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Interaction of high-power microwave beams with metal-dielectric media

Published online by Cambridge University Press:  04 March 2004

G. M. Batanov ,
N. K. Berezhetskaya ,
I. A. Kossyi ,
A. N. Magunov  and
V. P. Silakov
G. M. Batanov
Affiliation:
General Physics Institute of Russian Academy of Sciences, 119991, Vavilova Street 38, Moscow, Russia
N. K. Berezhetskaya
Affiliation:
General Physics Institute of Russian Academy of Sciences, 119991, Vavilova Street 38, Moscow, Russia
I. A. Kossyi*
Affiliation:
General Physics Institute of Russian Academy of Sciences, 119991, Vavilova Street 38, Moscow, Russia
A. N. Magunov
Affiliation:
General Physics Institute of Russian Academy of Sciences, 119991, Vavilova Street 38, Moscow, Russia
V. P. Silakov
Affiliation:
General Physics Institute of Russian Academy of Sciences, 119991, Vavilova Street 38, Moscow, Russia
*
[email protected]
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Abstract

Results of experimental investigation of powerful microwave beams action on the metal-dielectric compositions are presented. Dielectric surfaces with introduced metallic grains as well as dielectric powder containing small admixtures of a metallic one have been explored as an objects of irradiation. At a relatively small microwave power ($P \le 1$ mW) all investigated targets were practically completely transparent for incident electromagnetic wave. At a relatively high power (microwave generators based on the gyratrons and powerful magnetrons) the irreversible changes in the electric and radiophysical properties of metal-dielectric composites exposed to microwave radiation whose intensity is below the threshold intensity for plasma production have been observed (sharp increase of conductivity and microwave absorption coefficient).

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 26 , Issue 1 , April 2004 , pp. 11 - 16
Copyright
© EDP Sciences, 2004

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References

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