Electromagnetic wave absorber using dielectric (Ti) · magnetic(Fe) composite material for GHz frequency band

Author

Saitoh, Mitsuru ; Yamamoto, Taliashi ; Sakamoto, Tuyo ; Niori, Hirotake ; Chino, Masaru ; Kobayasi, Masaki

Author_Institution

Dept. of Commun. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

2

fYear

2000

fDate

2000

Firstpage

871

Abstract

It was shown that the matching frequency shift change by the mixing ratio of Fe/Ti can set the matching frequency of wave absorber from 7.7 to 9.4GHz arbitrarily maintaining the maximum reflection loss below 40dB. Moreover, it is able to cover a frequency band of 2.9GHz in a bandwidth of -20dB from 7.3 to 10.2GHz using the same material. The performance of the wave absorber can be analyzed precisely by using calculation. In addition, if you can individually design the values of ε r * and μ r *, it is shown to be able to design the wave absorber with an arbitrary matching frequency by selecting the material of the the wave absorber

Keywords

coaxial waveguides; composite materials; electromagnetic wave absorption; losses; magnetic permeability; permittivity; waveguide components; 7.3 to 10.2 GHz; 7.7 to 9.4 GHz; Fe(CO)₅-TiO₂; arbitrary matching frequency; dielectric-magnetic composite material; electromagnetic wave absorber; gigahertz frequency band; matching frequency shift change; maximum reflection loss; Circuits; Composite materials; Dielectric loss measurement; Dielectric losses; Dielectric materials; Extraterrestrial measurements; Impedance; Iron; Magnetic materials; Organic materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on

Conference_Location

Honolulu, HI

ISSN

1099-4734

Print_ISBN

0-7803-5940-2

Type

conf

DOI

10.1109/ISAF.2000.942456

Filename

942456