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. 13, 2009
Filed:
Jan. 19, 2006
Takanori Ikuta, Kyoto, JP;
Wataru Koga, Kyoto, JP;
Hiroki Kan, Kyoto, JP;
Yuuko Yokota, Kyoto, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
Terminal electrodesfor carrying a high frequency deviceare formed on a surface of a circuit board having its reverse surface covered with a reverse surface conductor layer, and a plurality of signal linesfor exchanging a signal between the high frequency deviceand an external circuit are formed thereon. The terminal electrodeis arranged at the center of the circuit board, and the signal linesradially extends from the terminal electrode. Electromagnetic interference between the signal linescan be reduced, so that out-of-band attenuation characteristics and isolation characteristics can be satisfactorily exhibited in a case where the high frequency deviceis a duplexer.