A radio communication apparatus includes housings that are connected via a hinge unit in an openable/closeable manner, and circuit boards in the housings. The circuit boards are connected via circuit connecting lines functioning as an inductor. One end of the hinge unit is connected to an end portion of the housing and the other end thereof is connected to a portion located farther inside than an end portion of the housing. When the housings are unfolded, a region extending from the portion to the end portion of the housing overlaps a region near the end portion of the housing in a projection domain. A high dielectric member is provided in this overlapped region, and a capacitor is constituted by the high dielectric member and ground areas.