High frequency coaxial cable
AssigneeAlcatel Kabel AG & Co.
InventorsGerhard Ziemek, Horst Fischer
Life of this patent
Estimating the term…
Abstract
A high frequency coaxial cable (1) contains a concentric internal conductor (3), a cylindrical insulating layer (7) surrounding the internal conductor (3) and made of a foamed plastic containing more than 50% by volume of air, a tubular external conductor (9) placed over the insulating layer (7), and an outer sheath (11). Cutouts (15, 15') are made in the insulating layer (7) by removing insulation material starting at the periphery (13) of the insulating layer and extending radially inward. These cutouts (15, 15') make it possible to increase the dielectric properties of the insulating layer between internal conductor (3) and external conductor (9).
Claims24
A high frequency coaxial cable comprising:
- (a) an internal conductor;
- (b) a cylindrical insulating layer concentrically surrounding the internal conductor and being made of a foamed plastic containing more than 50% by volume of air, the cylindrical insulating layer having cutouts defined therein that extend radially inward starting at a periphery of the cylindrical insulating layer, the cutouts have a width in a range of between 10 and 50 mm and are formed by removing a portion of the foamed plastic from the cylindrical insulating layer;
- (c) a tubular external conductor placed over the insulating layer;
- and
- (d) an outer sheath surrounding the tubular external conductor.
Dependencies are inferred from the claim text.