Design and Simulation of an S Band Frequency Synthesizer for Satellite Communication Systems

This paper describes the design and the optimization of microwave integer-N frequency synthesizer used in transceivers for satellite application capable to process in S band [2]–[4] GHz frequencies. The optimization and the choice of the loop filter parameters are a very critical part of the frequency synthesizer. The optimized principle is based on the search for the best compromise between spectral purity and acquisition time to meet the defined applications requirements. Through different simulations and frequencies comparison, the performance and effectiveness of the proposed design are demonstrated.