Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Scrim – Woven scrim
Patent
1996-08-19
1999-03-23
Cannon, James C.
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Scrim
Woven scrim
343832, 427593, 427123, 427124, 427125, 427296, 442 46, 428332, 428334, 428335, 428336, 428458, H01Q 128, B32B 1502, B32B 1508, B32B 1514, B32B 3300
Patent
active
058859063
ABSTRACT:
A mesh material for a spacecraft antenna reflector is disclosed. The mesh material has a base material made from a dielectric fabric. A conductive material, such as nickel, is applied to the dielectric mesh. The type and thickness of the conductive material is adjusted to regulate the final conductivity of the reflective surface to a predefined range. The present invention utilizes a range that reduces PIM while at the same time maintains a high degree of RF reflectivity. The preferred range is 0.01 to 10 ohms per square.
REFERENCES:
Hoeber, Christopher F., et al.; "Passive Intermodulation Product Generation In High Power Communications Satellites"; Ford Aerospace & Communications Corporation; pp. 1-14; 1985.
Lui, P.L.; "Passive Intermodulation Interference In Communication Systems"; Electronics & Communication Engineering Journal; pp. 109-118; Jun. 1990. plus p. 154.
Levy, Donald J, et al.; "Metallic Meshes For Deployable Spacecraft Antennas, Part I"; SAMPE Journal; pp. 4-7; May/Jun. 1973.
Bartholomew John R.
Reynolds Robert L.
Schmidt Kenneth J.
Cannon James C.
Denson-Low W. K.
Gudmestad Terje
Hughes Electronics
Leitereg Elizabeth E.
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