Low‐spurious‐response coaxial‐line BPF with saucer‐loaded stepped‐impedance resonators designed with mode‐matching technique | Zendy

Uchida Hiromitsu | Zendy; Ohwada Tetsu | Zendy; Yoneda Naofumi | Zendy; Takeuchi Norio | Zendy; Miyazaki Moriyasu | Zendy; Konishi Yoshihiko | Zendy

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Low‐spurious‐response coaxial‐line BPF with saucer‐loaded stepped‐impedance resonators designed with mode‐matching technique

Author(s) -

Uchida Hiromitsu,

Ohwada Tetsu,

Yoneda Naofumi,

Takeuchi Norio,

Miyazaki Moriyasu,

Konishi Yoshihiko

Publication year - 2004

Publication title -

international journal of rf and microwave computer‐aided engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 39

eISSN - 1099-047X

pISSN - 1096-4290

DOI - 10.1002/mmce.20006

Subject(s) - band pass filter , resonator , spurious relationship , coaxial , center frequency , electrical impedance , frequency response , acoustics , microwave , impedance matching , classification of discontinuities , physics , frequency band , electronic engineering , materials science , electrical engineering , engineering , computer science , optics , bandwidth (computing) , telecommunications , mathematics , mathematical analysis , machine learning

A novel stepped‐impedance resonator with a thin metal saucer is proposed in order to reduce spurious‐response levels in a coaxial‐line bandpass filter (BPF). In designing the BPF, the mode‐matching technique is employed for fast and accurate calculation of coaxial‐line discontinuities. A prototype BPF obtains a spurious‐response level of less than −55 dB in the frequency band from 2 f 0 to 9 f 0 , where f 0 is the pass‐band center frequency. © 2004 Wiley Periodicals, Inc. Int J RF and Microwave CAE 14: 227–235, 2004.

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