-band microstrip antenna array operating at 1.86 GHz and 2.40 GHz with very low mutual coupling is designed by embedding a cross shaped array of the proposed SNG electric WG-MTM. The measured and simulated results of the designed dual-band antenna array are in good agreement with each other, indicating that the mutual coupling of the fabricated dual-band antenna array realizes 9.8/11.1 dB reductions in the H plane, 8.5/7.9 dB reductions in the E plane at 1.86 GHz and 2.40 GHz, respectively. Besides, the distance of the antenna elements in the array is only 0.35λ0 (where λ0 is the wavelength at 1.86 GHz in free space). The proposed strategy is used for the first time to reduce the mutual coupling in E & H planes of the dual-band microstrip antenna array by using ultra-compact SNG electric WG-MTM.

关键词: waveguided metamaterial (WG-MTM), dual-band microstrip antenna array, mutual coupling reduction, ultra-compact circuit size

Abstract: In this paper, an ultra-compact single negative (SNG) electric waveguided metamaterial (WG-MTM) is first investigated and used to reduce the mutual coupling in E & H planes of a dual-band microstrip antenna array. The proposed SNG electric WG-MTM unit cell is designed by etching two different symmetrical spiral lines on the ground, and has two stopbands operating at 1.86 GHz and 2.40 GHz. The circuit size is very compact, which is only λ0/33.6×λ0/15.1 (where λ0 is the wavelength at 1.86 GHz in free space). Taking advantage of the dual-stopband property of the proposed SNG electric WG-MTM, a dual-band microstrip antenna array operating at 1.86 GHz and 2.40 GHz with very low mutual coupling is designed by embedding a cross shaped array of the proposed SNG electric WG-MTM. The measured and simulated results of the designed dual-band antenna array are in good agreement with each other, indicating that the mutual coupling of the fabricated dual-band antenna array realizes 9.8/11.1 dB reductions in the H plane, 8.5/7.9 dB reductions in the E plane at 1.86 GHz and 2.40 GHz, respectively. Besides, the distance of the antenna elements in the array is only 0.35λ0 (where λ0 is the wavelength at 1.86 GHz in free space). The proposed strategy is used for the first time to reduce the mutual coupling in E & H planes of the dual-band microstrip antenna array by using ultra-compact SNG electric WG-MTM.

Key words: waveguided metamaterial (WG-MTM), dual-band microstrip antenna array, mutual coupling reduction, ultra-compact circuit size

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))