<p>A card unit (1) comprising a circuit board (5) contained in a card case (4), and an antenna (7) fixed rotatably to the outer side of the card case (4), wherein an antenna rotary shaft (12) provided on the base end side of the antenna (7) is inserted from the outside to the inside of the card case (4) through a through hole (13) thereof along the surface of the circuit board (5) and supported rotatably by the card case (4) while floating above the circuit board (5). A resilient feeding terminal (20) for imparting an urging force to the antenna rotary shaft (12) is interposed between the antenna rotary shaft (12) and the circuit board part facing it. The feeding terminal (20) is secured to the antenna connecting part of a circuit provided at the position of the circuit board (5) facing the antenna rotary shaft (12). The feeding terminal (20) comes into pressure contact with the antenna rotary shaft (12).</p>
