A proposal of multi-functioned EM-wave absorbers

Author

Kotsuka, Youji ; Komazawa, Yoshihiko

Author_Institution

Fac. of Eng., Tokai Univ., Kanagawa, Japan

fYear

1999

fDate

1999

Firstpage

500

Lastpage

503

Abstract

A multi-functioned EM-wave absorbers are investigated. As one of these fundamental concepts, light reflecting, light emitting and EM-wave radiating type absorbers have been proposed. First, the methods of controlling the matching frequency are investigated as a key technology to realize these kinds of EM-absorber. Simple methods for controlling the matching frequency using magnetized ferrite, ferrite combined with other materials, and ferrite with small holes are summarized. In particular, the detailed matching characteristics of ferrite with small holes are investigated theoretically and experimentally. Secondly, as examples of multi-functional absorbers, the matching characteristics of the light reflecting and the light emitting absorbers at frequencies of 2.45 GHz and 5.8 GHz are clarified

Keywords

electromagnetic wave absorption; ferrites; frequency control; light reflection; 2.45 GHz; 5.8 GHz; SHF; UHF; light emitting absorbers; light reflecting absorbers; magnetized ferrite; matching frequency control; multi-functioned EM-wave absorbers; small holes; Conducting materials; Electromagnetic compatibility; Ferrites; Frequency; Local area networks; Magnetic analysis; Magnetic materials; Proposals; Radar countermeasures; Roads;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1999 International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-9980748-4-9

Type

conf

DOI

10.1109/ELMAGC.1999.801374

Filename

801374