標題: A 5-GHz direct-conversion receiver with I/Q phase and gain error calibration
作者: Chen, WZ
Lee, TL
Lu, TY
電機學院
College of Electrical and Computer Engineering
公開日期: 2005
摘要: This paper describes the design of a 5GHz direct conversion receiver with phase and gain errors calibration for WLAN application. Integrated both LNA and mixer in a single chip, the conversion gain of the RF receiver is switch-able to compromise between linearity and noise performance. In addition, calibration schemes are proposed to compensate gain and phase errors in the I/Q signal paths. By means of this technique, the measured phase error is reduced to be less than 0.6 degrees and gain error less than 0.2 dB. The receiver provides a conversion gain of 28.2 dB in the high gain mode and 11.6 dB in the low gain mode within the signal bandwidth. The overall noise figure is 6.4dB in the high gain mode, and the third-order input intercept point (IIP3) is about -6.8dBm in the low gain mode. Implemented in a 0.18-mu m CMOS technology, it consumes 37.4 mW from a 1.8 V supply. Chip area is 1.64 mm(2).
URI: http://hdl.handle.net/11536/18032
ISBN: 0-7803-8983-2
ISSN: 1529-2517
期刊: 2005 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, Digest of Papers
起始頁: 201
結束頁: 204
Appears in Collections:Conferences Paper