Forming a frequency control component with a target effective capacitance range
AssigneeInternational Business Machines Corporation
InventorsMark A. Ferriss, Daniel J. Friedman, Bodhisatwa Sadhu, Alberto Valdes-Garcia
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Abstract
A voltage controlled oscillator comprises a negative resistance, a first inductor, a fixed capacitor, and a frequency control component. The frequency control component comprises at least one varactor and at least a second inductor connected in series with the at least one varactor. A magnitude of an inductance of the second inductor is selected such that the frequency control component has an effective capacitance range larger than a capacitance range of the at least one varactor.
Claims20
A method of manufacturing a frequency control component, comprising:
- forming the frequency control component;
- providing at least one varactor in the frequency control component, the at least one varactor having an associated capacitance range;
- selecting a target effective maximum to minimum capacitance range for the frequency control component, the target effective capacitance range for the frequency control component being larger than the capacitance range of the at least one varactor;
- providing at least one inductor in series with the at least one varactor in the frequency control component;
- selecting a magnitude of an inductance of the at least one inductor such that the frequency control component has the target effective capacitance range;
- and
- connecting the at least one inductor in series with the at least one varactor such that the frequency control component has the target effective capacitance range;
- wherein selecting the magnitude of inductance of the at least one inductor is based on a quality factor of the at least one varactor.
Dependencies are inferred from the claim text.