A CMOS RF front end of down conversion tuner is designed using UMC 0.18um MM/RF CMOS process for new generation satellite system. It is mainly composed of mixers, a programmable amplifier, IF amplifiers and PLL frequency synthesizers. It can be used to complete signal receiving, frequency conversing and signal amplifying. Based on simulation, IF gain is about 20dB,Noise figure is below 12dB, 1dB compression point, IIP3 and IIP2 is about -5dBm, 8dBm and 25dBm. The sample chip will be taped out soon.
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机译：针对新一代卫星系统，使用UMC 0.18um MM / RF CMOS工艺设计了下变频调谐器的CMOS RF前端。它主要由混频器，可编程放大器，IF放大器和PLL频率合成器组成。它可以用于完成信号接收，频率转换和信号放大。根据仿真，中频增益约为20dB，噪声系数低于12dB，压缩点为1dB，IIP3和IIP2约为-5dBm，8dBm和25dBm。样品芯片将很快被录音。
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