Patent ID: 7369822

Claim:
A transmitter circuit comprising: a first input port for receiving of a first phase modulated signal at a carrier frequency; a second input port for receiving of a second phase modulated signal at the carrier frequency; a first circuit branch having a first end coupled with the first input port for receiving of the first phase modulated signal; a second circuit branch having a first end coupled with the second input port for receiving of the second phase modulated signal; a first plurality of switching power amplifiers disposed between the first end and second end of the first branch, each for receiving of the first phase modulated signal and each for in a first mode of operation increasing a magnitude of the first phase modulated signal to form, in combination, a first plurality of magnitude increased signals and in a second mode of operation each for other than increasing the magnitude of the first phase modulated signal, wherein the first mode and the second mode for each are switchably selected therebetween; a second plurality of switching power amplifiers disposed between the first end and second end of the second branch, each for receiving of the second phase modulated signal and each for in a first mode of operation increasing a magnitude of the second phase modulated signal to form, in combination, a second plurality of magnitude increased signals, and in a second mode of operation each for other than increasing the magnitude of the second phase modulated signal, wherein the first mode and the second mode for each are switchably selected therebetween; and, a combining circuit comprising an output port and coupled with the second end of the first branch and the second end of the second branch for receiving of the first and second magnitude increased signal and for combining the first and second magnitude increased signal to form a RF output signal.