CN108666741B

CN108666741B - Antenna assembly and electronic equipment

Info

Publication number: CN108666741B
Application number: CN201810458424.0A
Authority: CN
Inventors: 贾玉虎; 周林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2020-04-21
Anticipated expiration: 2038-05-14
Also published as: CN108666741A

Abstract

The embodiment of the application provides an antenna assembly and electronic equipment, wherein the antenna assembly comprises a metal substrate, and a through hole is formed in the first end part of the metal substrate adjacent to the first end part; a first antenna structure formed on a first side of the first end portion; the second antenna structure is formed in the middle of the first end part, and a first gap is formed between the second antenna structure and the first antenna structure; a third antenna structure formed on a second side of the first end portion, the third antenna structure and the second antenna structure having a second gap therebetween; and a coupling point is arranged on the second antenna structure, the coupling point is adjacent to the second gap, the coupling point is grounded through an inductor and a capacitor which are connected in series, and the third antenna structure receives antenna signals through the inductor and the capacitor which are connected in series. The antenna performance of the third antenna structure can be optimized.

Description

Antenna assembly and electronic equipment

Technical Field

The present application relates to the field of electronic devices, and in particular, to an antenna assembly and an electronic device.

Background

With the development of network technology and the improvement of the intelligent degree of electronic equipment, users can realize more and more functions such as conversation, chatting, game playing and the like through the electronic equipment. The user realizes signal transmission through the antenna of the electronic equipment in playing games and web browsing by using the electronic equipment.

However, with the increasing functions of the electronic device and the design of the narrow bezel or the full screen, especially, the occupied space of the side portion of the electronic device is increased, so that the space of the side portion of the electronic device is more and more limited, and a clearance area where the antenna is located at the side portion of the electronic device is occupied, which affects the performance of the antenna.

Disclosure of Invention

The embodiment of the application provides an antenna assembly and electronic equipment, which can improve the performance of an antenna.

An embodiment of the present application provides an antenna assembly, includes:

a metal substrate having a through-hole penetrating therethrough in a thickness direction of the metal substrate, the through-hole being adjacent to a first end portion of the metal substrate;

a first antenna structure formed on a first side of the first end portion;

a second antenna structure formed in the middle of the first end portion, wherein a first gap is formed between the second antenna structure and the first antenna structure, and the first gap extends from the first end portion to the through hole and is communicated with the through hole;

a third antenna structure formed on a second side of the first end portion, the second antenna structure being disposed between the first antenna structure and the third antenna structure, a second gap being provided between the third antenna structure and the second antenna structure, the second gap being formed to extend from the first end portion toward the through hole and communicating with the through hole;

the second antenna structure is provided with a coupling point, the coupling point is adjacent to the second gap, the coupling point is grounded through an inductor and a capacitor which are connected in series, and the third antenna structure receives antenna signals through the inductor and the capacitor which are connected in series.

The embodiment of the application also provides electronic equipment, which comprises an antenna assembly, wherein the antenna assembly is the antenna assembly.

The antenna component provided by the embodiment of the application comprises a metal substrate, a first antenna structure, a second antenna structure and a third antenna structure, wherein a first gap is arranged between the first antenna structure and the second antenna structure, a second gap is arranged between the second antenna structure and the third antenna structure, the first antenna structure, the second antenna structure, the third antenna structure, the first gap and the second gap are arranged at the same end part, even if the clearance area at the side position of the electronic equipment is occupied, the clearance area of the antenna at the end position of the electronic equipment can be increased, the radiation intensity at the end of the electronic equipment can be improved, the antenna performance of the electronic equipment can be improved, meanwhile, the third antenna structure receives antenna signals through the inductor and the capacitor which are connected in series with the second antenna structure, and the third antenna structure multiplexes a part of the structure of the second antenna structure, so that the antenna performance of the third antenna structure is optimized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a first structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a second schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 3 is a first structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 4 is a second structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 5 is a schematic diagram of a third structure of an antenna assembly provided in an embodiment of the present application.

Fig. 6 is a fourth structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 7 is a fifth structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 8 is a sixth structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 9 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 10 is a fourth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 11 is a fifth structural schematic diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In this application, an electronic device includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

The embodiment of the application provides an antenna assembly and electronic equipment. The details will be described below separately. The antenna assembly may be disposed in the electronic device.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. In this embodiment, the electronic device 100 includes a display screen 10, a middle frame 20, a circuit board 30, a battery 40, and a rear cover 50.

Wherein the display screen 10 is mounted on the rear cover 50 to form a display surface of the electronic device 100. The display screen 10 serves as a front housing of the electronic device 100, and forms an accommodating space with the rear cover 50 for accommodating other electronic components or functional modules of the electronic device 100. Meanwhile, the display screen 10 forms a display surface of the electronic apparatus 100 for displaying information such as images, texts, and the like. The Display screen 10 may be a Liquid Crystal Display (LCD) or an organic light-Emitting Diode (OLED) Display screen.

In some embodiments, a glass cover plate may be disposed over the display screen 10. Wherein, the glass cover plate can cover the display screen 10 to protect the display screen 10 and prevent the display screen 10 from being scratched or damaged by water.

In some embodiments, the display screen 10 may include a display area 11 and a non-display area 12. The display area 11 performs a display function of the display screen 10 for displaying information such as images and texts. The non-display area 12 does not display information. The non-display area 12 may be used to set functional modules such as a camera, a receiver, a proximity sensor, and the like. In some embodiments, the non-display area 12 may include at least one area located at upper and lower portions of the display area 11.

Referring to fig. 2, fig. 2 is a second structural schematic diagram of an electronic device according to an embodiment of the present disclosure. In this embodiment, the display screen 10 may be a full-face screen. At this time, the display screen 10 may display information in a full screen, so that the electronic apparatus 100 has a large screen occupation ratio. The display screen 10 comprises only the display area 11 and no non-display area. At this time, functional modules such as a camera and a proximity sensor in the electronic apparatus 100 may be hidden under the display screen 10, and the fingerprint identification module of the electronic apparatus 100 may be disposed on the back of the electronic apparatus 100.

The middle frame 20 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 20 can be accommodated in the accommodating space formed by the display screen 10 and the rear cover 50. The middle frame 20 is used for providing a supporting function for the electronic components or the functional modules in the electronic device 100, so as to mount the electronic components or the functional modules in the electronic device together. For example, functional modules such as a camera, a receiver, a circuit board, and a battery in the electronic apparatus may be mounted on the center frame 20 for fixing. In some embodiments, the material of the middle frame 20 may include metal or plastic.

The circuit board 30 is mounted inside the receiving space. For example, the circuit board 30 may be mounted on the middle frame 20 and received in the receiving space together with the middle frame 20. The circuit board 30 may be a motherboard of the electronic device 100. The circuit board 30 is provided with a grounding point to realize grounding of the circuit board 30. One or more of a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera, a proximity sensor, an ambient light sensor, a gyroscope, and a processor may be integrated on the circuit board 30. Meanwhile, the display screen 10 may be electrically connected to the circuit board 30.

In some embodiments, display control circuitry is disposed on the circuit board 30. The display control circuit outputs an electric signal to the display screen 10 to control the display screen 10 to display information.

The battery 40 is mounted inside the receiving space. For example, the battery 40 may be mounted on the middle frame 20 and be received in the receiving space together with the middle frame 20. The battery 40 may be electrically connected to the circuit board 30 to enable the battery 40 to power the electronic device 100. The circuit board 30 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic components in the electronic device 100.

The rear cover 50 is used to form an outer contour of the electronic device 100. The rear cover 50 may be integrally formed. In the forming process of the rear cover 50, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed in the rear cover 50.

In the process of continuously increasing the screen occupation ratio of the display screen of the electronic device, for example, when the screen occupation ratio is changed from the display screen shown in fig. 1 to the display screen shown in fig. 2, the distance between the screen and the middle frame is smaller, the clearance area reserved for the middle frame antenna is smaller, and the antenna performance is also affected. The antenna assembly and the electronic device of the embodiments of the present application will be described in detail below.

Referring to fig. 3 and fig. 4, fig. 3 is a first structural schematic diagram of an antenna assembly provided in an embodiment of the present application, and fig. 4 is a second structural schematic diagram of the antenna assembly provided in the embodiment of the present application. The antenna assembly 500 may be installed in an electronic device, which may refer to any of the above electronic devices, and will not be described herein again. The antenna assembly comprises a metal substrate 551, and a plurality of antenna structures are arranged on the metal substrate 551.

The metal substrate 551 has a first end 501, a first side 503, a second end 502, and a second side 504. Wherein the first end 501 is opposite to the second end 502, the length of the first end 501 and the second end 502 may be the same. Where the first side 503 and the second side 504 are opposite, the first side 503 and the second side 504 may be the same length, the first end 501 is located between the first side 503 and the second side 504, and the second end 502 is located between the first side 503 and the second side 504. In some embodiments, the length of the first side 503 may be greater than the length of the first end 501.

In some embodiments, the metal substrate 551 is provided with a through hole 560, a first gap 540 and a second gap 550 at the position of the first end 501. The through hole 560 penetrates through the metal substrate 551 in the thickness direction of the metal substrate 551, the through hole 560 may be a strip-shaped hole or an arc-shaped hole, and the through hole 560 is adjacent to the first end 501. Wherein the first gap 540 and the second gap 550 are disposed at a distance from each other, the first gap 540 and the second gap 550 are both formed extending from the first end 501 toward the through hole 560, and the first gap 540 and the second gap 550 are respectively communicated with the through hole 560. The through hole 560 is formed in three parts by the first and

second gaps

540 and 550, the second hole 562 between the first and

second gaps

540 and 550, the first hole 561 on the side of the first gap 541, and the third hole 563 on the side of the second gap 550. The first and

third holes

561 and 563 are positioned at both sides of the second hole 562, respectively.

In some embodiments, the second apertures 562 can be strip apertures. The first hole 561 may be an arc-shaped hole, and the first hole 561 is close to a connection position of the first end portion 501 and the first side portion 503, that is, the first hole 561 is located at a corner position of the metal substrate 551. The arcuate configuration of the first aperture 561 accommodates the corner configuration adjacent thereto. The third hole 563 may be an arc-shaped hole, and the third hole 563 is close to a connection position of the first end portion 501 and the second side portion 504, that is, the third hole 563 is located at another corner position of the metal substrate 551. The arcuate configuration of the third aperture 563 accommodates corner configurations adjacent thereto. The configuration of the first hole 561, the second hole 562, and the third hole 563 is not limited to this, and may have other shapes.

In some embodiments, the first and

third holes

561 and 563 may be identical in shape, the first and

third holes

561 and 563 may be identical in size, and the first and

third holes

561 and 563 may be symmetrically disposed with respect to the second hole 562.

The first gap 540 may be a rectangular hole, and the width of the first gap 540 may range from 1.5mm to 2 mm. Wherein the second gap 550 may be a rectangular hole, and the width of the second gap 55 may range from 1.5mm to 2 mm. The first and

second gaps

540 and 550 may be formed identically, and the first and

second gaps

540 and 550 may be the same size. It should be noted that the shape and size of the first gap 540 and the second gap 550 are not limited thereto.

The first gap 540, the second gap 550 and the second hole 562 form a second metal part 520, the second metal part 520 is located between the first gap 540 and the second gap 550, and the second metal part 520 is located outside the second hole 562. In some embodiments, the second metal part 520 has a strip structure. The second metal part 520 may serve as the second antenna structure 520, or the second metal part 520 may serve as the second radiator 520. The second antenna structure 520 may be coupled with a second signal source 525 and the second antenna structure 520 may be coupled with a second ground point 523 such that the second antenna structure 520 may transceive signals. The second antenna structure 520 may be coupled to a second signal source 525 via a second matching circuit 524. Upon excitation by the second signal source 525, energy may be excited on the second antenna structure 520 by the second matching circuit 524 for transceiving signals.

Wherein a coupling point 581 is provided on the second antenna structure 520, the coupling point 581 is provided adjacent to the second gap 550, the coupling point 581 is connected to ground via a series-connected inductor 582 and capacitor 583, and the third antenna structure 530 receives the antenna signal via the series-connected inductor 582 and capacitor 583.

Since the second gap 550 is disposed between the second antenna structure 520 and the third antenna structure 530, the antenna signals of the second antenna structure 520 and the third antenna structure 530 are transmitted through the second gap 550, and the side clearance is small, resulting in poor performance of the third antenna structure 530, the coupling point 581 on the second antenna structure 520 is closer to the third antenna structure 530, and the third antenna structure 530 receives the antenna signals through the series connection of the inductor 582 and the capacitor 583.

In the embodiment of the application, the first antenna structure 510, the second antenna structure 520, the third antenna structure 530, the first gap 540 and the second gap 550 are formed and arranged at the same end portion (i.e., the first end portion 501) of the metal substrate 551, even if a clearance area at a side position of the electronic device is occupied, the clearance area of the antenna at the end position of the electronic device can be increased, the radiation intensity at the end portion of the electronic device can be improved, and the antenna performance of the electronic device can be improved. Meanwhile, the third antenna structure 530 receives an antenna signal through the inductor 582 and the capacitor 583 connected in series with the second antenna structure 520, and the third antenna structure 530 multiplexes a part of the second antenna structure 520, so that the antenna performance of the third antenna structure 530 is optimized. The partial structure of the multiplexing second antenna structure 520 of the third antenna structure 530 can be understood as increasing the size of the third antenna structure, and under the design of the existing full screen or narrow frame, the clearance area is smaller and smaller, and the antenna performance of the third antenna structure 530 can be effectively improved.

It should be noted that the metal substrate 551 may be made of a metal material or an alloy material, such as an aluminum alloy, a magnesium alloy, or the like.

In the embodiment of the present invention, three antenna structures (510, 520, and 530) are provided at the first end 501 of the metal substrate 551, but three antenna structures may be provided at the second end 502 of the metal substrate 551. Of course, it is also possible to provide three antenna structures on the first side portion 503 or the second side portion 504. Note that three antenna structures may be provided in both the first end portion 501 and the second end portion 502.

In some embodiments, the series resonant circuit formed by the series inductor 582 and the capacitor 583 is a band pass filter, and the frequency of the series resonant circuit is the same as the frequency of the antenna signal received by the third antenna structure 530.

Specifically, the coupling point 581 is grounded through the inductor 582 and the capacitor 583 connected in series, although the coupling point 581 may also be grounded through the capacitor 583 and the inductor 582 connected in series, and the positions of the inductor 582 and the capacitor 583 may be changed, so long as the resonant frequency of the series resonant circuit formed by the inductor 582 and the capacitor 583 connected in series is the same as the frequency of the antenna signal received by the third antenna structure 530.

In some embodiments, the third antenna structure 530 receives the positioning system signal through the series connection of inductor 582 and capacitor 583. For example, if the third antenna structure 530 needs to receive a gps signal with a center frequency of 1575.42MHz and the resonant frequency of the series resonant circuit formed by the series inductor 582 and the capacitor 583 is also 1575.42MHz, the third signal source can excite the third antenna structure 530 through the third matching circuit, excite energy on the third antenna structure 530, pass through the spatial electromagnetic energy to the second antenna structure 520 through the second gap 550, and then resonate through the series inductor 582 and the capacitor 583 to receive an antenna signal with a specific frequency.

It should be noted that the resonant frequency of the series resonant circuit formed by the inductor 582 and the capacitor 583 connected in series only needs to be close to the frequency of the signal of the antenna to be received by the third antenna structure 530, for example, the center frequency of the gps signal is 1575.42MHz, and the resonant frequency may be 1575MHz or 1576 MHz. In addition, the positioning system signal may be a GPS signal, a beidou satellite navigation system signal, a glonass satellite navigation system signal, or a galileo satellite navigation system signal, or the like.

It should be noted that the frequency received and/or transmitted by the second antenna structure 520 is different from the resonant frequency of the series resonant circuit formed by the inductor 582 and the capacitor 583 connected in series, for example, the second antenna structure 520 is used to receive and/or transmit a low frequency antenna signal, which may have a frequency of 700M-960M, etc.

In some embodiments, the coupling point 581 of the second antenna structure 520 is located at a distance in the range of 5mm-20mm from the second gap 550.

The distance between the coupling point 581 and the second gap 550 is obtained by comprehensively calculating the length of the antenna radiator of the third antenna structure 530, the frequency of the antenna signal to be received, and the width of the second gap 550, so the distance between the coupling point 581 and the second gap 550 is in the range of 5mm-20mm, for example, 8mm, 10mm, 12mm, 15mm, and the like.

In some embodiments, the width of the second gap 550 ranges from 1.5mm to 2 mm. The width of the second gap 550 cannot be too large because the third antenna structure 530 and the series-connected inductor 582 and capacitor 583 on either side of the second gap 550 need to cooperate to receive the antenna signal. Meanwhile, the second antenna structure 520 needs to receive antenna signals of other frequencies and needs to be isolated from the third antenna structure 530 through the second gap 550, so that the influence of the third antenna structure 530 on the antenna signals is reduced, therefore, the width of the second gap 550 cannot be too small, and a range value of 1.5mm-2mm is obtained through a large number of experiments.

With continued reference to fig. 3, in some embodiments, the third antenna structure 530 includes a third free end 535 adjacent to the second gap 550 and a third connecting end 536 opposite to the third free end 535, wherein the third connecting end 536 is fixedly connected to the main body portion 552 of the metal substrate 551.

The third antenna structure 530 radiates an antenna signal through the third free end 535, and the third connection end 536 may be fixedly connected to the main body portion 552 of the metal substrate 551. The fixing connection may be formed integrally, or may be formed by fixing the third connection end 536 and the main body portion 552 by a fixing member, for example, a metal member is welded to the third connection end 536 and the main body portion 552, or plastic is disposed between the third connection end 536 and the main body portion 552 by injection molding, and the third connection end 536 and the main body portion 552 are fixedly connected by the plastic.

In some embodiments, the third connection end 536 of the third antenna structure 530 is grounded.

The third connection 536 may also be connected to ground by a wire. If the body portion 552 of the metal substrate 551 is integrally grounded, the third connection terminal 536 is integrally formed with the body portion 552, and both are made of metal, the third connection terminal 536 is grounded. The third connecting end 536 may also be fixedly connected to the main body portion 552 via a metal member, and grounded via the metal member.

Referring to fig. 5, fig. 5 is a schematic view illustrating a third structure of an antenna element according to an embodiment of the present application. The second antenna structure 520 may include a frequency switching point 521, a second feeding end 522 and a second grounding point 523, the second antenna structure 520 is coupled to the second signal source 525 through the second feeding end 522, the second antenna structure 520 is grounded through the second grounding point 523, the second antenna structure 520 is connected to one end of the adjustable energy storage element 526 through the frequency switching point 521, the other end of the adjustable energy storage element 526 is grounded, and the adjustable energy storage element 526 is used to adjust a frequency band of an antenna signal transmitted by the second antenna structure 520.

The adjustable energy storage element 526 includes a switch 5261 and a plurality of inductors 5262, the inductances of the plurality of inductors 5262 being different from each other, the switch 5261 being configured to determine from the plurality of inductors 5262 that one inductor 5262 is connected between the frequency switching point 521 and ground. The figure shows only a two-inductor solution, but three, four or even more inductors in parallel may be provided.

A common terminal of the switch 5261 is connected to the frequency switching point 521, a plurality of branch terminals of the switch 5261 are grounded through one of the plurality of inductors 5262, respectively, and the switch 5261 is configured to communicate the common terminal with one of the plurality of branch terminals. The common terminal of the switch 5261 may be grounded, the branch terminals of the switch 5261 may be connected to the frequency switching point 521 through one of the inductors 5262, and the switch 5261 may be configured to connect the common terminal to one of the branch terminals. The plurality of inductors 5262 is at least two, and one of the plurality of inductors 5262 is selected based on the frequency of the antenna signal that the second antenna structure 520 is required to transmit or receive. By switching the frequency through the inductor 5262, better performance can be achieved across the frequency band of the antenna signal transmitted by the second antenna structure 520. For example, the frequency band of the antenna signal transmitted by the second antenna structure 520 is 700M-960M, and good antenna performance can be obtained in this frequency band range.

In some embodiments, the adjustable energy storage element may be an adjustable inductor. The frequency switching is realized by adjusting the inductance of the adjustable inductor.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a fourth structure of an antenna element according to an embodiment of the present application. In some embodiments, the adjustable energy storage element 526 may be an adjustable capacitor 5263. That is, the frequency switching point 521 is grounded through a tunable capacitor 5263, and has no other element or switch. Of course, the capacitance values of the plurality of capacitors may be different from each other by switching a switch for determining that one capacitor is connected between the frequency switching point 521 and the ground from among the plurality of capacitors. The switch has a large loss, so the tunable capacitor 5263 is more effective. The adjustable capacitor is generally used to adjust the frequency range of the antenna signal transmitted by the second antenna structure 520 from the highest value, for example, the frequency band of the antenna signal to be transmitted by the second antenna structure 520 is 700M to 960M, and the adjustable capacitor can obtain better antenna performance in the frequency band range of 824M to 960M, and the antenna performance is better than that of the scheme using the inductor adjustment, but the antenna performance is more degraded in the range of 700M to 824M. Therefore, if the frequency band range to be adjusted is small, the adjustable capacitor is preferentially selected for adjustment, and if the frequency band range to be adjusted is wide, the inductor is preferentially selected for adjustment. It should be noted that the ranges in the present embodiment are merely examples, and the ranges in the present embodiment may have other range values.

In some embodiments, the antenna signal transmitted by the second antenna structure 520 is a low frequency antenna signal. That is, the antenna signal transmitted and/or received by the second antenna structure 520 is a low frequency antenna signal. The lower the frequency of the antenna signal, the longer the length of the corresponding antenna structure, the middle of the first end portion 501 where the second antenna structure 520 is disposed, the limited length of the second antenna structure 520 between the first gap 540 and the second gap 550, the second antenna structure 520 may include a second antenna radiator, and the length of the second antenna radiator may be 35mm-40 mm. The length of the second antenna radiator may also be 30 mm. The frequency band needs to be adjusted by the adjustable energy storage element 526 to transmit the antenna signal with wider frequency band.

The first antenna structure 510 is coupled to a first signal source via a first matching circuit 512.

Specifically, please refer to fig. 7, fig. 7 is a schematic diagram illustrating a fifth structure of an antenna assembly according to an embodiment of the present application. The first antenna structure 510 comprises a first feeding terminal 511 and a first grounding point 514, the antenna assembly further comprises a second switch 515, the second switch 515 comprising an output terminal, a first input terminal and a second input terminal; the second feeding terminal 522 is connected to an output terminal of the second switch 515, a first input terminal of the second switch 515 is connected to the first signal source 513 through the first capacitor 516, and a second input terminal of the second switch 515 is connected to the first signal source 513 through the first resistor 517. A first ground point 514 is disposed adjacent the first connection end.

The first antenna structure 510 is used for transmitting the middle-high frequency antenna signal, and the first antenna structure 510 switches the middle-frequency antenna signal and the high-frequency antenna signal through the second switch 515, the first capacitor 516 and the first resistor 517. The first antenna structure 510 transmits an intermediate frequency antenna signal when the second changeover switch 515 selects the first capacitor 516 to be connected between the first feeding terminal 511 and the first signal source 513, and the first antenna structure 510 transmits a high frequency antenna signal when the second changeover switch 515 selects the first resistor 517 to be connected between the first feeding terminal 511 and the first signal source 513. The capacitance of the first capacitor 516 may be between 0.5pf and 1pf, and the first resistor 517 may be a 0 ohm resistor.

Referring to fig. 8, fig. 8 is a schematic view illustrating a sixth structure of an antenna element according to an embodiment of the present application. The first antenna structure 510 comprises a first feeding end 511 and a first grounding point 514, the first feeding end 511 being connected to a first signal source 513 via a second tunable capacitor 519.

The first antenna structure 510 is used for transmitting medium and high frequency antenna signals, wherein the first feeding terminal 511 is connected to the first signal source 513 via the second tunable capacitor 519. By adjusting the capacitance value of the second adjustable capacitor 519, the first antenna structure 510 transmits an intermediate frequency antenna signal or a high frequency antenna signal. Specifically, the second tunable capacitor 519 includes a first capacitance value and a second capacitance value, the first capacitance value is smaller than the second capacitance value, when the second tunable capacitor 519 has the first capacitance value, the first antenna structure 510 transmits an intermediate frequency antenna signal, and when the second tunable capacitor 519 has the second capacitance value, the first antenna structure 510 transmits a high frequency antenna signal.

In some embodiments, the first feeding end 511 is disposed between the first gap 540 and the first grounding point 514, the second grounding point 523 is disposed adjacent to the first gap 540, and the first antenna structure 510 and the second antenna structure 520 wirelessly couple to transmit antenna signals.

The first antenna structure 510 switches the if antenna signal and the hf antenna signal by switching the capacitance of the second tunable capacitor 519. When the second tunable capacitor 519 is a small capacitor, the first antenna structure 510 generates an intermediate frequency by using a coupling feed manner; when the second tunable capacitor 519 has a large capacitance, the first antenna structure 510 generates a high frequency by using an IFA feeding method, and then adjusts a matching circuit of the first antenna structure 510 as needed. Wherein the first matching circuit of the first antenna arrangement 510 is arranged between the first signal source 513 and the second tunable capacitor 519.

In some embodiments, the medium-high frequency antenna signal may be generated by the first antenna structure 510 on one side of the first gap 540 and the portion coupled between the second ground point 523 in the second antenna structure 520 to the first gap 540, i.e., the medium-high frequency antenna signal may be generated by the first radiator of the first antenna structure 510 of the first end portion 501 and the portion coupled between the second ground point 523 in the second antenna structure 520 to the first gap 540. Specifically, the first signal source 513 excites the first antenna structure 510 through the first matching circuit and excites energy on the first antenna structure 510, while the first antenna structure 510 and the second antenna structure 520 are coupled by spatially coupled electromagnetic energy.

In some embodiments, the second grounding point 523 is disposed adjacent to the first gap 540, the frequency switching point 521 is disposed adjacent to the second gap 550, and the second feeding end 522 is disposed between the second grounding point 523 and the frequency switching point 521.

The second grounding point 523 and the frequency switching point 521 are respectively disposed at two ends of the second antenna structure 520, and the second feeding end 522 is disposed between the second grounding point 523 and the frequency switching point 521, so that the length of the second antenna structure 520 can be maximally utilized. The antenna signal radiates out from the free end of the second antenna structure 520 adjacent the second gap 550.

In some embodiments, the second grounding point 523 is disposed adjacent the second gap 550, the frequency switching point 521 is disposed adjacent the first gap 540, and the second feeding end 522 is disposed between the second grounding point 523 and the frequency switching point 521. The antenna signal radiates out from the free end of the second antenna structure 520 adjacent the first gap 540.

The first antenna structure 510 may be used for transmitting and/or receiving high frequency antenna signals, the first antenna structure 510 may also be used for transmitting and/or receiving intermediate frequency antenna signals, and the second antenna structure 520 may be used for transmitting and/or receiving low frequency antenna signals. The electronic equipment comprises four corners which are respectively arranged on two sides of the top end and two sides of the bottom end of the electronic equipment. Wherein, first antenna structure 510 sets up the first corner at first end 501, what first antenna structure 510 transmitted and/or received is high frequency antenna signal, first antenna structure 510's length is shorter, the higher antenna structure that needs of frequency is shorter, therefore, first antenna structure 510 sets up at first corner, the length that occupies is less, can follow electronic equipment's first end 501 and extend to the side along first corner, namely, first antenna structure 510 is curved, the corner position of rational utilization metal substrate 551, the corner position is difficult to sheltered from in the use. For example, when the electronic device is used in a vertical screen mode, the corner position of the top end of the electronic device is completely opened and is not held by the hand of a user, and the antenna performance is optimal. The second antenna structure 520 is used for transmitting and/or receiving low-frequency antenna signals, the length of the second antenna structure 520 is long, the second antenna structure 520 can be conveniently arranged in the middle of the first end portion 501, similarly, the second antenna structure is arranged at the end portion of the electronic device and is not easily shielded, and the antenna performance can reach the best state. In addition, with the structure of the conventional metal substrate 551, the strength of the metal substrate 551 can be increased while ensuring the antenna performance without additionally providing an antenna. In addition, a first gap 540 is disposed between the first antenna structure 510 and the second antenna structure 520, and the antenna signals of the first antenna structure 510 and the second antenna structure 520 are radiated from the first gap 540.

The first antenna structure 510 includes a first free end adjacent to the first gap 540 and a first connection end opposite the first free end, the first connection end being connected with the body portion 552.

The first free end of the first antenna structure 510 is adjacent to the first gap 540, that is, the first free end and the second antenna structure 520 are respectively disposed at two sides of the first gap 540, and the first connection end of the first antenna structure 510 opposite to the first free end is connected to the main body portion 552 of the metal substrate 551. Specifically, the first antenna structure 510 may be integrally formed with the main body portion 552 through the first connecting end, and the first antenna structure 510 may also be connected with the main body portion 552 through a metal piece. Wherein the first antenna structure 510 may be grounded through the first connection terminal. For example, the first connection terminal is grounded through a wire, and if the body portion 552 of the metal substrate 551 can be used as a ground reference, the first connection terminal can be grounded through the body portion 552. A first feeding end 511 is arranged between two ends of the first antenna structure 510, and a first signal source 513 of the electronic device is coupled to the first antenna structure 510 through the first feeding end 511, and transmits and/or receives antenna signals through the first feeding end 511. The antenna signal is transmitted from the first feeding end 511 to the first free end (i.e. the direction of the first gap 540) via the first antenna structure 510, and the first connecting end of the first antenna structure 510 is grounded to reduce the antenna interference and fix the first antenna structure 510.

In some embodiments, the third antenna structure 530 is disposed at a second corner of the first end portion 501, a second gap 550 is disposed between the third antenna structure 530 and the second antenna structure 520, and a second connection end of the third antenna structure 530, which is far away from the second gap 550, is connected to the main body portion 552. The third antenna structure comprises a third feeding end 531, and the third feeding end 531 is connected to a third signal source 533 through a third matching circuit 532.

The third antenna structure 530 may also transmit WIreless-FIdelity (WIFI).

The third antenna structure 530 is disposed at a second corner of the first end portion 501, and a second gap 550 is disposed between the third antenna structure 530 and the second antenna structure 520, that is, the third antenna structure 530 and the second antenna structure 520 are disposed at two sides of the second gap 550, and a second connection end of the third antenna structure 530, which is far away from the second gap 550, is connected to the main body portion 552. Specifically, the third antenna structure 530 may be integrally formed with the main body portion 552 through the second connecting end, and the third antenna structure 530 may also be connected with the main body portion 552 through a metal piece. Wherein the third antenna structure 530 may be grounded through the second connection terminal. If the second connection terminal is grounded through a wire, the connection body portion 552 is grounded if the body portion 552 of the metal substrate 551 can be used as a reference ground. A third feeding end 531 is disposed between two ends of the third antenna structure 530, and a third signal source 533 of the electronic device is coupled to the third antenna structure 530 through the third feeding end 531, and transmits and/or receives an antenna signal through the third feeding end 531. Antenna signals are transmitted through the third feeding end 531 towards the second gap 550 via the third antenna structure 530, and the second connection end of the third antenna structure 530 is grounded to reduce antenna interference and fix the first antenna structure 510. The third antenna structure 530 may also be grounded via a third ground point 534. A third ground point 534 is disposed adjacent the third connection end.

In some embodiments, the first end portion 501 of the metal substrate 551 is a top portion, the second end portion 23 is a bottom portion, the first corner is a right side of the first end portion 501, i.e., an upper right corner of the metal substrate 551, the second corner is an upper left corner of the metal substrate 551, the third corner 73 is a lower left corner of the metal substrate 551, and the fourth corner 74 is a lower right corner of the metal substrate 551. Of course, the first end 501 may be a bottom, and the second end 23 may be a top. The first corner may be the left side of the first end 501, and the second corner may be the right side of the first end 501.

Referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device further comprises a camera 570, wherein the camera 570 is arranged adjacent to the middle of the first end portion 501 of the metal substrate 551, and the second feeding end 522 and the frequency switching point 521 of the second antenna structure 520 are arranged on two sides of the camera 570.

The electronic equipment such as the smart phone can be provided with the camera 570, and the camera 570 can be a rear camera or a front camera. The camera 570 is disposed adjacent to the middle of the first end 501 of the metal substrate 551, that is, the camera 570 is disposed adjacent to the second antenna structure 520, because the position of the camera 570 and the space for disposing the adjustable energy storage element 526 are limited, the second feeding terminal 522 and the frequency switching point 521 are disposed on both sides of the camera 570. The closer the frequency switching point 521 is to the second ground point 523, the better the antenna signal, but the smaller the frequency range of the adjustable frequency; the further the frequency switching point 521 is from the second ground point 523, the weaker the antenna signal, but the larger the frequency range in which the frequency can be adjusted, so that a suitable position can be found depending on the frequency range and the antenna signal to be adjusted. For example, a second ground point 523 is provided adjacent to the first gap 540, and a frequency switching point 521 is provided intermediate the second gap 550 and the feeding end.

Referring to fig. 10, fig. 10 is a schematic view illustrating a fourth structure of an electronic device according to an embodiment of the present disclosure. The metal substrate 551 in the electronic device further includes a main body portion 552, the through hole 560 is disposed between the main body portion 552 and the first end portion 501, the second antenna structure 520 is fixedly connected to the main body portion 552 of the metal substrate 551 through the first connection portion 553, and the second ground point 523 of the second antenna structure 520 is electrically connected to the main body portion 552 of the metal substrate 551 through the first connection portion 553. The first connection portion 553 may fixedly connect the second antenna structure 520 to the body portion 552 of the metal substrate 551, and simultaneously, may be grounded, while the body portion 552 of the metal substrate 551 is entirely grounded.

It should be noted that the metal substrate 551 may be a metal middle frame of an electronic device, such as a smart phone, the first end portion 501 is a top edge of the metal middle frame, the first antenna structure 510 is a first corner of the top edge, the second antenna structure 520 is a middle portion of the top edge, the third antenna structure 530 is a second corner of the top edge, the first corner and the second corner are respectively disposed at two ends of the top edge, the metal middle frame further includes a main body portion 552, components in the electronic device may be disposed on the main body portion 552, the through hole 560 between the top edge of the metal middle frame and the main body portion 552, and the first gap 540 between the first corner and the middle portion, the second gap 550 between the second corner and the middle portion are filled with a non-metal material, such as plastic, so as to fixedly connect the components together, and make the components non-conductive.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a fifth electronic device according to an embodiment of the present disclosure. The electronic device 60 may include control circuitry, which may include storage and processing circuitry 61. The storage and processing circuit 61 may be a memory, such as a hard disk drive memory, a non-volatile memory (e.g., a flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), a volatile memory (e.g., a static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. Processing circuitry in the storage and processing circuitry 61 may be used to control the operation of the electronic device 60. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

The storage and processing circuitry 61 may be used to run software in the electronic device 60, such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) telephone call application, an email application, a media playing application, operating system functions, and so forth. Such software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., layered) displays, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the electronic device 60, and the like, without limitation in the embodiments of the present application.

The electronic device 60 may also include input-output circuitry 62. Input-output circuitry 62 may be used to enable electronic device 60 to input and output data, i.e., to allow electronic device 60 to receive data from external devices and also to allow electronic device 60 to output data from electronic device 60 to external devices. The input-output circuit 62 may further include a sensor 63. The sensors 63 may include ambient light sensors, optical and capacitive based proximity sensors, touch sensors (e.g., optical based touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or may be used independently as a touch sensor structure), acceleration sensors, and other sensors, among others.

Input-output circuitry 62 may also include one or more displays, such as display 64. The display 64 may include one or a combination of liquid crystal displays, organic light emitting diode displays, electronic ink displays, plasma displays, displays using other display technologies. The display 64 may include an array of touch sensors (i.e., the display 64 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.

The electronic device 60 may also include an audio component 65. Audio component 65 may be used to provide audio input and output functions for electronic device 60. Audio components 65 in electronic device 60 may include speakers, microphones, buzzers, tone generators, and other components for generating and detecting sound.

The communication circuit 66 may be used to provide the electronic device 60 with the ability to communicate with external devices. The communication circuitry 66 may include analog and digital input-output interface circuitry, and wireless communication circuitry based on radio frequency signals and/or optical signals. The wireless communication circuitry in communication circuitry 66 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in Communication circuitry 66 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuit 66 may include a near field communication antenna and a near field communication transceiver. The communications circuitry 66 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuit and antenna, and the like.

The electronic device 60 may further include a battery, power management circuitry, and other input-output units 67. The input-output unit 67 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, etc.

A user may input commands through the input-output circuitry 62 to control the operation of the electronic device 60 and may use the output data of the input-output circuitry 62 to enable receipt of status information and other outputs from the electronic device 60.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The antenna assembly and the electronic device provided by the embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An antenna assembly, comprising:

a first antenna structure formed on a first side of the first end portion;

a second antenna structure formed in the middle of the first end, a first gap being provided between the second antenna structure and the first antenna structure, the first gap being formed to extend from the first end toward the through hole and communicating with the through hole, the second antenna structure being coupled to a second signal source;

a third antenna structure formed on a second side of the first end portion, the second antenna structure being disposed between the first antenna structure and the third antenna structure, a second gap being provided between the third antenna structure and the second antenna structure, the second gap being formed to extend from the first end portion toward the via hole and communicating with the via hole, the third antenna structure being coupled to a third signal source;

the first antenna structure is arranged at an interval from one end adjacent to the first gap and the main body part of the metal substrate through the through hole, and the third antenna structure is arranged at an interval from one end adjacent to the second gap and the main body part of the metal substrate through the through hole;

the second antenna structure is provided with a coupling point, the coupling point is adjacent to the second gap, the coupling point is grounded through an inductor and a capacitor which are connected in series, and the third signal source and the third antenna structure receive antenna signals through the inductor and the capacitor which are connected in series.

2. The antenna assembly of claim 1, wherein the series resonant circuit formed by the series inductor and capacitor is a bandpass filter, and wherein the frequency of the series resonant circuit corresponds to the same frequency as the antenna signal received by the third antenna structure.

3. The antenna assembly of claim 1, wherein the third antenna structure includes a third free end adjacent the second gap and a third connection end opposite the third free end, the third connection end fixedly connected to the body portion of the metal substrate.

4. The antenna assembly of claim 3, wherein the third connection end of the third antenna structure is grounded.

5. The antenna assembly of claim 1, wherein a third grounding point and a third feeding end are provided on the third antenna structure, the third feeding end being provided between the third grounding point and the second gap.

6. The antenna assembly of claim 1, wherein the third antenna structure receives a positioning system signal through the series inductor and capacitor.

7. The antenna assembly of claim 1, wherein the coupling point of the second antenna structure is located at a distance from the second gap in a range from 5mm to 20 mm.

8. The antenna assembly of claim 1, wherein the width of the second gap is in a range of 1.5mm-2 mm.

9. The antenna assembly of claim 1, wherein the first antenna structure includes a first free end adjacent the first gap and a first connection end opposite the first free end, the first connection end being connected to the body portion of the metal substrate;

the first antenna structure is provided with a first grounding point and a first feed end, and the first feed end is arranged between the first grounding point and the first gap.

10. The antenna assembly of claim 1, wherein the first gap and the second gap divide the first end into separate first, second, and third segments, the first segment forming the first antenna structure, the second segment forming the second antenna structure, the third segment forming the third antenna structure, the first segment and the third segment being arcs.

11. An electronic device, comprising an antenna assembly according to any one of claims 1 to 10.