To provide a technology which maintains waterproof performance and improves antenna performance in a communication apparatus.

A conductive member 39 electrically connected to a ground pattern of an operation side substrate 36 on which electronic components electrically connected to an antenna are mounted is provided at an operation side hinge part 41. A conductive member 26 is provided at a display side hinge part 40 so as to form capacitive coupling with the conductive member 39. A conductive member 28 electrically connected to a ground pattern of a display side substrate on which electronic components are mounted has a partition wall inner portion 280, which is positioned on an inner side of an outer side surface of a partition wall 260b and electrically connected to the ground pattern of the display side substrate, and a partition wall outer portion 281 extending from the partition wall inner portion 280 to the outer side of the partition wall 230b to form capacitive coupling with the conductive member 26.