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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.:

US 11081799 B1

PDFFull Text
Date of Patent:
Aug. 03, 2021

Filed:

Feb. 27, 2019

Antenna device

Applicant:

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

Inventors:

Noboru Kato, Nagaokakyo, JP;

Masahiro Ozawa, Nagaokakyo, JP;

Assignee:

MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;

Attorney:

Arent Fox LLP

Primary Examiner:

Daniel I Walsh

Int. Cl.
CPC ...
H01Q 11/12 (2006.01); G06K 7/10 (2006.01); H01Q 9/06 (2006.01); H01Q 25/00 (2006.01); H01Q 3/24 (2006.01); H01Q 1/24 (2006.01); H01Q 1/22 (2006.01); H01Q 1/50 (2006.01); H04B 5/02 (2006.01); H01Q 1/38 (2006.01); H01Q 11/02 (2006.01); H01Q 5/35 (2015.01); H03H 7/00 (2006.01); H01P 3/08 (2006.01);
U.S. Cl.
CPC ...
H01Q 11/12 (2013.01); G06K 7/10 (2013.01); H01Q 1/2216 (2013.01); H01Q 1/24 (2013.01); H01Q 1/38 (2013.01); H01Q 1/50 (2013.01); H01Q 5/35 (2015.01); H01Q 9/065 (2013.01); H01Q 11/02 (2013.01); H04B 5/02 (2013.01); H01P 3/085 (2013.01); H01Q 3/24 (2013.01); H01Q 25/001 (2013.01); H03H 7/00 (2013.01);
Abstract

An antenna device is provided that can be designed easily and includes a flat antenna of which communication characteristics do not change significantly even when there exist metallic objects or the like in the surroundings. Moreover, the flat antenna is provided with an antenna-side signal line path conductor, an antenna-side first ground conductor, a matching circuit part, and an antenna-side connector part which are provided in an antenna-side insulator. The antenna device further includes a signal transmission cable that is provided with a radiation area setting part in the vicinity of a cable-side connector part. The antenna device is designed such that, by connecting the antenna-side connector part and the cable-side connector part to each other, substantially the entire surface of the flat antenna serves as a radiation part that radiates electromagnetic waves.

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