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A 94 GHz programmable frequency divider with inductive peaking for wideband and highly stable frequency synthesizers

: Delden, M. van; Pohl, N.; Aufinger, K.; Musch, T.


Institute of Electrical and Electronics Engineers -IEEE-; Gallium Arsenide Application Symposium Association -GAAS-; IEEE Electron Devices Society:
12th European Microwave Integrated Circuits Conference, EuMIC 2017 : 9-12 October 2017, Nuremberg, Germany
Piscataway, NJ: IEEE, 2017
ISBN: 978-2-87487-048-4
ISBN: 978-1-5386-3966-5
European Microwave Integrated Circuits Conference (EuMIC) <12, 2017, Nuremberg>
European Microwave Week (EuMW) <2017, Nuremberg>
European Microwave Conference (EuMC) <47, 2017, Nuremberg>
Fraunhofer FHR ()

We present a fully programmable frequency divider in two different versions operating at input frequencies from DC to 94 GHz and 92 GHz, respectively, for the use in wideband and highly stable millimeter-wave frequency synthesizers. Using a parallel interface the division factors can be programmed to all integer values between 12 and 259. The high input speed in conjunction with programmability is achieved by a dual-modulus concept utilizing gates in emitter-coupled logic with inductive shunt peaking and by merging logic functions into flip-flops. The two versions utilize different differential spiral inductors. The frequency dividers were realized in a SiGe BiCMOS technology with fT = 250 GHz and are draining a current of 120 mA from a 3.3 V supply.