Patent ID: 8202111

Claim:
A connector comprising: a substrate; a plurality of signal terminals provided parallel to each other on one surface of the substrate; and a ground layer provided on another surface of the substrate, wherein each of the signal terminals and the ground layer are disposed in such a manner that at least a portion of the ground layer and at least a portion of each signal terminal are superposed on each other with the substrate therebetween, a plurality of holes are formed in at least part of the portion of the ground layer superposed on each signal terminal, and a largest diameter of each of the holes is smaller than a distance between centers of the signal terminals adjacent to each other; an outer-conductor common connection part provided on the one surface of the substrate in such a manner as to be separated at a predetermined distance from each signal terminal; and a second penetrating conductor provided in such a manner as to penetrate the substrate, and connecting the ground layer to the outer-conductor common connection part, wherein the distance between each signal terminal and the outer-conductor common connection part is 0.15 to 0.5 mm.