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:
May. 22, 2012
Filed:
Jul. 03, 2007
Applicants:
Kenji Hayashi, Kumagaya, JP;
Masayuki Uchida, Tottori-ken, JP;
Inventors:
Kenji Hayashi, Kumagaya, JP;
Masayuki Uchida, Tottori-ken, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/46 (2006.01); H01P 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diplexer circuit comprising a common terminal, a low-frequency-side terminal, a high-frequency-side terminal, a low-frequency-side path comprising a low-frequency filter disposed between the common terminal and the low-frequency-side terminal, and a high-frequency-side path comprising a high-frequency filter disposed between the common terminal and the high-frequency-side terminal, the low-frequency filter comprising a first transmission line series-connected to the low-frequency-side path and a capacitor parallel-connected to part of the first transmission line.