Isolated probe tip

Abstract

A probe tip for an isolated probe having a triaxial cable has a conductive probe tip interface at one end of the cable, a signal conductor, the signal conductor traversing a length of the cable and electrically connected to the conductive probe tip interface, a reference conductor surrounding the signal conductor along the length of the cable, a shield conductor surrounding the reference conductor at least along the length of the cable, the shield conductor and the reference conductor electrically connected at ends of the probe tip, a first insulator between the signal conductor and the reference conductor along the length of the cable, a second insulator between the reference conductor and the shield conductor along the length of the cable, and high magnetic permeability material inside the shield conductor. A method of manufacturing a tip for an isolated probe having a triaxial cable includes accessing a shield conductor of the triaxial cable, inserting a high magnetic permeability material between the shield conductor and a reference conductor in the triaxial cable, electrically connecting the shield conductor to the reference conductor. A triaxial cable has a signal conductor, the signal conductor traversing a length of the cable, a reference conductor surrounding the signal conductor along the length of the cable, a shield conductor surrounding the reference conductor along the length of the cable, the shield conductor and the reference conductor electrically connected at ends of the cable, a first insulator between the signal conductor and the reference conductor along the length of the cable, a second insulator between the reference conductor and the shield conductor along the length of the cable, and high magnetic permeability material inside the shield conductor.

Dependencies are inferred from the claim text.