Transmission line

Details Transmission line Transmission line

1986-10-27

1988-03-08

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Conductive armor or sheath

174 28, 174110F, 174117F, H01B 1100, H01B 708

Patent

active

047300884

ABSTRACT:
A high speed electrical transmission line is provided comprising a signal conductor having an open cell, continuously porous, polymeric insulating material surrounding the conductor, the insulating material having a plurality of openings fused therein, the walls of the openings being solid, fused polymer which provide compressive strength for the otherwise highly compressible porous insulating material. The preferred polymer is expanded, porous polytetrafluoroethylene. The openings may be formed by a laser or by other means.

REFERENCES:
patent: 2805276 (1957-09-01), Weitzel
patent: 3639674 (1972-02-01), Stier
patent: 4104481 (1978-08-01), Wilkenloh et al.
patent: 4368350 (1983-01-01), Perelman
patent: 4443657 (1984-04-01), Hill et al.
patent: 4645868 (1987-02-01), Suzuki
patent: 4649228 (1987-03-01), Suzuki

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