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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 7
Adv. Radio Sci., 7, 243–247, 2009
https://doi.org/10.5194/ars-7-243-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 7, 243–247, 2009
https://doi.org/10.5194/ars-7-243-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.

  19 May 2009

19 May 2009

An X-Band low-power and low-phase-noise VCO using bondwire inductor

K. Hu, F. Herzel, and J. C. Scheytt K. Hu et al.
  • IHP GmbH, Im Technologiepark 25, 15236 Frankfurt (Oder), Germany

Abstract. In this paper a low-power low-phase-noise voltage-controlled-oscillator (VCO) has been designed and, fabricated in 0.25 μm SiGe BiCMOS process. The resonator of the VCO is implemented with on-chip MIM capacitors and a single aluminum bondwire. A tail current filter is realized to suppress flicker noise up-conversion. The measured phase noise is −126.6 dBc/Hz at 1 MHz offset from a 7.8 GHz carrier. The figure of merit (FOM) of the VCO is −192.5 dBc/Hz and the VCO core consumes 4 mA from a 3.3 V power supply. To the best of our knowledge, this is the best FOM and the lowest phase noise for bondwire VCOs in the X-band. This VCO will be used for satellite communications.

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