標題: | Low voltage 2-mW 6-10.6-GHz ultra-wideband CMOS mixer with active balun |
作者: | Hsu, Ta-Tao Kuo, Chien-Nan 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
公開日期: | 2006 |
摘要: | A low-voltage and low-power CMOS mixer with an active balun is designed for frequency down-conversion in ultra-wideband applications. The mixer contains CMOS amplifiers as the LO buffer and the modulating stage in a folded configuration to allow low-voltage operation. The RF input signal comes from a new low-power active balun that uses a pair of common-source NMOS and common-gate PMOS transistors. This balun gives an impedance transformation ratio of 1:2, and provides a differential signal within 0.5dB and 1.5 degrees of gain and phase imbalance, respectively, from 6 to 10.6-GHz The mixer and the active balun are designed in 0.18 mu in CMOS technology to operate at 1.2-V supply voltage. The circuit performance of the mixer with the active balun achieves flat conversion gain of 17 dB within 1 (113 variation, the maximum IIP3 of 0 dBm, and the minimum noise figure of 13 dB. The total circuit only consumes power of 2 mW. As compared to typical designs, it saves about 85% and 95% of power consumption in the balun and the mixer circuits, respectively. |
URI: | http://hdl.handle.net/11536/17282 |
ISBN: | 978-0-7803-9389-9 |
ISSN: | 0271-4302 |
期刊: | 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS |
起始頁: | 5704 |
結束頁: | 5707 |
顯示於類別: | 會議論文 |