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Paper Abstract and Keywords
Presentation 2022-03-01 14:05
Formulation and Validation of the Transmission Factor Between Two Electrically Small Dipole Antennas Immersed in Seawater
Takashi Kawamura, Takuma Matsushita, Toshinori Kondo, Futoshi Takeuchi, Kazuhiro Hongo, Yasuhiro Matsui, Takashi Takinami, Akihiro Horii, Kazunobu Ohkuri (Sony Group)
Abstract (in Japanese) (See Japanese page) 
(in English) As one of the theoretical approaches to reveal antenna behavior in the sea, it has been reported that the impedances of electrically small dipole antennas can be formulated by quasi-electrostatic analysis. In this paper, the transmission factors, which is the maximum power efficiency between two antennas, are derived for both a half-sheath dipole antenna (HSDA) with electrodes partially exposed to seawater and a full-sheath dipole antenna (FSDA) with electrodes completely covered with an insulator through the same approach as the impedance derivation. Derived formulas indicate that HSDA shows larger transmission factor than FSDA. The comparison with the three-dimensional electromagnetic field simulation shows that the derived formulas are valid regardless of the positional relationship between the two antennas.
Keyword (in Japanese) (See Japanese page) 
(in English) Underwater dipole antenna / Electrically small antenna / Lossy medium / Underwater wireless communication / Transmission factor / / /  
Reference Info. IEICE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee UWT  
Conference Date 2022-03-01 - 2022-03-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Underwater Wireless Technology 
Paper Information
Registration To UWT 
Conference Code 2022-03-UWT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Formulation and Validation of the Transmission Factor Between Two Electrically Small Dipole Antennas Immersed in Seawater 
Sub Title (in English)  
Keyword(1) Underwater dipole antenna  
Keyword(2) Electrically small antenna  
Keyword(3) Lossy medium  
Keyword(4) Underwater wireless communication  
Keyword(5) Transmission factor  
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Keyword(7)  
Keyword(8)  
1st Author's Name Takashi Kawamura  
1st Author's Affiliation Sony Group Corporation (Sony Group)
2nd Author's Name Takuma Matsushita  
2nd Author's Affiliation Sony Group Corporation (Sony Group)
3rd Author's Name Toshinori Kondo  
3rd Author's Affiliation Sony Group Corporation (Sony Group)
4th Author's Name Futoshi Takeuchi  
4th Author's Affiliation Sony Group Corporation (Sony Group)
5th Author's Name Kazuhiro Hongo  
5th Author's Affiliation Sony Group Corporation (Sony Group)
6th Author's Name Yasuhiro Matsui  
6th Author's Affiliation Sony Group Corporation (Sony Group)
7th Author's Name Takashi Takinami  
7th Author's Affiliation Sony Group Corporation (Sony Group)
8th Author's Name Akihiro Horii  
8th Author's Affiliation Sony Group Corporation (Sony Group)
9th Author's Name Kazunobu Ohkuri  
9th Author's Affiliation Sony Group Corporation (Sony Group)
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Speaker
Date Time 2022-03-01 14:05:00 
Presentation Time 25 
Registration for UWT 
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