Invention Grant
- Patent Title: Boosting varactor capacitance ratio
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Application No.: US15151786Application Date: 2016-05-11
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Publication No.: US10211779B2Publication Date: 2019-02-19
- Inventor: Mark A. Ferriss , Daniel J. Friedman , Bodhisatwa Sadhu , Alberto Valdes-Garcia
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Ryan, Mason & Lewis, LLP
- Agent Vazken Alexanian
- Main IPC: H03B5/12
- IPC: H03B5/12 ; H03B7/06 ; H03J3/18 ; H03J3/20 ; H03J3/22 ; H03J5/02 ; H03L7/099

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.
Public/Granted literature
- US20160285417A1 BOOSTING VARACTOR CAPACITANCE RATIO Public/Granted day:2016-09-29
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