Electrical cable with dielectric film
AssigneeSwift Bridge Technologies (M) SDN BHD
InventorDalibor Jan Smejtek
Life of this patent
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Abstract
A cable includes an inner conductor and a dielectric layer extending around the inner conductor. The dielectric layer includes a bi-directionally stretched polypropylene film having a porous structure that includes a plurality of pores that extend through a thickness of the bi-directionally stretched polypropylene film. The dielectric layer includes air molecules trapped within the pores of the bi-directionally stretched polypropylene film such that the dielectric layer includes polypropylene and air. The cable includes an outer conductor extending around the dielectric layer.
Claims20
A cable comprising:
- an inner conductor;
- a dielectric layer extending around the inner conductor, the dielectric layer comprising a bi-directionally stretched polypropylene film having a porous structure that includes a plurality of pores that extend through a thickness of the bi-directionally stretched polypropylene film, the dielectric layer comprising air molecules trapped within the pores of the bi-directionally stretched polypropylene film such that the dielectric layer comprises polypropylene and air;
- and
- an outer conductor extending around the dielectric layer.
A cable comprising:
- at least one inner conductor;
- a dielectric layer extending around the at least one inner conductor, the dielectric layer comprising a bi-directionally stretched polypropylene film having a porous structure that includes a plurality of pores that extend through a thickness of the bi-directionally stretched polypropylene film, the dielectric layer comprising air molecules trapped within the pores of the bi-directionally stretched polypropylene film such that the dielectric layer comprises polypropylene and air, wherein the bi-directionally stretched polypropylene film comprises a porosity of greater than approximately 70%;
- and
- an outer conductor extending around the dielectric layer.
A method for assembling a coaxial cable, the method comprising:
- applying a bi-directionally stretched polypropylene film around an inner conductor of the coaxial cable to form a dielectric layer around the inner conductor, the bi-directionally stretched polypropylene film having a porous structure that includes a plurality of pores that extend through a thickness of the bi-directionally stretched polypropylene film;
- and
- applying an outer conductor around the bi-directionally stretched polypropylene film of the dielectric layer such that air molecules are trapped within the pores of the bi-directionally stretched polypropylene film.
Dependencies are inferred from the claim text.