【摘要】 设计了一款433 MHz ASK接收器射频前端电路(包括低噪声放大器和混频器)的版图。射频段电路对寄生效应特别敏感,设计对版图的复杂程度、面积以及由版图造成的寄生进行折中,最大程度地降低寄生对电路的影响。针对低噪声放大器电路对噪声以及混频器电路对于对称性的高要求,着重阐述了设计中对噪声的处理和实现对称性的方法。采用UMC 0.18μm工艺库进行设计和流片。将后仿真及流片测试结果与前仿真结果进行对比,得出该设计能够较好地维持原电路性能,满足系统设计要求。更多还原

【Abstract】 Layout design of an RF front-end for 433 MHz ASK receiver was presented,including the block of LNA and mixer.A trade-off was made between parasitic effects,which is important in RF IC,and circuit complexity and area.During the design,noise and symmetry due to the high demand of LNA’s low noise and mixer’s high-level symmetry were taken into particular consideration.The post layout simulation and tape-out results show that the design with UMC’s 0.18 μm process can maintain the performance of circuit and meet the demand of system.更多还原