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:
Jun. 08, 2021
Filed:
Nov. 29, 2017
Phoenix Solution Co., Ltd., Kanazawa, JP;
Hisao Kanaoka, Kanazawa, JP;
Shiro Sugimura, Kanazawa, JP;
Tatsuji Niwata, Kanazawa, JP;
Masakazu Fujii, Kanazawa, JP;
PHOENIX SOLUTION CO., LTD., Ishikawa, JP;
Abstract
[Problem] To provide an antenna for an RF tag and an RF tag with which a communication distance between reading devices can be extended. [Solution] This antenna for an RF tag is provided with: an insulation member; a waveguide elementprovided on one side of the insulation member; a waveguide elementdisposed so as to face the waveguide elementand provided on the other side of the insulation member; a power supply unithaving one end electrically connected to the waveguide element; and a short-circuit unithaving one end electrically connected to the wave guide elementand the other end electrically connected to the waveguide element, wherein the permittivity of an insulation region Aon the waveguide elementside among regions sandwiched between the waveguide elementand the waveguide elementis different from the permittivity of an insulation region Aon the waveguide elementside among said regions.