A harmonic-selective wireless Full-Band-Capture receiver with digital harmonic rejection calibration

Abstract

A 30mW Full-Band-Capture receiver based on harmonic selection is presented. The prototype receiver employs a 32-phase non-overlapping LO, and is capable of simultaneously receiving multiple wireless signals arbitrarily located between 600MHz and 3GHz. The receiver achieves 2.4 to 5dB NF and tolerates more than −10dBm out-of-band blockers. A digital harmonic rejection calibration is also proposed to overcome phase and amplitude mismatches in the 32-phase LO and down-conversion paths.