Title:
ELECTRIC WAVE TRANSMISSION DEVICE AND WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/002888
Kind Code:
A1
Abstract:
This electric wave transmission device comprises: an electronic instrument having a circuit board on which an electric wave transmission circuit is formed; and a dielectric layer. The electric wave transmission circuit has a high-frequency control unit, a feeder line, and an antenna. The high-frequency control unit feeds a high-frequency signal in one or more frequency bands through the feeder line to the antenna. The feeder line and the antenna are covered with the dielectric layer. The dielectric layer protects the electric wave transmission device in a usable state in a state of being in contact with water, sea water, an electrolytic solution, or a substance or a tissue containing a certain quantity of moisture. The wiring length of the feeder line is equal to or less than 35 mm.
Inventors:
ISOGAI RYOSUKE (JP)
YOSHIDA YOSHIFUMI (JP)
YOSHIDA YOSHIFUMI (JP)
Application Number:
PCT/JP2022/027434
Publication Date:
January 26, 2023
Filing Date:
July 12, 2022
Export Citation:
Assignee:
SEIKO GROUP CORP (JP)
International Classes:
H04B13/00; A61B1/00; H01Q1/04; H01Q1/40; H01Q1/42; H01Q9/30
Foreign References:
| JP2006297080A | 2006-11-02 | |||
| CN108448233A | 2018-08-24 | |||
| KR20210054729A | 2021-05-14 | |||
| JP2019530328A | 2019-10-17 | |||
| JP2021120931A | 2021-08-19 | |||
| JP2022080150A | 2022-05-27 | |||
| JP2009268797A | 2009-11-19 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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