RF transmitter with interleaved IQ modulation

Details RF transmitter with interleaved IQ modulation RF transmitter with interleaved IQ modulation

2006-02-27

2009-10-27

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Transmitters

Reexamination Certificate

active

07609779

ABSTRACT:
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 that receives an in-phase analog input signal, a baseband quadrature stage that receives a quadrature analog input signal, and a switching mixer 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.

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