Patent ID: 8238847

Claim:
A method comprising: phase splitting a reference data signal to generate first and second sets of in-phase and quadrature phase signals; generating, using vector modulators, first, second, third, and fourth substantially constant envelope signals based on the first and second sets of in-phase and quadrature phase signals; amplifying, using an amplifier, the first, second, third, and fourth substantially constant envelope signals; and generating, using a summing device, an output signal based summing the amplified first, second, third, and fourth substantially constant envelope signals, wherein the generating the first set of in-phase and quadrature phase amplitude signals further comprises: determining relative phase angle and magnitude; and processing the determined relative phase angle and magnitude to generate the first set of in-phase and quadrature phase control signals; wherein the determining step comprises: determining a phase shift relative to the reference signal; and determining a complex envelope; wherein the processing further comprises: determining first and second phase shift angles using the complex envelope, wherein the first phase shift angle is equal to a phase difference between the first and second substantially constant envelope signals, and wherein the second phase shift angle is equal to a phase difference between the third and fourth substantially constant envelope signals; and using the phase shift and the phase shift angles to generate the first set of in-phase and quadrature phase amplitude signals.