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:
Jan. 15, 2013
Filed:
Jul. 14, 2011
Seigo Hino, Nagaokakyo, JP;
Yoshiki Yamada, Nagaokakyo, JP;
Seigo Hino, Nagaokakyo, JP;
Yoshiki Yamada, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A nonreciprocal circuit element includes first and second center electrodes. On a ferrite to which a direct-current magnetic field is applied from a permanent magnet, the first and second center electrodes are insulated and intersect. First and second ends of the first center electrode are connected to an input port and an output port, respectively. First and second ends of the second center electrode are connected to the output port and a ground port, respectively. A first matching capacitor and a resistor are connected between the input port and the output port. A second matching capacitor is connected between the output port and the ground port. A parallel resonant circuit is connected in parallel to the resistor. A coupling element is connected between the parallel resonant circuit and another parallel resonant circuit including the first center electrode and the first matching capacitor so as to the parallel resonant circuits.