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.:
Date of Patent:
Jun. 28, 2011
Filed:
Apr. 24, 2008
Masatoshi Ishii, Kawasaki, JP;
Kazunori Yamanaka, Kawasaki, JP;
John D. Baniecki, Kawasaki, JP;
Akihiko Akasegawa, Kawasaki, JP;
Teru Nakanishi, Kawasaki, JP;
Masatoshi Ishii, Kawasaki, JP;
Kazunori Yamanaka, Kawasaki, JP;
John D. Baniecki, Kawasaki, JP;
Akihiko Akasegawa, Kawasaki, JP;
Teru Nakanishi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A resonance pattern () made of conductive material and having a circular plan shape is formed over the principal surface of a dielectric substrate. First and second virtual straight lines mutually crossing at a right angle are defined. A first input port () and a first output port () are electromagnetically coupled to the resonance pattern at two cross points between the first virtual straight line and an outer circumference line of the resonance pattern. A second input port () and a second output port () are electromagnetically coupled to the resonance pattern at two cross points between the second virtual straight line and the outer circumference line of the resonance pattern. A first inter-port waveguide () propagates a high frequency signal output to the first output port to the second input port.