標題: 5.2-GHz GaInP/GaAs HBT cascode LNA with 5.5 dB gain enhancement using inter-stage LC matching
作者: Meng, CC
Jhong, JC
電信工程研究所
Institute of Communications Engineering
關鍵字: GaInP/GaAs HBT;LNA;cascode;emitter inductive degeneration;noise
公開日期: 1-Aug-2006
摘要: A gain boosting method without noise-figure degradation by optimizing interstage matching in a coscode low-noise amplifier (LNA) with emitter-degeneration inductor is demonstrated at 5.2 GHz using 2-mu m GaInP/GaAs HBT technology. A low-pass LC matching network is inserted in the interstage of a conventional cascode LNA with emitter-degeneration-inductor to enhance the gain with the same current consumption. The 2-mu m GaInP/GaAs HBT LNA without interstage matching has 14-dB power gain and 2.37-dB noise figure at 5.2 GHz while the 2-mu m GaInP/GaAs HBT LNA with interstage matching has 19.5-dB power gain and 2.22-dB noise figure at 5.2 GHz. The current consumption is 2.3 mA and voltage supply is 3.6 V. (c) 2006 Wiley Periodicals, Inc.
URI: http://dx.doi.org/10.1002/mop.21742
http://hdl.handle.net/11536/11946
ISSN: 0895-2477
DOI: 10.1002/mop.21742
期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume: 48
Issue: 8
起始頁: 1499
結束頁: 1501
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