Antenna module

Patent metadata

Field	Value
Publication number	US-11949155-B2
Application number	US-202017773580-A
Country	US
Kind code	B2
Filing date	Oct 19, 2020
Priority date	Oct 31, 2019
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

Suggested is an antenna module which maximizes a characteristic of isolation between two radiation patterns located adjacent to each other by forming a ground wall, by means of through-holes, at the radiation patterns. The suggested antenna module comprises: a first radiation pattern disposed on the upper surface of a base substrate; a second radiation pattern disposed on the upper surface of the base substrate while being spaced away from the first radiation pattern; a plurality of first through-holes arranged in parallel with one side of the first radiation pattern facing the second radiation pattern; and a plurality of second through-holes arranged in parallel with one side of the second radiation pattern facing the first radiation pattern.

First claim

The invention claimed is:

1. An antenna module comprising:
a base substrate in which a ground is formed on a lower surface;
a first radiation pattern disposed on an upper surface of the base substrate;
a second radiation pattern disposed on the upper surface of the base substrate to be spaced apart from the first radiation pattern;
a plurality of first through-holes penetrating the base substrate and the first radiation pattern and disposed in parallel with one side of the first radiation pattern facing the second radiation pattern; and
a plurality of second through-holes penetrating the base substrate and the second radiation pattern and disposed in parallel with one side of the second radiation pattern facing the first radiation pattern.

2. The antenna module of claim 1 ,
wherein an area of the first radiation pattern is formed to be smaller than an area of the second radiation pattern.

3. The antenna module of claim 1 ,
wherein the plurality of first through-holes electrically connect the first radiation pattern to the ground.

4. The antenna module of claim 1 ,
wherein the plurality of second through-holes electrically connect the second radiation pattern to the ground.

5. The antenna module of claim 1 ,
further comprising: a power feeding pattern disposed on the upper surface of the base substrate and electrically connected to the first radiation pattern and the second radiation pattern.

6. The antenna module of claim 5 ,
wherein the power feeding pattern comprises
a first power feeding pattern electrically connected to the first radiation pattern;
a second power feeding pattern electrically connected to the second radiation pattern; and
a third power feeding pattern electrically connected to the first power feeding pattern and the second power feeding pattern.

7. The antenna module of claim 6 ,
wherein the base substrate comprises
a first base substrate in which the first radiation pattern and the second radiation pattern are formed on an upper surface; and
a second base substrate disposed on a lower surface of the first base substrate.

8. The antenna module of claim 7 ,
wherein the power feeding pattern further comprises
a first connection pattern disposed on the second base substrate to electrically connect the first radiation pattern and the first power feeding pattern;
a second connection pattern disposed on the second base substrate to electrically connect the second radiation pattern and the second power feeding pattern; and
a third connection pattern disposed on the second base substrate to electrically connect the first power feeding pattern and the second power feeding pattern.

9. The antenna module of claim 7 ,
wherein the base substrate further comprises
a third base substrate disposed on a lower surface of the second base substrate and having a ground disposed on a lower surface.

10. The antenna module of claim 5 ,
wherein the power feeding pattern comprises
a base part;
a first branching part branched from the base part and electrically connected to the first radiation pattern; and
a second branching part branched from the base part and electrically connected to the second radiation pattern.

Assignees

• Amotech Co Ltd

Inventors

• Jung Hongdae
• Seo Yunsik
• Baek Hyungil
• Park Hyunjoo

Classifications

• H01Q1/523 Primary

  between antennas of an array · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q9/0421 Primary

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

• H01Q5/30

  Arrangements for providing operation on different wavebands · CPC title

• H01Q1/46

  Electric supply lines or communication lines · CPC title