A carrier leakage calibration and compensation technique for wideband wireless transceiver

A carrier leakage calibration and compensation technique based on digital baseband for a wideband wireless communication transceiver is proposed. The digital baseband transmits a calibration signal, samples the signal which passes through the transmitter path and the calibration loop in the RF chip,...

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Bibliographic Details
Published inJournal of semiconductors Vol. 35; no. 6; pp. 102 - 108
Main Author 周立国 彭锦 袁芳 方治 颜峻 石寅
Format Journal Article
LanguageEnglish
Published 01.06.2014
Subjects
Calibration
Carriers
Digital
Leakage
Local area networks
Semiconductors
Transceivers
Wideband
Wireless communication
宽带无线通信
数字基带
无线局域网络
无线收发器
校准信号
泄漏
补偿技术
载波
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ISSN1674-4926
DOI10.1088/1674-4926/35/6/065003

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Summary:A carrier leakage calibration and compensation technique based on digital baseband for a wideband wireless communication transceiver is proposed. The digital baseband transmits a calibration signal, samples the signal which passes through the transmitter path and the calibration loop in the RF chip, measures the carrier leakage by analyzing the sampled data and compensates it. Compared with a self-calibration technique in the RF chip, the proposed technique saves area and power consumption for the wireless local area network （WLAN） solution. This technique has been successfully used for 802.1 In system and satisfies the requirement of the standard by achieving over 50 dB carrier leakage suppression.
Bibliography:Zhou Liguo, Peng Jin, Yuan Fang, Fang Zhi, Yan Jun, Shi Yin 1 Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China 2 Suzhou Institute of Nano-Tech and Nano-Bionics （SINANO）, Chinese Academy of Sciences, Suzhou 215123, China
A carrier leakage calibration and compensation technique based on digital baseband for a wideband wireless communication transceiver is proposed. The digital baseband transmits a calibration signal, samples the signal which passes through the transmitter path and the calibration loop in the RF chip, measures the carrier leakage by analyzing the sampled data and compensates it. Compared with a self-calibration technique in the RF chip, the proposed technique saves area and power consumption for the wireless local area network （WLAN） solution. This technique has been successfully used for 802.1 In system and satisfies the requirement of the standard by achieving over 50 dB carrier leakage suppression.
802.11 n; WLAN; direct-conversion; carrier leakage; calibration; DC offset
11-5781/TN
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ISSN:1674-4926
DOI:10.1088/1674-4926/35/6/065003