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Conference Paper: Coupling dispersion of parallel-coupled microstrip lines for dual-band filters with controllable fractional pass bandwidths

TitleCoupling dispersion of parallel-coupled microstrip lines for dual-band filters with controllable fractional pass bandwidths
Authors
KeywordsControllable dual pass bandwidths
Dual-band filters
Parallel-coupled microstrip lines and stepped-impedance resonators
Issue Date2005
PublisherI E E E. The Journal's web site is located at http://www.ims2006.org
Citation
Ieee Mtt-S International Microwave Symposium Digest, 2005, v. 2005, p. 2195-2198 How to Cite?
AbstractDual-band bandpass filters with controllable fractional bandwidths (FBWs) are constructed by cascading the multiple λ/2 stepped-impedance resonators (SIRs) through the distributed parallel-coupled microstrip lines (PCMLs). By suitably choosing the aspect ratio of two strip widths or impedances in the SIR, the first two resonant frequencies are allocated to 2.4 and 5.2 GHz for dual-band filter application. These PCMLs with different overlapped lengths are investigated to show their distributed coupling performance in terms of explicit J-inverter susceptances. For the first time, it implies that the coupling degrees at two resonances can be adjusted with freedom to control the FBWs of these dual pass bandwidths. Then, the three one-stage dual-band SIR circuits are characterized to initially exhibit the dual-band performances in terms of S-parameters. In final, the three two-stage filters are optimally designed and fabricated to demonstrate in reality the dual-band performance with controllable FBW parameters. © 2005 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/92865
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorSun, Sen_HK
dc.contributor.authorZhu, Len_HK
dc.date.accessioned2010-09-22T05:01:58Z-
dc.date.available2010-09-22T05:01:58Z-
dc.date.issued2005en_HK
dc.identifier.citationIeee Mtt-S International Microwave Symposium Digest, 2005, v. 2005, p. 2195-2198en_HK
dc.identifier.issn0149-645Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/92865-
dc.description.abstractDual-band bandpass filters with controllable fractional bandwidths (FBWs) are constructed by cascading the multiple λ/2 stepped-impedance resonators (SIRs) through the distributed parallel-coupled microstrip lines (PCMLs). By suitably choosing the aspect ratio of two strip widths or impedances in the SIR, the first two resonant frequencies are allocated to 2.4 and 5.2 GHz for dual-band filter application. These PCMLs with different overlapped lengths are investigated to show their distributed coupling performance in terms of explicit J-inverter susceptances. For the first time, it implies that the coupling degrees at two resonances can be adjusted with freedom to control the FBWs of these dual pass bandwidths. Then, the three one-stage dual-band SIR circuits are characterized to initially exhibit the dual-band performances in terms of S-parameters. In final, the three two-stage filters are optimally designed and fabricated to demonstrate in reality the dual-band performance with controllable FBW parameters. © 2005 IEEE.en_HK
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://www.ims2006.orgen_HK
dc.relation.ispartofIEEE MTT-S International Microwave Symposium Digesten_HK
dc.subjectControllable dual pass bandwidthsen_HK
dc.subjectDual-band filtersen_HK
dc.subjectParallel-coupled microstrip lines and stepped-impedance resonatorsen_HK
dc.titleCoupling dispersion of parallel-coupled microstrip lines for dual-band filters with controllable fractional pass bandwidthsen_HK
dc.typeConference_Paperen_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/MWSYM.2005.1517186en_HK
dc.identifier.scopuseid_2-s2.0-27144527327en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-27144527327&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume2005en_HK
dc.identifier.spage2195en_HK
dc.identifier.epage2198en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridSun, S=7404509453en_HK
dc.identifier.scopusauthoridZhu, L=7404201926en_HK

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