標題: | A 2.4, 5.2, and 5.7 GHz CMFB gilbert downconverter with low-voltage cascode current mirror input stage |
作者: | Tseng, Sheng-Che Meng, Chinchun Huang, Guo-Wei 電信工程研究所 Institute of Communications Engineering |
關鍵字: | Gilbert mixer;micromixer;CMFB;downconverter;RFIC |
公開日期: | 1-十一月-2006 |
摘要: | A triple-band (2.4, 5.2, and 5.7 GHz) CMFB downconversion micromixer with a low-voltage cascode current mirror RF input stage has been demonstrated by the 0.18-mu m CMOS technology in this letter. Micromixer has a single-ended RF input stage, the CMFB topology is adopted to improve the conversion gain, and a differential-to-single output buffer is used to convert the differential output of the mixer into a single-ended output. The fully integrated downconversion micromixer has the conversion gain of 12 dB, LO-to-IF isolation of 43 dB, LO-to-RF isolation of 48 dB, and RF-to-IF isolation of 18 dB at 2.4 GHz. The mixer has the conversion gain of 7.5 dB, LO-to-IF isolation of 54 dB, LO-to-RF isolation of 49.5 dB, and RF-to-IF isolation of 25 dB at 5.7 GHz. The total quiescent current consumption of the circuit is 7.6 mA. (c) 2006 Wiley Periodicals, Inc. |
URI: | http://dx.doi.org/10.1002/mop.21950 http://hdl.handle.net/11536/11631 |
ISSN: | 0895-2477 |
DOI: | 10.1002/mop.21950 |
期刊: | MICROWAVE AND OPTICAL TECHNOLOGY LETTERS |
Volume: | 48 |
Issue: | 11 |
起始頁: | 2345 |
結束頁: | 2349 |
顯示於類別: | 期刊論文 |