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. 12, 2016
Filed:
Dec. 04, 2014
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventor:
Minoru Iwanaga, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03C 1/52 (2006.01); H04B 1/10 (2006.01); H03H 7/38 (2006.01); H04B 1/04 (2006.01); H03C 3/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/109 (2013.01); H03H 7/38 (2013.01); H04B 1/0458 (2013.01); H03H 2007/386 (2013.01);
Abstract
An antenna matching device includes an antenna terminal connected to an antenna and an RF terminal connected to an RF circuit. The antenna terminal and the RF terminal are connected to each other through a first transmission path only via an inductor. The antenna terminal and the RF terminal are connected to each other through a second transmission path only via an SPST switch. By switching between the open state and the closed state of the switch in accordance with the frequency of an RF signal, the first transmission channel or the second transmission channel is selected.