A radio communication device includes a first antenna, a second antenna, a phase varying section that varies a phase of a first RF signal received by or transmitted from the first antenna, and a phase control section that causes the phase varying section to vary a phase amount, which is a varied amount of the phase of the first RF signal received by or transmitted from the first antenna. Thus, it is possible to prevent the size of a device configuration from increasing and avoid the lowering of a reception electric field level in a localized area.