Communication apparatus

A communication apparatus comprising:

• a plurality of antenna parts configured to receive or transmit one or more wireless signals;
• a communication control circuit configured to control transmitting or receiving of the one or more wireless signals via at least one of the plurality of antenna parts;
• and
• a casing housing the communication control circuit and the plurality of antenna parts,
• wherein each of the plurality of antenna parts is held near each of a plurality of partial regions of an inside of outer faces of the casing, each of the plurality of partial regions having a respective one of a plurality of normal directions, the plurality of normal directions cross each other, and the plurality of antenna parts are configured to transmit or receive a first wireless signal and a second wireless signal propagating in directions substantially orthogonal to the partial regions and having mutually different polarization directions,
• wherein a first antenna part of the plurality of antenna parts is disposed in a first region of the plurality of partial regions, the first antenna part comprises multiple first antenna elements, the multiple first antenna elements are disposed along a first line parallel to a first end face from among the outer faces of the casing,
• wherein a second antenna part of the plurality of antenna parts is disposed in a second region of the plurality of partial regions, the second antenna part is coupled to the first antenna part and comprises multiple second antenna elements, the multiple second antenna elements are disposed along a second line parallel to a second end face from among the outer faces of the casing, and the first end face is orthogonal to the second end face,
• wherein a first number of the multiple first antenna elements is four (4) or more,
• wherein a second number of the multiple second antenna elements is four (4) or more,
• wherein the first line along which the multiple first antenna elements are disposed is substantially parallel to the second line along which the multiple second antenna elements are disposed,
• wherein the first antenna part is configured to perform first beamforming by controlling at least one of first phases or first powers of a first plurality of wireless signals transmitted or received by each of the multiple first antenna elements, and
• wherein the second antenna part is configured to perform second beamforming by controlling at least one of second phases or second powers of a second plurality of wireless signals transmitted or received by each of the multiple second antenna elements.