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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.

Patent No.:

US 10505243 B1

PDFFull Text
Date of Patent:
Dec. 10, 2019

Filed:

Oct. 17, 2017

Balun

Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Hiroya Suzuki, Tokyo, JP;

Yuta Ashida, Tokyo, JP;

Noriaki Ootsuka, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Dean O Takaoka

Int. Cl.
CPC ...
H01P 5/10 (2006.01); H03H 7/42 (2006.01); H01P 1/02 (2006.01); H01Q 5/335 (2015.01); H02M 7/48 (2007.01); H03B 5/12 (2006.01);
U.S. Cl.
CPC ...
H01P 1/022 (2013.01); H01Q 5/335 (2015.01); H02M 2007/4815 (2013.01); H03B 5/1265 (2013.01);
Abstract

A balun includes an unbalanced port, a first balanced port, a second balanced port, a main line, a subline, a capacitor, and an impedance matching section. The subline is configured to be electromagnetically coupled to the main line. The main line has a first end and a second end opposite to each other. The subline has a first end and a second end opposite to each other. The capacitor is provided between the first end of the main line and the unbalanced port. The impedance matching section is provided between the second end of the subline and the second balanced port. The second end of the main line is connected to a ground. The first end of the subline is connected to the first balanced port.

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