FIELD: antenna engineering; equipment for multifunction echoless chambers and shielded locations. SUBSTANCE: absorber is built up of insulating material based on radio-absorbing foam glass, magnetic material of radio-absorbing nickel zinc ferrite. both secured on metal substrate. EFFECT: extended band, reduced size, improved fire-resistance and environmental friendliness. 2 dwg
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Authors
Dates
1998-04-27—Published
1997-03-11—Filed