Calibration technique of channel mismatches in hybrid filter banks ADC - 文章详情页

作者：

Liu, Su-Juan (Liu, Su-Juan.) | Yang, Yue (Yang, Yue.) | Zhang, Te (Zhang, Te.) | Chen, Jian-Xin (Chen, Jian-Xin.)

收录：

EI Scopus PKU CSCD

摘要：

The　channel　mismatches　degrade　the　reconstruction　performance　of　hybrid　filter　banks　(HFB)　analog-to-digital　converters　(ADC).　This　paper　presents　a　comprehensive　model　that　takes　gain,　phase,　and　bandwidth　mismatches　into　account.　Based　on　this　model,　a　method　that　calculates　the　value　of　the　channel　mismatches　by　solving　overdetermined　equations　is　developed.　An　improved　architecture　is　introduced　based　on　the　model　and　the　perfect　reconstruction　expression　is　derived.　Finally,　a　two-channel　160MHz　12-bit　HFB　ADC　system　is　implemented.　The　experimental　results　show　that　the　proposed　calibration　technique　produces　about　23　dB　of　spurious-free　dynamic　range　(SFDR)　enhancement.

关键词：

Calibration Filter banks Analog to digital conversion

作者机构：

[ 1 ] [Liu, Su-Juan]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Yang, Yue]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhang, Te]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Chen, Jian-Xin]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

liusujuan@bjut.edu.cn

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