蓝牙集成接收机中前端电路的设计  

Front-end integrated circuit design for bluetooth receiver

作　　者：崔福良[1] 马德群[1] 叶菁华[1] 黄煜梅[1] 黄林[1] 洪志良[1] 

机构地区：[1]复旦大学集成电路设计实验室,上海200433

出　　处：《系统工程与电子技术》2004年第10期1529-1533,共5页Systems Engineering and Electronics

摘　　要：介绍了一种蓝牙低中频接收机前端电路的设计,包括低噪声放大器(LNA)、Gilbert型混频器(Mixer)、有源复数滤波器(ACF)。利用改进的Gilbert型混频器,实现Mixer与ACF之间的直接电流耦合,避免Mixer与ACF之间需要引入的电压增益级,降低了系统功耗,同时也改善了Mixer的噪声性能。基于0.35μm工艺,对电路的仿真表明电路性能满足接收机的要求。A front-end circuit for bluetooth low intermediate frequency receiver including LNA, Mixer, ACF is described. Some improvements are performed for the mixer, which reduce its noise contribution and enable direct current coupling between mixer and ACF and thus avoid voltage gain stage between them. Based on 0.35 μm technology, simulation results show that the performance of the circuit meets the requirements for bluetooth receiver.

关 键 词：蓝牙 接收机 射频电路 低功耗 

分 类 号：TN432[电子电信—微电子学与固体电子学]