Method of producing coaxial cable

Details Method of producing coaxial cable Method of producing coaxial cable

1979-10-11

1981-11-17

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

333237, H01Q 1322

Patent

active

043003389

ABSTRACT:
A method of manufacturing leaky coaxial cables having an array of apertures in the conductive outer layer. The total area of the apertures is a predetermined fraction of the surface area of the cable. A pair of strip conductors of particular widths are selected and wound around the inner conductor and dielectric at predetermined pitch angles. This provides apertures having a total area which is a predetermined fraction of the surface area of the cable, a predetermined shape and being of a predetermined number per unit length. By varying the pitch angle during winding the distribution of apertures and hence the coupling of the cable can be varied. By testing short sections of cables of different geometry a coupling function and an attenuation function can be calculated to provide data for winding cables with desired characteristics.

REFERENCES:
patent: 3486317 (1969-12-01), Grawey et al.
patent: 3756004 (1973-09-01), Gore
patent: 3870977 (1975-03-01), Peoples et al.
patent: 3949329 (1976-04-01), Martin
patent: 3975700 (1976-08-01), Halstead

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