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:
Jun. 24, 2008
Filed:
Nov. 17, 2005
Tadayoshi Nakatsuka, Toyonaka, JP;
Masashi Miyagi, Takatsuki, JP;
Tadayoshi Nakatsuka, Toyonaka, JP;
Masashi Miyagi, Takatsuki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Switch sections composed of a plurality of FETstoandtoconnected in series are provided between input/output terminalsandand ground terminalsand, and between the input/output terminalsto. A plurality of gate bias resistorstotoare also provided. One terminal of each gate bias resistor is connected to a gate electrode of a corresponding one of the FETstoandto, while a control voltageandfor switching an ON state and an OFF state of the switch section is applied to the other terminal. Among the FETs included in each switch section, concerning the FETs, andto which signal power is applied when the switch section is in the OFF state, the gate bias resistors, andconnected to the gate electrodes are set to have a highest resistance value.