RF知识泣血总结

leonlxw · 发表于 2008-7-2 10:03:28

有点贵啊

chenjin0011 · 发表于 2011-8-15 15:55:17

很好学到不少东西谢谢楼主

chenjin0011 · 发表于 2011-8-15 16:08:31

很好的文章谢谢楼主

a11may · 发表于 2011-8-15 21:37:36

学习学习

a11may · 发表于 2011-8-15 21:50:28

太贵了吧

pilottcl · 发表于 2011-11-13 23:01:35

下来看看，谢谢！

jisuanji20 · 发表于 2011-12-3 16:13:48

LZ真是花了心思
谢谢啦并收啦

chenlifeng0108 · 发表于 2012-1-6 10:59:57

好资料，望学习哈！1

ANDY_HUA · 发表于 2012-1-9 08:24:14

怎么没人顶呀~

john019 · 发表于 2012-1-22 16:03:27

发现问题解决问题
1、 Bipolar 和 MOSFET 管的噪声系数分别取决于什么？
Answer：（1）Bipolar transistors, whose base resistance typically dominates the noise figure; MOSfets exhibit only one primary source of noise, that generated in the channel. Thus, in submicron technologies, a reasonable combination of device and bias current may provide acceptably low noise.
(2)Gate resistance of MOS devices also contributes thermal noise, who can be minimized by laying out the transistor as a parallel combination of many narrow device.
取决于不同工艺（GaAs, CMOS

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[综合资料] RF知识泣血总结