Improvement of spurious responses of coupled-line BPFs using interdigital-type resonators

Ramesh K. Pokharel, Kouji Wada, Takanobu Ohno, Yoshihiro Aoki, Osamu Hashimoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This paper presents a method to suppress or eliminate the spurious responses of a BPF using interdigital-type resonators. The configurations presented employ interdigital-type resonators with one end grounded in order to realize improved BPF characteristics. The analysis shows that the configurations quite effectively suppress spurious responses up to five times the center frequency (5f0) and locate the attenuation poles in the stopband such that improved out-of-band characteristics can be realized.

Original languageEnglish
Pages (from-to)126-130
Number of pages5
JournalMicrowave and Optical Technology Letters
Issue number2
Publication statusPublished - Jan 20 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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