Title :
A highly linear frequency ramp generator based on a fractional divider phase-locked-loop
Author :
Musch, T. ; Rolfes, I. ; Schiek, B.
Author_Institution :
Inst. fur Hochfrequenztech., Ruhr-Univ., Bochum, Germany
Abstract :
A synthesizer based on a fractional divider concept for generating highly linear analog frequency ramps is presented. Numerical simulations promise a very good precision of such a ramp generator which has been proved by implementing a prototype synthesizer circuit in a FMCW-radar system. The simulations as well as the measurements obtained with the prototype circuit are shown.
Keywords :
CW radar; FM radar; frequency synthesizers; phase locked loops; radar equipment; ramp generators; FMCW-radar system; VCO; analog frequency ramps; fractional control logic; fractional divider phase-locked-loop; frequency ramp generator; highly linear; prototype circuit; quantizer; synthesizer; 1f noise; Bandwidth; Circuits; Frequency conversion; Linearity; Logic; Noise shaping; Phase locked loops; Synthesizers; Voltage-controlled oscillators;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.700076
