Antenna and electronic device including the same

Patent metadata

Field	Value
Publication number	US-11862876-B2
Application number	US-202017014471-A
Country	US
Kind code	B2
Filing date	Sep 8, 2020
Priority date	Sep 6, 2019
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

An electronic device is provided. The device includes a housing including a first cover having a first dielectric constant, and an antenna structure disposed in an inner space of the housing. The antenna structure may include a PCB, an antenna element disposed in the PCB to form a beam pattern in a specific direction, a first dielectric structure disposed on a radiation path of the beam pattern, formed integrally with or combined with the PCB, and having a second dielectric constant equal to or different from the first dielectric constant, and a second dielectric structure disposed on the radiation path between the first dielectric structure and the first cover, and having a third dielectric constant higher than the first dielectric constant and the second dielectric constant. The electronic device may further include a wireless communication circuit configured to transmit and/or receive a radio signal through the antenna element.

First claim

What is claimed is:

1. An electronic device comprising:
a housing comprising a first cover facing a first direction, a second cover facing a second direction opposite to the first cover and lateral member surrounding an inner space between the first cover and the second cover, and the first cover having a first dielectric constant; and
an antenna structure disposed in the inner space of the housing and comprising:
a printed circuit board (PCB);
at least one antenna element disposed in the PCB to form a beam pattern in a third direction facing the lateral member and being perpendicular to the first direction;
a first dielectric structure disposed on a radiation path of the beam pattern, formed integrally with or combined with the PCB, and having a second dielectric constant, the first dielectric structure being spaced apart from the lateral member;
a second dielectric structure disposed on the radiation path between the first dielectric structure and the first cover, and having a third dielectric constant higher than the first dielectric constant and the second dielectric constant; and
a wireless communication circuit configured to at least one of transmit or receive a radio signal through the at least one antenna element,

wherein at least a part of the second dielectric structure is disposed between the PCB and the lateral member.

2. The electronic device of claim 1 , wherein the second dielectric structure comprises a high-dielectric injected portion injected into the first dielectric structure on the radiation path.

3. The electronic device of claim 2 , wherein the third dielectric constant is determined based on at least one of a width, a length, or a thickness of the high-dielectric injected portion.

4. The electronic device of claim 2 , wherein the high-dielectric injected portion is disposed to have an upper surface that coincides with an upper surface of the first dielectric structure.

5. The electronic device of claim 1 , wherein the second dielectric structure comprises a high-dielectric patch attached to an upper surface of the first dielectric structure on the radiation path.

6. The electronic device of claim 1 , wherein the PCB is supported at least in part by the first dielectric structure.

7. The electronic device of claim 1 ,
wherein the first dielectric structure comprises a low-dielectric structure disposed on both sides of the second dielectric structure, and
wherein the low-dielectric structure has a fourth dielectric constant lower than the third dielectric constant.

8. The electronic device of claim 7 , wherein the low-dielectric structure is formed as a recess in the first dielectric structure.

9. The electronic device of claim 8 , wherein the fourth dielectric constant is determined based on at least one of a width, a length, or a depth of the recess.

10. The electronic device of claim 7 , wherein the low-dielectric structure comprises periodic structures formed at a predetermined depth in the first dielectric structure.

11. The electronic device of claim 10 , wherein the periodic structures comprise air holes formed at the predetermined depth in the first dielectric structure.

12. The electronic device of claim 11 ,
wherein the periodic structures comprise a filling material filled in the air holes, and
wherein the filling material has a dielectric constant lower than the second dielectric constant.

13. The electronic device of claim 10 , wherein the fourth dielectric constant is determined based on at least one of a distance between the periodic structures, a size of each periodic structure, a number of arrangements of the periodic structures, or an arrangement density of the periodic structures.

14. The electronic device of claim 1 , further comprising:
a display disposed in the inner space to be visible at least in part from outside through the second cover.

15. An electronic device comprising:
a housing comprising a first cover facing a first direction, a second cover facing a second direction opposite to the first cover and lateral member surrounding an inner space between the first cover and the second cover, and the first cover having a first dielectric constant; and
an antenna structure disposed in the inner space of the housing and comprising:
a printed circuit board (PCB);
at least one antenna element disposed in the PCB to form a beam pattern in a third direction facing the lateral member and being perpendicular to the first direction; and
a dielectric structure disposed on a radiation path of the beam pattern, formed integrally with or combined with the PCB, the dielectric structure being spaced apart from the lateral member, the dielectric structure comprising:
a first area corresponding to the radiation path, and having the first dielectric constant, and
a second area including a low-dielectric structure disposed on both sides of the first area and having a second dielectric constant lower than the first dielectric constant; and

a wireless communication circuit configured to at least one of transmit or receive a radio signal through the at least one antenna element,
wherein at least a part of the first area is disposed between the PCB and the lateral member.

16. The electronic device of claim 15 , wherein the low-dielectric structure comprises a recess formed to be lower than an upper surface of the dielectric structure.

17. The electronic device of claim 16 , wherein the second dielectric constant is determined based on at least one of a width, a length, or a depth of the recess.

18. The electronic device of claim 15 , wherein the low-dielectric structure comprises periodic structures formed at a predetermined depth from an upper surface of the dielectric structure.

19. The electronic device of claim 18 , wherein the second dielectric constant is determined based on at least one of a distance between the periodic structures, a size of each periodic structure, a number of arrangements of the periodic structures, or an arrangement density of the periodic structures.

20. The electronic device of claim 15 ,
wherein the electronic device further comprises a high-dielectric structure disposed on the radiation path between the dielectric structure and the first cover, and
wherein the high-dielectric structure has a third dielectric constant higher than the first dielectric constant and a dielectric constant of the first cover.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Dongyeon
• Kim Hosaeng
• Park Seongjin
• Yun Sumin
• Jeong Myunghun
• Jong Jehun
• Jo Jaehoon

Classifications

• H01Q9/0485 Primary

  Dielectric resonator antennas · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q3/22

  varying the orientation in accordance with variation of frequency of radiated wave · CPC title

• H01Q9/0407

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title

• H01Q3/36

  with variable phase-shifters · CPC title