相位和增益不平衡对LINC发射机中复合信号的影响

2009 IEEE Youth Conference on Information, Computing and Telecommunication Pub Date : 2009-09-01 DOI:10.1109/YCICT.2009.5382327

Hui Wang, Taifun Liu, Yan Ye, T. Xu

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引用次数: 0

摘要

本文讨论了LINC发射机两支路的相位和增益不平衡对复合信号的影响。在采用微带线设计的3db威尔金森射频合成器的LINC发射机模型上进行了实验。然后讨论了在高效率和良好线性度的情况下，LINC发射机所能容忍的相位和增益误差。验证实验中使用的信号为双载波WCDMA信号，采样率为61.44 M sample /s。验证结果表明，对相位和增益不平衡进行校正是必要的。

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Influence of phase and gainimbalances on recombined signals in LINC transmitters

This paper discusses the influence of phase and gain imbalances between two branches of LINC transmitter on the recombined signals. Experiments are carried out on a model of LINC transmitter using a 3 dB Wilkinson RF combiner which is designed with micro-strip line. Then the phase and gain errors that can be tolerated in the LINC transmitter with high efficiency and good linearity are discussed. The signal used in the Validation experiment is a two-carrier WCDMA signal with the sample rate of 61.44 M Sample/s. The Validation results demonstrate that the correction for phase and gain imbalances is necessary in LINC transmitter.

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2009 IEEE Youth Conference on Information, Computing and Telecommunication

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