Title:
不可視包囲体
Document Type and Number:
Japanese Patent JP5717202
Kind Code:
B2
Abstract:
An invisible enclosure includes a cylindrical central enclosure having a cavity formed therein and an outer shell formed of homogenous materials, with an object in the cavity and the central enclosure itself being substantially invisible with an electromagnetic wave. The central enclosure is formed by laminating a large number of cylindrical layered films formed by radially laminating a plurality of materials having different permittivities. Effective values of respective permittivities of respective parts of the central enclosure are adjusted by adjusting permittivities and radial thicknesses of respective layers of the layered films along a radius value of the central enclosure. The radial element of a permittivity tensor is set to be a value sequentially increasing along a radius from the innermost circumference of the central enclosure to the outermost circumference thereof and is set to be a predetermined value smaller than the permittivity of the outer shell at the outermost circumference.
Inventors:
Atsushi Sanada
Application Number:
JP2012507061A
Publication Date:
May 13, 2015
Filing Date:
March 24, 2011
Export Citation:
Assignee:
Yamaguchi University
International Classes:
H01Q15/08
Domestic Patent References:
| JP2008023517A | 2008-02-07 | |||
| JPH03119807A | 1991-05-22 | |||
| JP2008023517A | 2008-02-07 | |||
| JPH03119807A | 1991-05-22 |
Other References:
JPN6011030819; Ｈａｉ-Ｙｉｎｇ Ｙａｏ，Ｃｈｅｎｇ-Ｗｅｉ Ｑｉｕ，Ｌｅ-Ｗｅｉ Ｌｉ: 'Ｓｃａｔｔｅｒｉｎｇ Ｃｈａｒａｃｔｅｒｉｓｔｉｃｓ ｆｒｏｍ Ｃｏｎｄｕｃｔｉｎｇ Ｃｙｌｉｎｄｅｒ ｗｉｔｈ Ｒｅｃｏｎｓｔｒｕｃｔｉｎｇ Ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ Ｃｌｏａｋｉｎｇ Ｌａｙ' Ｍｉｃｒｏｗａｖｅ Ｃｏｎｆｅｒｅｎｃｅ， ２００９． ＡＰＭＣ ２００９． Ａｓｉａ Ｐａｃｉｆｉｃ , 20091210, ｐ．９６０-９６３
Attorney, Agent or Firm:
Motonari Tomisaki
Sadao Enjoji
Machida Mitsunobu
Sadao Enjoji
Machida Mitsunobu