Electronic device and communication method

A communication method for an electronic device comprising:

• a first array antenna comprising a plurality of first antenna elements on a first planar substrate;
• a first wireless communication device that communicates via a first frequency band by the first array antenna;
• a second array antenna comprising a plurality of second antenna elements on a second planar substrate, an orientation of the second array antenna being different from an orientation of the first planar substrate;
• and
• a second wireless communication device that communicates via a second frequency band by the second array antenna, wherein
• the second frequency band is different from the first frequency band, the method comprising:
• transmitting a first electromagnetic wave by the first wireless communication device;
• and
• transmitting a second electromagnetic wave by the second wireless communication device.

An electronic system comprising:

• a first electronic device;
• and
• a second electronic device that wirelessly communicates with the first electronic device, wherein
• the second electronic device comprises:
• a first array antenna comprising a plurality of first antenna elements on a first planar substrate;
• a first wireless communication device that communicates with the first electronic device via a first frequency band by the first array antenna;
• a second array antenna comprising a plurality of second antenna elements on a second planar substrate, an orientation of the second planar substrate being different from an orientation of the first planar substrate;
• and
• a second wireless communication device that communicates with a third wireless communication device via a second frequency band by the second array antenna, wherein the second frequency band is different from the first frequency band.