標題: | 2.4/5.7-GHz CMOS Dual-Band Low-IF Architecture Using Weaver-Hartley Image-Rejection Techniques |
作者: | Meng, Chin-Chun Wu, Tzung-Han Syu, Jin-Siang Yu, Sheng-Wen Tsung, Kuan-Chang Teng, Ya-Hui 電信工程研究所 Institute of Communications Engineering |
關鍵字: | Divider;Hartley architecture;image rejection;secondary image rejection;Weaver architecture |
公開日期: | 1-三月-2009 |
摘要: | A 2.4/5.7-GHz dual-band Weaver-Hartley architecture, using 0.18-mu m CMOS technology, is demonstrated in this paper. The 2.4-GHz signal is set to be the image signal when the desired signal is at 5.7 GHz, and vice versa. Since the Weaver and Hartley systems are combined into this architecture, the demonstrated architecture rejects not only the first image signal, but also the secondary image signal. The image-rejection ratios of the first image signal and the secondary image signal are better than 40 and 46 dB, respectively. In this paper, a diagrammatic explanation is employed to obtain the image-rejection mechanisms of the Weaver-Hartley architecture. |
URI: | http://dx.doi.org/10.1109/TMTT.2008.2012300 http://hdl.handle.net/11536/7526 |
ISSN: | 0018-9480 |
DOI: | 10.1109/TMTT.2008.2012300 |
期刊: | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES |
Volume: | 57 |
Issue: | 3 |
起始頁: | 552 |
結束頁: | 561 |
顯示於類別: | 期刊論文 |