标签: mtt-t03

DualmodeBPfilters_MTT-T031906IEEETRANSACTIONSONMICROWAVETHEORYANDTECHNIQUES,VOL.51,NO.8,AUGUST2003ADual-ModeBandpassFilterWithEnhancedCapacitivePerturbationBoonTiongTan,SiouTeckChew,Member,IEEE,MookSengLeong,SeniorMember,IEEE,andBanLeongOoi,Member,IEEEAbstract―Adual-moderingbandpassfilterwithtwopairsofcapacitorshasbeendesigned.Thecapacitorsareusedtocontrolthelocationoftheeven-andodd-modefrequenciesindependently,allowingweakcouplingfornarrow-bandfilterdesignwithrealizablecapacitancevalues.Theoreticalexpressionshavebeenderivedforthesefrequencies.A4%bandwidthbandpassfiltercenteredat1.9GHzwasdesignedandtestedwithgoodagreementbetweentheoreticalandmeasuredresults.IndexTerms―Bandpass,dualmode,filter,ring.……