A wideband transmitarray using triple-layer elements with reduced profile

DOI Web Site 被引用文献1件 参考文献24件
  • Lv Xiuzhu
    College of Electronic Information, Engineering Inner Mongolia University
  • Han Zhihua
    College of Electronic Information, Engineering Inner Mongolia University
  • Jian Xin
    College of Electronic Information, Engineering Inner Mongolia University
  • Zhang Yongliang
    College of Electronic Information, Engineering Inner Mongolia University College of Transportation, Inner Mongolia University
  • Chen Qiang
    Department of Communications Engineering Graduate, School of Engineering, Tohoku University

抄録

<p>A triple-layer wideband transmitarray (TA) which works at 18.5 GHz with reduced profile is presented in this paper. The unit cell composed of three metal layers, each layer is etched on the corresponding dielectric substrate. The top layer consists of double square rings, the same as the bottom layer. The intermediate layer consists of a Jerusalem cross slot. The thickness of designed unit cell is 0.15λ, where λ is the wavelength in free-space. A large frequency range is implemented by parallel sets of phase curves generated by proposed unit cell. The magnitude of transmission coefficient is less than 1 dB and the phase shift range exceeds 360 degree across the entire frequency range. We design, fabricate and measure a TA operating at 18.5 GHz to show the validation of this paper. Through the measurement, we can obtain that the 1-dB gain bandwidth is 14.8% (17.5–20.3 GHz), and maximum gain is 22.5 dB at 18.5 GHz. The proposed transmitarray’s maximum aperture efficiency is 46%.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 17 (1), 20190678-20190678, 2020

    一般社団法人 電子情報通信学会

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