Antenna module and communication apparatus including the same

An antenna module comprising:

• a dielectric substrate;
• a ground electrode disposed in the dielectric substrate;
• a first radiating element disposed to face the ground electrode;
• a second radiating element disposed between the first radiating element and the ground electrode;
• and
• a first peripheral electrode disposed in a layer of the dielectric substrate between the ground electrode and the second radiating element and electrically connected to the ground electrode, wherein
• the first radiating element and the second radiating element have a planar shape,
• the first radiating element is configured to emit a first radio wave in a first frequency band,
• the second radiating element is configured to emit a second radio wave in a second frequency band that is lower than the first frequency band,
• the first peripheral electrode includes multiple planar electrodes that are stacked in a first direction in which the first radiating element faces the ground electrode,
• the multiple planar electrodes include a first electrode and a second electrode disposed in a layer between the first electrode and the ground electrode, and
• a size of the second electrode is less than a size of the first electrode.