A novel 6.5-13.5GHz 6-bit digital phase shifter with ultra low RMS phase error in 0.25-µm GaAs p-HEMT technology

DOI Web Site 参考文献33件
  • Liang Quanzhen
    Institute of Microelectronics, Chinese Academy of Sciences University of Chinese Academy of Sciences
  • Zhang Yuying
    Institute of Microelectronics, Chinese Academy of Sciences Beijing Key Laboratory of New Generation Communication RF Technology
  • Wang Kuisong
    Institute of Microelectronics, Chinese Academy of Sciences Beijing Key Laboratory of New Generation Communication RF Technology
  • Yan Yuepeng
    Institute of Microelectronics, Chinese Academy of Sciences Beijing Key Laboratory of New Generation Communication RF Technology
  • Liang Xiaoxin
    Institute of Microelectronics, Chinese Academy of Sciences Beijing Key Laboratory of New Generation Communication RF Technology

抄録

<p>This letter presents a broadband, high-precision bidirectional passive 6-bit digital phase shifter (DPS) designed for phased array systems. We propose three novel structures: the dual modified magnetically coupled all pass network (DMMCAPN) for small phase shifts, the modified high pass network/modified magnetically coupled all pass network (MHPN/MMCAPN) for medium phase shifts, and the Lange/modified transmission line network (L/MTLN) for large phase shifts. It shows a phase shift range of 360° with a step of 5.625°. Measurements in the 6.5-13.5GHz range indicate that the root-mean-square (RMS) phase and amplitude errors for the 64 states are within 1.8° and 0.75dB, respectively. Additionally, the average insertion loss is (-12.2±0.5)dB and the input 1dB compression point (IP1dB) is 29dBm at IF 10GHz. To the best of our knowledge, this letter presents an exceptionally high degree of phase shift accuracy across the broad bandwidth, outperforming other GaAs passive digital phase shifters. Furthermore, it showcases superior linearity when compared to silicon-based passive digital phase shifters.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 21 (9), 20240143-20240143, 2024-05-10

    一般社団法人 電子情報通信学会

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