An RF modulator supporting wide-band signals includes IQ modulation by interleaving the in-phase and quadrature signals. The modulator can be implemented using an integrated circuit having a baseband in-phase stage (10) that receives an in-phase analog input signal, a baseband quadrature stage (12) that receives a quadrature analog input signal, and a switching mixer (18) having a plurality of switches. The switching mixer receives in-phase and quadrature signals from the baseband in-phase stage and the baseband quadrature stage. The switching mixer produces a differential signal combining the in-phase and quadrature signals by interleaving the signals over a plurality of phases of a carrier period.
申请公布号
WO2007117761(A2)
申请公布日期
2007.10.18
申请号
WO2007US61915
申请日期
2007.02.09
申请人
FREESCALE SEMICONDUCTOR INC.;WAGH, POOJAN A.;CONNELL, LAWRENCE E.;MILLER, MATTHEW R.
发明人
WAGH, POOJAN A.;CONNELL, LAWRENCE E.;MILLER, MATTHEW R.