Antenna module and communication device equipped with the same

A communication device comprising:

• a baseband integrated circuit that performs baseband processing on signals exchanged with an antenna module;
• and
• the antenna module, the antenna module including
• a first substrate and a second substrate disposed adjacent to each other and having different normal directions,
• a first radiating element disposed on the first substrate,
• a second radiating element disposed on the second substrate,
• a first hybrid coupler including a first input terminal and a second input terminal, and a first output terminal and a second output terminal, and
• a feed circuit connected to the first input terminal and the second input terminal and configured to supply a radio-frequency signal to the first radiating element and the second radiating element, wherein
• the first radiating element and the second radiating element are configured to be capable of radiating a radio wave in a first frequency band,
• the first radiating element is connected to the first output terminal,
• the second radiating element is connected to the second output terminal, and
• a phase difference between radio-frequency signals to be supplied to the first input terminal and the second input terminal is adjusted to fall within a range of greater than −90° and less than 90°.