Antenna apparatus and terminal device

Patent metadata

Field	Value
Publication number	US-10985458-B2
Application number	US-201916360739-A
Country	US
Kind code	B2
Filing date	Mar 21, 2019
Priority date	Sep 25, 2017
Publication date	Apr 20, 2021
Grant date	Apr 20, 2021

Abstract

An antenna apparatus includes a first radiation area, a phase adjustment area and a second radiation area. The first radiation area is disposed opposite to the second radiation area. The first radiation area is connected to one end of the phase adjustment area. The other end of the phase adjustment area is connected to the second radiation area. The first radiation area includes a feeding point of the antenna apparatus. The second radiation area includes a ground point of the antenna apparatus. The phase adjustment area is used to adjust a phase of a signal fed by the feeding point, to change a direction of a space electromagnetic field formed by an electromagnetic signal radiated by each of the first radiation area and the second radiation area.

First claim

What is claimed is:

1. An antenna apparatus, comprising an antenna body, wherein the antenna body comprises:
a first radiation area, comprising a first radiation section and a feeding point;
a second radiation area, comprising a second radiation section and a ground point; and
a phase adjustment area, wherein the phase adjustment area is connected between the first radiation area and the second radiation area, and the phase adjustment area is configured to adjust a phase of a signal fed by the feeding point, to change a direction of a space electromagnetic field formed by an electromagnetic signal radiated by each of the first radiation section and the second radiation section.

2. The antenna apparatus according to claim 1 , wherein the antenna apparatus further comprises an antenna debug circuit, wherein a first output end of the antenna debug circuit is connected to the feeding point, a second output end of the antenna debug circuit is connected to the ground point, and the antenna debug circuit is configured to adjust the phase, an amplitude, or a frequency of the signal fed by the feeding point, wherein the adjustment of the phase, the amplitude, or the frequency of the signal fed by the feeding point changes the direction or strength of the space electromagnetic field formed by the electromagnetic signal radiated by each of the first radiation section and the second radiation section.

3. The antenna apparatus according to claim 2 , wherein the antenna debug circuit comprises: a phase adjustable device, a right-to-left rotation switcher, a microstrip, a non-standard impedance transmission line, a power amplifier, or a phase shifter.

4. The antenna apparatus according to claim 1 , wherein the phase adjustment area comprises a first section, a second section, and a third section that are successively connected, wherein a first end of the first section is connected to the first radiation area, and the first end of the first section is physically remote from the second section, and wherein a first end of the third section is connected to the second radiation area, and the first end of the third section is physically remote from the second section.

5. The antenna apparatus according to claim 4 , wherein a width of the first section is different from a width of the third section, and wherein the first section and the third section are configured to adjust a phase of a signal in the phase adjustment area and reduce a radiation capability of a transmission line.

6. The antenna apparatus according to claim 1 , wherein the first radiation section comprises a first connection section and N bending sections, a first end of the first connection section is connected to a first end of the phase adjustment area, a second end of the first connection section is connected to the N bending sections, the N bending sections are bent from a third end of the first connection section, the third end of the first connection section is physically remote from the phase adjustment area, and N is a positive integer.

7. The antenna apparatus according to claim 6 , wherein the third end of the first connection section is the same as the first end of the first connection section or the second end of the first connection section.

8. The antenna apparatus according to claim 7 , wherein each of the N bending sections comprises a respective connection section, the respective connection section of each of the N bending sections are successively connected to each other, and directions of any two adjacent connection sections are different, and wherein the N bending sections are configured to generate space electromagnetic fields in different directions.

9. The antenna apparatus according to claim 1 , wherein the second radiation section comprises a second connection section and M bending sections, a first end of the second connection section is connected to a first end of the phase adjustment area, a second end of the second connection section is connected to the M bending sections, the M bending sections are bent from a third end of the second connection section, the third end of the second connection section is physically remote from the phase adjustment area, and M is a positive integer.

10. The antenna apparatus according to claim 9 , wherein the third end of the second connection section is the same as the first end of the second connection section or the second end of the second connection section.

11. The antenna apparatus according to claim 9 , wherein each of the M bending sections comprises a connection section, the respective connection section of each of the M bending sections are successively connected to each other, and directions of any two adjacent connection sections are different, and wherein the M bending sections are configured to generate space electromagnetic fields in different directions.

12. A terminal device, comprising an antenna apparatus, wherein the antenna apparatus comprises an antenna body, and wherein the antenna body comprises:
a first radiation area, comprising a first radiation section and a feeding point;
a second radiation area, comprising a second radiation section and a ground point; and
a phase adjustment area, wherein the phase adjustment area is connected between the first radiation area and the second radiation area, and the phase adjustment area is configured to adjust a phase of a signal fed by the feeding point, to change a direction of a space electromagnetic field formed by an electromagnetic signal radiated by each of the first radiation section and the second radiation section.

13. The terminal device according to claim 12 , wherein the antenna apparatus further comprises an antenna debug circuit, wherein a first output end of the antenna debug circuit is connected to the feeding point, a second output end of the antenna debug circuit is connected to the ground point, and the antenna debug circuit is configured to adjust the phase, an amplitude, or a frequency of the signal fed by the feeding point, wherein the adjustment of the phase, the amplitude, or the frequency of the signal fed by the feeding point changes the direction or strength of the space electromagnetic field formed by the electromagnetic signal radiated by each of the first radiation section and the second radiation section.

14. The terminal device according to claim 13 , wherein the antenna debug circuit comprises: a phase adjustable device, a right-to-left rotation switcher, a microstrip, a non-standard impedance transmission line, a power amplifier, or a phase shifter.

15. The terminal device according to claim 12 , wherein the phase adjustment area comprises a first section, a second section, and a third section that are successively connected, wherein a first end of the first section is connected to the first radiation area, and the first end of the first section is physically remote from the second section, and wherein a first end of the third section is connected to the second radiation area, and the first end of the third section is physically remote from the second section.

16. The terminal device according to claim 15 , wherein a width of the first section is different from a width of the third section, and wherein the first section and the third section are configured to adjust a phase of a signal in the phase adjustment area and reduce a radiation capability of a transmission line.

17. The terminal device according to claim 12 , wherein the first radiation section comprises a first connection section and N bending sections, a first end of the first connection section is connected to a first end of the

Assignees

• Huawei Tech Co Ltd

Inventors

• Pan Xin

Classifications

• H01Q1/2283

  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

• H01Q25/005

  providing two patterns of opposite direction; back to back antennas (H01Q25/004 takes precedence) · CPC title

• H01Q5/371

  Branching current paths · CPC title

• H01Q3/24

  varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching · CPC title

• H01Q3/2605

  Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays · CPC title