Patent ID: 8138979

Claim:
A diversity type portable wireless apparatus comprising: two antennas; a wireless communication unit; a housing; and a circuit board provided inside the housing, a reference potential portion being formed on the circuit board; wherein: the two antennas are arranged at one end within the housing; at least one antenna of the two antennas is mounted on the circuit board; the at least one antenna of the two antennas is a receiving antenna; the other antenna of the two antennas is a transmitting and receiving antenna; the wireless communication unit is configured to perform a diversity receiving operation using the at least one antenna and the other antenna; and a component having a metal portion electrically connected to the reference potential portion is arranged in the vicinity of the at least one antenna such that a gain of the at least one antenna is lowered and deterioration of a gain of the other antenna is reduced, thereby suppressing an interference between the at least one antenna and the other antenna.