Patent ID: 7518462
Filing Date: 2009-04-14
Classification: H01P

Abstract:
1. A transmission line pair comprising: a substrate comprising a dielectric or semiconductor; one first signal conductor which is placed on one surface of the substrate; one second signal conductor which is placed on the one surface of the substrate; and a grounding conductor layer which is placed on another surface of the substrate, wherein each of the first signal conductor and the second signal conductor has a plurality of rotational-direction reversal structures, each structure arranged so as to be electrically connected to one another in series from one end-side to the other end-side of the substrate, each of the plurality of rotational-directions reversal structures comprising: a first signal conductor portion which is arranged so as to be curved toward a first rotational direction within the one surface of the substrate; and a second signal conductor portion which is arranged so as to be curved toward a second rotational direction opposite to the first rotational direction within the one surface of the substrate and is placed in the one surface of the substrate so as to be electrically connected in series to the first signal conductor, wherein each of the plurality of the rotational-direction reversal structures has a transmission-direction.