Coupled conductors in twinax cable and stripline printed circuit board for skew mitigation

An apparatus comprising:

• a dielectric body;
• a shield around a periphery of the dielectric body;
• and
• first and second conductors within the dielectric body spaced apart from each other,
• wherein the dielectric body comprises, in cross-section, a dielectric material having a first dielectric constant, and one or more strips along at least a portion of the periphery of the dielectric body adjacent to an inner surface of the shield, the one or more strips comprised of air gaps in the dielectric material or a different dielectric material having a second dielectric constant less than the first dielectric constant.

An apparatus comprising:

• a dielectric body having a non-homogeneous dielectric property in cross-section;
• first and second conductors within the dielectric body;
• and
• a shield containing the dielectric body.