Title :
Phase-locked loop based frequency synthesizer with chirp generation for FMCW secondary radar systems
Author :
Ussmueller, Thomas ; Weigel, Robert
Author_Institution :
Inst. for Electron. Eng., Friedrich-Alexander Univ. of Erlangen-Nuremberg, Erlangen, Germany
fDate :
Aug. 28 2010-Sept. 3 2010
Abstract :
In this paper a novel synthesizer has been shown which is optimized for secondary radar systems. It is based on a fractional-N phase-locked loop. Additional circuitry is necessary to generate the frequency ramp and minimize the associated spurs. The synthesizer has been implemented in a 0.18um SiGe BiCMOS process. Measurement results showed its suitability for high performance local positioning systems.
Keywords :
CW radar; FM radar; chirp modulation; frequency synthesizers; phase locked loops; FMCW secondary radar system; chirp generation; circuitry; frequency ramp; phase-locked loop based frequency synthesizer; positioning system; Conferences; Frequency modulation; Position measurement; Radar; Synthesizers; Wireless communication; Wireless sensor networks;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-7091-4
DOI :
10.1109/ICWITS.2010.5612292
