Title:
無線アンテナ、無線通信システム
Document Type and Number:
Japanese Patent JP6387314
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless antenna which allows for formation of a service area easily at a low cost.SOLUTION: A wireless antenna 100 includes a cable-like waveguide 110, constituted of a core formed of a dielectric, and a coating part formed of a dielectric on the outer periphery of the core. The dielectric constant of the core is larger than that of the coating part, and a part of the waveguide 110 can function as a radiation part 110c for radiating electromagnetic waves, when it is held while being bent so that the electromagnetic waves are radiated. When the bent state is eliminated, the part of the waveguide 110 where the bent state is eliminated loses the function as the radiation part 110c and functions as a waveguide.SELECTED DRAWING: Figure 1
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Inventors:
Kunihiro Kawai
Koji Okazaki
Shoichi Narahashi
Atsushi Fukuda
Yoshiaki Taruzawa
High Takuma Takuma
Koji Okazaki
Shoichi Narahashi
Atsushi Fukuda
Yoshiaki Taruzawa
High Takuma Takuma
Application Number:
JP2015055732A
Publication Date:
September 05, 2018
Filing Date:
March 19, 2015
Export Citation:
Assignee:
Ntt docomo, Inc.
International Classes:
H01Q13/24; H01P3/16; H04B5/00
Domestic Patent References:
| JP4526140B1 | ||||
| JP58166804A | ||||
| JP4814595B1 | ||||
| JP5112754A | ||||
| JP5983105A | ||||
| JP2007248315A | ||||
| JP2017535210A |
Foreign References:
| DE3107112A1 | ||||
| US2794959 | ||||
| US3703690 |
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro
Yukio Nakamura
Yoshimura Munehiro