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:
Mar. 10, 2026

Filed:

Jan. 17, 2023
Applicant:

Kuraray Co., Ltd., Kurashiki, JP;

Inventors:

Keisuke Ikeda, Kamisu, JP;

Tatsuya Sunamoto, Tokyo, JP;

Minoru Onodera, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Kurashiki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/12 (2006.01); H01Q 1/22 (2006.01); H01Q 1/32 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/1271 (2013.01);
Abstract

An antenna system includes: a laminate including a plurality of high-frequency permeable layers; and an antenna circuit board including a high-frequency insulating layer. n-th layer of the plurality of high-frequency permeable layers has a thickness Ln within a range of L±λ(10√ε). The n-th layer is at least one high-frequency permeable layer of the laminate. εdenotes a relative dielectric constant of the n-th layer; λ denotes a wavelength of the high-frequency wave that is incident on the laminate; and Ldenotes a thickness of the n-th layer where an intensity of a reflected wave from the laminate is minimized, the intensity being determined as an intensity of a composite wave of reflected waves from a front surface, a back surface, and joint interfaces of the laminate.


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