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Patent Searching and Data


Title:
ANTENNA DEVICE, COMMUNICATION DEVICE, AND COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/123263
Kind Code:
A1
Abstract:
[Problem] To make it possible to verify the state of a prescribed subject under conditions such as when the subject is moving, in a configuration where a device used by the prescribed subject is a communication device. [Solution] An antenna device equipped with: an antenna element configured from a conductor, having a cylindrical shape, and provided with a long, thin notch which extends in the axial direction in at least part of the lateral surface thereof; a capacitor which is installed between the end sections of the notch in the short direction so as to be substantially positioned in the center of the notch in the lengthwise direction; and a feed point provided on one end section side of the capacitor among the end sections of the notch in the short direction at a location separated from the capacitor toward one end section side among the end sections of the notch in the lengthwise direction.

Inventors:
KOZAKAI OSAMU (JP)
MITA HIROYUKI (JP)
KOBAYASHI SEIJI (JP)
HASHIGUCHI TAKAAKI (JP)
Application Number:
PCT/JP2017/039757
Publication Date:
July 05, 2018
Filing Date:
November 02, 2017
Export Citation:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01Q1/22; H01Q1/44; H01Q13/12; H04B1/03; H04B1/04; H04B7/06
Foreign References:
JPH03254209A1991-11-13
JPH06331736A1994-12-02
JPS5854703A1983-03-31
JPH04103748U1992-09-07
JPH11276516A1999-10-12
JPH0637994U1994-05-20
US20150070479A12015-03-12
Other References:
FUKASAWA, NORIKO ET AL.: "Evaluation of guidance system for visually disabled", PROCEEDINGS OF THE 6TH FORUM ON INFORMATION SCIENCE AND TECHNOLOGY, 2007, pages 485 - 488
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
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