Title :
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
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;
Conference_Titel :
Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-5940-2
DOI :
10.1109/ISAF.2000.942456
