Patent ID: 8351490

Claim:
A radio frequency identification transceiver, comprising: a transmitter path, comprising; a pulse shaper to tunably shape a pulse of a signal to be transmitted in different predefined frequency ranges; a modulator to modulate the shaped pulse to be transmitted into one of a plurality of predefined frequency ranges; a receiver path, comprising: a demodulator to demodulate a received signal from the plurality of predefined frequency ranges; an in-phase mixer to provide a first differential in-phase signal and a second differential in-phase signal; a quadrature mixer to provide a first differential quadrature signal and a second differential quadrature signal; an in-phase amplifier coupled to the in-phase mixer to amplify the first differential in-phase signal and the second differential in-phase signal; a quadrature amplifier coupled to the quadrature mixer to amplify the first differential quadrature signal and the second differential quadrature signal.