Self erectable structure

Details Self erectable structure Self erectable structure

1967-09-25

1977-08-23

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 18B, 428 12, 428101, H01Q 1500, H01Q 1700

Patent

active

040443582

ABSTRACT:
An interference type radar attenuator is described formed of a plurality of thin sheets having selected admittance values. The sheets are spaced apart by thin plastic spacer members having a shape memory so that the sheets can be compressed together by deforming the plastic spacers for very tight packaging and, upon release of the packaging, the sheets return to a spaced relation for effective radar attenuation. A similar structure is useful in space vehicles for thermal shielding and as a meteroid bumper.

REFERENCES:
patent: 2072152 (1937-03-01), Blake et al.
patent: 2742387 (1956-04-01), Giuliani
patent: 2771602 (1956-11-01), Kuhnhold
patent: 2828484 (1958-03-01), Skellett
patent: 3001196 (1961-09-01), McIlroy et al.
patent: 3152033 (1961-10-01), Black et al.
patent: 3227601 (1966-01-01), Crosby
patent: 3314846 (1967-04-01), Niwa

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