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:
Dec. 16, 2008
Filed:
Aug. 13, 2007
Applicants:
Takanori Uejima, Moriyama, JP;
Naoki Nakayama, Sakai, JP;
Shinya Watanabe, Okayama, JP;
Inventors:
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/10 (2006.01); H01P 5/12 (2006.01); H01P 1/15 (2006.01); H03H 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high-frequency switching module in which a high-frequency switch including a diode, which functions as a switching device, and a high-frequency filter including inductors and a capacitor are integrated with each other. The inductor defining a π-type high-frequency filter is connected directly and in series to the diode. By inserting the inductor, the cut-off frequency of a Chebyshev-type low-pass filter circuit produced when the diode is turned ON can be shifted to a lower frequency side, and also, the ripple can be suppressed to a small level.