Antenna module and electronic device

Patent metadata

Field	Value
Publication number	US-11735807-B2
Application number	US-202217671877-A
Country	US
Kind code	B2
Filing date	Feb 15, 2022
Priority date	Aug 16, 2019
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

An antenna module and an electronic device are provided. The antenna module includes: a substrate, including a floor, a first dielectric layer, and a second dielectric layer, where the first dielectric layer and the second dielectric layer are located on two sides of the floor, respectively; a millimeter wave antenna array, including N dipole antenna units, where the N dipole antenna units are successively disposed in the substrate at an interval along the substrate, and N is an integer greater than 1; a radio frequency integrated circuit, where the radio frequency integrated circuit is disposed on the first dielectric layer and is connected to feeding structures of the N dipole antenna units; and a non-millimeter wave antenna, where the non-millimeter wave antenna is disposed on the second dielectric layer.

First claim

The invention claimed is:

1. An antenna module, comprising:
a substrate, comprising a floor, a first dielectric layer, and a second dielectric layer, wherein the first dielectric layer and the second dielectric layer are located on two sides of the floor, respectively;
a millimeter wave antenna array, comprising N dipole antenna units, wherein the N dipole antenna units are successively disposed at an interval along the substrate, and N is an integer greater than 1;
a radio frequency integrated circuit, wherein the radio frequency integrated circuit is disposed on the first dielectric layer and is connected to feeding structures of the N dipole antenna units; and
a non-millimeter wave antenna, wherein the non-millimeter wave antenna is disposed on the second dielectric layer.

2. The antenna module according to claim 1 , wherein the non-millimeter wave antenna is flush with an outer surface of the second dielectric layer.

3. The antenna module according to claim 1 , wherein a type of the non-millimeter wave antenna is a patch antenna, a planar inverted-F antenna, or a loop antenna.

4. The antenna module according to claim 1 , wherein the antenna module further comprises a power management integrated circuit that is disposed on the first dielectric layer.

5. The antenna module according to claim 1 , further comprising a connector, wherein the connector is connected to the non-millimeter wave antenna and the radio frequency integrated circuit, respectively.

6. The antenna module according to claim 5 , wherein a length of the first dielectric layer is less than that of the floor, and the connector is disposed on the floor.

7. The antenna module according to claim 1 , wherein the dipole antenna unit comprises:
a vertically polarized dipole antenna, comprising a first antenna branch and a second antenna branch, wherein the first antenna branch and the second antenna branch are disposed in the substrate at an interval, either of the first antenna branch or the second antenna branch and the floor are disposed at an interval, and the first antenna branch and the second antenna branch are connected to the radio frequency integrated circuit through a first feeding structure; and
a reflector, wherein the reflector comprises several reflection pillars that are disposed in the substrate at an interval along a parabola, wherein
the first antenna branch and the second antenna branch are both disposed on a side where a focal point of the parabola is located.

8. The antenna module according to claim 7 , wherein the dipole antenna unit further comprises:
a horizontally polarized dipole antenna, comprising a third antenna branch and a fourth antenna branch, wherein the third antenna branch and the fourth antenna branch are disposed in the substrate at an interval, the third antenna branch and the fourth antenna branch are both located in a plane where the floor is located, either of the third antenna branch or the fourth antenna branch and the floor are disposed at an interval, and the third antenna branch and the fourth antenna branch are connected to the radio frequency integrated circuit through a second feeding structure, wherein
the third antenna branch and the fourth antenna branch are both located on a side where the focal point of the parabola is located; and
the first antenna branch and the second antenna branch are respectively located on two sides of a plane where the third antenna branch and the fourth antenna branch are located, and the third antenna branch and the fourth antenna branch are respectively located on two sides of the first antenna branch and the second antenna branch.

9. The antenna module according to claim 8 , wherein
the first feeding structure comprises:
a first feeder, wherein the first antenna branch is connected to the radio frequency integrated circuit through the first feeder; and
a second feeder, wherein the second antenna branch is connected to a pin of the radio frequency integrated circuit through the second feeder; and
the second feeding structure comprises:
a third feeder, wherein the third antenna branch is connected to a pin of the radio frequency integrated circuit through the third feeder; and
a fourth feeder, wherein the fourth antenna branch is connected to a pin of the radio frequency integrated circuit through the fourth feeder.

10. The antenna module according to claim 9 , wherein a side edge of the floor facing the third antenna branch and the fourth antenna branch is a concave side.

11. The antenna module according to claim 10 , wherein a shape of the concave side edge is an arc; or
the concave side edge comprises a first straight segment located in a middle region, and a second straight segment and a third straight segment located in two side regions, wherein an included angle between the second straight segment and the first straight segment is an obtuse angle, and an included angle between the third straight segment and the first straight segment is an obtuse angle.

12. The antenna module according to claim 11 , wherein the floor is provided with a first feeder slot and a second feeder slot; and
the third feeder extends through the first feeder slot and is connected to the radio frequency integrated circuit, and the fourth feeder extends through the second feeder slot and is connected to the radio frequency integrated circuit, wherein there is a gap between either of the third feeder or the fourth feeder and the floor.

13. The antenna module according to claim 9 , wherein the third feeder comprises a first segment located in the first feeder slot and a second segment located between the third antenna branch and the floor, wherein a width of the first segment is smaller than that of the second segment, and a position of the second segment adjacent to the first segment is provided with a first corner cut; and
the fourth feeder comprises a third segment located in the second feeder slot and a fourth segment located between the fourth antenna branch and the floor, wherein a width of the third segment is smaller than that of the fourth segment, and a position of the fourth segment adjacent to the third segment is provided with a second corner cut.

14. The antenna module according to claim 13 , wherein a position of the second segment adjacent to the third antenna branch is provided with a third corner cut; and
a position of the fourth segment adjacent to the fourth antenna branch is provided with a fourth corner cut.

15. The antenna module according to claim 9 , wherein a shape of the third antenna branch is an isosceles triangle, and an apex angle of the third antenna branch is connected to the third feeder; and
a shape of the fourth antenna branch is an isosceles triangle, and an apex angle of the fourth antenna branch is connected to the fourth feeder.

16. The antenna module according to claim 8 , wherein the antenna module further comprises N directors, wherein the N directors are disposed in the substrate and the N dipole antenna units are disposed in one-to-one correspondence with the N directors.

17. The antenna module according to claim 16 , wherein the director comprises a first vertical directing branch, a second vertical directing branch, a first horizontal directing branch, and a second horizontal directing branch, wherein the first vertical directing branch, the second vertical directing branch, the first horizontal directing branch, and the second horizontal directing branch are disposed at intervals.

18. An electronic device, comprising an antenna module, wherein the antenna module comprise

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Huang Huan-Chu
• Jian Xianjing
• Ma Rongjie
• Wang Yijin

Classifications

• H01Q1/2283 Primary

  mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package · CPC title

• H01Q19/17

  the primary radiating source comprising two or more radiating elements (H01Q19/15, H01Q25/00 take precedence) · CPC title

• H01Q21/0025

  Modular arrays · CPC title

• H01Q1/48 Primary

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q21/24 Primary

  Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} · CPC title