Patent ID: 8781418

Claim:
An apparatus for power amplification, comprising; input circuitry configured to receive information and to generate in-phase and quadrature phase amplitude control signals and in-phase and quadrature phase control signals from said received information; first vector modulation circuitry, coupled to said input circuitry, configured to receive a frequency reference signal and said in-phase and quadrature phase control signals and to generate a phase angle controlled frequency reference signal; second vector modulation circuitry, coupled to said input circuitry and said first vector modulation circuitry, configured to receive said in-phase and quadrature phase amplitude control signals and said phase angle controlled frequency reference signal first and second substantially constant envelope signals using said phase angle controlled frequency reference signal and said in-phase and quadrature phase amplitude control signals; and power amplification circuitry, coupled to said second vector modulation circuitry, that comprises two or more circuit branches each comprising one or more transistors, wherein outputs of said one or more transistors in said two or more circuit branches form a single circuit node, and wherein said first and second substantially constant envelope signals are simultaneously amplified and combined at said single circuit node of said power amplification circuitry to create a desired output signal.