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A Reflectionless Receiver With Absorptive IF Amplifier and Dual-Path Noise-Canceli
一种具有吸收性IF放大器和双路径噪声消除功能的反射抑制接收器
最小噪声系数3.6 dB，峰值输入三阶截点-11.7 dBm
反射抑制接收器吸收性IF放大器双路径噪声消除低噪声放大器高阶QAM调制
▸吸收性IF放大器抑制带外信号反射
▸双路径噪声消除LNA实现低噪声
▸支持多Gb/s和高阶QAM调制
Abstract
This article presents a 22.6–39.2-GHz reflectionless
receiver (RX) capable of reducing the in-band intermodulation
and high-order mixing products. Such RX consists of an absorp-
tive IF amplifier, a double-balance passive mixer, and a dual-
path noise-canceling low noise amplifier (LNA). The absorptive
IF amplifier is utilized to suppress the out-of-band signal reflected
back to mixer, which can reduce the intermodulation and
high-order mixing products caused by the remixing of the out-
of-band signa