標題: | UWB Gilbert downconverter utilising a wideband LR-CR quadrature generator |
作者: | Syu, J. -S. Meng, C. Teng, Y. -H. 電信工程研究所 Institute of Communications Engineering |
公開日期: | 7-五月-2009 |
摘要: | An ultra-wideband (UWB) I/Q downconverter with an LR-CR quadrature generator is demonstrated using 0.35 mu m SiGe HBT technology. The I/Q outputs of this generator are always in quadrature phase at any frequency while the BJT-type active mixer inherently tolerates much LO power difference for a. at gain response. Consequently, the amplitude imbalance and phase error of the I/Q outputs are less than 1 dB and 2 degrees in the RF frequency range 3-11 GHz. |
URI: | http://dx.doi.org/10.1049/el.2009.0613 http://hdl.handle.net/11536/7239 |
ISSN: | 0013-5194 |
DOI: | 10.1049/el.2009.0613 |
期刊: | ELECTRONICS LETTERS |
Volume: | 45 |
Issue: | 10 |
起始頁: | 514 |
結束頁: | U46 |
顯示於類別: | 期刊論文 |