Miniaturized microstrip bandpass filter with interdigitated fingers

Subash Vegesna; Mohammad Saed

doi:10.1109/APS.2013.6711053

Miniaturized microstrip bandpass filter with interdigitated fingers

Subash Vegesna, Mohammad Saed

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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 language	English
Title of host publication	2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
Pages	788-789
Number of pages	2
DOIs	https://doi.org/10.1109/APS.2013.6711053
State	Published - Dec 1 2013
Event	2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Orlando, FL, United States Duration: Jul 7 2013 → Jul 13 2013

Publication series

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

Conference

Conference	2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
Country	United States
City	Orlando, FL
Period	07/7/13 → 07/13/13

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Cite this

Vegesna, S., & Saed, M. (2013). Miniaturized microstrip bandpass filter with interdigitated fingers. In 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings (pp. 788-789). [6711053] (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). https://doi.org/10.1109/APS.2013.6711053

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title = "Miniaturized microstrip bandpass filter with interdigitated fingers",

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.",

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Vegesna, S & Saed, M 2013, Miniaturized microstrip bandpass filter with interdigitated fingers. in 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings., 6711053, IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), pp. 788-789, 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013, Orlando, FL, United States, 07/7/13. https://doi.org/10.1109/APS.2013.6711053

Miniaturized microstrip bandpass filter with interdigitated fingers. / Vegesna, Subash; Saed, Mohammad.

2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings. 2013. p. 788-789 6711053 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - 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.

AB - 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.

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Access to Document

10.1109/APS.2013.6711053

Link to publication in Scopus