Patent ID: 9042482
Filing Date: 2015-05-26
Classification: H03C,H03F,H04B,H04L

Abstract:
1. A feedback receiver (FBR), comprising: a FBR signal input configured to receive a radio frequency (RF) signal; a first local oscillator (LO) signal input configured to receive a first LO signal having an LO frequency; a second LO signal input configured to receive a second LO signal having the LO frequency, wherein the second LO signal is phase shifted by approximately 90° relative to the first LO signal; and a divider comprising: a first LO output coupled to the first LO signal input, a second LO output coupled to the second LO signal input, and a phase control terminal; wherein a phase control word is provided to the phase control terminal to induce a time-varying phase shift in the first and second LO signals while concurrently retaining a 90° phase shift between the first and second LO signals; wherein the phase control terminal is configured to induce the time-varying phase shift to occur in the first LO signal or the second LO signal by shifting the first LO signal or the second LO signal by substantially 180° while concurrently retaining the 90° phase shift between the first LO signal and the second LO signal.