CN-119447815-B - Antenna assembly and electronic equipment

CN119447815BCN 119447815 BCN119447815 BCN 119447815BCN-119447815-B

Abstract

The application provides an antenna assembly and electronic equipment. The antenna assembly comprises a first radiator and a first feed source, wherein the first feed source is connected with a first feed point positioned on the first radiator, the first feed source excites the first radiator to resonate in a first target frequency band, the second radiator, the second feed source and an adjusting circuit are respectively connected with a second feed point and a third feed point positioned on the second radiator, the second radiator and the first radiator are coupled through a gap between a second free end and a first free end, the second feed source excites the second radiator and/or the first radiator to resonate in a second target frequency band, the adjusting circuit is used for adjusting the path length of resonant current corresponding to the second target frequency band and the path of resonant current corresponding to the second target frequency band is different from the path of resonant current corresponding to the first target frequency band, so that the radiation efficiency of the first target frequency band and the radiation efficiency of the second target frequency band are effectively improved, and the communication performance is improved.

Inventors

ZHANG YUNFAN
LI ZONGSHANG

Assignees

OPPO广东移动通信有限公司

Dates

Publication Date: 20260512
Application Date: 20230731

Claims (9)

1. An antenna assembly, comprising: The first antenna unit comprises a first radiator and a first feed source, wherein the first radiator is provided with a first grounding end, a first free end and a first feed point, the first feed point is positioned between the first grounding end and the first free end, the first feed source is connected with the first feed point, and the first feed source excites the first radiator to resonate in a first target frequency band; The second antenna unit comprises a second radiator, a second feed source and an adjusting circuit, wherein the second radiator is provided with a second grounding end and a second free end, the second free end and the first free end are arranged at intervals to form a gap, and the second radiator is coupled with the first radiator through the gap; Wherein the second radiator is also provided with a second feeding point and a third feeding point, the second feeding point and the third feeding point are positioned between the second free end and the second grounding end, the second feed source is connected with the second feeding point, the regulating circuit is connected with the third feeding point, the second feed source excites the second radiator and/or the first radiator to resonate in a second target frequency band, the regulating circuit is used for regulating and controlling the path length of resonant current corresponding to the second target frequency band, the path of resonant current corresponding to the first target frequency band is different from the path of resonant current corresponding to the second target frequency band, the first target frequency band comprises a GPS-L1 frequency band and a WIFI-2.4 frequency band, the second target frequency band comprises a UHB frequency band and a WIFI-5G frequency band, the antenna corresponding to the second feed source is provided with a second resonance mode, the second resonance mode comprises a fifth sub-resonance mode, a sixth sub-resonance mode and a seventh sub-resonance mode, the fifth sub-resonance mode is a three-quarter wavelength mode from the first grounding end to the gap, the sixth sub-resonance mode is a one-quarter wavelength mode from the second feed source to the gap, the seventh sub-resonance mode is a mixed mode of the three-quarter wavelength mode from the second grounding end to the gap and the three-quarter wavelength mode from the first grounding end to the gap, and the fifth sub-resonance mode, the sixth sub-resonance mode and the seventh sub-resonance mode are all used for supporting the WIFI-5G frequency band in the second target frequency band; The second antenna unit further comprises a third feed source, the third feed source is connected with the second feed point, the third feed source excites the second radiator to resonate in a third target frequency band, and the third target frequency band comprises a GPS-L5 frequency band or a low-frequency LB frequency band.
2. The antenna assembly of claim 1, wherein the third feed point is located between the second feed point and the second ground.
3. The antenna assembly of claim 1, wherein the first antenna element further comprises a first matching circuit, the first matching circuit being respectively connected to the first feed point and the first feed source, the first matching circuit being configured to impedance match an excitation signal transmitted by the first feed source to excite the first radiator to resonate in the first target frequency band; The second antenna unit further comprises a second matching circuit, the second matching circuit is respectively connected with the second feed point and the second feed source, and the second matching circuit is used for carrying out impedance matching on excitation signals transmitted by the second feed source so as to excite the second radiator and/or the first radiator to resonate in the second target frequency band; The second antenna unit further comprises a third matching circuit, the third matching circuit is respectively connected with the second feed point and the third feed source, and the third matching circuit is used for carrying out impedance matching on excitation signals transmitted by the third feed source so as to excite the second radiator to resonate in the third target frequency band.
4. The antenna assembly of claim 1, wherein the antenna corresponding to the first feed has a first resonant mode, the first resonant mode including a first sub-resonant mode and a second sub-resonant mode, the first sub-resonant mode being a quarter wavelength mode from the first ground to the slot, the second sub-resonant mode being a quarter wavelength mode from the first feed to the slot, the first sub-resonant mode being for supporting the GPS-L1 band in the first target band, the second sub-resonant mode being for supporting the WIFI-2.4G band in the first target band.
5. The antenna assembly of claim 1, wherein the second resonant mode further comprises a third sub-resonant mode and a fourth sub-resonant mode, the third sub-resonant mode being a quarter wavelength mode of the tuning circuit to the slot, the fourth sub-resonant mode being a three-quarter wavelength mode of the second ground to the slot, the third sub-resonant mode and the fourth sub-resonant mode for supporting the UHB band in the second target band.
6. The antenna assembly of claim 1, wherein the antenna corresponding to the third feed has a third resonant mode, the third resonant mode being configured to support the third target frequency band, the third resonant mode including a quarter-wavelength mode from the second ground to the slot.
7. The antenna assembly of claim 1, wherein the wire between the second feed and the second feed point is arranged such that a first direction of a feed current of the second feed to the second feed point is the same as a direction of a resonant current of the second feed point to the slot.
8. An electronic device comprising the antenna assembly of any one of claims 1-7.
9. The electronic device of claim 8, wherein a first antenna element in the antenna assembly is disposed at an upper corner of the electronic device and a second antenna element in the antenna assembly is disposed at a top of the electronic device.

Description

Antenna assembly and electronic equipment Technical Field The present application relates to the field of communications technologies, and in particular, to an antenna assembly and an electronic device. Background With the development of communication technology, a plurality of antennas are required to be arranged in an electronic device such as a mobile phone. With the miniaturization development of electronic devices such as mobile phones and the like and the strong communication functions, how to arrange multiple antennas in a smaller space becomes a key problem. The related art proposes an antenna assembly in which a plurality of antennas can be provided in a common form to compress the space occupied by the antennas while achieving multi-functional wireless communication. The communication performance of the antenna assembly in the related art needs to be further improved. Disclosure of Invention The application provides an antenna assembly and electronic equipment. Various aspects of embodiments of the application are described below. The first antenna unit comprises a first radiator and a first feed source, wherein the first radiator is provided with a first grounding end, a first free end and a first feed point, the first feed point is located between the first grounding end and the first free end, the first feed source is connected with the first feed point, the first feed source excites the first radiator to resonate in a first target frequency band, the second antenna unit comprises a second radiator, a second feed source and a regulating circuit, the second radiator is provided with a second grounding end and a second free end, the second free end and the first free end are arranged at intervals to form a gap, the second radiator and the first radiator are coupled through the gap, the second radiator is further provided with a second feed point and a third feed point, the second feed point and the third feed point are located between the second free end and the second grounding end, the second feed source is connected with the second feed source, the second feed source corresponds to a resonant frequency band or a current regulating path, and the resonant frequency band corresponds to the second feed point and the second feed source, the resonant frequency band is not connected with the first feed path, and the resonant frequency band is adjusted, and the current path corresponds to the resonant frequency band. In a second aspect, there is provided an electronic device comprising an antenna assembly as described in the first aspect. The embodiment of the application provides an antenna assembly, which comprises a first antenna unit and a second antenna unit, wherein the first antenna unit comprises a first radiator and a first feed source, the first feed source is connected with a first feed point positioned between a first grounding end and a first free end of the first radiator, the first feed source excites the first radiator to resonate in a first target frequency band, the second antenna unit comprises a second radiator, a second feed source and an adjusting circuit, the second feed source and the adjusting circuit are respectively connected with a second feed point and a third feed point positioned between a second free end and a second grounding end of the second radiator, the second radiator and the first radiator are coupled through a gap between the second free end and the first free end, the second feed source excites the second radiator and/or the first radiator to resonate in a second target frequency band, the adjusting circuit is used for adjusting and controlling the path length of resonant current corresponding to the second target frequency band, and the path of resonant current corresponding to the first target frequency band is different from the path of resonant current corresponding to the second target frequency band. The antenna assembly is small in size and small in occupied space, and can effectively improve the radiation efficiency of the first target frequency band and the second target frequency band, so that the communication performance is improved. Drawings Fig. 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application. Fig. 2 is a graph of S parameters of ANT1 in fig. 1. Fig. 3 (a) is a schematic diagram of one resonance mode of the ANT1 of fig. 1. Fig. 3 (b) is a schematic diagram of another resonance mode of the ANT1 of fig. 1. Fig. 3 (c) is a schematic diagram of another resonance mode of the ANT1 of fig. 1. Fig. 4 is a graph of S parameters of ANT2 in fig. 1. Fig. 5 (a) is a schematic diagram of one resonance mode of the ANT2 of fig. 1. Fig. 5 (b) is a schematic diagram of another resonance mode of the ANT2 of fig. 1. Fig. 5 (c) is a schematic diagram of another resonance mode of the ANT2 of fig. 1. Fig. 5 (d) is a schematic diagram of another resonance mode of the ANT2 of fig. 1. Fig. 5 (e) is a schemati