標題: | Low-Noise Amplifier Design With Dual Reactive Feedback for Broadband Simultaneous Noise and Impedance Matching |
作者: | Fu, Chang-Tsung Kuo, Chien-Nan Taylor, Stewart S. 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Broadband input matching;capacitive feedback;low-noise amplifier (LNA);low power;noise optimized design;simultaneous noise and impedance matching (SNIM);transformer feedback;ultra-wideband (UWB) |
公開日期: | 1-四月-2010 |
摘要: | The simultaneous noise and impedance matching (SNIM) condition for a common-source amplifier is analyzed. Transistor noise parameters are derived based on the more complete hybrid-pi model, and the dominant factors jeopardizing SNIM are identified. Strategies for narrowband and broadband SNIM (BSNIM) are derived accordingly. A dual reactive feedback circuit along with an LC-ladder matching network is proposed to achieve the BSNIM. It includes a capacitive and an inductive feedback, where the former utilizes the transistor parasitic gate-to-drain capacitance and the latter is formed by transformer coupling. This circuit topology has been validated in 0.18- and 0.13-mu m CMOS technologies for a 3-11-GHz ultra-wideband (UWB) and a 2.4-5.4-GHz multistandard application, respectively. The 3-11-GHz UWB low-noise amplifier is detailed as a design example. |
URI: | http://dx.doi.org/10.1109/TMTT.2010.2041570 http://hdl.handle.net/11536/5544 |
ISSN: | 0018-9480 |
DOI: | 10.1109/TMTT.2010.2041570 |
期刊: | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES |
Volume: | 58 |
Issue: | 4 |
起始頁: | 795 |
結束頁: | 806 |
顯示於類別: | 期刊論文 |