公开(公告)号：US09680204B2

公开(公告)日：2017-06-13

申请号：US14222504

申请日：2014-03-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Yutaka Aoki ,  Shigeru Yagi ,  Kaoru Yoshida

IPC: H01Q1/38 ,  H01Q1/24 ,  H01Q1/27 ,  H01Q5/378 ,  H01Q5/385 ,  H01Q1/40 ,  H01Q1/22

CPC classification number: H01Q1/273 ,  H01Q1/2283 ,  H01Q1/243 ,  H01Q5/378 ,  H01Q5/385

Abstract: An antenna device of the present invention includes an antenna element which transmits or receives an electromagnetic wave having a specific frequency by being supplied with electric power, a conductive element which is formed of a conductive material, arranged so as to be spaced apart from and face the antenna element, and serves as a parasitic element, and a housing having a sealed space therein. The antenna element is provided inside the housing, and the conductive element is provided on outer surface of the housing, or in inner part of the housing, or in a mount member by which the housing is worn on a human body, or in a holding member for holding the housing; the conductive element is electromagnetically coupled to the antenna element, resonates with the specific frequency; and transmits or receives the electromagnetic wave.

公开(公告)号：US09837700B2

公开(公告)日：2017-12-05

申请号：US14637981

申请日：2015-03-04

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Shigeru Yagi ,  Youichi Ushigome

IPC: H01Q9/04 ,  H01Q1/22 ,  H01Q7/00

CPC classification number: H01Q1/2216 ,  H01Q7/00 ,  H01Q9/0428

Abstract: An antenna device of the present invention includes, in one aspect: a patch antenna having a resonant frequency at a first frequency; and a loop antenna having a resonant frequency at a second frequency that is different from the first frequency. A loop length of the loop antenna is such that standing waves are generated in the loop antenna when the loop antenna receives radio waves of the first frequency, and the patch antenna is disposed so as to magnetically couple with the loop antenna.