想学习做GPS的LNA

用ADS

RFMD TOREX 美新正式代理，誉万

用MMIC，价格也便宜。
BGU7003
􀂄 Low noise high gain microwave MMIC
􀂄 Integrated temperature stabilized bias for easy design
􀂄 Bias current configurable with external resistor
􀂄 Noise figure NF = 0.85 dB at 1.575 GHz
􀂄 Power gain = 18.5 dB at 1.575 GHz
􀂄 110 GHz transit frequency - SiGe:C technology
&#1048708; Power down mode current consumption < 1 μA
&#1048708; Optimized performance at low 5 mA supply current
&#1048708; ESD protection > 1kV Human Body Model (HBM) on all pins

我想学习GPS方面的东西，该看哪些资料呢?根据我现在的理解，GPS设计的难度主要在RF的灵敏度方面，芯片的规格一般都可以达到-150多dBm,不知道一般的成品做出来，可以达到多少?软件方面需要学习哪些东西呢?[3721RD.com]