Highly-selective, closely-spaced, tri-band bandpass three-dimensional frequency selective surface

DOI Web Site 被引用文献1件
  • Yu Zhengyong
    School of Computer and Communication Engineering, Huai’an Vocational College of Information Technology School of Physics and Technology, Nanjing Normal University
  • Tang Wanchun
    School of Physics and Technology, Nanjing Normal University
  • Li Yuehua
    School of Electronic and Optical Engineering, Nanjing University of Science and Technology
  • Zhu Jianping
    School of Electronic and Optical Engineering, Nanjing University of Science and Technology

抄録

<p>A highly-selective, closely-spaced, tri-band bandpass three-dimensional frequency selective surface (3D FSS) is proposed based on the topology of the microwave filter in this paper. The unit cell of the proposed 3D FSS is constructed by combining an air-filled square waveguide and a cuboid dielectric resonator. Both top and bottom layers of the dielectric resonator consist of double square loops, while the middle layer contains an embedded square loop. Due to its inner electromagnetic coupling in the unit cell, multiple transmission zeros/poles are introduced for obtaining high frequency selectivity, two second-order passbands, and wide out-of-band rejection. Concentric square loops with very close sizes are designed to realize small band ratios. In order to understand the working principle of the proposed 3D FSS, the surface current distributions at the frequencies of transmission poles are analyzed. Finally, an FSS prototype is fabricated and measured. The measurement results show a stable response under the incident angles up to 60° for both TE and TM polarizations is realized. Besides, the proposed 3D FSS has a relatively compact unit cell size.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 17 (13), 20200153-20200153, 2020-07-10

    一般社団法人 電子情報通信学会

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