Title:
WIRELESS DEVICE
Document Type and Number:
Japanese Patent JP2018121126
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress focus effect for unnecessary signals, while maintaining focus effect for specific signals.SOLUTION: A wireless device includes a RF signal circuit, an antenna, and a focus section. The focus section has at least a first region and a second region, where one region transmits radio waves, and the other region intercepts radio waves or changes the phase thereof. In the plan view from the antenna, the first region has circular shape. In the plan view from the antenna, the second region has annular shape having the diameter of the first region as bore diameter. The antenna exists on the medial axis of the circle of the first region. In the plan view from the first region, the RF signal circuit is astigmatic symmetry with the medial axis of the first region. At least a part of the RF signal circuit is perpendicular to the medial axis and included in the orthograph of the first region for the plane where the RF signal circuit exists.SELECTED DRAWING: Figure 1
Inventors:
AKITA KOJI
TSUTSUMI YUKAKO
TSUTSUMI YUKAKO
Application Number:
JP2017009752A
Publication Date:
August 02, 2018
Filing Date:
January 23, 2017
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H01Q1/48; H01Q19/06; H01Q15/02
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Takashi Katagiri
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Takashi Katagiri
Previous Patent: A wireless communication device and a telecommunications system
Next Patent: Radio equipment
Next Patent: Radio equipment