Back to results
US 2016/0204765 A1Published application
Boosting varactor capacitance ratio
AssigneeInternational Business Machines Corporation
InventorsMark A. Ferriss, Daniel J. Friedman, Bodhisatwa Sadhu, Alberto Valdes-Garcia
Life of this patent
Estimating the term…
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.
Claims11
A method comprising:
- selecting a target effective maximum to minimum capacitance range for a frequency control component comprising at least one varactor, the target effective capacitance range for the frequency control component being larger than a capacitance range of the at least one varactor;
- forming the frequency control component by providing at least one inductor in series with the at least one varactor;
- and
- selecting a magnitude of an inductance of the at least one inductor such that the frequency control component has the target effective capacitance range.
1 more element
Dependencies are inferred from the claim text.