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Article: Periodically nonuniform coupled microstrip-line filters with harmonic suppression using transmission zero reallocation

TitlePeriodically nonuniform coupled microstrip-line filters with harmonic suppression using transmission zero reallocation
Authors
KeywordsBandpass filter
Harmonic suppression
J-inverter network
Periodically nonuniform microstrip coupled line
Transmission zero
Issue Date2005
PublisherIEEE
Citation
Ieee Transactions On Microwave Theory And Techniques, 2005, v. 53 n. 5, p. 1817-1822 How to Cite?
AbstractIn this paper, the two-port periodically nonuniform coupled microstrip line with finite length is thoroughly studied as an equivalent J-inverter network for microstrip bandpass filters with harmonic suppression. Extracted J-inverter susceptance is exhibited to vary up and down versus frequency with the null or transmission zero when the coupled length becomes half-wave-length. This transmission zero can be adjusted by varying the periodicity and/or slit depth to suppress the first spurious harmonic passband of the filter. Firstly, two one-stage bandpass filters with wide and narrow bandwidths are designed to assure the first-harmonic passband is fully suppressed as illustrated in theory and experiment. Secondly, a three-stage bandpass filter with harmonic suppression is designed optimally. The predicted S-parameters are found in good agreement with the measured values, at least 40-dB insertion loss, at the point where the first-harmonic passband is achieved. © 2005 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/92848
ISSN
2015 Impact Factor: 2.284
2015 SCImago Journal Rankings: 1.346
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSun, Sen_HK
dc.contributor.authorZhu, Len_HK
dc.date.accessioned2010-09-22T05:01:27Z-
dc.date.available2010-09-22T05:01:27Z-
dc.date.issued2005en_HK
dc.identifier.citationIeee Transactions On Microwave Theory And Techniques, 2005, v. 53 n. 5, p. 1817-1822en_HK
dc.identifier.issn0018-9480en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92848-
dc.description.abstractIn this paper, the two-port periodically nonuniform coupled microstrip line with finite length is thoroughly studied as an equivalent J-inverter network for microstrip bandpass filters with harmonic suppression. Extracted J-inverter susceptance is exhibited to vary up and down versus frequency with the null or transmission zero when the coupled length becomes half-wave-length. This transmission zero can be adjusted by varying the periodicity and/or slit depth to suppress the first spurious harmonic passband of the filter. Firstly, two one-stage bandpass filters with wide and narrow bandwidths are designed to assure the first-harmonic passband is fully suppressed as illustrated in theory and experiment. Secondly, a three-stage bandpass filter with harmonic suppression is designed optimally. The predicted S-parameters are found in good agreement with the measured values, at least 40-dB insertion loss, at the point where the first-harmonic passband is achieved. © 2005 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEEen_HK
dc.relation.ispartofIEEE Transactions on Microwave Theory and Techniquesen_HK
dc.subjectBandpass filteren_HK
dc.subjectHarmonic suppressionen_HK
dc.subjectJ-inverter networken_HK
dc.subjectPeriodically nonuniform microstrip coupled lineen_HK
dc.subjectTransmission zeroen_HK
dc.titlePeriodically nonuniform coupled microstrip-line filters with harmonic suppression using transmission zero reallocationen_HK
dc.typeArticleen_HK
dc.identifier.emailSun, S:sunsheng@hku.hken_HK
dc.identifier.authoritySun, S=rp01431en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TMTT.2005.847079en_HK
dc.identifier.scopuseid_2-s2.0-19544393226en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-19544393226&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume53en_HK
dc.identifier.issue5en_HK
dc.identifier.spage1817en_HK
dc.identifier.epage1822en_HK
dc.identifier.isiWOS:000229053600030-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridSun, S=7404509453en_HK
dc.identifier.scopusauthoridZhu, L=7404201926en_HK

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