Antenna structure and electronic equipment

Abstract

The invention provides an antenna structure and electronic equipment, and belongs to the technical field of antennas. The antenna structure comprises a frame branch knot and a parasitic branch knot. The frame branch knot comprises a first end part and a second end part, and the parasitic branch knot comprises a third end part and a fourth end part; the first end part and the third end part are arranged at an interval through a breaking joint structure, and the second end part and the fourth end part are respectively grounded; a feeding point is arranged on the frame branch knot; the feeding point is located between the first end portion and the second end portion, the distance between the feeding point and the first end portion is a, the distance between the feeding point and the second end portion is b, the distance between the third end portion and the fourth end portion is c, and b is larger than or equal to a and larger than or equal to c. According to the antenna structure provided by the invention, the working mode covering the MHB + N78 frequency band can be excited under the condition that the positions of the feeding point and the breaking joint structure are relatively fixed, so that the MHB + N78 antenna can be arranged in the key area, and the loss of the antenna performance is reduced by utilizing a relatively good holding environment of the key area.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an antenna structure and an electronic device. Background Art

[0002] With the development of mobile phone terminals, the antenna form has changed from external antenna to frame antenna. In order to make full use of the side space of the mobile phone, antennas are usually arranged in the button area (such as volume button and power button). The button area has a good holding environment in both one-handed and two-handed scenarios, and the antenna performance decreases less.

[0003] However, the antenna structure in the related art cannot achieve the frequency coverage of MHB+N78 due to the small selection range of the feeding point and the break position. Summary of the invention

[0004] The present application provides an antenna structure and an electronic device, which can solve the problem that the antenna structure cannot achieve the frequency coverage of MHB+N78 due to the small selection range of the positions of the feeding point and the break.

[0005] The technical solution is as follows:

[0006] In one aspect, an antenna structure is provided, the antenna structure comprising: a frame branch and a parasitic branch;

[0007] The frame branch includes a first end and a second end, and the parasitic branch includes a third end and a fourth end; the first end and the third end are arranged at intervals through a fracture structure, and the second end and the fourth end are grounded respectively;

[0008] A feeding point is provided on the frame branches;

[0009] The feeding point is located between the first end and the second end, the distance between the feeding point and the first end is a, the distance between the feeding point and the second end is b, and the distance between the third end and the fourth end is c, wherein a≥b≥c.

[0010] In some embodiments, the value range of a is 15mm-20mm; the value range of b is 10mm-15mm; the value range of c is 5mm-10mm.

[0011] In some embodiments, the operating mode of the antenna structure includes a first operating mode, a second operating mode, and a third operating mode;

[0012] The first working mode is a mixed mode of the loop mode from the feeding point to the slot structure and the 3 / 4 wavelength mode of the antenna structure; the second working mode is the monopole mode from the feeding point to the first end; and the third working mode is the 3 / 4 wavelength mode of the antenna structure.

[0013] In some embodiments, when the antenna structure is in the first working mode, the antenna structure can cover the N78 frequency band.

[0014] In some embodiments, when the antenna structure is in the second working mode, the antenna structure can cover the B1 frequency band and the B3 frequency band.

[0015] In some embodiments, when the antenna structure is in the third working mode, the antenna structure can cover the B7 frequency band and the B40 frequency band.

[0016] In some embodiments, the antenna structure includes a circuit module, an input end of the circuit module is used to connect to a radio frequency circuit, and an output end of the circuit module is electrically connected to the feeding point.

[0017] In some embodiments, the circuit module includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first inductor, a second inductor, a third inductor and a switch unit;

[0018] The switch unit includes a first terminal, a second terminal, a third terminal, a fourth terminal and a common terminal;

[0019] One end of the first capacitor is electrically connected to the input end, the other end of the first capacitor is electrically connected to one end of the first inductor and the common terminal respectively, the other end of the first inductor is electrically connected to the output end and one end of the second inductor, and the other end of the second inductor is electrically connected to the first terminal; one end of the second capacitor is electrically connected to the input end, and the other end of the second capacitor is grounded;

[0020] The second terminal is grounded through the fourth capacitor, the third terminal is grounded through the third capacitor, the fourth terminal is electrically connected to one end of the third inductor, and the other end of the third inductor is electrically connected to the output end.

[0021] In some embodiments, when the switch unit is completely disconnected and the antenna structure operates in the first operating mode, the antenna structure covers the N78 frequency band;

[0022] When the third terminal and the common terminal are connected and the antenna structure works in the second working mode, the antenna structure covers the B3 frequency band;

[0023] The first terminal and the third terminal are respectively connected to the common terminal, and when the antenna structure works in the second working mode, the antenna structure covers the B1 frequency band;

[0024] The second terminal and the fourth terminal are respectively connected to the common terminal, and when the antenna structure works in the third working mode, the antenna structure covers the B40 frequency band;

[0025] When the fourth terminal is connected to the common terminal and the antenna structure operates in the third operating mode, the antenna structure covers the B7 frequency band.

[0026] On the other hand, an electronic device is provided, wherein the electronic device comprises the antenna structure described in the present application.

[0027] The beneficial effects of the technical solution provided by this application include at least:

[0028] The antenna structure of the present application includes a frame branch and a parasitic branch, and a fracture structure is provided between the frame branch and the parasitic branch. The feeding point is located on the frame branch, and the distance from the feeding point to the first end of the frame branch is greater than or equal to the distance from the feeding point to the second end of the frame branch, and the distance from the feeding point to the second end of the frame branch is greater than or equal to the distance between the two ends of the parasitic branch. By utilizing the mutual cooperation between the frame branch and the parasitic branch, an operating mode covering the MHB+N78 frequency band can be stimulated when the positions of the feeding point and the fracture structure are relatively fixed, so that the MHB+N78 antenna can be arranged in the key area, and the better holding environment of the key area can be utilized to reduce the loss of antenna performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 is a structural schematic diagram of an antenna structure provided in an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the structure of a circuit module provided in an embodiment of the present application;

[0032] Figure 3 is a schematic diagram of a partial structure of an electronic device provided in an embodiment of the present application;

[0033] Figure 4 is a return loss effect diagram of the antenna structure provided in an embodiment of the present application;

[0034] Figure 5 is a working efficiency effect diagram of the antenna structure provided in an embodiment of the present application;

[0035] Figure 6 The current distribution of the loop mode from the feeding point to the fracture structure of the antenna structure provided by the embodiment of the present application at 3.5 GHz in the first working mode;

[0036] Figure 7 It is the current distribution of the 3 / 4 wavelength mode of the antenna structure in the first working mode at 3.5 GHz provided by the embodiment of the present application;

[0037] Figure 8 It is the current distribution of the antenna structure provided in the embodiment of the present application at 1.7 GHz and the second working mode;

[0038] Fig. 9 This is the current distribution of the antenna structure provided in the embodiment of the present application at 2.5 GHz and the third working mode.

[0039] The reference numerals in the figures represent respectively:

[0040] 1. Border branches;

[0041] 101, first end; 102, second end;

[0042] 11. Feeding point;

[0043] 2. Parasitic branches;

[0044] 201, third end; 202, fourth end;

[0045] 3. Circuit module;

[0046] 301, input end; 302, output end;

[0047] 31. a first capacitor; 32. a second capacitor; 33. a third capacitor; 34. a fourth capacitor; 35. a first inductor; 36. a second inductor; 37. a third inductor; 38. a switch unit;

[0048] 381, first terminal; 382, ​​second terminal; 383, third terminal; 384, fourth terminal; 385, common terminal;

[0049] 4. Fracture structure;

[0050] 5. RF circuit;

[0051] 6. Button assembly;

[0052] 61. Volume button; 62. Power button;

[0053] 7. Rear camera module;

[0054] 8. Battery module. DETAILED DESCRIPTION

[0055] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is connected to B, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0058] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0059] In the related technology, the antenna is placed at the button of the mobile phone (volume button and power button), making full use of the side space of the mobile phone. The antenna will not be grasped by one hand or both hands, and the antenna performance will be less reduced. However, due to the particularity of the button position, the antenna length, the position of the gap and the clearance width are obviously limited. The performance of the antenna here is poor, and it is difficult to meet the main radiation performance. The antenna performance is poor and cannot bear the radiation capacity of the main antenna to meet the internal and operator standards.

[0060] Since this area is close to the rear camera module and the button position is relatively fixed, the antenna feeding point can only be located between the two membrane buttons (Metal Dome Array), with a small adjustable range. At the same time, the antenna gap can only be located on the outside of the button, making the antenna unable to cover the MHB+N78 frequency band.

[0061] Therefore, the present application provides an antenna structure, which utilizes the mutual cooperation of frame branches and parasitic branches to stimulate an operating mode covering the MHB+N78 frequency band when the feeding point and the position of the fracture structure are relatively fixed, so that the MHB+N78 antenna can be arranged in the button area, utilizing the better holding environment of the button area to reduce the loss of antenna performance.

[0062] The technical solution provided in this application is applicable to electronic devices that adopt one or more of the following communication technologies: Bluetooth (Blue Tooth, BT) communication technology, Global Positioning System (Global Positioning System, GPS) communication technology, Wireless Fidelity (Wireless Fidelity, WiFi) communication technology, Global System For mobile communications (Global System For mobile Communications, GSM) communication technology, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) communication technology, Long Term Evolution (Long Term Evolution, LTE) communication technology, 5G communication technology and other future communication technologies.

[0063] The electronic device may be referred to as user equipment (UE) or terminal, etc. For example, the electronic device may be a portable android device (PAD), a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc., a mobile terminal or a fixed terminal. In the embodiments of the present application, the form of the terminal device is not specifically limited.

[0064] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0065] On the one hand, combined with Figure 1-3 As shown, this embodiment provides an antenna structure, which includes: a frame branch 1 and a parasitic branch 2; the frame branch 1 includes a first end 101 and a second end 102, and the parasitic branch 2 includes a third end 201 and a fourth end 202; the first end 101 and the third end 201 are arranged at intervals by a fracture structure 4, and the second end 102 and the fourth end 202 are grounded respectively.

[0066] A feeding point 11 is provided on the frame branch 1; the feeding point 11 is located between the first end 101 and the second end 102, the distance between the feeding point 11 and the first end 101 is a, the distance between the feeding point 11 and the second end 102 is b, and the distance between the third end 201 and the fourth end 202 (i.e., the length of the parasitic branch 2) is c, wherein a≥b≥c.

[0067] The antenna structure of this embodiment includes a frame branch 1 and a parasitic branch 2, with a fracture structure 4 between the frame branch 1 and the parasitic branch 2, a feeding point 11 is located on the frame branch 1, and the distance from the feeding point 11 to the first end 101 of the frame branch 1 is greater than or equal to the distance from the feeding point 11 to the second end 102 of the frame branch 1, and the distance from the feeding point 11 to the second end 102 of the frame branch 1 is greater than or equal to the distance between the two ends of the parasitic branch 2. By utilizing the mutual cooperation between the frame branch 1 and the parasitic branch 2, it is possible to stimulate a working mode covering the MHB+N78 frequency band when the positions of the feeding point 11 and the fracture structure 4 are relatively fixed, so that the MHB+N78 antenna can be arranged in the key 6 area, and the better holding environment of the key 6 area is utilized to reduce the loss of antenna performance.

[0068] In some possible implementations, a button assembly 6 is provided on the frame branch 1 , button 6 contacts are provided at both ends of the button assembly 6 , and the feeding point 11 is located between the upper and lower button contacts.

[0069] In some possible implementations, the functions corresponding to the button assembly 6 include but are not limited to a volume up button, a volume down button, a one-button mute button, and a display screen on / off button.

[0070] The display on / off button can also be used to shut down and restart electronic devices.

[0071] The key assembly 6 is connected to a main circuit board of the electronic device through a corresponding flexible printed circuit board (FPC), and the main circuit board is, for example, a printed circuit board (PCB).

[0072] For the sake of distinction, in this embodiment, the printed circuit board can be referred to as the main circuit board, and the flexible circuit board can be referred to as the sub-circuit board. By pressing the key assembly 6, the sub-circuit board generates a control instruction and transmits the control instruction to the main circuit board of the electronic device.

[0073] Since the button assembly 6 is arranged along the side of the electronic device, in order to adapt to the internal component arrangement of the side area and to avoid increasing the size of the side frame as much as possible, the button assembly 6 is adaptively designed according to the arrangement of the components in the side area of ​​the electronic device, and is designed as a strip structure extending along the side. The strip design is conducive to adapting to complex arrangement directions and occupies less space.

[0074] For example, see Figure 3As shown, the button assembly 6 includes a volume button 61 and a power button 62, wherein the volume button 61 is located on the frame branch 1, and the upper and lower ends of the volume button 61 are respectively provided with button contacts for increasing the volume and decreasing the volume, and the feed point 11 is located between the upper and lower button contacts. The power button 62 is located below the volume button 61, and can be located on the frame branch 1, or outside the frame branch 1.

[0075] In some other possible implementations, the frame branch 1 and the parasitic branch 2 are integrally formed on the middle frame structure of the electronic device. Optionally, the middle frame structure includes an outer frame portion and a middle plate portion, the outer frame portion is arranged around the edge of the middle plate portion, and a groove is provided on the inner side of the outer frame portion so that a part of the outer frame portion is separated from the middle plate portion, and then the fracture structure 4 is processed, and this part of the outer frame portion separated from the middle plate portion forms a frame branch 1 and a parasitic branch 2 in this embodiment, one end of which is suspended (for example, the first end 101 and the third end 201), and the other end is still connected to the frame branch 1 and the parasitic branch 2 on the middle plate structure. The ends of the frame branch 1 and the parasitic branch 2 that are not separated from the middle frame structure can just serve as the grounding ends of the frame branch 1 and the parasitic branch 2 (for example, the second end 102 and the fourth end 202).

[0076] Alternatively, the frame branches 1 and the parasitic branches 2 are not integrally formed with the middle frame structure, that is, the frame branches 1 and the parasitic branches 2 are completely suspended on one side of the middle frame structure and are insulated and connected to the middle frame structure through assembly, plastic coating, etc. In this case, the grounding of the frame branches 1 and the parasitic branches 2 can be achieved through a grounding circuit and a conductive spring.

[0077] In some possible implementations, the feeding point 11 is directly or indirectly connected to the main circuit board of the terminal device, and can be used to convert the operation of pressing these button components 63 into electrical signals or other required forms of data signals according to a certain rule, and then transmit them to the main circuit board of the terminal device through its own internal wiring, thereby meeting the requirements of recognition, generation, transmission, processing, storage, display, recording and control of relevant user operation instructions.

[0078] Exemplarily, the main circuit board can be regarded as the mainboard of the terminal device, which includes a baseband part, a radio frequency component and other parts. The baseband part includes a baseband chip and a power management chip, etc. The radio frequency component includes a radio frequency processor and a radio frequency power amplifier module, etc., which are responsible for transmitting and receiving signals. Other parts include a CPU, memory and various controllers, etc., as well as interfaces for components such as microphones, earpieces, speakers, cameras, and display screens.

[0079] In the radio frequency component, the main circuit board is provided with a feeding point 11 for realizing signal reception and transmission. The feeding point 11 has an antenna spring. The feeding point 11 is electrically connected to the feeding end 22 of the parasitic branch 2 through the antenna spring.

[0080] In some embodiments, the distance a between the feeding point 11 and the first end 101 ranges from 15 mm to 20 mm; the distance b between the feeding point 11 and the second end 102 ranges from 10 mm to 15 mm; the distance c between the third end 201 and the fourth end 202 ranges from 5 mm to 10 mm.

[0081] Through the above parameter settings, the border branch 1 and the parasitic branch 2 can cooperate with each other to stimulate a working mode covering the MHB+N78 frequency band.

[0082] In some possible implementations, the distance a between the feeding point 11 and the first end 101 may be, for example, 15 mm, 15.5 mm, 16 mm, 16.5 mm, 17 mm, 17.5 mm, 18 mm, 18.5 mm, 19 mm, 19.5 mm, 20 mm, etc.

[0083] In some other possible implementations, the distance b between the feeding point 11 and the second end 102 may be, for example, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm, 13 mm, 13.5 mm, 14 mm, 14.5 mm, 15 mm, etc.

[0084] In some other possible implementations, the distance c between the third end 201 and the fourth end 202 (i.e., the length of the parasitic branch 2) is, for example, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc.

[0085] In some embodiments, the working mode of the antenna structure includes a first working mode, a second working mode and a third working mode; the first working mode is a mixed mode of a loop mode from the feeding point 11 to the fracture structure 4 and a 3 / 4 wavelength mode of the antenna structure; the second working mode is a monopole mode from the feeding point 11 to the first end 101; the third working mode is a 3 / 4 wavelength mode of the antenna structure.

[0086] The antenna structure in this embodiment, based on the size setting of the frame branch 1 and the parasitic branch 2, cooperates with the above-mentioned three different working modes, and can stimulate resonance of multiple frequencies, including but not limited to B3 (1800MHz), B1 (2100MHz), B40 (2.3GHz), B7 (2.6GHz), N78 (3.5GHz), etc.

[0087] refer to Figure 4 , 5 As shown, Figure 4The return loss effect diagram of the antenna structure is shown. It can be seen from the figure that the values ​​of 1-5 frequency points corresponding to the S11 curve corresponding to the five frequency bands B3, B1, B40, B7, and N78 are all lower than -5dB, indicating that the antenna structure of the present application can achieve coverage of the above five frequency bands. Figure 5 A working efficiency effect diagram of the antenna structure is shown. It can be seen from the figure that the values ​​of 1-5 frequency points corresponding to the efficiency curves of the five frequency bands B3, B1, B40, B7, and N78 all reach -5dB, indicating that the antenna structure of the present application can achieve coverage of the above five frequency bands.

[0088] In some embodiments, when the antenna structure is in the first operating mode, the antenna structure can cover the N78 frequency band.

[0089] This embodiment utilizes a mixed mode (i.e., the first working mode) of the loop mode from the feeding point 11 of the antenna structure to the fracture structure 4 and the 3 / 4 wavelength mode of the antenna structure (including the frame branch 1, the parasitic branch 2 and the fracture structure 4) to achieve coverage of the N78 frequency band.

[0090] refer to Figure 6 , 7 As shown, Figure 6 The figure shows the current distribution of the loop mode from the feeding point 11 to the fracture structure 4 of the antenna structure at 3.5 GHz in the first working mode. It can be seen from the figure that the current is mainly distributed between the feeding point 11 and the fracture structure 4. Figure 7 The figure shows the current distribution of the antenna structure in the 3 / 4 wavelength mode of the antenna structure in the first working mode at 3.5 GHz. It can be seen from the figure that the current is mainly distributed from the feeding point 11 to the fracture structure 4 and the parasitic branch 2, which can meet the working requirements of the 3.5 GHz (ie N78) frequency band.

[0091] In some embodiments, when the antenna structure is in the second operating mode, the antenna structure can cover the B1 frequency band and the B3 frequency band.

[0092] This embodiment utilizes the monopole mode (ie, the second working mode) from the feeding point 11 of the antenna structure to the first end 101 of the frame branch 1 to achieve coverage of the B1 frequency band and the B3 frequency band.

[0093] refer to Figure 8 As shown, Figure 8 The current distribution of the antenna structure at 1.7 GHz and the second working mode is shown. It can be seen from the figure that the current is mainly distributed on the entire frame branch 1, which can meet the working requirements of the 1.7 GHz (ie B1, B3) frequency band.

[0094] In some embodiments, when the antenna structure is in the third operating mode, the antenna structure can cover the B7 frequency band and the B40 frequency band.

[0095] This embodiment utilizes the overall 3 / 4 wavelength mode (ie, the third working mode) of the antenna structure (including the frame branch 1, the parasitic branch 2, and the fracture structure 4) to achieve coverage of the B7 band and the B40 band.

[0096] refer to Fig. 9 As shown, Fig. 9 The current distribution of the antenna structure at 2.5 GHz and the third working mode is shown. It can be seen from the figure that the current is mainly distributed from the feeding point 11 to the fracture structure 4 and the parasitic branch 2, which can meet the working requirements of the 2.5 GHz (ie B7, B40) frequency band.

[0097] Combination Figure 2 As shown, in some embodiments, the antenna structure includes a circuit module 3, an input end 301 of the circuit module 3 is used to connect to the radio frequency circuit 5, and an output end 302 of the circuit module 3 is electrically connected to the feeding point 11. The circuit module 3 can be used to achieve different matching types, introduce a new working mode for the antenna structure, and achieve the frequency coverage of MHB+N78.

[0098] Combination Figure 2 As shown, in some embodiments, the circuit module 3 includes a first capacitor 31 , a second capacitor 32 , a third capacitor 33 , a fourth capacitor 34 , a first inductor 35 , a second inductor 36 , a third inductor 37 and a switch unit 38 .

[0099] The switch unit 38 includes a first terminal 381 , a second terminal 382 , a third terminal 383 , a fourth terminal 384 , and a common terminal 385 .

[0100] One end of the first capacitor 31 is electrically connected to the input terminal 301, and the other end of the first capacitor 31 is electrically connected to one end of the first inductor 35 and the common terminal 385 respectively, the other end of the first inductor 35 is electrically connected to the output terminal 302 and one end of the second inductor 36, and the other end of the second inductor 36 is electrically connected to the first terminal 381; one end of the second capacitor 32 is electrically connected to the input terminal 301, and the other end of the second capacitor 32 is grounded.

[0101] The second terminal 382 is grounded through the fourth capacitor 34 , the third terminal 383 is grounded through the third capacitor 33 , the fourth terminal 384 is electrically connected to one end of the third inductor 37 , and the other end of the third inductor 37 is electrically connected to the output terminal 302 .

[0102] Through the above arrangement, the circuit module 3 can realize different matching types, introduce a new working mode for the antenna structure, and realize the frequency coverage of MHB+N78.

[0103] Combination Figure 2 As shown, in some embodiments, the switch unit 38 is completely disconnected, and when the antenna structure works in the first working mode, the antenna structure covers the N78 frequency band; the third terminal 383 and the common terminal 385 are turned on, and when the antenna structure works in the second working mode, the antenna structure covers the B3 frequency band; the first terminal 381 and the third terminal 383 are respectively turned on with the common terminal 385, and when the antenna structure works in the second working mode, the antenna structure covers the B1 frequency band; the second terminal 382 and the fourth terminal 384 are respectively turned on with the common terminal 385, and when the antenna structure works in the third working mode, the antenna structure covers the B40 frequency band; the fourth terminal 384 and the common terminal 385 are turned on, and when the antenna structure works in the third working mode, the antenna structure covers the B7 frequency band.

[0104] The antenna structure of this embodiment utilizes the on and off states of the switch unit 38 in the circuit structure to achieve multi-band coverage without changing the mode, increase the working frequency band of the antenna structure, and realize the frequency coverage of MHB+N78.

[0105] On the other hand, combined Figure 3 As shown, this embodiment provides an electronic device, and the electronic device includes the antenna structure of the present application.

[0106] The electronic device of this embodiment adopts the antenna structure of the present application and has all the beneficial technical effects of all the embodiments herein.

[0107] In some possible implementations, the terminal device may include a radio frequency (RF) circuit 5 , and the RF circuit 5 is electrically connected to the antenna structure through a circuit module 3 .

[0108] The radio frequency circuit 5 can be used for receiving and sending signals during the process of sending and receiving information or making calls. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors for processing; in addition, the data related to the uplink is sent to the base station. In addition, the radio frequency circuit 5 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobilecommunication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

[0109] In some other possible implementations, the electronic device also includes a rear camera module 7 and a battery module 8, wherein the rear camera module 7 is located on the inner side of the upper end of the antenna structure, the battery module 8 is located on the inner side of the lower end of the antenna structure, and the feeding point 11 is located between the rear camera module 7 and the battery module 8.

[0110] It should be pointed out that in the description of this application, it should be explained that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0111] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0112] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0113] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An antenna structure, characterized in that: The antenna structure comprises: a frame branch (1) and a parasitic branch (2); The frame branch (1) comprises a first end (101) and a second end (102), and the parasitic branch (2) comprises a third end (201) and a fourth end (202); the first end (101) and the third end (201) are arranged at intervals via a fracture structure (4), and the second end (102) and the fourth end (202) are grounded respectively; A feeding point (11) is provided on the frame branch (1); The feeding point (11) is located between the first end (101) and the second end (102), the distance between the feeding point (11) and the first end (101) is a, the distance between the feeding point (11) and the second end (102) is b, and the distance between the third end (201) and the fourth end (202) is c, wherein a≥b≥c.

2. The antenna structure according to claim 1, characterized in that: The value range of a is 15mm-20mm; the value range of b is 10mm-15mm; the value range of c is 5mm-10mm.

3. The antenna structure according to claim 1 or 2, characterized in that: The working modes of the antenna structure include a first working mode, a second working mode and a third working mode; The first working mode is a mixed mode of a loop mode from the feeding point (11) to the slot structure (4) and a 3 / 4 wavelength mode of the antenna structure; the second working mode is a monopole mode from the feeding point (11) to the first end (101); and the third working mode is a 3 / 4 wavelength mode of the antenna structure.

4. The antenna structure according to claim 3, characterized in that: When the antenna structure is in the first working mode, the antenna structure can cover the N78 frequency band.

5. The antenna structure according to claim 3, characterized in that: When the antenna structure is in the second working mode, the antenna structure can cover the B1 frequency band and the B3 frequency band.

6. The antenna structure according to claim 3, characterized in that: When the antenna structure is in the third working mode, the antenna structure can cover the B7 frequency band and the B40 frequency band.

7. The antenna structure according to claim 3, characterized in that: The antenna structure comprises a circuit module (3), an input end (301) of the circuit module (3) is used to connect to a radio frequency circuit (5), and an output end (302) of the circuit module (3) is electrically connected to the feeding point (11).

8. The antenna structure according to claim 7, characterized in that: The circuit module comprises a first capacitor (31), a second capacitor (32), a third capacitor (33), a fourth capacitor (34), a first inductor (35), a second inductor (36), a third inductor (37) and a switch unit (38); The switch unit (38) includes a first terminal (381), a second terminal (382), a third terminal (383), a fourth terminal (384) and a common terminal (385); One end of the first capacitor (31) is electrically connected to the input end (301), the other end of the first capacitor (31) is electrically connected to one end of the first inductor (35) and the common terminal (385) respectively, the other end of the first inductor (35) is electrically connected to the output end (302) and one end of the second inductor (36), and the other end of the second inductor (36) is electrically connected to the first terminal (381); one end of the second capacitor (32) is electrically connected to the input end (301), and the other end of the second capacitor (32) is grounded; The second terminal (382) is grounded via the fourth capacitor (34), the third terminal (383) is grounded via the third capacitor (33), the fourth terminal (384) is electrically connected to one end of the third inductor (37), and the other end of the third inductor (37) is electrically connected to the output terminal (302).

9. The antenna structure according to claim 8, characterized in that: When the switch unit (38) is completely disconnected and the antenna structure operates in the first operating mode, the antenna structure covers the N78 frequency band; The third terminal (383) and the common terminal (385) are connected, and when the antenna structure works in the second working mode, the antenna structure covers the B3 frequency band; The first terminal (381) and the third terminal (383) are respectively connected to the common terminal (385), and when the antenna structure works in the second working mode, the antenna structure covers the B1 frequency band; The second terminal (382) and the fourth terminal (384) are respectively connected to the common terminal (385), and when the antenna structure works in the third working mode, the antenna structure covers the B40 frequency band; The fourth terminal (384) and the common terminal (385) are connected, and when the antenna structure operates in the third operating mode, the antenna structure covers the B7 frequency band.

10. An electronic device, characterized in that: The electronic device comprises the antenna structure according to any one of claims 1 to 9.

Images