中国物理B ›› 2017, Vol. 26 ›› Issue (12): 128501-128501.doi: 10.1088/1674-1056/26/12/128501

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Compact superconducting single-and dual-band filter design using multimode stepped-impedance resonator

Xiang Wang(王翔), Bin Wei(魏斌), Xi-Long Lu(陆喜龙), Xu-Bo Guo(郭旭波), Bi-Song Cao(曹必松)   

  1. 1. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China;
    2. The No. 14 research institute, China Electronic Technology Corporation(CETC), Nanjing 210013, China
  • 收稿日期:2017-07-20 修回日期:2017-08-18 出版日期:2017-12-05 发布日期:2017-12-05
  • 通讯作者: Bin Wei E-mail:weibin@mail.tsinghuaedu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61371009) and the Fund from the Chinese Ministry of Science and Technology (Grant No. 2014AA032703).

Compact superconducting single-and dual-band filter design using multimode stepped-impedance resonator

Xiang Wang(王翔)1, Bin Wei(魏斌)1, Xi-Long Lu(陆喜龙)2, Xu-Bo Guo(郭旭波)1, Bi-Song Cao(曹必松)1   

  1. 1. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China;
    2. The No. 14 research institute, China Electronic Technology Corporation(CETC), Nanjing 210013, China
  • Received:2017-07-20 Revised:2017-08-18 Online:2017-12-05 Published:2017-12-05
  • Contact: Bin Wei E-mail:weibin@mail.tsinghuaedu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61371009) and the Fund from the Chinese Ministry of Science and Technology (Grant No. 2014AA032703).

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摘要： This study presents two multimode stepped-impedance structures to design single-and dual-band filters. Transmission zeroes are introduced for the single-band filter by using dual-mode stepped-impedance resonators. The single-band filter with high selectivity is centered at 6.02 GHz and has a fractional bandwidth (FBW) of 25.6%. Four stubs (two low frequency and two high frequency ones) are connected to the rectangular patch in the center to construct a quadruple-mode resonator. The independent conditions of the center frequencies of the high and low bands of the resonator are analyzed. A dual-band filter, which operates at 1.53 GHz and 2.44 GHz with FWBs of 12.1% and 14.1%, respectively is designed. The single-and dual-band filters are both fabricated with double-sided YBCO films and they can be used in mobile and satellite communications.

关键词: high-temperature superconducting, bandpass filter, multimode stepped-impedance resonator, dual-band filter

Abstract: This study presents two multimode stepped-impedance structures to design single-and dual-band filters. Transmission zeroes are introduced for the single-band filter by using dual-mode stepped-impedance resonators. The single-band filter with high selectivity is centered at 6.02 GHz and has a fractional bandwidth (FBW) of 25.6%. Four stubs (two low frequency and two high frequency ones) are connected to the rectangular patch in the center to construct a quadruple-mode resonator. The independent conditions of the center frequencies of the high and low bands of the resonator are analyzed. A dual-band filter, which operates at 1.53 GHz and 2.44 GHz with FWBs of 12.1% and 14.1%, respectively is designed. The single-and dual-band filters are both fabricated with double-sided YBCO films and they can be used in mobile and satellite communications.

Key words: high-temperature superconducting, bandpass filter, multimode stepped-impedance resonator, dual-band filter

中图分类号:  (Superconducting devices)

  • 85.25.-j