Facade construction in high rise structures

Details Facade construction in high rise structures Facade construction in high rise structures

1990-01-16

1992-01-28

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

Radio wave absorber

52235, G01S 736

Patent

active

050847058

ABSTRACT:
Flat panel elements are placed ahead of structural parts reflecting electromagnetic waves, in the region of radar waves, in order to provide an absorption or reduction of the reflection. For this purpose electrically and/or magnetically conducting materials are embedded into an insulating material in order to form areas of conductivity. The dimensions of these areas of conductivity in all planes are at least 1000 times smaller than the wavelength of the waves to be absorbed, and the electrically and/or magnetically conducting materials amount up to 40% of the weight of the panel area elements.

REFERENCES:
patent: 4006479 (1977-02-01), LaCombe
patent: 4023174 (1977-05-01), Wright
patent: 4118704 (1978-10-01), Ishino et al.
patent: 4162496 (1979-07-01), Downen et al.
patent: 4327364 (1982-04-01), Moore
patent: 4701761 (1987-10-01), Affinito
Hochfrequenz-absorbierende Materialien, Dominik, H. et al., ntz Bd. 41, (1988), Heft 5, pp. 280-283.

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