IQ Calibration Techniques for CMOS Radio Transceivers
Author: Sao-Jie Chen
Publisher: Springer Science & Business Media
Published: 2006-09-22
Total Pages: 106
ISBN-13: 1402050828
DOWNLOAD EBOOKThe 802.11n wireless standard uses 64-state quadrature amplitude modulation (64-QAM) to achieve higher spectral efficiency. Consequently, the transmitter and receiver require a higher signal to noise ratio with the same level of error rate performance. This book offers a fully-analog compensation technique without baseband circuitry to control the calibration process. Using an 802.11g transceiver design as an example, it describes in detail an auto-calibration mechanism for I/Q gains and phases imbalance.