@inproceedings{94c416dd5ebd4d139855cd41102830ad,
title = "A self-calibrated LC quadrature VCO in a current-limited region",
abstract = "This paper presents a self-calibrated LC quadrature VCO (LC QVCO) which operates in a current-limited region. Our steady-state phasor analysis shows that phase and amplitude errors of an LC QVCO are linearly related to each other if the LC QVCO is designed to operate in a current-limited region. Based on this linear relationship, we propose a self-calibration technique which uses a low speed amplitude error detector instead of a conventional high speed phase error detector for I/Q error compensation of an LC QVCO. As a prototype, a 2.7GHz self-calibrated LC QVCO was implemented in a 0.18um CMOS process. The LC QVCO core and the self-calibration loop consume 7.6mA and 0.4mA from a 1.8V supply, respectively, and successfully compensate for phase and amplitude errors.",
keywords = "I/Q signal generation, Self-calibration, Voltage controlled oscillators",
author = "Sangjin Byun and Kim, \{Kwan Woo\} and Lee, \{Dong Ho\} and Joy Laskar and Kim, \{Cheon Soo\}",
year = "2008",
doi = "10.1109/RFIC.2008.4561458",
language = "English",
isbn = "9781424418091",
series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",
pages = "379--382",
booktitle = "Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008",
note = "2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 ; Conference date: 15-06-2008 Through 17-06-2008",
}