A Highly Linear Frequency Ramp Generator based on a Fractional Divider Phase-Locked-Loop

Thomas Musch, Ilona Rolfes, Burkhard Schiek †

IEEE Transactions on Instrumentation and Measurement, Vol. 48, No. 2, pp. 634-637, April 1999


A highly linear analog frequency ramp generator based on a fractional divider concept is presented. The frequency ramp linearity achievable in this fractional phase-locked-loop configuration is better than 10-4. This value is revealed by numerical simulations as well as by measurements performed. With a prototype synthesizer implemented in a FMCW-radar system suitable for distance and velocity measurements

[IEEE Library]

tags: radar