Antenna and electronic equipment

Abstract

The present invention discloses an antenna and an electronic device, comprising: the antenna comprises a metal back shell with at least one through hole; the through hole comprises at least one feeding point and at least one grounding point, the at least one feeding point is used to be electrically connected to the radio frequency circuit of the mainboard, and the at least one grounding point is used to be electrically connected to the grounding circuit of the mainboard.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an antenna and electronic equipment. Background Art

[0002] Due to the portability and diverse functions of smart electronic devices, they have become indispensable devices for people's lives, work, and even studies. After several years of development, smart electronic devices have evolved from the initial non-metallic shell to the popular metal shell. Smart electronic devices with metal shells will give consumers better tactile and visual experience, and can better win the favor of consumers.

[0003] However, metal shells are good conductors and shields for electromagnetic waves, which can almost completely block the forward propagation of electromagnetic waves. When smart electronic devices use metal as shells, a completely enclosed smart electronic device shell can completely enclose the electromagnetic waves radiated by the antenna of the smart electronic device inside the electronic device, making it impossible to communicate with the outside world.

[0004] In order to meet the requirements of antenna design, the back casing of many electronic devices on the market is interrupted, generally divided into three sections, with the top and bottom parts being relatively small and the middle part being the largest. This structure seriously affects the appearance of the electronic device, the smoothness of the metal feel is affected, and the user experience is affected. In addition, the processing cost of the casing of an electronic device with multiple parts is higher, and alignment is required, resulting in a low production yield. Summary of the invention

[0005] The embodiments of the present invention provide an antenna and an electronic device, which are used to solve the problem in the prior art that the metal back shell of the electronic device is designed to be interrupted, which affects the appearance and productivity.

[0006] An embodiment of the present invention provides an antenna, comprising a metal back shell having at least one through hole;

[0007] The through hole includes at least one feeding point and at least one grounding point, wherein the at least one feeding point is used to be electrically connected to the radio frequency circuit of the mainboard, and the at least one grounding point is used to be electrically connected to the grounding circuit of the mainboard.

[0008] In a possible implementation, the metal back shell includes a plurality of through holes;

[0009] For each through hole, the feeding point of the through hole is electrically connected to the radio frequency circuit of the mainboard through the feeding line corresponding to the through hole.

[0010] In a possible implementation manner, the multiple through holes are respectively configured as radiation windows of antennas of different frequency bands.

[0011] In a possible implementation manner, the metal back shell includes a plurality of through holes; at least one through hole among the plurality of through holes includes at least two sub-through holes that are interconnected.

[0012] In a possible implementation manner, the at least two interconnected sub-through holes are connected via a gap, and at least one feeding point and at least one grounding point are provided on the gap or the at least two sub-through holes.

[0013] In a possible implementation manner, the inner edge of the through hole has an extension portion connected to the through hole; the extension portion is composed of a gap, and the shape of the gap matches the inner edge of the through hole.

[0014] In a possible implementation, the at least one through hole or the sub-through hole included in the through hole is located at any one or more of an area of ​​a camera lens of the electronic device, an area of ​​a fingerprint recognition module, and an area of ​​an LED light-emitting module.

[0015] In a possible implementation, the through hole corresponding to the area of ​​the camera lens is a square sub-through hole; the through hole corresponding to the area of ​​the fingerprint recognition module is a circular sub-through hole; the through hole corresponding to the area of ​​the LED light-emitting module is an elliptical through hole; the square sub-through hole is connected to the circular sub-through hole through a gap.

[0016] An embodiment of the present invention provides an electronic device, and the electronic device includes any antenna as described in the embodiment.

[0017] In a possible implementation, a metal layer is provided on one side of the mainboard to serve as a grounding circuit of the mainboard;

[0018] At least one feeder is disposed on the other side of the mainboard, one end of the at least one feeder is electrically connected to at least one feed point of the at least one through hole, and the other end of the at least one feeder is electrically connected to the radio frequency circuit of the mainboard.

[0019] The embodiment of the present invention provides an antenna and an electronic device, comprising a metal back shell having at least one through hole; the through hole comprises at least one feeding point and at least one grounding point, the at least one feeding point is used to be electrically connected to the RF circuit of the mainboard, and the at least one grounding point is used to be electrically connected to the grounding circuit of the mainboard. Therefore, there is no need to add an additional seam to the metal back shell, but the through hole of the existing metal back shell is used as the radiation window of the antenna, which effectively improves the aesthetics of the housing of the electronic device and the yield of the product while ensuring the performance of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of an antenna provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of an antenna provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of an antenna provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of an antenna provided by an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of an antenna provided by an embodiment of the present invention;

[0026] Figure 6 A radiation schematic diagram of an antenna provided in an embodiment of the present invention;

[0027] Figure 6a A radiation schematic diagram of an antenna provided in an embodiment of the present invention;

[0028] Figure 6b A radiation schematic diagram of an antenna provided in an embodiment of the present invention;

[0029] Figure 6c A radiation schematic diagram of an antenna provided in an embodiment of the present invention;

[0030] Figure 6d A radiation schematic diagram of an antenna provided in an embodiment of the present invention;

[0031] Figure 6e A radiation schematic diagram of an antenna provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other arbitrarily. In addition, although the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in an order different from that here.

[0033] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0034] Antennas are converters between high-frequency electrical signals and radio electromagnetic waves. They can convert high-frequency currents into radio electromagnetic waves to radiate far away, and also transmit the information carried in the electromagnetic waves to far away. At the same time, antennas can also convert electromagnetic wave signals propagating in space into high-frequency current signals, and obtain the information carried in the electromagnetic waves to achieve wireless communication. Antennas are a converter between high-frequency current and radio electromagnetic waves, and are also necessary equipment for wireless communication devices.

[0035] In the embodiment of the present invention, the electronic device may be a portable mobile terminal, such as a mobile phone, a tablet computer (PDA), a wearable device, etc. Of course, the type of the electronic device in the embodiment of the present invention is not limited thereto.

[0036] Today's electronic devices usually have wireless communication functions, and antennas are one of the necessary communication devices in electronic devices for realizing wireless communication. Taking smart phones as an example of the electronic devices in the embodiments of the present invention, smart phones have evolved from the initial non-metallic shell to the popular metal shell. For the signal transmission of the antenna, the influence of the metal shell and the non-metallic shell is obvious. The non-metallic mobile phone shell does not have much impact on the electromagnetic waves radiated by the mobile phone antenna, or it does not have much impact on the radiation performance of the antenna. However, mobile phones with metal shells will give consumers better tactile and visual experience, which can better improve the user experience.

[0037] Since metal conductors are shields for electromagnetic waves, they can completely block the forward propagation of electromagnetic waves. When a mobile phone uses a metal shell, a completely enclosed mobile phone shell can completely enclose the electromagnetic waves radiated by the smartphone antenna inside the phone, making it impossible to communicate with the outside world. In order to achieve wireless communication, there are roughly two ideas for the antenna design of a full-metal shell smart terminal: one is to use the metal body shell as the main component for radiating electromagnetic waves, and the other is to use the gaps on the metal shell for electromagnetic radiation. The biggest disadvantage of the antenna using the shell radiation is that when the mobile phone is in use, the hand holding the mobile phone will absorb part of the signal, causing signal loss and signal degradation. When using the gaps on the metal shell to radiate electromagnetic waves, the user's body has little effect on the radiation performance, but it leads to the need to leave gaps in the back shell or frame during production. Generally, it is divided into three sections, the top and bottom parts are relatively small, and the middle part is the largest. This method leads to higher requirements for the manufacturing process, and also greatly restricts the overall design of the mobile phone, affecting the user experience.

[0038] Therefore, in order to improve user experience and reduce process costs, an antenna is provided in an embodiment of the present invention, such as Figure 1 As shown, it is a schematic diagram of the internal structure of an antenna provided in an embodiment of the present invention, taking one through hole as an example, comprising a metal back shell 100 having at least one through hole 101; the through hole 101 comprises at least one feeding point 111 and at least one grounding point 121, at least one feeding point 111 is used to be electrically connected to the RF circuit 131 of the mainboard, and the at least one grounding point 121 is used to be electrically connected to the grounding circuit of the mainboard.

[0039] Taking the terminal device as a mobile phone as an example, in an embodiment of the present invention, the metal frame and metal back shell of the mobile phone can be set to be closed without breakpoints. Generally speaking, the metal back shell and the metal frame can be regular polygons such as rectangles and rounded rectangles. Depending on the design, the metal back shell and the metal frame can also be other shapes, and the present invention does not impose specific restrictions on this.

[0040] In the embodiment of the present invention, through holes in the back shell structure of the mobile phone are used, such as camera lens holes, fingerprint recognition holes, etc. These through holes can be used as radiation windows of electromagnetic waves after certain design, and there is no need to cut the metal back shell or metal frame, so that the metal back shell and the metal frame are not separated and are integrally formed, which changes the implementation form of the antenna in the existing smart phone and improves the value of the product in many aspects. The appearance is more beautiful, the metal feel is stronger, the cost is lower, the production yield is higher, and the product is more competitive.

[0041] The RF circuit 131 of the mainboard can be arranged on the mainboard, and the mainboard can be a PCB (Printed Circuit Board) circuit board integrated with the mainboard circuit of a smart phone. Generally speaking, the mainboard is a regular polygon, such as a rectangle or a rounded rectangle. In the embodiment of the present invention, the size of the circuit board can be specifically set by those skilled in the art according to the structure of the terminal device to which the through-hole antenna is applied, and the present invention does not impose specific restrictions on this.

[0042] Specifically, the PCB circuit board may be rectangular, with a length of 140 mm to 155 mm and a width of 75 mm to 85 mm. The material of the PCB circuit board may be glass fiber epoxy resin copper clad board FR4 with a dielectric constant of 4.4±5%.

[0043] The upper surface of the PCB circuit board is printed with a feed line 141. The feed line 141 can be a microstrip structure, and the upper surface of the PCB circuit board is etched with a metal wire perpendicular to the connection gap direction of the two main radiation windows as the microstrip feed line of the antenna. One end of the feed line 141 is electrically connected to the RF circuit 131 of the main board, and the other end is electrically connected to the feeding point 111 of the through hole.

[0044] The feed line 141 is located on the upper surface of the rectangular dielectric plate. The feed line 141 can be perpendicular to the long side of the rectangular dielectric plate and located between the square and circular windows. The length of the feed line 141 can be set according to the position of the feeding point of the through hole. A specific implementation method is as follows: Figure 1 As shown, a feed line 141 is printed on the upper surface of the dielectric substrate at a position 41±5% mm away from the center. The length of the feed line 141 can be set to 44 mm to 55 mm, and the width can be 1.8 mm to 2.4 mm. Of course, the feeding implementation method and feeding position of the feed line 141 can be adjusted according to the product and may not be limited to this specific implementation scheme, as long as the antenna feeding function is realized, the feeding points of each antenna are connected, and the routing method of the microstrip feeding structure is met.

[0045] The lower surface of the dielectric substrate can be set as a grounding plate of the same size as the dielectric substrate, that is, a rectangular metal layer of the same size is printed on the bottom surface of the PCB circuit board as the grounding plate of the antenna, which is used to electrically connect with the grounding point 121 of the through hole 101; its thickness is extremely small, which can be 34um to 36um, and will not increase the thickness of the main board. The metal material used is copper. The surface of the copper layer is smooth, without scratches, sand holes and wrinkles, etc., and the purity of the metal copper is not less than 99.8%.

[0046] In the specific implementation process, a conductive component can be set between the feeding point 111 of the through hole 101 and the feeding line 141, and between the grounding point 121 of the through hole 101 and the grounding plate, so that at least one feeding point 111 is used to be electrically connected to the RF circuit 131 of the mainboard, and the at least one grounding point 121 is used to be electrically connected to the grounding circuit of the mainboard, thereby forming a feeding circuit for the antenna, with the through hole as the main radiator of the antenna. Through the feeding point 111 and the feeding line 141, the antenna can receive the RF signal to be sent by the terminal device and send it out, and transmit the received RF signal to the RF transceiver circuit in the terminal device through the feeding line 141.

[0047] In the embodiment of the present invention, the conductive component may be one or more metal strips or metal sheets with a certain width. The embodiment of the present invention does not specifically limit the material of the metal strip / metal sheet, and generally speaking, it may be copper. Those skilled in the art may specifically set the location of the feeding point according to the actual situation such as the frequency band required for the antenna to work, and the present invention does not specifically limit this.

[0048] At present, in addition to achieving multi-standard communication coverage for global roaming functions, the frequency bands of mobile phone antennas are also required to integrate GPS, WLAN, WiMAX, Wi-Fi, DVB-H, RFID and UWB, NFC, and DMB and other wireless communication bands. Therefore, the antenna needs to meet a certain size to design an effective resonant path in order to generate the required radiation energy and achieve the purpose of multi-band broadband. However, the reserved space for the antenna part inside the mobile phone will not increase with the increase of communication systems. Instead, in order to pursue the ultra-thin smart phone feel and maximize the screen occupancy ratio, the distribution space of the antenna will be compressed as much as possible, resulting in a smaller and smaller clearance area.

[0049] In the embodiment of the present invention, electromagnetic waves are radiated by the through holes in the back shell structure of the mobile phone, and some functional windows of the full metal back shell of the mobile phone are fed, and the frequency of effective radiation is adjusted to various working frequencies of the mobile phone. It can realize the antenna function of part or all of the mobile phone, improve the performance of the current mobile phone monopole antenna, and thus improve the performance of the whole machine.

[0050] Combination Figure 1 ,like Figure 2 As shown, in a specific embodiment, taking two through holes as an example, the metal back shell 100 includes a plurality of through holes 101-102;

[0051] For each through hole 101 - 102 , the feeding point 111 - 112 of the through hole 101 - 102 is electrically connected to the RF circuit 131 of the mainboard through the feeding line 141 corresponding to the through hole 101 - 102 .

[0052] In the embodiment of the present invention, a feeding point and a grounding point are respectively provided on each through hole for illustration. It should be noted that in practical applications, the positions and numbers of the feeding points and the grounding points can be adjusted according to actual needs, and are not limited here.

[0053] Through holes 101-102 can be window opening areas of functional modules of the metal mobile phone back shell, for example, LED lighting device windows, camera lens windows, fingerprint recognition hole windows. Of course, it is not limited to these device windows, and the window shape can be circular, rectangular, triangular, elliptical and other irregular shapes.

[0054] In the embodiment of the present invention, electromagnetic waves are radiated by utilizing multiple through holes in the back shell structure of the mobile phone. The flexibility of adjusting the working frequency of the mobile phone is effectively improved through the shape of the through holes and the setting of the feeding point and the grounding point, thereby making it easier to assume part or all of the antenna functions of the mobile phone, improve the performance of the current mobile phone monopole antenna, and the isolation between MIMO antennas, thereby improving the performance of the entire machine.

[0055] In a possible implementation, the plurality of through holes 101 - 102 are respectively configured as radiation windows of antennas of different frequency bands.

[0056] like Figure 2 As shown, in a specific implementation process, the mainboard may include through holes 101-102, and the through holes 101-102 correspond to the window area of ​​the functional module of the metal mobile phone back shell. Taking a circular through hole 101 and an elliptical through hole 102 as an example, there is a certain distance between the through holes 101-102. The elliptical through hole 102 serves as a window for the LED light-emitting device, and the through hole 101 can be a fingerprint recognition device hole. For example, the through hole 101 is a circular slit window with a radius of 6mm to 9mm, and a smaller elliptical through hole 102 is etched on the left side of the through hole 101. The major axis of the through hole 102 is 6±5% mm, the minor axis is 4±5% mm, and the distance between the center of the through hole 101 and the center of the through hole 102 is 14±5% mm.

[0057] Through holes 101 and 102 can be respectively set as radiation windows of antennas of different frequency bands. For each through hole, feeding points 111-112 and grounding points 121-122 can be respectively set on each through hole. By adjusting the positions of the feeding points and the grounding points, the radiation frequency band of the antenna can be adjusted accordingly. Each radiation window is electrically connected to the feeding line 141 through the feeding point on each radiation window to achieve feeding, thereby achieving electromagnetic radiation.

[0058] In the embodiment of the present invention, by utilizing multiple through holes in the back shell structure of the mobile phone to radiate electromagnetic waves, the flexibility of adjusting the working frequency of the mobile phone is effectively improved, thereby making it easier to assume part or all of the antenna functions of the mobile phone, thereby improving the isolation between multiple antennas of the current mobile phone, and thus improving the performance of the entire machine.

[0059] In order to enhance the resonance of the signal generated by the through hole and improve the radiation performance of the antenna in multiple frequency bands, such as Figure 3 As shown, in a specific embodiment, the metal back shell 100 includes a plurality of through holes 102, 301; at least one through hole 301 among the plurality of through holes 102, 301 includes at least two sub-through holes 103-104 that are interconnected.

[0060] In a specific embodiment, the locations of the through holes 101-102 or the sub-through holes 103-104 included in the through hole 301 can be any one or more of the area of ​​the camera lens of the electronic device, the area of ​​the fingerprint recognition module, and the area of ​​the LED light-emitting module.

[0061] For example, Figure 2 As shown, the through hole 102 corresponding to the area of ​​the LED light-emitting module is an elliptical through hole; Figure 3 As shown, the sub-through hole 104 corresponding to the camera lens area is a square sub-through hole; the sub-through hole 103 corresponding to the fingerprint recognition module area is a circular sub-through hole; the square sub-through hole 103 is connected to the circular sub-through hole 104 through a gap 311.

[0062] In specific applications, the arrangement can be made according to the layout of specific components such as the LED light window, the square fingerprint recognition window, and the circular camera lens window, and no limitation is made here.

[0063] Combination Figure 3 The positions of through hole 102, sub-through hole 103, and sub-through hole 104 are distributed on the same side half of the main board deviating from the center along the axis. The sub-through holes 103-104 and the center of the main board are on the same straight line, the centers of through hole 102 and sub-through hole 103 are on the same straight line, and the above two center lines are perpendicular to each other. There is a certain distance between each two windows of the three through holes 102, 103, and 104, ranging from 5mm to 15mm.

[0064] In order to enhance the resonance of the signal generated by the rectangular through hole and improve the radiation performance of the antenna in multiple frequency bands of radio frequency signals, in the embodiment of the present application, Figure 3 In the embodiment, at least two interconnected sub-through holes 103-104 are connected through a gap 311, and at least one feeding point and at least one grounding point are provided on the gap 311. Here, Figure 3In the figure, setting a feeding point 321 and a grounding point 322 is taken as an example for description.

[0065] Of course, at least one feeding point and at least one grounding point may be provided on at least two sub-through holes 103 - 104 .

[0066] In a specific implementation process, the sub-through holes 103-104 can be fingerprint recognition device holes and camera lens holes, respectively. For example, a small gap connecting the above-mentioned sub-through hole 103 and sub-through hole 104 is etched along the center line, and the length of the gap is 11.07±1% mm and the width is 2±3% mm. A square sub-through hole 103 with a side length of 14mm~18mm and a circular sub-through hole 104 with a radius of 6mm~9mm are designed at a position 15mm~20mm away from the center along the long side direction of the mainboard, and a certain distance is maintained between the sub-through holes 103 and the sub-through holes 104. Specifically, the length of the gap is the distance between the two windows, and the width of the gap can be 1.5mm~2.5mm. The antenna with through hole 301 as the radiation window can be fed through the feeding point at the gap 311 using the feeding line 141 on the upper layer of the mainboard to achieve electromagnetic radiation.

[0067] Of course, there may be other connection modes, such as point contact connection modes, which are not limited here.

[0068] In order to enhance the multi-band signal of the antenna, such as Figure 4 As shown, a possible implementation method is that the metal back shell includes a through hole 401, and the inner edge of the through hole 401 has an extension portion connected to the through hole 401; the extension portion is composed of a gap, and the shape of the gap matches the inner edge of the through hole.

[0069] In a specific embodiment, two small slits are etched around the through hole 401 as extensions, with lengths of the square side length and twice the side length, and a small width. For example, the lengths of the two small slits can be 14 mm to 15 mm and twice the side length of the square 28 mm to 30 mm, respectively, and the width can be 0.5 mm to 0.8 mm.

[0070] Of course, there may be other extension methods. For example, when the through hole 401 is circular, at least one thin slit is etched along the periphery of the through hole 401 , and the length of the slit is smaller than the circumference of the through hole 401 .

[0071] The present application also provides an antenna, such as Figure 5 As shown, it includes a through hole 501, and the through hole 501 includes sub-through holes 103 and 401; the sub-through holes 103 and 401 are connected through a gap 502; the feeding point of the through hole 501 is 501; of course, multiple feeding points can also be set to adjust the frequency band of the antenna.

[0072] Combination Figure 5 , Figure 6 The figure exemplarily shows the S parameter simulation result of the scattering parameter of the antenna provided by the embodiment of the present invention. Figure 6 As shown, the slot antenna has three resonant frequencies. The first resonant frequency is near the 1.575 GHz frequency band, which can be used in GPS; the second resonant frequency is near 2.4 GHz, which can be used in WiFi 2.4G and BT; the third resonant frequency is near 5.0 GHz, which can be used in WiFi 5.0 GHz.

[0073] In an embodiment of the present invention, multiple resonant modes can be generated in the antenna, including a first-order mode (fundamental mode) of 2.4 GHz and a second-order mode of 5.0 GHz. In this way, the antenna can operate in the wireless-fidelity (WiFi) 5.0 GHz band, the WiFi 2.4 GHz band and the Bluetooth (BT) band.

[0074] Combination Figure 6 , Figure 6a The far-field radiation pattern of the antenna provided in the embodiment of the present invention, wherein Figure 6a is the far-field radiation pattern at 0.8 GHz, Figure 6b is the far-field radiation pattern at 1.30 GHz, Figure 6c is the far-field radiation pattern at 1.90 GHz, Figure 6d is the far-field radiation pattern at 2.08 GHz, Figure 6e This is the far-field radiation pattern at 2.40 GHz.

[0075] It can be seen from the above results that the antenna in the embodiment of the present invention can operate at multiple frequencies below 3 GHz, especially at the 0.8 GHz operating frequency of communication and the 2.4 GHz operating frequency of WLAN, and has good radiation effect.

[0076] An embodiment of the present invention further provides an electronic device, and the electronic device includes the antenna of any one of the above embodiments.

[0077] In a possible implementation, a metal layer is provided on one side of the mainboard, serving as a grounding circuit of the mainboard; at least one feeder is provided on the other side of the mainboard, one end of the at least one feeder is electrically connected to at least one feeding point of the at least one through hole, and the other end of the at least one feeder is electrically connected to the RF circuit of the mainboard and the antenna chip.

[0078] In addition to the slot antenna in any of the above embodiments, the electronic device provided by the embodiment of the present invention may also include: a processing component, a memory, a power component, a multimedia component, an audio component, an input / output interface, a communication component, etc.

[0079] Among them, the processing component is used for the overall operation of the terminal device, such as display, phone calls, data communications, etc., and it may include one or more processors to execute instructions to complete operations such as wireless communication.

[0080] The memory may be implemented by any type of volatile or non-volatile storage media or a combination thereof, such as static random access memory (SRAM), erasable programmable read-only memory (EPROM), and the like.

[0081] The power supply component is used to provide power to various components of the terminal device, and may further include a power management system, one or more power supplies, and other components that generate, manage and distribute power for the terminal device.

[0082] The communication component is used to support wired or wireless communication between the terminal device and other devices. The terminal device can access a wireless network based on any communication standard or a combination thereof, such as 2G, 3G, 4G, LTE, etc.

[0083] The multimedia component is used to display multimedia content to the user. The multimedia component may include a display screen and / or a touch panel (TP). The display screen may be a liquid crystal display (LCD) or an organic light-emitting diode display (OLED). The multimedia component may also include a front camera and / or a rear camera for receiving external multimedia data.

[0084] The audio component can be used to input and output audio signals, and may include, for example, microphones, receivers, speakers, and other devices.

[0085] In an embodiment of the present invention, the terminal device can also be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, and the present invention does not impose specific limitations on this.

[0086] From the above content, it can be seen that the beneficial effects of the present invention are:

[0087] In the embodiment of the present invention, the through holes in the existing metal back shell are used for feeding to form a slot antenna, and the antenna operates at multiple frequency points below 3 GHz, for example, the 0.8 GHz operating frequency points of communication and the 2.4 GHz operating frequency points of WLAN, both of which have good radiation effects and can separate the antenna function of a part of the frequency band, thereby reducing the problem that the existing metal back shell antenna occupies a large volume and affects the appearance.

[0088] In the embodiment of the present invention, there is no need to set breakpoints on the metal frame. Instead, a feeding point and a grounding point are set on the through hole on the metal back shell, and electrically connected to the feeding line on the circuit board, so that an antenna is formed between the through hole and the circuit board. This antenna design is more compact, effectively saving antenna layout space, and meeting the requirements of miniaturization and aesthetics of terminal equipment. In addition, since the through hole can be set to a variety of shapes, the positions of the feeding point and the grounding point can also be adjusted according to needs, so that the slot antenna can work in multiple communication frequency bands, thereby reducing the number of antennas in the terminal device, saving space for the terminal device motherboard circuit, and improving the usability of the terminal device.

[0089] In addition, the manufacturing process used for the antenna and electronic device in the embodiment of the present invention is simple, all structures adopt printed structures, and the dielectric substrate adopts the most common plate material of PCB board, which is inexpensive, easy to purchase, low in manufacturing cost, easy to process, and can be mass-produced, and has great practical application value.

[0090] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0091] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0092] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0093] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0094] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0095] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0096] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An antenna, characterized in that: comprising a metal back shell having a plurality of through holes; At least one through hole among the plurality of through holes comprises at least two interconnected sub-through holes; the at least two interconnected sub-through holes comprise a square sub-through hole and a circular sub-through hole that are interconnected, the inner edge of the square sub-through hole having an extension connected to the square sub-through hole; the extension is composed of a slit, the shape of the slit matches the inner edge of the sub-through hole; There are two slits, and the lengths of the slits are respectively twice the length of the side of the square and the length of the positive direction side; The through hole includes at least one feeding point and at least one grounding point, the at least one feeding point is used to be electrically connected to the radio frequency circuit of the mainboard, and the at least one grounding point is used to be electrically connected to the grounding circuit of the mainboard; Wherein, the metal back shell is used for electronic equipment, and the through hole is a window opening area of ​​a functional module of the metal back shell.

2. The antenna according to claim 1, characterized in that The metal back shell includes a plurality of through holes; For each through hole, the feeding point of the through hole is electrically connected to the radio frequency circuit of the mainboard through the feeding line corresponding to the through hole.

3. The antenna according to claim 2, characterized in that The multiple through holes are respectively arranged as radiation windows of antennas of different frequency bands.

4. The antenna according to claim 1, characterized in that The at least two interconnected sub-through holes are connected via a gap, and at least one feeding point and at least one grounding point are arranged on the gap or the at least two sub-through holes.

5. The antenna according to claim 1, wherein: The at least one through hole or the sub-through hole included in the through hole is located at any one or more of the area of ​​the camera lens of the electronic device, the area of ​​the fingerprint recognition module, and the area of ​​the LED light-emitting module.

6. The antenna according to claim 5, characterized in that The through hole corresponding to the area of ​​the camera lens is a square sub-through hole; the through hole corresponding to the area of ​​the fingerprint recognition module is a circular sub-through hole; the through hole corresponding to the area of ​​the LED light-emitting module is an elliptical through hole; the square sub-through hole is connected to the circular sub-through hole through a gap.

7. An electronic device, characterized in that: The electronic device comprises the antenna according to any one of claims 1 to 6.

8. The electronic device according to claim 7, characterized in that: A metal layer is provided on one side of the mainboard, serving as a grounding circuit of the mainboard; At least one feeder is disposed on the other side of the mainboard, one end of the at least one feeder is electrically connected to at least one feed point of the at least one through hole, and the other end of the at least one feeder is electrically connected to the radio frequency circuit of the mainboard.

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