A fully integrated low phase noise voltage controlled oscillator (VCO) MMIC for millimeterwave applications was developed. The MMIC was implemented in an InGAP/GaAs heterojunction bipolar transistor (HBT) technology. This fully integrated VCO MMIC was successfully created by using a base-emitter junction varactor and microstrip lines. The VCO MMIC delivers an output power of 4.9 dBm at 31.6 GHz. Its measured phase noise at 1-MHz offset from the carrier is -121.6 dBc/Hz at an oscillation frequency of 31.6 GHz. It also provides a tuning range of 700 MHz with little variation in output power.
|International Journal of Microwave and Optical Technology
|Published - 2006 8月
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