International Journal of Electrical, Electronics and Data Communication (IJEEDC)
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Feb. 2020
Submitted Papers : 80
Accepted Papers : 10
Rejected Papers : 70
Acc. Perc : 12%
Issue Published : 84
Paper Published : 1397
No. of Authors : 3784
  Journal Paper

Paper Title
Frequency Responses of Noise Figure and Input Matching for Low-Noise Amplifier Design

Abstract
A method for optimizing a low-noise amplifier (LNA) with understanding Frequency responses of its noise figure (NF) and input matching characteristics is introduced. By determining the quality factors (Q-factors) of the NF (Qnf) and the input matching network (Qin), the NF and input return loss (S11) frequency response of an LNA are controlled. According to different purposes such as narrowband or wideband LNAs, the Q-factors should be chosen properly. Medium-Qnf and high-Qnf cascode LNAs in CMOS technologies has been implemented for verifying validity of the proposed theory. Index Terms- Noise figure, input matching, CMOS, low-noise amplifier, quality factor.


Author - Jian-Yu Hsieh, Tao Wang, Hung-Wei Chiu, Yo-Sheng Lin, Shey-Shi Lu, Kuei-Yu Lin

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