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Paper Abstract and Keywords
Presentation 2021-11-12 14:45
Formulation, Validation, and Extensibility Study on the Impedance of Underwater Dipole Antennas
Takuma Matsushita, Takashi Kawamura, Toshinori Kondo, Futoshi Takeuchi, Yasuhiro Matsui, Takashi Takinami, Kazuhiro Hongo, Akihiro Horii, Kazunobu Ohkuri (Sony Group Corp.)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes the theoretical formulation for half sheath dipole antenna(HSDA) and adaption area of this formulation with comparison between simulation results and formulation results. HSDA which conductor length is 2m and sheath length is 1m could be defined as small antenna electrically in the seawater at 10kHz because current in the sheath is constant, current out of sheath is operated as Hertz dipole antenna, and electric field near antenna is electrostatic. Therefore, HSDA is replaced with equivalent circuit and each element is calculated with electrostatic analysis, so that impedance of HSDA was formulated theoretically. Accuracy of this formulation and adaption area is indicated by comparison between HFSS simulation results and formulation. Additionally, this formulation method is adopted to full sheath dipole antenna(FSDA). Each element consisting FSDA impedance is calculated with electrostatic analysis for inside sheath because electric field in the sheath is dominant. This electrostatic formulation for FSDA is also found effective by comparing with simulation and formulation results.
Keyword (in Japanese) (See Japanese page) 
(in English) Under seawater communication / half sheath dipole antenna / impedance / formulation / / / /  
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 WPT UWT  
Conference Date 2021-11-12 - 2021-11-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To UWT 
Conference Code 2021-11-WPT-UWT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Formulation, Validation, and Extensibility Study on the Impedance of Underwater Dipole Antennas 
Sub Title (in English)  
Keyword(1) Under seawater communication  
Keyword(2) half sheath dipole antenna  
Keyword(3) impedance  
Keyword(4) formulation  
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1st Author's Name Takuma Matsushita  
1st Author's Affiliation Sony Group Corporation (Sony Group Corp.)
2nd Author's Name Takashi Kawamura  
2nd Author's Affiliation Sony Group Corporation (Sony Group Corp.)
3rd Author's Name Toshinori Kondo  
3rd Author's Affiliation Sony Group Corporation (Sony Group Corp.)
4th Author's Name Futoshi Takeuchi  
4th Author's Affiliation Sony Group Corporation (Sony Group Corp.)
5th Author's Name Yasuhiro Matsui  
5th Author's Affiliation Sony Group Corporation (Sony Group Corp.)
6th Author's Name Takashi Takinami  
6th Author's Affiliation Sony Group Corporation (Sony Group Corp.)
7th Author's Name Kazuhiro Hongo  
7th Author's Affiliation Sony Group Corporation (Sony Group Corp.)
8th Author's Name Akihiro Horii  
8th Author's Affiliation Sony Group Corporation (Sony Group Corp.)
9th Author's Name Kazunobu Ohkuri  
9th Author's Affiliation Sony Group Corporation (Sony Group Corp.)
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Speaker
Date Time 2021-11-12 14:45:00 
Presentation Time 25 
Registration for UWT 
Paper #  
Volume (vol) IEICE-121 
Number (no)  
Page  
#Pages IEICE-5 
Date of Issue  


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