2002 · 13 citations · 1 references
EngineeringElectrical EngineeringMicroelectronicsMicrowave EngineeringSemiconductor DevicesCmos Circuit DesignHigh-frequency Semiconductor DevicesIntegrated Circuit DesignMicrowave Integrated CircuitsMicrowave Semiconductor DevicesRadio-frequency Integrated CircuitsCapacitanceMicrowave DevicesMicrowave Integrated Circuit DesignMonolithic Microwave Integrated CircuitsSeries ResistanceSeries Resistance CompensationVaractor DiodesVaractor Tuning
An original method to increase the tuning range of a MMIC varactor diode is presented. An active circuit simulating a negative capacitance is connected to the varactor diode. This method allows to increase the varactor's tuning range more than ten times. A MMIC simulating a negative capacitance have been successfully fabricated and measured and we hope to be able to present measured results of a complete active varactor by the time of the symposium.
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