基于直接下变频的系统架构,接收机集成了低噪声放大器、I/Q下变频器、去直流偏移滤波器、基带放大器和信道选择滤波器。
Based on a direct-conversion architecture, the receiver integrates LNA, I/Q mixer, DC-offset removal filter, baseband amplifier and channel-select filters on a single chip.
基于这种背景,本文提出了一种应用于超宽带系统的高性能(低压、高线性度、高变频增益)直接下变频混频器,采用标准的CMOS工艺设计和实现。
To solve these problems, this paper presents a high performance, namely low voltage, high linearity and high conversion gain, CMOS direct down conversion mixer for UWB (Ultra Wide Band) system.
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