Title :
A frequency agile synthesizer using DDS and PLL techniques for FMCW radar
Author :
Yingshen Zhu;Hui Zhang;Wei Hong
Author_Institution :
State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096, P. R. China
Abstract :
A frequency synthesizer using phase-locked loop (PLL) and direct digital synthesis (DDS) techniques for frequency modulated continuous-wave (FMCW) radar which has low phase noise is presented. Fast switching time and narrow channel spacing can be achieved by DDS. The modulation width of 850MHz, from 12.6GHz to 13.45GHz, is achieved. The phase noise of 13.4GHz frequency synthesizer at 1 MHz offset is -118.34dBc/Hz, the reference spur is better than -69dBc and the output power is over -3dBm.
Keywords :
"Frequency synthesizers","Phase noise","Phase locked loops","Passive filters","Radar","Band-pass filters"
Conference_Titel :
Microwave Conference (APMC), 2015 Asia-Pacific
Print_ISBN :
978-1-4799-8765-8
DOI :
10.1109/APMC.2015.7413219
