Tunable balanced BPF with wide tuning range and high selectivity

DOI Web Site 被引用文献1件 参考文献24件
  • Wang Xian
    Department of Electromagnetic Wave and Antenna Propagation, National Digital Switching System Engineering and Technological Research Center
  • Zhang Dewei
    Department of Electromagnetic Wave and Antenna Propagation, National Digital Switching System Engineering and Technological Research Center
  • Liu Qing
    Department of Electromagnetic Wave and Antenna Propagation, National Digital Switching System Engineering and Technological Research Center
  • Lv Dalong
    Department of Electromagnetic Wave and Antenna Propagation, National Digital Switching System Engineering and Technological Research Center
  • Zhang Yi
    Department of Electromagnetic Wave and Antenna Propagation, National Digital Switching System Engineering and Technological Research Center
  • Wang Shuxing
    Department of Electromagnetic Wave and Antenna Propagation, National Digital Switching System Engineering and Technological Research Center

抄録

<p>A highly-selective tunable balanced bandpass filter (BPF) with wide tuning range of center frequency is presented. The balanced BPF is designed by using compact varactor-tuned parallel coupled-line resonators with the direct-feed structure. It can realize a wide tuning range with an almost constant fractional bandwidth (CFBW). Three differential-mode (DM) transmission zeros (TZs) close to the tunable passband are obtained by mixed electromagnetic coupling and frequency-variant source-load (S-L) coupling. Meanwhile, the three TZs can almost keep the same relative location of passband to achieve continuous high selectivity and good out-of-band rejection over the whole frequency-tuning range. For verification, a tunable 1.02–3.25 GHz balanced BPF with three self-adaptive TZs is designed, fabricated and measured. And experimental and simulated results are in good agreement.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 17 (1), 20190682-20190682, 2020

    一般社団法人 電子情報通信学会

被引用文献 (1)*注記

もっと見る

参考文献 (24)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ