Antenna apparatus and electronic device

Patent metadata

Field	Value
Publication number	US-12334644-B2
Application number	US-202318341101-A
Country	US
Kind code	B2
Filing date	Jun 26, 2023
Priority date	Dec 28, 2020
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

Provided are an antenna apparatus and an electronic device. A first coupling gap is formed between one end of a second radiator and a first radiator, and the other end of the second radiator is provided with a first ground terminal. One end of a third radiator is connected to the first ground terminal, and the other end thereof extends in a direction away from the second radiator. The third radiator is provided with a second ground terminal spaced apart from the first ground terminal. At least part of the first radiator and the second radiator jointly generate a first resonance. A part of the third radiator located on a side of the second ground terminal away from the first ground terminal generates a second resonance.

First claim

What is claimed is:

1. An antenna apparatus, comprising:
a first radiator;
a second radiator, wherein a first coupling gap is provided between one end of the second radiator and the first radiator, and a first ground terminal is provided at the other end of the second radiator;
a first feeding source coupled to the first radiator, wherein the first feeding source is configured to provide a first excitation signal, wherein the first excitation signal is coupled to the second radiator through the first coupling gap, and is grounded through the first ground terminal, to excite the second radiator and at least part of the first radiator to jointly generate a first resonance;
a third radiator, wherein one end of the third radiator is connected to the first ground terminal, and the other end of the third radiator extends in a direction away from the second radiator, wherein the third radiator is provided with a second ground terminal spaced apart from the first ground terminal; and
a second feeding source, wherein the second feeding source is coupled to the third radiator on a side of the second ground terminal away from the first ground terminal, and the second feeding source is configured to provide a second excitation signal to excite a part of the third radiator located on the side of the second ground terminal away from the first ground terminal, to generate a second resonance.

2. The antenna apparatus of claim 1 , further comprising:
a first matching circuit, wherein one end of the first matching circuit is coupled to the third radiator through the second ground terminal, and the other end of the first matching circuit is grounded; and
wherein the first matching circuit is configured to short out a part of the second excitation signal.

3. The antenna apparatus of claim 1 , wherein a third ground terminal is provided at an end of the first radiator away from the second radiator, and the antenna apparatus further comprises:
a fourth radiator, wherein one end of the fourth radiator is connected to the third ground terminal, and the other end of the fourth radiator extends in a direction away from the third ground terminal;
a second matching circuit, wherein one end of the second matching circuit is coupled to the fourth radiator, and the other end of the second matching circuit is grounded;
a fifth radiator, wherein a second coupling gap is provided between one end of the fifth radiator and the fourth radiator, and the other end of the fifth radiator extends in a direction away from the fourth radiator;
a third feeding source coupled to the fifth radiator; and
a third matching circuit coupled between the third feeding source and the fifth radiator, wherein the third matching circuit is configured to perform impedance matching on an excitation signal provided by the third feeding source.

4. The antenna apparatus of claim 3 , wherein the antenna apparatus is adapted to operate in a standalone mode, and in the standalone mode, the third feeding source is configured to provide a third excitation signal, and the fifth radiator is configured to generate a third resonance under tuning of the third matching circuit.

5. The antenna apparatus of claim 4 , wherein the antenna apparatus is further adapted to operate in a non-standalone mode, and in the non-standalone mode, the third feeding source is configured to provide a fourth excitation signal, and the fifth radiator is configured to generate a fourth resonance under tuning of the third matching circuit;
wherein the fourth radiator is configured to generate a resonance have a same frequency range as the third resonance under tuning of the second matching circuit.

6. The antenna apparatus of claim 4 , wherein the first resonance, the second resonance, and the third resonance have a same frequency range.

7. The antenna apparatus of claim 1 , further comprising:
a fourth feeding source coupled to the second radiator, wherein the fourth feeding source is configured to provide a fifth excitation signal, and the fifth excitation signal is coupled to the first radiator through the first coupling gap, to excite at least part of the second radiator and at least part of the first radiator to jointly generate a fifth resonance.

8. The antenna apparatus of claim 7 , further comprising:
a first filter circuit having a first end and a second end, wherein the first end is coupled between the first feeding source and the first radiator, and the second end is grounded; and the first filter circuit is configured to short out the fifth excitation signal, for generation of the fifth resonance.

9. The antenna apparatus of claim 7 , further comprising:
a second filter circuit coupled between the fourth feeding source and the second radiator, wherein the second filter circuit is configured to provide an open circuit to the first excitation signal, for the generation of the first resonance.

10. The antenna apparatus of claim 7 , further comprising:
a fourth matching circuit coupled between the fourth feeding source and the second radiator, wherein the fourth matching circuit is configured to performing impedance matching on the fifth excitation signal.

11. The antenna apparatus of claim 1 , further comprising:
a fifth matching circuit coupled between the first feeding source and the first radiator, wherein the fifth matching circuit is configured to perform impedance matching on the first excitation signal.

12. The antenna apparatus of claim 1 , further comprising:
a sixth matching circuit coupled between the second feeding source and the third radiator, wherein the sixth matching circuit is configured to perform impedance matching on the second excitation signal.

13. An antenna apparatus, comprising:
a first radiator, configured to receive a first excitation signal;
a second radiator, wherein a first coupling gap is provided between the second radiator and the first radiator, and a first ground terminal is provided at an end of the second radiator away from the first coupling gap, wherein the first excitation signal is coupled to the second radiator through the first coupling gap, and is grounded through the first ground terminal, to excite at least part of the first radiator and the second radiator to jointly generate a first resonance; and
a third radiator, wherein the third radiator is connected to the second radiator at the first ground terminal, and the third radiator is provided with a second ground terminal spaced apart from the first ground terminal;
wherein the third radiator is configured to receive a second excitation signal on a side of the second ground terminal away from the first ground terminal, to excite a part of the third radiator to generate a second resonance.

14. An electronic device, comprising an antenna apparatus comprising:
a first radiator;
a second radiator, wherein a first coupling gap is provided between one end of the second radiator and the first radiator, and a first ground terminal is provided at the other end of the second radiator;
a first feeding source coupled to the first radiator, wherein the first feeding source is configured to provide a first excitation signal, wherein the first excitation signal is coupled to the second radiator through the first coupling gap, and is grounded through the first ground terminal, to excite at least part of the first radiator and the second radiator to jointly generate a first resonance;
a third radiator, wherein one end of the third radiator is connected to the first ground terminal, and the other end of the third radiator extends in a direction away from the second radiator, and wherein the third radiator is provi

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Wang Zedong

Classifications

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/243

  with built-in antennas · CPC title

• H01Q5/328

  between a radiating element and ground · CPC title

• H01Q5/307

  Individual or coupled radiating elements, each element being fed in an unspecified way · CPC title

• H01Q5/28

  Arrangements for establishing polarisation or beam width over two or more different wavebands · CPC title