標題: | 5.7 GHz Gilbert I/Q downconverter integrated with a passive LO quadrature generator and an RF Marchand balun |
作者: | Syu, Jin-Siang Meng, Chinchun Yen, Ying-Chieh 電信工程研究所 Institute of Communications Engineering |
關鍵字: | Gilbert mixer;I/Q downconverter;Marchand balun;SiGeBiCMOS |
公開日期: | 1-二月-2008 |
摘要: | A 5.7 GHz I/Q downconversion mixer is demonstrated in this letter using 0.35 mu m SiGe BiCMOS technology. A quarter-wavelength coupled line and two center-tapped transformers are utilized to generate differential quadrature LO signals. A miniaturized Marchand balun is placed before the common-base-configured RF input stage of each I/Q Gilbert mixer to generate balanced RF signals. All the reactive passive elements are placed directly on the standard silicon substrate. The 5.7 GHz I/Q downconverter achieves 7 dB conversion gain, -26 dBm IP1dB, and -18 dBm IIP3 at the power consumption of 3.875 mW and 2.5 V supply voltage. |
URI: | http://dx.doi.org/10.1109/LMWC.2007.915133 http://hdl.handle.net/11536/9728 |
ISSN: | 1531-1309 |
DOI: | 10.1109/LMWC.2007.915133 |
期刊: | IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS |
Volume: | 18 |
Issue: | 2 |
起始頁: | 127 |
結束頁: | 129 |
顯示於類別: | 期刊論文 |