Corrugated stripline RF transmission cable
View Patent ↗A stripline RF transmission cable has a generally planar inner conductor surrounded by a dielectric layer that is surrounded by a corrugated outer conductor. The corrugations may be, for example, annular or helical. The outer conductor has a top section and a bottom section which transition to a pair of edge sections that interconnect the top section with the bottom section. The top section, bottom section and the inner conductor may be provided with generally equal widths. A spacing between the inner conductor and the dielectric layer may be reduced proximate a mid section of the inner conductor. The inner conductor may also be corrugated generally normal to a longitudinal extend of the inner conductor.
1. A stripline RF transmission cable, comprising:
a generally planar inner conductor extending between a pair of inner conductor edges;
the inner conductor surrounded by a dielectric layer; and
an outer conductor, with a generally hour glass-shaped cross-section, provided with a top section and a bottom section, surrounding the dielectric layer;
the top section and the bottom section spaced farther away from each inner conductor edge than from a midsection of the inner conductor;
the outer conductor provided with corrugations; and
the inner conductor corrugated generally normal to a longitudinal extent of the inner conductor.
2. The cable of claim 1 , wherein the corrugations are annular.
3. The cable of claim 1 , wherein the corrugations are helical.
4. The cable of claim 1 , wherein a period of the corrugations of the inner conductor and a period of the corrugations of the outer conductor are equal to one another.
5. The cable of claim 1 , wherein a period of the corrugations of the inner conductor and a period of the corrugations of the outer conductor are a multiple of one another.
6. The cable of claim 1 , wherein a period of the corrugations of the inner conductor is less than a period of the corrugations of the outer conductor.
7. The cable of claim 1 , further including a polymer jacket surrounding the outer conductor.
8. A stripline RF transmission cable, comprising:
a generally planar inner conductor extending between a pair of inner conductor edges; the inner conductor corrugated generally normal to a longitudinal extent of the inner conductor;
the inner conductor surrounded by a dielectric layer; and
an outer conductor, with a generally hour glass-shaped cross-section, with a top section and a bottom section, surrounding the dielectric layer;
the outer conductor provided with annular corrugations;
the top section and the bottom section provided spaced farther away from each inner conductor edge than from a midsection of the inner conductor.
9. The cable of claim 8 , wherein a period of the corrugations of the inner conductor and a period of the corrugations of the outer conductor are equal to one another.
10. The cable of claim 8 , wherein a period of the corrugations of the inner conductor and a period of the corrugations of the outer conductor are a multiple of one another.
11. The cable of claim 8 , wherein a period of the corrugations of the inner conductor is less than a period of the corrugations of the outer conductor.