Antenna module and electronic device

An antenna module, comprising:

• a first dielectric layer;
• a ground layer arranged on the first dielectric layer, and having a first slot and a second slot therein;
• a second dielectric layer arranged on the ground layer, and defining an air chamber in a side adjacent to the ground layer, the air chamber being communicated with the first slot and the second slot, respectively, wherein rest of the side of the second dielectric layer adjacent to the ground layer is in contact with the ground layer;
• a stacked patch antenna comprising a first radiation patch and a second radiation patch, the first radiation patch being attached to a side of the second dielectric layer facing away from the ground layer, the second radiation patch being received in the air chamber and attached to a bottom of the air chamber facing the ground layer, an orthogonal projection of the first radiation patch on the ground layer covering at least one of at least part of the first slot and at least part of the second slot, and an orthogonal projection of the second radiation patch on the ground layer covering at least one of at least part of the first slot and at least part of the second slot;
• and
• a feeding unit arranged to a side of the first dielectric layer facing away from the ground layer, and configured to feed the first radiation patch through the first slot and feed the second radiation patch through the second slot.

An electronic device, comprising:

• a housing;
• an antenna base plate arranged to the housing, and comprising:
• a first dielectric layer;
• a ground layer arranged on the first dielectric layer, and having at least one slot therein;
• and
• a second dielectric layer arranged on the ground layer, and defining an air chamber therein, the air chamber being communicated with the at least one slot, wherein the air chamber is formed in a side of the second dielectric layer adjacent to the ground layer, and rest of the side of the second dielectric layer adjacent to the ground layer is in contact with the ground layer;
• a stacked patch antenna comprising a first radiation patch and a second radiation patch, the first radiation patch being attached to a side of the second dielectric layer facing away from the ground layer, the second radiation patch being attached to a side of the second dielectric layer provided with the air chamber, an orthogonal projection of the first radiation patch on the ground layer covering at least part of the at least one slot, and an orthogonal projection of the second radiation patch on the ground layer covering at least part of the at least one slot;
• and
• a feeding unit arranged to a side of the first dielectric layer facing away from the ground layer, the feeding unit being configured to feed the stacked patch antenna through the at least one slot, the first radiation patch being configured to generate a resonance in a first frequency band under the feeding of the feeding unit, and the second radiation patch being configured to generate a resonance in a second frequency band under the feeding of the feeding unit.