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. 02, 2010

Filed:

May. 21, 2007
Applicants:

Tamio Kawaguchi, Kawasaki, JP;

Fumihiko Aiga, Yokohama, JP;

Hiroyuki Kayano, Fujisawa, JP;

Noritsugu Shiokawa, Yokohama, JP;

Tatsunori Hashimoto, Yokohama, JP;

Inventors:

Tamio Kawaguchi, Kawasaki, JP;

Fumihiko Aiga, Yokohama, JP;

Hiroyuki Kayano, Fujisawa, JP;

Noritsugu Shiokawa, Yokohama, JP;

Tatsunori Hashimoto, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 1/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

In resonant elementstoconstituting a resonant circuit, an uncontrolled cross coupling which exists between two resonant elements is controlled by using a coupling elementwhich is newly arranged between the resonant elements, whereby it is possible to create a state where two resonant elements are not coupled with each other or a state where the amount of the coupling is reduced, which states are difficult to be realized on a plane. As a result, it is possible to improve characteristics of a planar filter.


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