A radio apparatus having a first housing section and a second housing section is provided. The radio apparatus has a printed board contained in the second housing. The printed board is provided with an antenna feeding circuit. The radio apparatus has a hinge section pivotally connecting the first housing section and the second housing section to each other so as to relatively rotate the first housing section and the second housing section. The hinge section includes a spring, a non-conductive portion and a conductive portion other than the spring. The conductive portion is connected to the antenna feeding circuit.