Antenna apparatus

Patent metadata

Field	Value
Publication number	US-11894614-B2
Application number	US-202117231345-A
Country	US
Kind code	B2
Filing date	Apr 15, 2021
Priority date	Oct 16, 2020
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

An antenna apparatus includes: a ground plane including first sides parallel to a first direction and second sides parallel to a second direction, on a plane formed in the first and second directions; a dielectric layer disposed on the ground plane in a third direction; an antenna patch overlapping the ground plane in the third direction; and vias connected to the ground plane and passing through at least a portion of the dielectric layer. Edges of the vias at least partially overlap the first sides of the ground plane in the third direction.

First claim

What is claimed is:

1. An antenna apparatus, comprising:
a ground plane including first sides parallel to a first direction and second sides parallel to a second direction, on a plane formed in the first direction and the second direction;
a dielectric layer disposed on the ground plane in a third direction;
an antenna patch overlapping the ground plane in the third direction; and
vias connected to the ground plane and configured to pass through at least a portion of the dielectric layer,
wherein edges of the vias at least partially overlap the first sides of the ground plane in a top view of the plane formed in the first direction and the second direction, and
wherein a length of each of the first sides in the first direction is greater than a length of each of the second sides in the second direction.

2. The antenna apparatus of claim 1 ,
wherein a plurality of first vias of the vias are disposed to be adjacent to portions at which the first sides of the ground plane and the second sides of the ground plane cross each other.

3. The antenna apparatus of claim 2 , wherein the plurality of first vias do not overlap the antenna patch along the third direction.

4. The antenna apparatus of claim 3 , wherein the antenna patch includes:
a first antenna patch disposed on the dielectric layer along the third direction;
a second antenna patch overlapping the first antenna patch in the third direction; and
a third antenna patch disposed on a same layer as the second antenna patch, and disposed around the second antenna patch, and
wherein the plurality of first vias do not overlap the first antenna patch and the second antenna patch in the third direction.

5. The antenna apparatus of claim 2 , further comprising:
a first feed via and a second feed via that pass through at least a portion of the dielectric layer in the third direction and are spaced apart from a center of the ground plane in the second direction and the first direction,
wherein the antenna apparatus is configured such that a first signal having a first polarization is transmitted and received by an electrical signal applied to the first feed via, and a second signal having a second polarization is transmitted and received by an electrical signal applied to the second feed via.

6. The antenna apparatus of claim 2 , wherein:
the plurality of first vias are connected to the ground plane, pass through at least a portion of the dielectric layer, and are disposed to be spaced apart from a plurality of second vias of the vias in a direction parallel to the first direction.

7. The antenna apparatus of claim 6 , wherein edges of the plurality of first vias at least partially overlap the first sides of the ground plane in the third direction.

8. The antenna apparatus of claim 7 , wherein the antenna patch includes:
a first antenna patch disposed on the dielectric layer in the third direction;
a second antenna patch overlapping the first antenna patch along in third direction; and
a third antenna patch disposed on a same layer as the second antenna patch and disposed around the second antenna patch, and
wherein the plurality of first vias do not overlap the first antenna patch and the second antenna patch in the third direction.

9. The antenna apparatus of claim 8 , wherein the plurality of second vias at least partially overlap the third antenna patch in the third direction.

10. The antenna apparatus of claim 7 , wherein a first distance between the plurality of second vias and the plurality of first vias in a direction parallel to the first direction is not greater than a minimum distance between the plurality of first vias and the antenna patch in the direction parallel to the first direction.

11. The antenna apparatus of claim 1 , wherein the dielectric layer includes a first edge parallel to the first direction and a second edge parallel to the second direction, and
wherein a width of the first edge is greater than a width of the second edge.

12. The antenna apparatus of claim 1 , wherein a top surface of the vias is disposed below the antenna patch when viewed in the third direction.

13. An antenna apparatus, comprising:
a ground plane including first sides parallel to a first direction and second sides parallel to a second direction, on a plane formed in the first direction and the second direction;
a dielectric layer overlapping the ground plane in a third direction;
an antenna patch overlapping the ground plane in the third direction;
a plurality of first vias configured to pass through at least a portion of the dielectric layer and connected to the ground plane; and
a plurality of second vias disposed to be spaced apart from the plurality of first vias in the first direction,
wherein a first distance between the plurality of first vias and the plurality of second vias in a direction parallel to the first direction is not greater than a minimum distance between the plurality of second vias and the antenna patch in the direction parallel to the first direction,
wherein edges of the first vias and the second vias at least partially overlap the first sides of the ground plane in a top view of the plane formed in the first and second directions,
wherein the dielectric layer includes a first edge parallel to the first direction and a second edge parallel to the second direction, and
wherein a length of each of the first sides in the first direction is longer than a length of each of the second sides in the second direction.

14. The antenna apparatus of claim 13 , wherein the plurality of first vias do not overlap the antenna patch in the third direction.

15. The antenna apparatus of claim 14 , further comprising:
a first feed via and a second feed via that pass through at least a portion of the dielectric layer in the third direction and are spaced from a center of the ground plane in the second direction and the first direction,
wherein the antenna patch includes:
a first antenna patch coupled with the first feed via and the second feed via;
a second antenna patch overlapping the first antenna patch in the third direction; and
a third antenna patch disposed on a same layer as the second antenna patch and disposed around the second antenna patch,

wherein the plurality of first vias do not overlap the first antenna patch and the second antenna patch in the third direction, and
wherein the plurality of second vias do not overlap the first antenna patch and the second antenna patch in the third direction.

16. The antenna apparatus of claim 14 , wherein the plurality of second vias at least partially overlap the third antenna patch in the third direction.

17. The antenna apparatus of claim 13 ,
wherein a width of the first edge is greater than a width of the second edge.

18. The antenna apparatus of claim 13 , further comprising:
a first feed via and a second feed via that pass through at least a portion of the dielectric layer in the third direction and are spaced from a center of the ground plane in the second direction and the first direction,
wherein the antenna apparatus is configured such that a first signal having a first polarization is transmitted and received by an electrical signal applied to the first feed via, and a second signal having a second polarization is transmitted and received by an electrical signal applied to the second feed via.

19. The antenna apparatus of claim 13 , wherein a number of the plurality of first vias and a number of the plurality of second vias are the same.

20. The antenna a

Assignees

• Samsung Electro Mech
• Research & Business Found Sungkyunkwan Univ

Inventors

• So Won Wook
• Ryoo Jeongki
• Lee Woncheol
• Hur Youngsik
• Hwang Keum Cheol
• Kim Nam Heung
• Kim Yong-Serk

Classifications

• H01Q21/065 Primary

  Patch antenna array · CPC title

• H01Q5/371

  Branching current paths · CPC title

• H01Q9/0421

  with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence) · CPC title

• H01Q1/48 Primary

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q9/0414 Primary

  in a stacked or folded configuration · CPC title