Title :
A high-performance stepped frequency synthesizer for synthetic aperture radar
Author :
Zhao, Guoqiang ; Tang, Li ; Zhang, Zhuo ; Sun, Houjun ; Lv, Xin
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
A C-band stepped frequency synthesizer for synthetic aperture radar (SAR) is presented in this paper. This frequency synthesizer, which is constituted by a Ping-Pong type with two PLL, has high performance such as fast hopping, high spur suppression and low phase noise. In this design, the output frequency range is 6.7~7.4GHz, and the step size is 10MHz with frequency agility less than 1us. Measurement results have shown that the output power is at least 9dBm, the spur suppression is below -70dBc and the phase noise at 100KHz offset from carrier is about -110dBc/Hz.
Keywords :
frequency agility; frequency synthesizers; phase noise; synthetic aperture radar; C-band stepped frequency synthesizer; PLL; SAR; fast hopping; frequency 6.7 GHz to 7.4 GHz; frequency agility; high spur suppression; high-performance stepped frequency synthesizer; low phase noise; ping-pong type; synthetic aperture radar; Bandwidth; Frequency synthesizers; Phase frequency detector; Phase locked loops; Phase noise; Time frequency analysis;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230386
