Design and Optimization of A Direct-Conversion Double-Balanced Mixer for RF Receiver Front-End  

作　　者：Frederick Ray I. Gomez 

机构地区：[1]New Product Introduction Department,Back-End Manufacturing&Technology,STMicroelectronics,Inc.9 Mountain Drive,Light Industry&Science Park Ⅱ, Brgy.La Mesa,Calamba City,Laguna,Philippines 4027

出　　处：《Progress of Electrical and Electronic Engineering》2018年第3期12-20,共9页电工电子工程进展

摘　　要：Differential implementation is becoming highly favoured in RFIC (radio frequency integrated circuit) design, notably its high immunity to common-mode noises, acceptable rejection of parasitic coupling, and increased dynamic range. One specific RF front-end building block that is usually designed as a differential circuit is the mixer. This technical paper presents a study of a differential mixer, notably the double-balanced mixer implemented on a direct-conversion architecture in a standard 90nm CMOS (complementary metal-oxide semiconductor) process. Operating frequency is set at 5GHz, which is a typical frequency for RF (radio frequency) receiver. Impedance matching was essential to fully optimize the mixer design. The direct-conversion double-balance mixer design eventually achieved conversion gain of 11.463dB and noise figure of 16.529dB, comparable to mixer designs from past research and studies.

关 键 词：Double-Balanced MIXER Direct CONVERSION CONVERSION Gain Noise Figure RF FRONT-END 

分 类 号：T[一般工业技术]