Tunable LNA filter design using coupled-inductor Q-enhancement

被引：0
|
作者：
Michel Al Khoury
Bernard Jarry
Bruno Barelaud
Julien Lintignat
机构：
[1] Université de Limoges,XLIM, UMR CNRS 6172
来源：
Analog Integrated Circuits and Signal Processing | 2018年 / 97卷
关键词：
LNA filter; Inductor degenerated LNA; Q-enhanced inductors; Negative resistance; Quality factor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A tunable LNA filter using Q-enhanced inductors is designed in 0.25 μm BiCMOS Qubic4x technology. The design employs the inductor degenerated LNA, acting as a transconductance which converts the input voltage to output current which drives the second-order Q-enhanced filter. The filter also uses a special technique based on coupled-inductor negative resistance generator to make the quality factor and the center frequency tunable. The overall gain of the LNA filter is about 19.5 dB and the minimum noise figure is 6.4 dB. The center frequency is 942.5 MHz with a 42 MHz (3 dB) bandwidth.
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页码：323 / 332
页数：9
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