Miniaturized microstrip bandpass filter with interdigitated fingers

Subash Vegesna, Mohammad Saed

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, a compact microstrip bandpass filter with improved selectivity and spurious harmonic suppression is presented. The proposed filter design makes use of a resonator with interdigitated fingers to achieve compactness as well as high-selectivity by introducing two transmission zeros, with just two resonators. Miniaturization of about 48% and 20% is achieved in comparison to filters realized using open-loop resonators and stepped-impedance resonators, respectively. In addition, the filter design is modified to suppress the spurious resonances without significant increase in the filter size. Spurious resonances are suppressed to frequencies more than 5 times the fundamental resonance frequency. Good agreement between simulated and measured results is obtained.

Original languageEnglish
Title of host publication2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
Pages788-789
Number of pages2
DOIs
StatePublished - 2013
Event2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Orlando, FL, United States
Duration: Jul 7 2013Jul 13 2013

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Conference

Conference2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
CountryUnited States
CityOrlando, FL
Period07/7/1307/13/13

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