Cable for high speed data communications

A method of operation for a cable for high speed data communications, the cable comprising:

• a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer, the inner conductors and the dielectric layers disposed within the cable in parallel with a longitudinal axis of the cable;
• a third inner conductor enclosed by a third dielectric layer and a fourth inner conductor enclosed by a fourth dielectric layer, the third and fourth inner conductors and the third and fourth dielectric layers stacked upon the first and second inner conductors and the first and second dielectric layers parallel with and along the longitudinal axis of the cable;
• and
• drain conductors disposed within the cable laterally to the third and fourth inner conductors adjacent to the third and fourth dielectric layers along the longitudinal axis of the cable and within thirty degrees of a horizontal axis through the third and fourth inner conductors;
• drain conductors disposed within the cable laterally to the inner conductors adjacent to the dielectric layers along the longitudinal axis of the cable and within thirty degrees of a horizontal axis through the inner conductors;
• and
• a conductive shield comprising a strip of conductive shield material wrapped in a rotational direction along and about the longitudinal axis around the inner conductors, the dielectric layers, and the drain conductors, including overlapped wraps of the conductive shield material along the longitudinal axis that create a bandstop filter that attenuates signals at frequencies in a stopband, wherein the conductive shield material is around all four inner conductors, all four dielectric layers, all of the drain conductors, and no other conductive shields;
• the method comprising:
• transmitting through the inner conductors a balanced, alternating current signal having a frequency in the stopband, with a return signal path through the conductive shield and the drain conductors;
• attenuating the signal by the bandstop filter;
• and
• reducing the attenuation of the signal by the signal return path through the drain conductors.