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:
Jul. 31, 2007
Filed:
Oct. 16, 2006
Yasuaki Namura, Kanagawa, JP;
Yasuaki Namura, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
To provide a high frequency switch capable of dealing with multiple frequency bands without having plurality of switch circuits. A first diode that conducts due to a bias current when a first switch is closed is interposed between a first signal terminal and a second signal terminal. A strip line with the electrical length Lis connected to the cathode of the first diode, the other end being grounded. At a position with the distance Lfrom one end of the strip line, a capacitor and a second switch are connected to be equivalently grounded when a second switch is closed. The strip line resonates with the electrical length Lwhen the second switch is opened, and resonates with the electrical length Lwhen the second switch is closed.