The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 15, 2016

Filed:

Sep. 22, 2015
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Hao Li, Poing, DE;

Jidan Al-Eryani, Deisenhofen, DE;

Herbert Knapp, Munich, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H01P 3/08 (2006.01);
U.S. Cl.
CPC ...
H03B 5/1256 (2013.01); H01P 3/081 (2013.01); H03B 5/12 (2013.01); H03B 5/1243 (2013.01); H03B 5/1259 (2013.01);
Abstract

The disclosure provides an oscillator circuit for a voltage controlled oscillator. The oscillator circuit includes first and second coupled transmission lines, wherein the oscillator circuit is configured to provide a variable load impedance at a first end of a signal line of the first transmission line such that a variable inductance is provided between first and second ends of a signal line of the second transmission line in dependence on the variable load impedance. The oscillator circuit is configured to adjust the variable inductance provided between the first and second ends of the signal line of the second transmission line by adjusting the variable load impedance provided at the first end of the signal line of the first transmission line, wherein the variable inductance provided between the first and second ends of the signal line of the second transmission line constitutes a frequency determining element of the oscillator circuit.


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