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:
Nov. 19, 2019
Filed:
Jun. 16, 2016
Denso Corporation, Kariya, Aichi-pref., JP;
Seishin Mikami, Kariya, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A small antenna includes: a first element having a pair of conductors with a power feeding point; and a second element as a conductor arranged to sandwich a dielectric body. A part of the first and second elements has an inductance shape. A first resonance mode with a same current direction of the first element as the second element has a first resonant frequency. A second resonance mode with an opposite current direction of the first element to the second element has a second resonant frequency. A length from each power feeding point to the inductance shape is determined to hold the first resonant frequency within a range from a frequency slightly higher than the second resonant frequency to a high anti-resonant frequency of the second resonance mode, or a range from a frequency slightly lower than the second resonant frequency to a low anti-resonant frequency of the resonance mode.