Patent ID: 8195118

Claim:
An apparatus to process phased array signals, the apparatus comprising: a two-phase local oscillator that generates an in-phase sinusoidal signal of a fixed frequency and a quadrature sinusoidal signal of the fixed frequency having a ninety degree phase shift from the in-phase sinusoidal signal; a signal generator that receives the in-phase sinusoidal signal and the quadrature sinusoidal signal and generates a controllable sinusoidal signal of the fixed frequency, wherein the controllable sinusoidal signal comprises a shiftable phase; and a mixer that varies an amplitude and shifts a phase of an input signal by mixing the input signal with the controllable sinusoidal signal to generate an output signal, wherein the input signal and the output signal carry phase and amplitude information required for phased array signal processing, wherein the controllable sinusoidal signal further comprises a variable amplitude.