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:
Dec. 03, 2019

Filed:

Aug. 24, 2018
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Yasumitsu Ban, Kawasaki, JP;

Manabu Kai, Yokohama, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 9/28 (2006.01); H01Q 1/44 (2006.01); H01Q 1/48 (2006.01); H04B 1/40 (2015.01);
U.S. Cl.
CPC ...
H01Q 1/44 (2013.01); H01Q 1/48 (2013.01); H04B 1/40 (2013.01);
Abstract

An antenna includes, a radiation conductor that is fed by one end, has another end serving as an opened end, and emits or receives radio waves, a first grounding conductor that is installed at the one end side of the radiation conductor and is grounded, a second grounding conductor that is electrically coupled with the first grounding conductor and is formed in a cylindrical shape around the radiation conductor with an elongation direction of the radiation conductor as an axial direction. At least one of the first grounding conductor and the second grounding conductor is electric-field coupled with a conductor where the antenna is installed.


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