Patent ID: 7834270
Filing Date: 2010-11-16
Classification: H01B

Abstract:
1. Apparatus for transmitting signals in an RF field comprising: a source of RF signals to be transmitted; a circuit ground; a shielded cable comprising: an inner conductor construction extending axially along the cable and providing electrical connection for transmission of signals between opposite ends of the cable; an axially extending outer shield conductor disposed in spaced surrounding relationship around the inner conductor construction, the outer shield conductor extending continuously between the opposite ends of the cable; the outer shield conductor being connected to the circuit ground; the outer shield conductor fully enveloping the inner conductor construction so as to shield the inner conductor construction from said RF field; the inner conductor construction being electrically insulated from the outer shield conductor by dielectric material interposed between; a plurality of segmented shield conductor portions each surrounding the outer shield conductor and each having a length less than that of the cable; the segmented shield conductor portions being arranged at locations along the cable; the segmented shield conductor portions being electrically separated each from the others such that the segmented shield conductor portions float electrically relative to the other segmented shield conductor portions; the segmented shield conductor portions being electrically separated from the outer shield conductor such that the segmented shield conductor portions float electrically relative to the outer shield conductor; and a cable jacket enclosing the segmented shield conductor portions and the outer shield conductor.