Antenna module comprising cavity

1. An antenna module comprising:

a layer structure, wherein the layer structure includes:

a plurality of non-conductive layers;

a first layer disposed between the plurality of non-conductive layers, the first layer including at least one first conductive patch;

a second layer disposed adjacent to the plurality of nonconductive layers in a first direction, the second layer including a ground; and

a feeding line configured to pass through at least one non-conductive layer located between the first layer and the second layer among the plurality of non-conductive layers and the second layer, the feeding line being electrically connected with the at least one first conductive patch; and

communication circuitry disposed adjacent to the layer structure in the first direction and configured to supply electric power to the at least one first conductive patch through the feeding line,

wherein at least one first cavity is forged in at least part of the at least one non-conductive layer through which the feeding line passes.

2. The antenna module of claim 1 , wherein the at least one first cavity is formed between the at least one first conductive patch and the ground.

3. The antenna module of claim 1 , wherein an opening is formed through the first layer and at least some of the plurality of non-conductive layers.

4. The antenna module of claim 3 , where when the layer structure is viewed in the first direction, a region in which the opening is formed surrounds a region in which the at least one first conductive patch is disposed.

5. The antenna module of claim 3 , wherein an insulating layer is formed in an opposite direction to the first direction on a region of the second layer corresponding to the opening.

6. The antenna module of claim 3 , wherein the opening is implemented through a laser or a drill.

7. The antenna module of claim 1 , wherein the layer structure further includes a third layer disposed adjacent to the plurality of non-conductive layers in an opposite direction to the first direction, and

wherein the third layer includes a second conductive patch disposed in a region corresponding to the at least one first conductive patch.

8. The antenna module of claim 7 , wherein the at least one non-conductive layer corresponds to a first non-conductive layer,

wherein at least one non-conductive layer located between the first layer and the third layer among the plurality of non-conductive layers corresponds to a second non-conductive layer, and

wherein at least one second cavity is formed in at least part of the second non-conductive layer.

9. The antenna module of claim 7 , wherein an opening is formed through the first layer and the plurality of non-conductive layers, and

wherein the third layer further includes a non-conductive material disposed in a region of the third layer corresponding to the opening.

10. The antenna module of claim 1 , wherein a distance between the first layer and the second layer is less than or equal to a specified level.

11. The antenna module of claim 1 , wherein the layer structure forms part of a printed circuit board, a flexible printed circuit, or a flexible printed circuit board.

12. The antenna, module of claim 1 , wherein the layer structure includes a first group of layers including conductive materials disposed in positions spaced apart from regions corresponding to the at least one first conductive patch when the layer structure is viewed in the first direction, and a second group of layers disposed to alternate with the first group of layers, the second group of layers including via-holes configured to make electrical connection between the conductive materials, and

wherein the via-holes are filled with a conductive material.

13. The antenna module of claim 1 , wherein the layer structure includes a first group of layers including conductive materials disposed in positions spaced apart from regions corresponding to the at least one first conductive patch by a specified distance when the layer structure is viewed in the first direction, and plated lines disposed to alternate with the first group of layers and configured to make electrical connection between the conductive materials.

14. The antenna module of claim 1 , wherein the layer structure further includes at least one adhesive layer disposed adjacent to the at least one first cavity in an opposite direction to the first direction.

15. An antenna module comprising:

a layer structure, wherein the layer structure includes:

a plurality of non-conductive layers having a first dissipation factor (Df) value greater than a specified value;

a first layer disposed between the plurality of non-conductive layers, the first layer including at least one first conductive patch;

a second layer disposed adjacent to the plurality of non-conductive layers in a first direction, the second layer including a ground; and

a feeding line configured to pass through at least one non-conductive layer located between the first layer and the second layer among the plurality of non-conductive layers and the second layer, the feeding line being electrically connected with the at least one first conductive patch; and

communication circuitry disposed adjacent to the layer structure in the first direction and configured to supply electric power to the at least one first conductive patch through the feeding line,

wherein an insulator having a second Df value less than the specified value is disposed in at least part of the at least one non-conductive layer through which the feeding line passes.