标签: chapter7

复旦数字电路设计chapter7

Chapter7_mPowerDividerandDirectionalCouplerIntroductionA3-portor4-portnetworkforpowerdividingandcombining.3-port:T-junction.4-port:directionalcouplersandhybrids.Powerdividersareoftenofequalpowerdivision.Directionalcouplerscanbedesignedforarbitrarypowerdivision.Hybridjunctionsusuallyhaveequalpowerdivisionandaphaseshiftof90oor180obetweentheoutputports.OutlineBasicPropertiesT-JunctionPowerDividerWilkinsonPowerDividerQuadrature(90o)HybridRingHybridCoupledLineDirectionalCouplerLangeCouplerBasicPropertiesThree-portNetworks(T-Junctions)IfthecomponentispassiveandcontainsnoanisotropicmaterialsThenetworkisreciprocaland[S]issymmetric(Sij=Sji).Athree-portlosslessreciprocal……