CN-122026104-A - Antenna assembly, electronic device main body, electronic device, storage medium, and control method for electronic device

Abstract

An antenna assembly, an electronic device main body, an electronic device, a storage medium and a control method of the electronic device, wherein the antenna assembly comprises a circuit board, a main radiator, a parasitic radiator and a switch circuit, the main radiator is connected with a feed circuit of the circuit board, the parasitic radiator is connected with the switch circuit, the switch circuit is used for enabling the main radiator to feed the parasitic radiator under a conduction condition, and the switch circuit is used for enabling the main radiator not to feed the parasitic radiator under a disconnection condition. The parasitic radiator is controlled by the switch circuit, and the switch circuit can enable the main radiator to feed the parasitic radiator, so that the electric length of the antenna assembly can be increased, and the antenna efficiency of the antenna assembly can be improved. In some application scenarios, if the parasitic radiator participates in radiation, the antenna performance may be deteriorated, and the parasitic radiator may not participate in radiation of wireless signals through the switch circuit, so that the antenna assembly may maintain better antenna performance in various application scenarios.

Inventors

• LI MINGJIE
• YAO YULIANG
• LIU BING
• GAO JIANMING
• ZHAO LEI
• WANG CHENG

Assignees

• 华为技术有限公司

Dates

Publication Date

20260512

Application Date

20250103

Claims (20)

1. 1. The antenna assembly is characterized by comprising a circuit board, a main radiator, a parasitic radiator and a switch circuit, wherein the main radiator is connected with a feed circuit of the circuit board, the parasitic radiator is connected with the switch circuit, the switch circuit is used for feeding the parasitic radiator under a conduction condition, and the switch circuit is used for not feeding the parasitic radiator under a disconnection condition.
2. 2. The antenna assembly of claim 1 wherein the parasitic radiator is spaced apart from the main radiator, the main radiator coupling feeds the parasitic radiator, the switching circuit is connected between ground and the parasitic radiator, the main radiator is grounded.
3. 3. The antenna assembly of claim 2, wherein the switching circuit is connected between a ground point of the circuit board and the parasitic radiator.
4. 4. The antenna assembly of claim 1, wherein the switching circuit is electrically connected between the parasitic radiator and the main radiator.
5. 5. The antenna assembly of claim 4 wherein the parasitic radiator is not grounded.
6. 6. The antenna assembly of any of claims 1-5, wherein the parasitic radiator has a semi-enclosed slot.
7. 7. The antenna assembly of any of claims 1-5, wherein the parasitic radiator comprises a first portion and a second portion, the first portion being spaced apart from the second portion, the first portion and the second portion each being connected to the switching circuit.
8. 8. The antenna assembly of any of claims 1-7, wherein the primary radiator is wrapped around a circle, the circuit board and the parasitic radiator being within an area surrounded by the primary radiator.
9. 9. The antenna assembly of any one of claims 1-8, wherein the switching circuit is disposed on the circuit board.
10. 10. The antenna assembly of claim 9, further comprising a conductive member connecting the parasitic radiator and the switching circuit.
11. 11. The antenna assembly of claim 10, wherein the conductive member comprises a conductive foam and an electrical connection, a first end of the conductive foam being connected to the parasitic radiator, a second end of the conductive foam being connected to the first end of the electrical connection, and a second end of the electrical connection being connected to the switching circuit.
12. 12. The antenna assembly of claim 11, wherein a first surface of the circuit board facing the parasitic radiator is provided with a chip, the electrical connection includes a first section extending in a first direction parallel to the first surface and a second section extending in a second direction non-parallel to the first surface, the first section is insulated from the chip, the conductive foam is connected between the first section and the parasitic radiator, and the second section connects the first section and the switching circuit.
13. 13. An electronic device body comprising the antenna assembly of any one of claims 1-11.
14. 14. The electronic device main body according to claim 13, further comprising a center frame surrounding the center frame in a circle, the main radiator being formed on the center frame.
15. 15. The electronic device main body according to claim 14, further comprising a screen and a rear cover connected to the center frame, the screen, the rear cover, and the center frame forming an accommodation space, the circuit board being disposed in the accommodation space, the parasitic radiator being disposed on a surface of the screen facing the accommodation space.
16. 16. The electronic device main body according to claim 14, further comprising a screen and a rear cover connected to the center frame, the screen, the rear cover, and the center frame forming an accommodation space, the circuit board being disposed in the accommodation space, the parasitic radiator being disposed on a surface of the rear cover facing the accommodation space.
17. 17. The electronic device body of claim 13, further comprising a battery disposed between the circuit board and the parasitic radiator, the parasitic radiator being connected to a ground point of the battery through a switching circuit.
18. 18. An electronic device comprising an electronic device body as claimed in any one of claims 12-17.
19. 19. The electronic device of claim 18, wherein the electronic device is a wearable device.
20. 20. The control method of the electronic equipment is characterized by comprising an antenna assembly, wherein the antenna assembly comprises a circuit board, a main radiator, a parasitic radiator and a switch circuit, the main radiator is connected with a feed circuit of the circuit board, the parasitic radiator is connected with the switch circuit, the switch circuit is used for feeding the main radiator with the parasitic radiator under a conduction condition, and the switch circuit is used for not feeding the parasitic radiator with the main radiator under a turn-off condition; The control method comprises the following steps: When a preset condition is met, the main radiator is controlled to feed the parasitic radiator through the switch circuit; And when the preset condition is not met, the main radiator is controlled by the switch circuit to not feed the parasitic radiator.

Description

Antenna assembly, electronic device main body, electronic device, storage medium, and control method for electronic device Technical Field The present application relates to the field of communications technologies, and in particular, to an antenna assembly, an electronic device main body, an electronic device, a storage medium, and a control method of the electronic device. Background In electronic devices, antennas can use metal middle frames as radiators, and the electronic devices are required to be light, thin and miniaturized, and the sizes of the middle frames of the electronic devices are also becoming smaller. However, for antenna performance, the larger the radiator size, the higher the antenna efficiency can generally be achieved, whereas the smaller the radiator size, the lower the antenna efficiency. At present, in order to solve the problem that the efficiency of an antenna is low due to the small size of a middle frame of an electronic device, the electronic device is additionally provided with a radiator besides a metal middle frame, and how to additionally provide the radiator to improve the antenna efficiency is a problem to be solved. Disclosure of Invention The embodiment of the application provides an antenna assembly for improving antenna efficiency, an electronic equipment main body, electronic equipment, a storage medium and a control method of the electronic equipment. In a first aspect, the application provides an antenna assembly, which comprises a circuit board, a main radiator, a parasitic radiator and a switch circuit, wherein the main radiator is connected with a feed circuit of the circuit board, the parasitic radiator is connected with the switch circuit, the switch circuit is used for feeding the parasitic radiator under a conduction condition, and the switch circuit is used for not feeding the parasitic radiator under a turn-off condition. In this scheme, through addding parasitic radiator, parasitic radiator receives switch circuit control, and switch circuit can make main radiator feed for parasitic radiator, at this moment, can promote antenna assembly's electric length, improves antenna assembly's antenna efficiency. In some application scenarios, if the parasitic radiator participates in radiation, the antenna performance may be deteriorated, and the parasitic radiator may not participate in radiation of wireless signals through the switch circuit, so that the antenna assembly may maintain better antenna performance in various application scenarios. With reference to the first aspect, in a possible implementation manner, the parasitic radiator is spaced from the main radiator, the main radiator is used for feeding the parasitic radiator in a coupling manner, the switch circuit is connected between the ground and the parasitic radiator, and the main radiator is grounded. The parasitic radiator is connected in parallel with the main radiator, and the coupling feed is realized between the main radiator and the parasitic radiator. With reference to the first aspect, in a possible implementation manner, the switch circuit is connected between a ground point of the circuit board and the parasitic radiator. The switch circuit is connected with the grounding point of the circuit board, and the switch circuit can enable the parasitic radiator to be grounded. With reference to the first aspect, in a possible implementation manner, the switching circuit is electrically connected between the parasitic radiator and the main radiator. When the switching circuit is in a conductive state, the main radiator, the switching circuit and the parasitic radiator are connected in series, and the main radiator can feed the parasitic radiator. With reference to the first aspect, in a possible implementation manner, the parasitic radiator is not grounded. The main radiator is connected in series with the parasitic radiator through the switch circuit, the parasitic radiator is not grounded, and the parasitic radiator and the main radiator are prevented from being coupled and fed under the turn-off condition of the switch circuit. With reference to the first aspect, in a possible implementation manner, the parasitic radiator has a semi-closed slot, and the semi-closed slot can reduce interference of the parasitic radiator on other antennas disposed in the middle frame. With reference to the first aspect, in a possible implementation manner, the parasitic radiator includes a first portion and a second portion, where the first portion is spaced from the second portion, and the first portion and the second portion are both connected to the switching circuit. The first and second portions can be spaced apart to form a gap that also reduces interference of parasitic radiators with other antennas disposed within the center frame. With reference to the first aspect, in a possible implementation manner, the main radiator surrounds a circle, and the circuit board and the parasitic radiator are located in