COAXIAL CONNECTOR WITH INGRESS REDUCTION SHIELD
A coaxial connector with an F female end shield is configured to restrict RF ingress.
1 . A coaxial cable connector comprising:
an outer connector body;
a female end of the connector is for engaging a male coaxial cable connector;
the connector female end having a waveguide with an aperture for receiving a center conductor of a coaxial cable;
wherein the diameter of the aperture is in the range 1.3 mm to 3.0 mm; and,
wherein the waveguide is configured to shield connector body internals from ingress of radio frequency signals in the range of 10 to 100 megahertz.
2 . The connector of claim 1 further comprising:
a waveguide surface;
the waveguide surface bordering the aperture and an aperture centerline about perpendicular to the waveguide surface;
the thickness of a waveguide surface measured along a line parallel to the aperture centerline is not less than 0.5 mm; and,
the thickness of the waveguide surface measured along a line parallel to the aperture centerline is not more than 1.5 mm.
3 . The connector of claim 2 wherein the diameter of the aperture and the thickness of the waveguide are selected in a manner consistent with use in a 75 ohm connection.
4 . The connector of claim 3 further comprising:
a rim of the outer connector body; and,
the waveguide formed by the rim.
5 . The connector of claim 3 further comprising:
a rim of the outer connector body; and,
the waveguide formed by a disk separable from the connector body.
6 . A coaxial cable connector comprising:
an outer connector body;
a female end of the connector is for engaging a male coaxial cable connector;
the connector female end having a waveguide with an aperture for receiving a center conductor of a coaxial cable;
the diameter of the aperture is not less than two times the diameter of the center conductor;
the diameter of the aperture is not more than 4 times the diameter of the center conductor; and,
wherein the waveguide is configured to shield connector body internals from ingress of radio frequency signals in the range of 10 to 100 megahertz while maintaining a nominal connector impedance of 75 ohms.
7 . The connector of claim 6 further comprising:
a waveguide surface;
the waveguide surface bordering the aperture and an aperture centerline about perpendicular to the waveguide surface;
the thickness of a waveguide surface measured along a line parallel to the aperture centerline is not less than 0.5 mm; and,
the thickness of the waveguide surface measured along a line parallel to the aperture centerline is not more than 1.5 mm.
8 . The connector of claim 6 wherein the diameter of the aperture and the thickness of the waveguide are selected in a manner consistent with achieving a connector impedance of 75 ohms.
9 . The connector of claim 8 further comprising:
a rim of the outer connector body; and,
the waveguide formed by the rim.
10 . The connector of claim 8 further comprising:
a rim of the outer connector body; and,
the waveguide formed by a disk held in place by the rim.
11 . A female F connector with an end opening body hole or separate entry disk behind the hole opening from 1.5 to 3 mm port with a thickness of 0.5 to 1.5 mm.
12 . The disk in claim 11 made from a metallic material.
13 . The disk on claim 11 made from a metallically impregnated polymer or ceramic material.
14 . The disk in claim 11 with additional waveguide slots in the end opening.
15 . The disk in claim 11 made from a polymer, ceramic, or fiberglass type material with a sputtered or etched magnetic material on the surface.