Antenna device and wireless device

An antenna device, comprising:

• a waveguide including a feed point and a first region,
• the first region being around the feed point on a first plane crossing a first axis direction passing through the feed point,
• the waveguide including a plurality of radiating portions provided in the first region, each of the plurality of radiating portions including a first slot extending along a first slot direction and a second slot extending along a second slot direction crossing the first slot direction,
• the plurality of radiating portions including a first radiating portion and a second radiating portion,
• a first radiating portion direction from the feed point to the first radiating portion crossing the first axis direction,
• a second radiating portion direction from the feed point to the second radiating portion crossing the first axis direction and crossing the first radiating portion direction,
• a first angle is formed between the first slot direction along which the first slot of the first radiating portion extends and the first radiating portion direction,
• a second angle is formed between the first slot direction along which the first slot of the second radiating portion extends and the second radiating portion direction, and
• a second absolute value of the second angle is smaller than a first absolute value of the first angle.