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JSSC 2020第11期RF & Wireless180nmNeural Network Accelerator

Breaking the Performance Tradeoffs in N-Path Mixer-First Receivers Using a Secon

提出二阶基带噪声消除方案，打破N路径混频器优先接收器的性能折衷。
NF <4 dB, IB-IIP3 +14.5 dBm, OB-IIP3 +25 dBm, 功耗20 mW
混频器优先接收器噪声消除线性度输入匹配N路径
▸二阶基带噪声消除方案
▸解耦输入匹配、噪声系数、线性度与功耗的紧密耦合
▸实现高线性度与低噪声的共存
Abstract
Input-match, noise figure (NF), in-band (IB) third-order input-referred inter cept point (IIP3), out-of-band (OB) IIP3, and power consumption are five crucial performance metrics of a radio frequency (RF) receiver. In a typical passive mixer-first receiver, these five performance metrics are tightly coupled with each other. In this article, a second-order baseband noise-canceling (NC) scheme is proposed to break the perfor- mance tradeoffs in an N-path mixer-first receiver. Analytical expressions for