Modeling and Analysis of the Phase Noise in a Frequency Synthesizer for a Radar System

Kim, Dong-Sik; Kim, Min-Cheol; Lee, Su-Ho; Jeong, Myeong-Deuk; Kwon, Ho-Sang

doi:2011.14.5.818

J. KIMS Technol > Volume 14(5); 2011 > Article

Journal of the Korea Institute of Military Science and Technology 2011;14(5):818-824.
DOI: https://doi.org/10.9766/KIMST.2011.14.5.818

Modeling and Analysis of the Phase Noise in a Frequency Synthesizer for a Radar System

Dong-Sik Kim, Min-Cheol Kim, Su-Ho Lee, Myeong-Deuk Jeong, Ho-Sang Kwon

¹Department of Microwave Lab. LIGNEX1
²

레이더용 주파수합성기의 위상잡음 모델링 및 분석

김동식, 김민철, 이수호, 정명득, 권호상

¹LIGNEX1 초고주파연구센터
²국방과학연구소

Abstract

In this paper, we proposed a phase noise model of a frequency synthesizer for a radar system. Especially, it was proposed a phase noise model in a DAS(Direct Analog Synthesizer) and a frequency up converter system using Leeson's model. The proposed phase noise model was derived from the measurement data of model 1 and evaluated by adapting to model 2 and model 3 frequency synthesizers. The prediction phase noise by modeling was totally matched to the measured data and the effective analysis of the phase noise was done in a frequency synthesizer and a frequency converter of radar system.

Key Words: Phase Noise, DAS, Frequency Synthesizer