90° and 180° phase shifter using an arbitrary phase-difference coupled-line structure

  • Dong Yezi
    School of Electrical and Information Engineering, Tianjin University
  • Mao Luhong
    School of Electrical and Information Engineering, Tianjin University
  • Song Qiwei
    Institute of Automation, Chinese Academy of Sciences
  • Xie Sheng
    School of Microelectronics, Tianjin University

抄録

<p>In this paper, an arbitrary phase-difference structure using short-circuit stubs and coupled-line with weak coupling is presented. Compared with conventional coupled-line phase shifters, the proposed coupled-line configuration covers a wide phase range over a broad band. The simulation exhibits a phase range from 15° to 180°. To verified the configuration, 90° and 180° phase shifters are fabricated and measured. According to the measurement results, both 90° and 180° phase shifters achieve bandwidths over 60% with in-band performance of return loss greater than 10 dB, insertion loss less than 1 dB, and phase deviation less than ±5°.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 14 (22), 20170936-20170936, 2017

    一般社団法人 電子情報通信学会

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