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:
Nov. 02, 2010
Filed:
May. 19, 2010
Takashi Kawanami, Oumihachiman, JP;
Takashi Kawanami, Oumihachiman, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A nonreciprocal circuit device attenuates unnecessary waves having a higher frequency than that of a fundamental wave, without increasing insertion loss. The nonreciprocal circuit device in the form of a 2-port type isolator includes a ferrite on which a first central electrode and a second central electrode are arranged to cross each other and so as to be electrically insulated from each other. A bypass circuit including a phase shifter and a filter is provided between an input port and an output port, and the bypass circuit does not allow signals in the fundamental wave band to pass through and also attenuates harmonics.