In a wireless apparatus which includes two circuit boards overlapping each other, it is contrived to improve antenna characteristics without using a sleeve ground part of a flexible cable.A wireless apparatus 20 includes a first circuit board 21, a second circuit board 22 and a connector 23. An antenna element 25 is mounted to the first circuit board 21. The second circuit board 22 can be in a state that the second circuit board 22 overlaps with the first circuit board at least partially. The connector 23 has a shape extending from one side of an area overlapping the first circuit board 21 and the second circuit board 22 toward the other side. The connector 23 is connected electrically with the first circuit board 21 and the second circuit board 22. The connector 23 controls electrical current distribution which is generated in the first circuit board 21 and the second circuit board 22 due to applying an electrical current to the antenna element 25.