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:
Jul. 12, 2011

Filed:

Feb. 17, 2009
Applicants:

Takayuki Furuta, Yokosuka, JP;

Hiroshi Okazaki, Zushi, JP;

Shoichi Narahashi, Yokohama, JP;

Inventors:

Takayuki Furuta, Yokosuka, JP;

Hiroshi Okazaki, Zushi, JP;

Shoichi Narahashi, Yokohama, JP;

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

A non-reciprocal circuit device comprising a magnetic plate F; center conductors L, L, and Lthat are mutually insulated and disposed so as to intersect on magnetic plate F; a plane conductor Pthat is disposed facing the center conductors with magnetic plate Fplaced therebetween, the plane conductor being connected to first ends of all the center conductors; matching capacitors Cto Cthat have first ends grounded electrically and second ends connected to second ends of the center conductors; first matching circuits that have first ends connected to the second ends of the center conductors and second ends that are input/output ports; and a second matching circuit that has a first end connected to or integrated with the plane conductor and a second end grounded electrically.


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