Electrical connectors

An electrical connector assembly for propagation of electrical signals therethrough between opposite sides of said assembly, comprising:

• support means having opposite surfaces corresponding to said opposite sides, a plurality of spaced signal-propagating interconnect means extending through said support means between said opposite surfaces thereof and arranged in generally parallel relation to one another for interconnecting circuit components at said opposite sides of said assembly, ground conductor means included in said support means and having portions in adjacent relation to said signal-propagating interconnect means, ground interconnect means for connecting said ground conductor means to ground conductors of said circuit components, and insulating means of dielectric material included in said support means for supporting said signal-propagating interconnect means and in electrically insulated relation to adjacent portions of said ground conductor means to provide each supported signal-propagating interconnect means with an adjacent ground path of very low inductance and resistance to obtain efficient signal propagation between interconnected circuit components and to inhibit the build-up of any potential difference between such interconnected circuit components.