Quadrant switching method for phase shifter

Quadrature alignment in communications receivers

Quadrature frequency doubler with adjustable phase offset

Quadrature frequency doubling system

Quadrature LINC transmission method and apparatus

Quadrature modulation apparatus, method, program, and...

Quadrature modulation circuit for use in a radio transmitter

Quadrature modulation circuits and systems supporting...

Quadrature modulation transmitter

Quadrature modulation with reduced phase-error distortion

Quadrature modulator

Quadrature modulator

Quadrature modulator and calibration method

Quadrature modulator carrier quadrature error detection...

Quadrature modulator imbalance estimator and modulator stage...

Quadrature modulator with feedback control and optical...

Quadrature modulator with integrated distributed RC filters

Quadrature overlapping modulation system

Quarter duty cycle pulse generator for interleaved switching...

Quasi-orthogonal space-time codes