12040

11035

كارشناسي ارشد

مخابرات(ميدان)

اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر

1395

پانزده،108ص.: مصور، جدول، نمودار

ص. ع. به فارسي و انگليسي

رضا صفيان

غلامرضا عسكري

ابوالقاسم زيدآبادي، اصغر غلامي

1395/11/05

كتابنامه

برق و كامپيوتر

مهندسي برق و كامپيوتر

ID11035

Design and Simulation of Microwave Photonic Delay Line Somaye Kaviani Dezaki s kaviani@ec iut ac ir January 4 2017 Department of Electrical and Computer Engineering Isfahan Unuversity of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Dr Reza Safian rsafian@cc iut ac irAbstract Microwave photonic or MWP puts together optoelectronics and radio frequency RF issues This tech nology is used for various applications like optical functions buffering dispersion measurement RF systems radar wireless communication and measurement systems One of the interesting applications of MWP is optical implemen tation of RF delay line Delay line is one of the important components in phased array antennas radar systems dopplerfilter digital communication and optical processing of microwave signals Optical implementation of RF delay lineshas many advantages including the exceptional properties of optical fibers and optical technology advances that arethe main motivations to realize this method There are different methods in microwave frequency band to make delay lines for microwave applications But allof them have high losses limited bandwidth limited delay or low operating frequency So the best method to delay linedesign is use of MWP technology The use of optical fiber as a delay line was first proposed by Wilnwer and Heuveland later developed by optical fiber delay line signal processing work at Stanford University and this field has becomean active research area In the most of cases the delay lines were implemented by optical switches FBGs and slow light In this thesis design and analysis of a tunable microwave photonic delay line is presented Design procedure andimportant challenges of microwave and optical components are discussed A full structure of a variable delay line withits main microwave and optical components like low noise amplifier electrical optical converter modulators delay line switch and optical amplifier are considered and explained 100ns to 12 7 s variable delay with 100ns step is achievedin 8 12GHz bandwidth The noise figure gain and spurious free dynamic range of proposed structure are respectivelyabout 8dB 19dB and 110dB The obtained results are valuable and pleasant in comparison with the results of the othercommon structures Keywords Microwave Photonic Electrooptic Switch Delay Line Optical Fiber

رضا صفيان

غلامرضا عسكري

ابوالقاسم زيدآبادي، اصغر غلامي