Design, Fabrication and Analysis of Fast Wideband Frequency Synthesizer with Low Spurious and Phase Noise

Please enable javascript in your browser.

Vahedi, Pouria | 2015

520 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 48152 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Banayi, Ali
Abstract:
In this thesis, design and fabrication of wide band frequency synthesizer with low spurious and low phase noise is investigted. It is very important to use an apropriate frequency synthesizer structure which would meet intended properties. In order to reach a low step size and high switching speed, using DDS is recomended; as well as using composition of DDS and PLL in order to meet a low spurious level. The main objective of this thesis is to investigate the best composition of outlet spures; so beside optimization of other properties, the main motivation has been focused on decreasing spures. Moreover, after studying Mechanisms of spures production in DDS outlet, some methods for decreasing them and stimulation of one of these methods will be presented. Finally the results of designed and fabricated circuit are examined and will be compared with results of simulation and design
Keywords:
Phase Noise ; Phase Locked Loop (PLL) ; Direct Digital Synthesizer (DDS) ; Frequency Synthesizer ; SPURS

No TOC