Independently switchable quad-band bandpass filter

Sz Chi Weng, Ko Wen Hsu, Wen Hua Tu

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


A switchable microstrip quad-band bandpass filter (BPS) is investigated in this study. Owing to the low loading effect from distributed coupling technique, many channels can be obtained without the requiring of complicated matching network. Each passband can be turned on and off independently. The switchable quad-band BPS consisting of half-wavelength/quarterwavelength resonators, loaded open stubs and p-i-n diodes features compactness and good selectivity. To validate this design concept, theory as well as experiment is presented and compared in this study.

Original languageEnglish
Pages (from-to)1113-1119
Number of pages7
JournalIET Microwaves, Antennas and Propagation
Issue number14
StatePublished - 2013


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