2.4/5.7-GHz CMOS Dual-Band Low-IF Architecture Using Weaver–Hartley Image-Rejection Techniques

Autor:	Tzung-Han Wu, Jin-Siang Syu, Sheng-Wen Yu, Chinchun Meng, Ya-Hui Teng, Kuan-Chang Tsung
Rok vydání:	2009
Předmět:	Engineering Radiation Noise measurement business.industry Integrated circuit Condensed Matter Physics Signal law.invention Image response CMOS law Electronic engineering Radio frequency Multi-band device Electrical and Electronic Engineering Transceiver business
Zdroj:	IEEE Transactions on Microwave Theory and Techniques. 57:552-561
ISSN:	1557-9670 0018-9480
DOI:	10.1109/tmtt.2008.2012300
Popis:	A 2.4/5.7-GHz dual-band Weaver-Hartley architecture, using 0.18-mum 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::34baa6bb446fbf8e787b2bd0cdb901f1 https://doi.org/10.1109/tmtt.2008.2012300 Zobrazit plný text záznamu