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:
Oct. 26, 2021
Filed:
Jul. 03, 2018
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Ai-ichiro Sasaki, Atsugi, JP;
Junichi Kodate, Atsugi, JP;
Jumpei Fuke, Toyota, JP;
Hiroki Okada, Toyota, JP;
Hiroko Okuyama, Toyota, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A dual loop antenna is provided which can clearly set a boundary of a communication area and create a well-balanced communication area. A dual loop antenna includes a first loop antenna and a second loop antenna. The first loop antenna and the second loop antenna are formed on an x-y plane. The center of the first loop antenna and the center of the second loop antenna are located at positions on an x-axis at the same distance from the point of origin being the center of the dual loop antenna. A phase difference between currents flowing on the first loop antenna and the second loop antenna, respectively, is a value in a range from 130 degrees to 230 degrees.