433MHz ASK接收机射频前端版图设计  

Layout Design of RF Front-End for 433MHz ASK Receiver

作　　者：吴岳婷[1] 张润曦[1] 沈怿皓[1] 陈元盈[1] 周灏[1] 赖宗声[1] 

机构地区：[1]华东师范大学微电子电路与系统研究所,上海200062

出　　处：《微电子学》2007年第6期798-800,805,共4页Microelectronics

基　　金：上海市科委基金资助项目"802.11a/b/gWLAN射频前端双频切换技术研究"(06SA14)

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。Layout design of an RF front-end for 433 LNA and mixer. A trade-off was made between parasitic MHz ASK receiver was presented, including the block of 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 highlevel symmetry were taken into particular consideration. The post layout simulation and tape-out results show that the design with UMC＇s 0.18μm process can maintain the performance of circuit and meet the demand of system.

关 键 词：幅度键控接收器 射频前端 版图 布局 保护环 对称性 

分 类 号：TN402[电子电信—微电子学与固体电子学]