Communication antenna unit and mobile terminal apparatus

摘要

A mobile terminal apparatus (10) comprising: a casing (11) that includes an accommodation portion (38) which a battery pack (14) is attachable to and detachable from; a battery pack (14) that is accommodated in the casing (11), a circuit board (13) that is accommodated in the casing (11); a power reception portion (16) that is held in the casing (11); a power feeding portion (18) that is provided in the battery pack (14) and connected to the power reception portion (16); a plurality of terminal plates (44), each having one end to be held on one surface which is included in the power reception portion (16), and having two widest surfaces which are parallel to each other, one of which facing and being parallel to one of two widest surfaces of an adjacent terminal plate (44), wherein the plurality of terminal plates are aligned along a direction orthogonal to those two widest surfaces; a flexible circuit board (21) that includes a flexible bendable portion (48) provided along the direction in which the plurality of terminal plates (44) are aligned and connects the circuit board to the power reception portion (18).