Local quadrature signal and carrier leakage calibration techniques for a mobile-WiMAX transceiver

The work presented here proposes local I/Q phase correction and carrier leakage suppression techniques for WiMAX transceivers. Local I/Q calibration was able to compensate for process and supply voltage variations, and the measured I/Q phase errors after calibration are within 3 degrees. The measure...

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Bibliographic Details
Main Authors: Ito, H, Nakamoto, H, Kudo, M, Kobayashi, N, Marutani, M, Yamazaki, D
Format: Conference Proceeding
Language:eng ; jpn
Subjects:
Calibration
Detectors
Gain
Radio frequency
Semiconductor device measurement
Transceivers
WiMAX
Online Access:Request full text
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Description
Summary:The work presented here proposes local I/Q phase correction and carrier leakage suppression techniques for WiMAX transceivers. Local I/Q calibration was able to compensate for process and supply voltage variations, and the measured I/Q phase errors after calibration are within 3 degrees. The measured carrier leakage after calibration substantially meets WiMAX specifications, and the proposed sequence further reduces carrier leakage more than a conventional binary search method. The transceiver with calibration circuits was implemented in a small package, and its performance meets the WiMAX standard.
DOI:10.1109/ICWITS.2010.5612271