CN112582795B

CN112582795B - Antenna structure and electronic equipment

Info

Publication number: CN112582795B
Application number: CN201910939884.XA
Authority: CN
Inventors: 李界人; 王静松
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2023-05-09
Anticipated expiration: 2039-09-30
Also published as: CN112582795A

Abstract

The disclosure relates to an antenna structure and an electronic device. The antenna structure is applied to electronic equipment with a metal shell, a break seam for the antenna structure to radiate signals is formed in the edge of the metal shell, the antenna structure comprises a first feed point and a second feed point, and the first feed point and the second feed point are respectively located on two sides of the break seam. The first matching circuit used for being connected with the radio frequency end is arranged on the passage of the first feed point, the second matching circuit used for being connected with the radio frequency end is arranged on the passage of the second feed point, and the antenna structure covers at least one first working frequency band, at least one second working frequency band and at least one third working frequency band. The double-fed antenna structure adopts the structural form of the double-fed point, and different matching circuits are arranged at the double-fed point, so that the antenna structure can simultaneously realize the functions of the antenna of the first working frequency band, the antenna of the second working frequency band and the antenna of the third working frequency band, and further the antenna integration of the three working frequency bands is realized, and the occupied space of the antenna structure can be reduced.

Description

Antenna structure and electronic equipment

Technical Field

The disclosure relates to the field of antenna technology, and in particular, to an antenna structure and an electronic device.

Background

With the progress of technology and the development of the electronic and communication fields, mobile terminals such as mobile phones and tablet computers are increasingly popular, and more terminals adopt all-metal shells or metal frames to improve the appearance and texture of products. However, the appearance or texture of the product and the antenna performance of the terminal are often mutually restricted, and the development trend of lightening and thinning of the terminal is added, so that the design space of the antenna is smaller and smaller. In order to enable the radio frequency signals generated by the antenna to penetrate the metal, special designs are required in most cases. The common design is to provide a break on the metal casing or metal frame, so that the divided part of the metal area is used as a part of the antenna, and the transmission performance of the antenna is ensured in this way.

With the development of communication technology, the frequency band used by the communication electronic equipment is expanded. In the 5G communication technology, multiple antennas are required to work, and a large space of the device is inevitably occupied. Therefore, how to reduce the space occupied by the antenna is a problem to be solved in the art.

Disclosure of Invention

The present disclosure provides an antenna structure and an electronic device to solve the deficiencies in the related art.

According to a first aspect of embodiments of the present disclosure, an antenna structure is provided, which is applied to an electronic device having a metal casing, wherein a break for the antenna structure to radiate signals is provided at an edge of the metal casing, and the antenna structure includes a first feed point and a second feed point, where the first feed point and the second feed point are located at two sides of the break respectively;

the antenna structure comprises a first feed point, a second feed point, an antenna structure, a first matching circuit, a second matching circuit, a third matching circuit and a third matching circuit, wherein the first matching circuit is connected with a radio frequency end, the second matching circuit is connected with the radio frequency end, the antenna structure covers at least one first working frequency band, at least one second working frequency band and at least one third working frequency band.

Optionally, the fracture is located at the top of the metal shell, the first feed point is located at a side of the fracture close to the side edge of the metal shell, and the second feed point is located at a side of the fracture away from the side edge of the metal shell;

the metal shell is provided with a clearance area communicated with the fracture, the clearance area comprises a first area communicated with the fracture and a second area communicated with the first area, the first area is arranged in parallel with the top of the metal shell, and the second area is arranged in parallel with the side edge of the metal shell;

The resonant path of the first feed point is arranged along the second area, the resonant path of the second feed point is arranged along the first area, the first antenna radiator formed by the first feed point covers at least one first working frequency band and at least one third working frequency band, and the second antenna radiator formed by the second feed point covers at least one first working frequency band, at least one second working frequency band and at least one third working frequency band.

Optionally, the first working frequency band is a GPS working frequency band, the second working frequency band is a WiFi working frequency band, and the third working frequency band is a 5G communication working frequency band.

Optionally, the frequency of the GPS working frequency band covered by the first antenna radiator is 1176MHz, and the frequency range of the 5G communication working frequency band covered by the first antenna radiator is 3300 MHz-3800 MHz and 4400 MHz-5000 MHz;

the first matching circuit includes:

the first end of the first inductor is connected with the first feed point, the second end of the first inductor is connected with the first end of the first capacitor, the second end of the first capacitor is connected with the first end of the second inductor, and the second end of the second inductor is connected with the radio frequency end;

The first end of the second capacitor is connected with the first feed point, and the second end of the second capacitor is grounded;

a first end of the third inductor is connected with a second end of the first inductor, and a second end of the third inductor is grounded;

and the first end of the third capacitor is connected with the second end of the first capacitor, and the second end of the third capacitor is grounded.

Optionally, the frequency of the GPS working frequency band covered by the second antenna radiator is 1575MHz, the frequency range of the WiFi working frequency band covered by the second antenna radiator is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, and the frequency range of the 5G communication working frequency band covered by the second antenna radiator is 2500 MHz-2700 MHz;

the second matching circuit includes:

the first end of the fourth capacitor is connected with the second feed point, the second end of the fourth capacitor is connected with the first end of the fifth capacitor, the second end of the fifth capacitor is connected with the first end of the fourth inductor, and the second end of the fourth inductor is connected with the radio frequency end;

a fifth inductor, wherein a first end of the fifth inductor is connected with a second end of the fourth capacitor, and a second end of the fifth inductor is grounded;

A sixth inductor, wherein a first end of the sixth inductor is connected with a second end of the fifth capacitor, and a second end of the sixth inductor is grounded;

and the first end of the sixth capacitor is connected with the radio frequency end, and the second end of the sixth capacitor is grounded.

the first matching circuit includes:

a seventh inductor, an eighth inductor and a seventh capacitor, wherein a first end of the seventh inductor is connected with the first feed point, a second end of the seventh inductor is connected with the first end of the eighth inductor, a second end of the eighth inductor is connected with the first end of the seventh capacitor, and a second end of the seventh capacitor is connected with a radio frequency end;

an eighth capacitor, wherein a first end of the eighth capacitor is connected with the first feed point, and a second end of the eighth capacitor is grounded;

a ninth capacitor, wherein a first end of the ninth capacitor is connected with a second end of the seventh inductor, and a second end of the ninth capacitor is grounded;

and the first end of the ninth inductor is connected with the second end of the eighth inductor, and the second end of the ninth inductor is grounded.

the second matching circuit includes:

a tenth capacitor, an eleventh capacitor and a tenth inductor, wherein a first end of the tenth capacitor is connected with the second feed point, a second end of the tenth capacitor is connected with the first end of the eleventh capacitor, a second end of the eleventh capacitor is connected with the first end of the tenth inductor, and a second end of the tenth inductor is connected with the radio frequency end;

an eleventh inductor, a first end of the eleventh inductor is connected with a second end of the tenth capacitor, and a second end of the eleventh inductor is grounded;

a twelfth inductor, a first end of which is connected with a second end of the eleventh capacitor, and a second end of which is grounded;

and the first end of the twelfth capacitor is connected with the radio frequency end, and the second end of the twelfth capacitor is grounded.

Optionally, the first feed point is connected with the second feed point through a feed line, and a neutralization inductor is arranged on the feed line.

Optionally, the value range of the neutralization inductance is 20 nH-40 nH.

Optionally, the first matching circuit adopts a pi-type filter network matching structure.

According to a second aspect of embodiments of the present disclosure, there is provided an electronic device including a metal housing, a circuit board, and an antenna structure as described in any of the above embodiments, the circuit board including a radio frequency module for mating with the antenna structure, the circuit board being disposed within the metal housing.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

according to the antenna structure disclosed by the embodiment of the invention, the structure form of the double-feed point is adopted, and different matching circuits are arranged at the double-feed point, so that the antenna structure can simultaneously realize the functions of the antenna of the first working frequency band, the antenna of the second working frequency band and the antenna of the third working frequency band, and further the antenna of the first working frequency band, the antenna of the second working frequency band and the antenna of the third working frequency band are integrated into a whole, the space occupied by the antenna structure can be reduced, the antenna design is more compact, and the space is saved for other devices.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of an electronic device according to an exemplary embodiment.

Fig. 2 is an enlarged partial schematic view of an electronic device, according to an example embodiment.

Fig. 3 is a circuit configuration diagram of a matching circuit of an antenna configuration according to an exemplary embodiment.

Fig. 4 is a schematic diagram showing a return loss of an antenna structure employing the matching circuit shown in fig. 3, according to an exemplary embodiment.

Fig. 5 is another circuit configuration diagram of a matching circuit of an antenna configuration according to an exemplary embodiment.

Fig. 6 is a schematic diagram showing a return loss of an antenna structure employing the matching circuit shown in fig. 5, according to an exemplary embodiment.

Fig. 7 is a schematic diagram of an electronic device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The specification and size of the electronic device are limited for users' demands such as portability. However, the application functions of the electronic devices are becoming more and more abundant, and with the development of the communication technology, the frequency band used by the communication electronic devices is also being expanded. In the 5G communication technology, multiple antennas are required to work, which inevitably occupies a larger space of the device, resulting in smaller and smaller internal space of the electronic device.

The disclosure provides an antenna structure and electronic equipment, under the prerequisite of guaranteeing corresponding function of 5G communication, can reduce the space that antenna structure occupy. The antenna structure provided by the embodiment of the disclosure is applied to electronic equipment with a metal shell, a break seam for the antenna structure to realize signal radiation is formed in the edge of the metal shell, the antenna structure comprises a first feed point and a second feed point, and the first feed point and the second feed point are respectively located at two sides of the break seam. The antenna structure comprises a first feed point, a second feed point, an antenna structure, a first matching circuit, a second matching circuit, a third matching circuit and a third matching circuit, wherein the first matching circuit is connected with a radio frequency end, the second matching circuit is connected with the radio frequency end, the antenna structure covers at least one first working frequency band, at least one second working frequency band and at least one third working frequency band.

According to the antenna structure disclosed by the embodiment of the invention, the structure form of the double-feed point is adopted, and different matching circuits are arranged at the double-feed point, so that the antenna structure can simultaneously realize the functions of the antenna of the first working frequency band, the antenna of the second working frequency band and the antenna of the third working frequency band, and further the antenna of the first working frequency band, the antenna of the second working frequency band and the antenna of the third working frequency band are integrated into a whole, the space occupied by the antenna structure can be reduced, the antenna design is more compact, the antenna miniaturization is realized, and the space is saved for other devices.

The antenna structure and the electronic device of the present disclosure are described in detail below with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.

Referring to fig. 1 and 2, the embodiment of the present disclosure provides an antenna structure, which is applied to an electronic device having a metal housing 10, in which devices such as a camera 90 are required, so that the available space for the antenna structure is very limited. The metal case 10 may be a middle frame case of an electronic device, and may be made of a metal material such as magnesium alloy, stainless steel, or the like. The edge of the metal casing 10 is provided with a break seam 11 for the antenna structure to radiate signals, the metal casing 10 is provided with a clearance area 12 communicated with the break seam 11, and the metal casing 10 can be used as a part of the antenna structure to form an antenna area required by the normal operation of the antenna structure together with the break seam 11 and the clearance area 12. Alternatively, the metal shell 10 may be slotted to form the clearance area 12.

A circuit board may be further disposed in the metal casing 10 of the electronic device, and the circuit board may be provided with a radio frequency module for matching with the antenna structure, which may be understood as a radio frequency terminal connected to the first matching circuit and the second matching circuit. The circuit board may be a motherboard of an electronic device, and may have one, two, or more of a motor, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, and a processor integrated thereon.

The antenna structure is used for receiving and transmitting signals, and the antenna structure may include a first feed point 21 and a second feed point 22, where the first feed point 21 and the second feed point 22 are located at two sides of the fracture 11. The first feed point 21 is provided with a first matching circuit 31 for connecting with a radio frequency terminal (which can be understood as a radio frequency module of a circuit board), and the second feed point 22 is provided with a second matching circuit 32 for connecting with the radio frequency terminal, so that the antenna structure covers at least one first operating frequency band, at least one second operating frequency band and at least one third operating frequency band. The first matching circuit 31 and the second matching circuit 32 are respectively provided with a receiving end, and the first feeding point 21 and the second feeding point 22 can be connected with a circuit board with a radio frequency module through the receiving ends 16 of the corresponding matching circuits so as to realize energy transmission between the two matching circuits, so that signal receiving and transmitting can be realized. Optionally, the first operating frequency band may be a GPS operating frequency band, the second operating frequency band may be a WiFi operating frequency band, and the third operating frequency band may be a 5G communication operating frequency band.

In some embodiments, the frequency range of the GPS operating band may include 1176MHz and 1575MHz. The frequency range of the WiFi operating band may include 2400MHz to 2500MHz and 5200MHz to 5800MHz. The frequency range of the 5G communication operating band may include 2500MHz to 2700MHz (i.e., N41 band), 3300MHz to 3800MHz (i.e., N78 band), and 4400MHz to 5000MHz (i.e., N79 band). Of course, in other examples, the frequency ranges of the GPS operating band, the WiFi operating band, and the 5G communication operating band may be adjusted according to actual needs, which is not limited by the present disclosure.

In the example shown in the figures, a break 11 is provided at the top of the metal shell 10. Of course, in other examples, the break 11 may be provided at other positions of the metal case 10, which is not limited by the present disclosure. The first feed point 21 is located at a side of the break 11 near the side edge of the metal shell 10, and the second feed point 22 is located at a side of the break 11 away from the side edge of the metal shell 10. The clearance area 12 includes a first area 13 communicating with the break 11 and a second area 14 communicating with the first area 13, the first area 13 is parallel to the top of the metal shell 10, and the second area 14 is parallel to the side edge of the metal shell 10, i.e. the clearance area 12 has an L-shaped structure. Alternatively, the distance between the first feed point 21 and the second feed point 22 may be set to 5mm to 10mm. The width of the break 11 may be set to 1mm to 2mm.

The resonant path of the first feed point 21 is disposed along the second area 14, the resonant path of the second feed point 22 is disposed along the first area 13, and the first antenna radiator formed by the first feed point 21 covers at least one GPS operating frequency band and at least one 5G communication operating frequency band. The second antenna radiator formed by the second feed point 22 covers at least one GPS operating band, at least one WiFi operating band, and at least one 5G communication operating band.

Referring to fig. 3, in an alternative embodiment, the first matching circuit 31 may include a first inductor L1, a second inductor L2, a third inductor L3, a first capacitor C1, a second capacitor C2, and a third capacitor C3. By reasonably configuring parameters of the first inductor L1, the second inductor L2, the third inductor L3, the first capacitor C1, the second capacitor C2 and the third capacitor C3, the frequency of the GPS operating frequency band covered by the first antenna radiator formed by the first feed point 21 can be 1176MHz, and the frequency range of the 5G communication operating frequency band covered by the first antenna radiator can be 3300 MHz-3800 MHz and 4400 MHz-5000 MHz.

The first end of the first inductor L1 is connected to the first feed point 21, the second end of the first inductor L1 is connected to the first end of the first capacitor C1, the second end of the first capacitor C1 is connected to the first end of the second inductor L2, and the second end of the second inductor L2 is connected to the radio frequency end. The first end of the second capacitor C2 is connected to the first feed point 21, and the second end of the second capacitor C2 is grounded. The first end of the third inductor L3 is connected to the second end of the first inductor L1, and the second end of the third inductor L3 is grounded. The first end of the third capacitor C3 is connected with the second end of the first capacitor C1, and the second end of the third capacitor C3 is grounded.

The second matching circuit 32 may include a fourth inductor L4, a fifth inductor L5, a sixth inductor L6, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor. By reasonably configuring parameters of the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor, the fourth inductor L4, the fifth inductor L5 and the sixth inductor L6, the frequency of the GPS operating frequency band covered by the second antenna radiator formed by the second feed point 22 is 1575MHz, the frequency range of the covered WiFi operating frequency band is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, the frequency range of the covered 5G communication operating frequency band is 2500 MHz-2700 MHz, and further a 7-in-1 frequency band combination is formed.

The first end of the fourth capacitor C4 is connected to the second feed point 22, the second end of the fourth capacitor C4 is connected to the first end of the fifth capacitor C5, the second end of the fifth capacitor C5 is connected to the first end of the fourth inductor L4, and the second end of the fourth inductor L4 is connected to the radio frequency end. The first end of the fifth inductor L5 is connected to the second end of the fourth capacitor C4, and the second end of the fifth inductor L5 is grounded. The first end of the sixth inductor L6 is connected to the second end of the fifth capacitor C5, and the second end of the sixth inductor L6 is grounded. The first end of the sixth capacitor is connected with the radio frequency end, and the second end of the sixth capacitor is grounded.

It should be noted that, the first matching circuit 31 and the second matching circuit 32 may also perform corresponding parameter configuration according to actual needs, so that the working frequency bands that the antenna radiator formed by the first feed point 21 and the second feed point 22 may cover may be selectively combined to form an antenna structure with more combination modes. For example, the frequency range 3300 MHz-3800 MHz of the 5G communication operating band covered by the first antenna radiator formed by the first feed point 21 is matched to the frequency range covered by the second antenna radiator formed by the second feed point 22. The frequency range 2500 MHz-2700 MHz of the 5G communication operating band covered by the second antenna radiator formed by the second feed point 22 is matched to the frequency range covered by the first antenna radiator formed by the first feed point 21.

The first feed point 21 and the second feed point 22 may be connected by a feed line, and a neutralization inductance L0 is disposed on the feed line. Alternatively, the neutralization inductance L0 may have a value ranging from 20nH to 40nH. By providing the neutralization inductance L0 between the first feed point 21 and the second feed point 22, the isolation characteristic between the first feed point 21 and the second feed point 22 can be optimized. Further, the first matching circuit 31 may adopt a pi-type filter matching structure, so as to further improve the isolation characteristic between the first feed point 21 and the second feed point 22.

Referring to fig. 4, a schematic diagram of return loss of the matching circuit of the present embodiment used in the antenna structure of the present disclosure is shown. The working frequency band which can be covered by the antenna structure of the present disclosure, namely, the antenna bandwidth can be seen through the echo loss of fig. 4, so that the antenna structure can work in a plurality of different frequency bands, and the design requirements of the GPS function, the WiFi function and the 5G communication function are realized. Meanwhile, the isolation degree between the first feed point 21 and the second feed point 22 of the antenna structure is shallow, and the antenna structure can be guaranteed to have good working performance.

Referring to fig. 5, in an alternative embodiment, the first matching circuit 31 may include a seventh inductor L7, an eighth inductor L8, a ninth inductor L9, a seventh capacitor C7, an eighth capacitor C8, and a ninth capacitor C9. By reasonably configuring parameters of the seventh inductor L7, the eighth inductor L8, the ninth inductor L9, the seventh capacitor C7, the eighth capacitor C8 and the ninth capacitor C9, the frequency of the GPS operating frequency band covered by the first antenna radiator formed by the first feed point 21 can be 1176MHz, and the frequency range of the 5G communication operating frequency band covered by the first antenna radiator is 3300 MHz-3800 MHz and 4400 MHz-5000 MHz.

The first end of the seventh inductor L7 is connected to the first feed point 21, the second end of the seventh inductor L7 is connected to the first end of the eighth inductor L8, the second end of the eighth inductor L8 is connected to the first end of the seventh capacitor C7, and the second end of the seventh capacitor C7 is connected to the radio frequency end. A first end of the eighth capacitor C8 is connected to the first feed point 21, and a second end of the eighth capacitor C8 is grounded. A first end of the ninth capacitor C9 is connected to the second end of the seventh inductor L7, and a second end of the ninth capacitor C9 is grounded. A first end of the ninth inductor L9 is connected to a second end of the eighth inductor L8, and a second end of the ninth inductor L9 is grounded.

The second matching circuit 32 may include a tenth inductance L10, an eleventh inductance L11, a twelfth inductance L12, a tenth capacitance C10, an eleventh capacitance C11, and a twelfth capacitance C12. By reasonably configuring parameters of the tenth inductor L10, the eleventh inductor L11, the twelfth inductor L12, the tenth capacitor C10, the eleventh capacitor C11 and the twelfth capacitor C12, the frequency of the GPS operating frequency band covered by the second antenna radiator formed by the second feed point 22 can be 1575MHz, the frequency range of the WiFi operating frequency band covered by the first antenna radiator is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, and the frequency range of the 5G communication operating frequency band covered by the second antenna radiator is 2500 MHz-2700 MHz.

The first end of the tenth capacitor C10 is connected to the second feed point 22, the second end of the tenth capacitor C10 is connected to the first end of the eleventh capacitor C11, the second end of the eleventh capacitor C11 is connected to the first end of the tenth inductor L10, and the second end of the tenth inductor L10 is connected to the radio frequency end. A first end of the eleventh inductor L11 is connected to a second end of the tenth capacitor C10, and a second end of the eleventh inductor L11 is grounded. A first end of the twelfth inductor L12 is connected to the second end of the eleventh capacitor C11, and a second end of the twelfth inductor L12 is grounded. The first end of the twelfth capacitor C12 is connected to the radio frequency end, and the second end of the twelfth capacitor C12 is grounded.

Referring to fig. 6, a schematic diagram of return loss of the matching circuit of the present embodiment used in the antenna structure of the present disclosure is shown. The working frequency band which can be covered by the antenna structure of the present disclosure, namely, the antenna bandwidth can be seen through the echo loss of fig. 6, so that the antenna structure can work in a plurality of different frequency bands, and the design requirements of the GPS function, the WiFi function and the 5G communication function are realized. Meanwhile, the isolation degree between the first feed point 21 and the second feed point 22 of the antenna structure is shallower, and the antenna structure can be ensured to have better working performance.

The embodiment of the disclosure also provides an electronic device, which can comprise a metal shell, a circuit board and an antenna structure. It should be noted that the description of the antenna structure in the foregoing embodiments and implementations is equally applicable to the electronic device of the present disclosure.

Referring to fig. 7, the electronic device of the present disclosure may further include a memory 102, a memory controller 104, one or more (only one is shown in the figure) processors 106, a peripheral interface 108, a radio frequency module 110, a positioning module 112, a camera module 114, an audio module 116, a screen 118, and a key module 120. These components communicate with each other via one or more communication buses/signal lines 122.

It will be appreciated that the configuration shown in fig. 7 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 7, or have a different configuration than shown in fig. 7. The components shown in fig. 7 may be implemented in hardware, software, or a combination thereof.

The memory 102 may be used to store software programs and modules, such as corresponding program instructions/modules in the capacitive screen in the embodiments of the present disclosure, and the processor 106 performs various functional applications and data processing by running the software programs and modules stored in the memory controller 104, i.e., to implement the above-described calculation of the touch position of the capacitive screen by the user.

Memory 102 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 102 may further include memory remotely located relative to the processor 106, which may be connected to the terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. Access to the memory 102 by the processor 106 and possibly other components may be under the control of the memory controller 104.

The peripheral interface 108 couples various input/output devices to the CPU and memory 102. The processor 106 runs various software, instructions within the memory 102 to perform various functions of the terminal and to perform data processing.

In some embodiments, the peripheral interface 108, the processor 106, and the memory controller 104 may be implemented in a single chip. In other examples, they may be implemented by separate chips.

The rf module 110 is configured to receive and transmit electromagnetic waves, and to implement mutual conversion between the electromagnetic waves and the electrical signals, so as to communicate with a communication network or other devices. The radio frequency module 110 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and the like. The rf module 110 may communicate with various networks such as the internet, intranets, wireless networks, or other devices via wireless networks. The wireless network may include a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network may use various communication standards, protocols, and technologies including, but not limited to, global system for mobile communications (Global System for Mobile Communication, GSM), enhanced mobile communications technology (Enhanced Data GSM Environment, EDGE), wideband code division multiple access technology (wideband code division multiple access, W-CDMA), code division multiple access technology (Code division access, CDMA), time division multiple access technology (time division multiple access, TDMA), bluetooth, wireless Fidelity (WiFi), internet telephony (Voice over internet protocal, voIP), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wi-Max), other protocols for mail, instant messaging, and short messaging, and any other suitable communication protocol, even those not currently developed.

The positioning module 112 is configured to obtain a current location of the terminal. Examples of the positioning module 112 include, but are not limited to, global satellite positioning system (GPS), wireless local area network or mobile communication network based positioning technology.

The camera module 114 is used to take pictures or videos. The photographed photo or video may be stored into the memory 102 and may be transmitted through the radio frequency module 110.

The audio module 116 provides an audio interface to the user, which may include one or more microphones, one or more speakers, and audio circuitry. The audio circuit receives sound data from the peripheral interface 108, converts the sound data to electrical information, and transmits the electrical information to the speaker. The speaker converts electrical energy into sound waves that can be heard by the human ear. The audio circuit also receives electrical information from the microphone, converts the electrical signal into sound data, and transmits the sound data to the peripheral interface 108 for further processing. The audio data may be retrieved from the memory 102 or through the radio frequency module 110. In addition, audio data may also be stored in the memory 102 or transmitted through the radio frequency module 110. In some examples, the audio module 116 may also include a headphone jack for providing an audio interface to headphones or other devices.

Screen 118 provides an output interface between the terminal and the user. Specifically, screen 118 displays video output to the user, the content of which may include text, graphics, video, and any combination thereof. Some output results correspond to some user interface objects. It is understood that the screen 118 may also include a touch screen. The touch screen provides an output and input interface between the terminal and the user at the same time. In addition to displaying video output to users, the touch screen also receives user inputs, such as user clicks, swipes, and the like, in order for the user interface object to respond to these user inputs. The technique of detecting user input may be based on resistive, capacitive, or any other possible touch detection technique. Specific examples of touch screen display units include, but are not limited to, liquid crystal displays or light emitting polymer displays.

The key module 120 also provides an interface for a user to input to the terminal, and the user can cause the terminal to perform different functions by pressing different keys.

According to the antenna structure disclosed by the embodiment of the invention, the structure form of the double-feed point is adopted, and different matching circuits are arranged at the double-feed point, so that the antenna structure can simultaneously realize the functions of the GPS antenna, the WiFi antenna and the 5G communication antenna, and further realize the integration of the GPS antenna, the WiFi antenna and the 5G communication antenna, the space occupied by the antenna structure can be reduced, the antenna design is more compact, the antenna miniaturization is realized, and the space is saved for other devices.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna structure is applied to electronic equipment with a metal shell, and is characterized in that a break seam for the antenna structure to radiate signals is formed in the edge of the metal shell, the antenna structure comprises a first feed point and a second feed point, and the first feed point and the second feed point are respectively positioned on two sides of the break seam;

a first matching circuit used for being connected with a radio frequency end is arranged on a passage of the first feed point, a second matching circuit used for being connected with the radio frequency end is arranged on a passage of the second feed point, a first antenna radiator formed by the first feed point covers at least one first working frequency band and at least one third working frequency band, a second antenna radiator formed by the second feed point covers at least one first working frequency band, at least one second working frequency band and at least one third working frequency band, and frequency ranges of the first working frequency band, the second working frequency band and the third working frequency band are different;

The first matching circuit includes:

2. The antenna structure of claim 1, wherein the break is located at a top of the metal housing, the first feed point is located at a side of the break near a side of the metal housing, and the second feed point is located at a side of the break away from the side of the metal housing;

The resonant path of the first feed point is disposed along the second region, and the resonant path of the second feed point is disposed along the first region.

3. The antenna structure of claim 2, wherein the first operating frequency band is a GPS operating frequency band, the second operating frequency band is a WiFi operating frequency band, and the third operating frequency band is a 5G communication operating frequency band.

4. The antenna structure of claim 3, wherein the first antenna radiator covers a GPS operating band having a frequency of 1176MHz, and the first antenna radiator covers a 5G communication operating band having a frequency range of 3300MHz to 3800MHz and 4400MHz to 5000MHz.

5. The antenna structure of claim 3, wherein the frequency of the GPS operating band covered by the second antenna radiator is 1575MHz, the frequency of the WiFi operating band covered by the second antenna radiator is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, and the frequency of the 5G communication operating band covered by the second antenna radiator is 2500 MHz-2700 MHz;

the second matching circuit includes:

6. The antenna structure of claim 3, wherein the frequency of the GPS operating band covered by the second antenna radiator is 1575MHz, the frequency of the WiFi operating band covered by the second antenna radiator is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, and the frequency of the 5G communication operating band covered by the second antenna radiator is 2500 MHz-2700 MHz;

the second matching circuit includes:

7. The antenna structure according to claim 1, wherein the first feed point and the second feed point are connected by a feed line, and a neutralization inductance is disposed on the feed line.

8. The antenna structure of claim 7, wherein the neutralization inductance has a value in a range of 20nH to 40nH.

9. The antenna structure of claim 1, wherein the first matching circuit employs a pi-type filter network matching structure.

10. An antenna structure is applied to electronic equipment with a metal shell, and is characterized in that a break seam for the antenna structure to radiate signals is formed in the edge of the metal shell, the antenna structure comprises a first feed point and a second feed point, and the first feed point and the second feed point are respectively positioned on two sides of the break seam;

the first matching circuit includes:

11. The antenna structure of claim 10, wherein the break is located at a top of the metal housing, the first feed point is located at a side of the break near a side of the metal housing, and the second feed point is located at a side of the break away from the side of the metal housing;

12. The antenna structure of claim 11, wherein the first operating frequency band is a GPS operating frequency band, the second operating frequency band is a WiFi operating frequency band, and the third operating frequency band is a 5G communication operating frequency band.

13. The antenna structure of claim 12, wherein the first antenna radiator covers a GPS operating band having a frequency of 1176MHz, and the first antenna radiator covers a 5G communication operating band having a frequency range of 3300MHz to 3800MHz and 4400MHz to 5000MHz.

14. The antenna structure of claim 12, wherein the frequency of the GPS operating band covered by the second antenna radiator is 1575MHz, the frequency of the WiFi operating band covered by the second antenna radiator is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, and the frequency of the 5G communication operating band covered by the second antenna radiator is 2500 MHz-2700 MHz;

the second matching circuit includes:

15. The antenna structure of claim 12, wherein the frequency of the GPS operating band covered by the second antenna radiator is 1575MHz, the frequency of the WiFi operating band covered by the second antenna radiator is 2400 MHz-2500 MHz and 5200 MHz-5800 MHz, and the frequency of the 5G communication operating band covered by the second antenna radiator is 2500 MHz-2700 MHz;

the second matching circuit includes:

16. The antenna structure of claim 10, wherein the first feed point and the second feed point are connected by a feed line, and a neutralization inductance is disposed on the feed line.

17. The antenna structure of claim 16, wherein the neutralization inductance has a value in a range of 20nH to 40nH.

18. The antenna structure of claim 10, wherein the first matching circuit employs a pi-type filter network matching structure.

19. An electronic device comprising a metal housing, a circuit board and an antenna structure, the antenna structure being as claimed in any one of claims 1 to 9 or as claimed in any one of claims 10 to 18, the circuit board comprising a radio frequency module for cooperation with the antenna structure, the circuit board being provided within the metal housing.