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:
Aug. 23, 2005
Filed:
Aug. 28, 2003
Applicants:
Hiroshi Kushitani, Izumisano, JP;
Yasushi Nagata, Kyoto, JP;
Takeo Yasuho, Neyagawa, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P001/15 ;
U.S. Cl.
CPC ...
Abstract
A frequency switch is configured with two FET switches. One end of a second FET switch is connected between an I/O port and a reception port and the other end is ground. A strip line is connected between the second FET switch and the I/O port, and has an electrical length equivalent to ¼ wavelength of a high frequency signal input from transmission port.