DualMode-Resonator: Novel VCO design with significantly reduced

25.04.2008

The invention combines sufficiently high quality performance and inexpensive yet robust oscillator design capable of establishing high quality wireless links. The key features of the dualMode-Resonator developed by the group of Prof. Dr. Ing. Holger Heuermann are Reduction of phase-noise by 6dB at 2.5GHz The internal phase noise is reduced while taking into account both the even and odd mode during VCO design phase. The dual-mode design enables a broadband reduction of the phase noise by ca. 6dB. Because of this the transmission quality is enhanced at reduced power consumption. The effective Q-factor of Dual-Mode VCO is about twice that of a classical VCO. CMOS-compatible design The dualMode-Resonator can be easily realized in CMOS while the inventors strong background in CMOS applications was a driving force during development of the dual-mode VCO. A prototype in SMD-techniques is characterised showing the calculated win in phase noise while a the dualMode-Resonator in GaAs-technology is also under investigation.

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