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:
Mar. 22, 2016

Filed:

Nov. 05, 2012
Applicant:

Rf Micro Devices, Inc., Greensboro, NC (US);

Inventors:

Michael F. Zybura, Scotts Valley, CA (US);

Marcus Granger-Jones, Scotts Valley, CA (US);

Assignee:

RF Micro Devices, Inc., Greensboro, NC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01); H01F 21/00 (2006.01); H03H 7/42 (2006.01); H03H 7/01 (2006.01); H03H 7/09 (2006.01);
U.S. Cl.
CPC ...
H03H 7/42 (2013.01); H03H 7/0115 (2013.01); H03H 7/09 (2013.01); H03H 7/1775 (2013.01);
Abstract

In one embodiment, a balanced to unbalanced transformer utilizes a crossover configuration such that some portion of the secondary coil (inductor) is shared between two resonators (capacitors). Adding a first capacitor in parallel with a portion of the secondary inductor creates a first harmonic trap (filter), and also efficiently uses the secondary coil (inductor) as a resonating element. Adding a second capacitor which shares (crossover configuration) a portion of the secondary inductor with the first capacitor creates a second harmonic trap (filter), which may be tuned to the same harmonic as the first harmonic trap, or may be tuned to a different harmonic.


Find Patent Forward Citations

Zybura, Michael. (2016). Combined balun transformer and harmonic filter (U.S. Patent No. 9294067). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9294067

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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