A configurable circuit array that includes a matrix of cells, where each cell includes interconnected analog and/or digital circuit elements. The cells are fabricated on a common semiconductor substrate, and are electrically isolated from each other. The circuit elements in the cells are electrically coupled to circuit elements in other cells, and are electrically coupled to bonding pads by coaxial transmission lines capable of transmitting extremely high frequency signals. The transmission lines include a center conductor and first and second shield conductors, where the shield conductors prevent cross-talk interference. The transmission lines extend vertically from the substrate until they are a suitable distances above the circuit elements in the cell. From there, the transmission lines extend horizontally relative to the substrate to the opposite end connection point, where they again extend vertically down to the substrate.