标签: modulators

PINDiodeVectorModulators-FundamentalsandDriveRequirementsAN3001ApplicationNotePINdiodeVectorModulatorsFundamentalsandDriveRequirementsV3.00IntroductionM/A-COM’sChipScalePackage(CSP)vectormodulatorplatformoffersameansofvaryingattenuationandphaseinasinglesurfacemountpackage.Thesevectormodulatorsofferlinearphaseandminimalamplituderippleintheirbandsofoperation.DuetousingPINdiodesastheactivedevices,thesevectormodulatorshavehighinterceptpoints.Thesevectormodulatorsoperateintandemwithaduallinearizer,MADRCC0002thathasbeendevelopedbyM/A-COM.Case2.IfthediodesinthetopVVAaresettoanimpedanceof50ohms,thetopVVAwillbeinahighlossstate.TheoutputofthebottomVVAwillhaveaphaseof-90°or90°,dependingontheimpedanceoftheterminatingdiodes……