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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
*
Kossyi@fpl.gpi.ru
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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 ( $P \le1$  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).

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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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