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. 13, 2010
Filed:
Jan. 30, 2007
Shinya Watanabe, Yasu, JP;
Koji Furutani, Moriyama, JP;
Shinya Watanabe, Yasu, JP;
Koji Furutani, Moriyama, JP;
Murata Manufacturing Co., Ltd, Kyoto, JP;
Abstract
A FET switch enables an antenna input/output port connected to an antenna to connect to any of a port connected to a transmission signal input terminal and ports respectively connected to two reception signal output terminals by switching between the ports. After a transmission signal is input through the transmission signal input terminal and is then input from the port to the FET switch, harmonic distortion occurs and is output to the transmission signal input terminal side. A phase setting element connected to the port changes an impedance of the input side viewed from the port with respect to harmonics from an open state to a short-circuited state, so as to disperse the harmonics. Accordingly, harmonics returning to the port are greatly suppressed and minimized.