A new closed-from mathematical approach to achieve minimum phase noise in frequency synthesizers
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JECEI-2-1_002
تاریخ نمایه سازی: 15 آذر 1394
Abstract:
the aim of this paper is to minimize output phases nois for the pure signal synthesis in frequency synthesizers.for this purpose frist an axact mathematical model of phase locked loop based frequency synthesizer is described and analyzed.then an exact closed-from formular in terms of synthesizer bandwidth and total output phasee noise is extracted.based on this formula the phase noise diagram as a function of bandwidth is plotted.from the analysis and simulation results it is observed taht the synthesizer has a minimum phase noise at a particular bandwidth.
Keywords:
frequency synthesizers-phases noise-phases-locked loop-phases noise reduction
Authors
sattar samadigorji
babol nushirvani university of technology department of electrical engineering- babol -iran
bijan zakeri
babol nushirvani university of technology department of electrical engineering- babol -iran
mohammad reza zahabi
babol nushirvani university of technology department of electrical engineering- babol -iran