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. 12, 2009
Filed:
Jul. 26, 2006
Applicant:
Hiroshi Mizutani, Kanagawa, JP;
Inventor:
Hiroshi Mizutani, Kanagawa, JP;
Assignee:
NEC Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 1/15 (2006.01);
U.S. Cl.
CPC ...
Abstract
The switch circuitincludes a common terminal(common port), a plurality of branch terminals, a common path Pconnecting the common terminaland a diverging point N, branch paths P, Pconnecting the diverging point N and the branch terminalsrespectively, distributed constant FETsrespectively provided in the branch paths P, P, and transmission linesprovided between the diverging point N on the branch paths P, Pand the distributed constant FETsrespectively. Here, the transmission linesare longer than 45% of Λ/4 but shorter than Λ/4, when Λ designates a propagation wavelength under an operating frequency.