Radio-frequency reflective fabric

Details Radio-frequency reflective fabric Radio-frequency reflective fabric

1988-08-22

1990-05-22

Petrakes, John

Textiles: weaving

Fabrics

Materials

57210, 57230, 57901, 139426R, 428225, D03D 1500, D02G 312, D02G 336

Patent

active

049269100

ABSTRACT:
A radio-frequency reflective surface is made of a fabric woven from a yarn having an effective coefficient of thermal expansion of substantially zero over a useful temperature range. The yarn comprises a metallic filament around which non-metallic rovings are wound. The coefficients of thermal expansion of the filament and the roving material are related to each other so that mechanical strain thermally induced in the filament by changes in temperature is counteracted by mechanical strain theremally induced in the rovings. Intermodulation products at yarn intersections of the fabric are substantially zero.

REFERENCES:
patent: 4202382 (1980-05-01), Westhead
patent: 4381639 (1983-05-01), Kress
patent: 4384449 (1983-05-01), Byrnes, Sr. et al.
patent: 4470251 (1984-09-01), Bettcher
patent: 4776160 (1988-10-01), Rees
patent: 4793130 (1988-12-01), Togashi et al.

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