FDTD Analysis of Two-Dimensional Cavity-Backed Antenna for Subsurface Radar (Special Issue on the 1992 Symposium on Electromagnetic Theory)
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概要
- 論文の詳細を見る
The antennas for subsurface radar are usually covered with a conductiong cavity to prevent the radiation field from affecting the electromagnetic environment and to protect the received field from external noises. Furthermore, radiowave absorber is attached to the interior wall of the cavity in order to suppress the multiple reflections in the cavity. In this paper, the characteristics of the two-dimensional cavity-backed antenna having the absorber and the over-all properties of this subsurface radar due to buried objects are numerically analyzed by the Finite-Difference Time-Domain method. It is shown that the pulse propagation in the ground is confined to the narrow region due to the cavity. It is also shown that the multiple reflections in the cavity are effectively suppressed by choosing the suitable absorber, and so that the distinctive pulse echo can be obtained.
- 社団法人電子情報通信学会の論文
- 1993-10-25
著者
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HE Yiwei
Osaka Electro-Communication University
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Uno T
The Faculty Of The Engineering Tokyo University Of Agriculture And Technology
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Uno Toru
Faculty Of Engineering Tokyo University Of Agriculture And Technology
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Uno Toru
Faculty Of Engineering Tohoku University
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Uno Toru
The Department Of Electrical And Electronics Engineering Tokyo University Of Agriculture And Technol
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He Yiwei
The Faculty Of The Engineering Osaka Elctro-communication University
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Adachi Saburo
Faculty of Engineering, Tohoku University
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Adachi S
The Faculty Of The Engineering Tohoku Institute Of Technology
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Adachi Saburo
Faculty Of Engineering Tohoku University
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He Yiwei
Faculty of Engineering, Tohoku University
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Maeshima Osamu
Faculty of Engineering, Tohoku University
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