Patent ID: 8391426

Claim:
A phase synthesis network having self healing capability, comprising: two input terminals configured to receive respectively an in-phase signal and a quadrature signal; two phase rotators, each configured to receive a respective one of said in-phase signal and said quadrature signal from said input terminals, each of said phase rotators having an input configured to receive a digital control signal, and configured to adjust a phase and a gain of said phase rotator in response to said digital control signal, each of said phase rotators having an output terminal configured to provide a respective output signal; a switch configured to receive each of said respective output signals from said phase rotators and configured to provide at an output terminal a selected one of said respective output signals as output for mixing with a predetermined one of said respective output signals; two mixers, each configured to receive a signal from a respective one of said output terminals of said phase rotators, each configured to receive an RF signal, each configured to receive an output signal from said output terminal of said switch, each configured to mix said received signals, and each having an output terminal configured to provide a mixed output signal; two analog-to-digital converters, each analog-to-digital converter configured to receive a respective one of said mixed output signal and to provide a respective digital signal in response thereto; a baseband digital processor configured to receive said two digital signals from said two analog-to-digital converters, and to generate a respective digital control signal, said digital control signals provided as control signals to a respective one of said phase rotator input configured to receive said digital control signal; and at least one output terminal configured to provide an output signal representative of said RF signal.