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引用本文：

沈聪,赵曙光,殷悦,等.WCDMA-GSM七频段手机射频前端的简化设计[J].电讯技术，2011，51（8）： - . [点击复制]
SHEN Cong,ZHAO Shu-guang,YIN Yue,et al.Simplified Design of RF Front end for WCDMA-GSM Seven-band Mobile Phones[J].，2011，51（8）： - . [点击复制]

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WCDMA-GSM七频段手机射频前端的简化设计
沈聪,赵曙光,殷悦,袁茂恺
0 字体:加大+\|默认\|缩小-
(东华大学信息科学与技术学院，上海 201620)

摘要:

通过分析使用SP9T天线开关实现WCDMA-GSM双模七频段的典型手机射频电路，提出了一种采用SP4T天线开关的简化设计方案。该设计在保证性能的前提下，极大地降低了成本和器件面积。测试结果表明，该方案各项射频指标，包括发射功率、灵敏度、PVT、频率误差、相位误差、调制频谱和开关频谱等，全部符合3GPP的通信标准，完全能够实现WCDMA和GSM两种移动通信制式的7个频段的通信能力。该方案已成功应用于实际的手机产品当中。

关键词: WCDMA-GSM双模手机射频前端 SP4T天线开关简化设计

DOI：

基金项目:

Simplified Design of RF Front end for WCDMA-GSM Seven-band Mobile Phones

SHEN Cong,ZHAO Shu-guang,YIN Yue,YUAN Mao-kai

(Information Science and Technology College, Donghua University, Shanghai 201620 ,China)

Abstract:

This paper introduces a simplified design of RF circuits of WCDMA-GSM dualmode sevenband mobile phone based on the SP4T antenna swi tch through analysing the typical architecture by SP9T antenna switch. This design reduces the cost a nd components area greatly and also promises the performance. Test result shows all RF performances of this design including transmit power, sensitivity, PVT , frequency error, phase error, modulation spectrum and switching spectrum are c onsistent with the 3GPP communication standard,and the design can realize WCDMA and GSM seven bands communication.This design has been successfull y applied in mobile phone development.

Key words: WCDMA-GSM mobile phone RF front end SP4T antenna switch simplified design