Title:
UNDERWATER RADIO COMMUNICATION DEVICE
Document Type and Number:
Japanese Patent JP2023155540
Kind Code:
A
Abstract:
To provide a device capable of realizing underwater wireless communication.SOLUTION: An underwater radio communication device includes a host device 1 that transmits radio waves with a frequency within a band of 50 to 500 MHz, and an underwater device 2 that receives radio waves. The host device 1 and the underwater device 2 respectively have underwater antennas 21 and 22, and the conductive elements of the underwater antennas 21 and 22 have a length obtained by dividing half the wavelength of the radio wave by the dielectric constant of water to the 1/2 power.SELECTED DRAWING: Figure 1
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Inventors:
NOMI MOTOHIKO
WAKITA TOSHIAKI
WAKITA TOSHIAKI
Application Number:
JP2022064913A
Publication Date:
October 23, 2023
Filing Date:
April 11, 2022
Export Citation:
Assignee:
EBARA CORP
International Classes:
H01Q1/04; B63C11/00; B63C11/48; H01Q9/26; H01Q9/42; H01Q13/08; H01Q13/10; H04B11/00
Attorney, Agent or Firm:
Tetsuya Hirosawa
Isamu Watanabe
Goto Manabu
Mitsuhiro Kanazawa
Isamu Watanabe
Goto Manabu
Mitsuhiro Kanazawa