文档介绍：A <12mW, - Receiver with Resonant Multi-phase LO and Current Reuse Harmonic Rejection Baseband Caroline Andrews, Luke Diamente, Ben Johnson, and Alyosha Molnar Cornell University, Ithaca, New York, 14853 Abstract —We present a wide tuning range passive mixer-?rst receiver with resonant non-overlapping LO drive and noise- power optimized multi-path baseband ampli?er. The receiver consumes 10-12mW (including VCOs, pulse generation and baseband) over a frequency range of - with a supply. An LO generation architecture generates a % duty cycle resonant clock from plementary LC-tank VCOs. A capacitor sharing technique on the baseband side of the mixer doubles the RX frequency range of the 8-phase clock, achieving a NF as low as 7dB. The low noise baseband ampli?er reuses the bias current of its four input channels while rejecting the 3 rd /5 thharmonics by > 34dB. Index Terms —harmonic mixing, harmonic rejection, mixer, multi-phase, multi-phase clock, out-of-band interference, passive mixer, receiver, SAW-less, software-de?ned radio (SDR), switch- ing receiver, wideband receiver I. I NTRODUCTION Recent interest in single chip software de?ned radios has led to the development of many low noise, highly linear, wideband receivers based on passive mixers [1], [2], [3]. These mixers provide both ?ltering and frequency downconversion across a wide frequency