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.

Date of Patent:
May. 24, 2016

Filed:

Jul. 08, 2013
Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventors:

Kazunari Kawahata, Kyoto, JP;

Hiroshi Nishida, Kyoto, JP;

Hiroshi Nishikawa, Kyoto, JP;

Toshiya Kawate, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/50 (2006.01); H01Q 5/00 (2015.01); H01Q 5/321 (2015.01); H04B 1/04 (2006.01); B81B 7/02 (2006.01); H04W 52/02 (2009.01); H01Q 5/335 (2015.01);
U.S. Cl.
CPC ...
H01Q 1/50 (2013.01); B81B 7/02 (2013.01); H01Q 5/321 (2015.01); H01Q 5/335 (2015.01); H04B 1/0458 (2013.01); H04W 52/0209 (2013.01);
Abstract

Provided is a MEMS module that includes a MEMS element having a first capacitor electrode that can be displaced, a second capacitor electrode that opposes the first capacitor electrode, and driving electrodes that cause the first capacitor electrode to be displaced. The driving electrodes are connected to a control unit that applies a driving voltage to the driving electrodes and monitor terminals for detecting power. Thus, an element for monitoring power is not needed and a MEMS module, a variable reactance circuit and an antenna device are provided that are capable of realizing smaller size and lower loss.


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