Antenna structure and electronic equipment

Abstract

An antenna structure includes: a first antenna for transmitting and receiving a signal; the second antenna is used for transmitting and receiving signals; the first isolation element is arranged between the first antenna and the second antenna, and the first isolation element comprises a first part which is bent and forms a bent area, and one end of the first part is suspended; the second part is strip-shaped, and one end of the second part is vertically connected to the other end of the first part; the third part is in a bending shape and is half surrounded in the bending area of the first part, one end of the third part is vertically connected to the other end of the second part, the other end of the third part is electrically connected to the second part through a first inductor, and the frequency of isolation between the first antenna and the second antenna is adjusted by adjusting the inductance value of the first inductor. The isolation problem can be improved by changing the inductance value, and the isolation characteristic can be adjusted only by changing the inductance value if the isolation is offset in different environments, so that the performance of the antenna is ensured.

Description

Technical Field

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

[0002] With the advancement of technology, the functions of electronic devices are becoming more and more powerful to meet the needs of users, and the requirements for antennas are also getting higher and higher. In order to meet the multi-functionality of electronic devices and ensure the performance of electronic devices, multiple antennas have become a development trend, but there will be interference between antennas, and the isolation requirements between antennas are different in different environments. Summary of the invention

[0003] In view of this, it is necessary to provide an antenna structure that meets the bandwidth requirements while meeting the high isolation requirements.

[0004] An embodiment of the present invention provides an antenna structure, including:

[0005] A first antenna, used for transmitting and receiving signals;

[0006] A second antenna, for transmitting and receiving signals;

[0007] A first isolation element is disposed between the first antenna and the second antenna, and the first isolation element includes:

[0008] The first part is in a bent shape, forming a bent area, with one end hanging in the air;

[0009] The second part is in the shape of a long strip, one end of which is vertically connected to the other end of the first part;

[0010] The third part is bent and half-enclosed in the bending area of ​​the first part. One end is vertically connected to the other end of the second part, and the other end is electrically connected to the second part through a first inductor. The frequency of the isolation between the first antenna and the second antenna is adjusted by adjusting the inductance value of the first inductor.

[0011] Preferably, when the inductance value of the first inductor increases, the frequency of the isolation becomes lower; when the inductance value of the first inductor decreases, the frequency of the isolation becomes higher.

[0012] Preferably, there is a first gap between the first portion and the third portion, and the frequency of the isolation between the first antenna and the second antenna is adjusted by adjusting the length and width of the first gap.

[0013] Preferably, the first part includes a first microstrip line, a second microstrip line, a third microstrip line and a fourth microstrip line, one end of the first microstrip line is suspended, and the other end is vertically electrically connected to one end of the second microstrip line, the other end of the second microstrip line is vertically electrically connected to one end of the third microstrip line, and the other end of the third microstrip line is electrically connected to one end of the fourth microstrip line;

[0014] The second portion includes a fifth microstrip line, one end of the fifth microstrip line being vertically and electrically connected to the other end of the fourth microstrip line;

[0015] The third part includes a sixth microstrip line, a seventh microstrip line, an eighth microstrip line and a ninth microstrip line, one end of the sixth microstrip line is vertically electrically connected to the other end of the fifth microstrip line, the other end of the sixth microstrip line is vertically electrically connected to one end of the seventh microstrip line, the other end of the seventh microstrip line is vertically electrically connected to one end of the eighth microstrip line, and the other end is electrically connected to the fifth microstrip line through the first inductor, and the ninth microstrip line is parallel to the seventh microstrip line.

[0016] Preferably, the sixth microstrip line of the third portion is parallel to the second microstrip line of the first portion, and the first gap exists;

[0017] When the length of the first gap becomes longer, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the length of the first gap becomes shorter, the coupling amount becomes lower and the frequency of the isolation becomes higher;

[0018] When the width of the first gap becomes smaller, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the width of the first gap becomes larger, the coupling amount becomes lower and the frequency of the isolation becomes higher.

[0019] Preferably, it also includes:

[0020] A third antenna, used for transmitting and receiving signals;

[0021] A second isolation element is disposed between the second antenna and the third antenna, and the second isolation element includes:

[0022] The fifth part is in a bent shape, forming a bent area, with one end hanging in the air;

[0023] The sixth portion is rectangular, half-enclosed in the bending area of ​​the fifth portion, and one side is vertically connected to the other end of the fifth portion;

[0024] The seventh part is bent and half-enclosed in the bending area of ​​the fifth part. One end is vertically connected to the other side of the sixth part, and the other end is electrically connected to the sixth part through a second inductor. The frequency of the isolation between the second antenna and the third antenna is adjusted by adjusting the inductance value of the second inductor.

[0025] Preferably, there is a second gap between the fifth portion and the seventh portion, and the frequency of the isolation between the second antenna and the third antenna is adjusted by adjusting the length and width of the second gap.

[0026] Preferably, the fifth portion includes a tenth microstrip line, an eleventh microstrip line, a twelfth microstrip line, a thirteenth microstrip line and a fourteenth microstrip line, one end of the tenth microstrip line is suspended, and the other end is vertically and electrically connected to one end of the eleventh microstrip line, the other end of the eleventh microstrip line is vertically and electrically connected to one end of the twelfth microstrip line, the other end of the twelfth microstrip line is electrically connected to one end of the thirteenth microstrip line, the other end of the thirteenth microstrip line is electrically connected to one end of the fourteenth microstrip line, and the other end of the fourteenth microstrip line is electrically connected to the first side of the sixth portion;

[0027] The seventh part includes a fifteenth microstrip line, a sixteenth microstrip line, a seventeenth microstrip line and an eighteenth microstrip line, the fifteenth microstrip line is vertically electrically connected to the second side of the sixth part, the other end of the fifteenth microstrip line is vertically electrically connected to one end of the sixteenth microstrip line, the other end of the sixteenth microstrip line is vertically electrically connected to one end of the seventeenth microstrip line, and the other end is electrically connected to the sixth part through the second inductor, and the eighteenth microstrip line is parallel to the sixth part.

[0028] Preferably, the fifteenth microstrip line of the seventh portion is parallel to the second microstrip line of the first portion, and the second gap exists;

[0029] When the length of the second gap becomes longer, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the length of the second gap becomes shorter, the coupling amount becomes lower and the frequency of the isolation becomes higher;

[0030] When the width of the second gap becomes smaller, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the width of the second gap becomes larger, the coupling amount becomes lower and the frequency of the isolation becomes higher.

[0031] An embodiment of the present invention further provides an electronic device, comprising any of the antenna structures described above.

[0032] Compared with the prior art, the antenna structure provided by the embodiment of the present invention sets an isolation element between the antennas and sets an inductor on the isolation element. When the inductance value increases, the frequency of the isolation becomes lower; when the inductance value decreases, the frequency of the isolation becomes higher, so that the frequency of the isolation between the antennas can be adjusted by adjusting the inductance value. The isolation problem can be improved by changing the inductance value. In different environments, if the isolation is biased, the isolation characteristics can be adjusted by simply changing the inductance value to ensure the antenna performance, thereby improving the competitiveness of electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention;

[0034] Figure 2 A schematic structural diagram of an antenna structure according to an embodiment of the present invention;

[0035] Figure 3 A schematic diagram of the isolation curve corresponding to different gap widths of the antenna structure of the present invention;

[0036] Figure 4 A schematic diagram of the isolation curve corresponding to different inductance values ​​of the antenna structure of the present invention;

[0037] Figure 5 It is a structural schematic diagram of another embodiment of the antenna structure of the present invention.

[0038] Main component symbols

[0039] 1- Electronic equipment

[0040] 101-RF Unit

[0041] 102-WiFi module

[0042] 103-Audio output unit

[0043] 104-A / V Audio / Video Input Unit

[0044] 105-Sensor

[0045] 106-Display unit

[0046] 107-User input unit

[0047] 108-Interface Unit

[0048] 109-Memory

[0049] 110-Processor

[0050] 111-Power Supply

[0051] 202-Audio Control Unit

[0052] 203-Audio call unit

[0053] 1041-Graphics Processor

[0054] 1042-Microphone

[0055] 1061-Adjust the display panel

[0056] 1071-Touch Panel

[0057] 1072-Other input devices

[0058] 3- Antenna structure

[0059] 4-Substrate

[0060] 30-First Antenna

[0061] 31-Second Antenna

[0062] 32-First isolation element

[0063] 33-Third antenna

[0064] 34-Second isolation element

[0065] GND-ground

[0066] 320~323-Part 1~Part 4

[0067] L1-First inductor

[0068] L2-second inductor

[0069] A1~A4-First microstrip line~Fourth microstrip line

[0070] B1-Fifth microstrip line

[0071] C1~C4-sixth microstrip line~ninth microstrip line

[0072] D1~D6-first radiating microstrip line~sixth radiating microstrip line

[0073] 301-First hollowing area

[0074] 302-Second hollowing area

[0075] E1~E4-the seventh radiating microstrip line~the tenth radiating microstrip line

[0076] 340~343-Part 5~Part 8

[0077] F1~F5-10th microstrip line~14th microstrip line

[0078] G1~G4-15th microstrip line~18th microstrip line

[0079] H1~H2-19th microstrip line~20th microstrip line

[0080] I1~I7-Eleventh radiating microstrip line~Seventeenth radiating microstrip line

[0081] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0082] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific implementation methods and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0083] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0084] See also Figure 1 , which is a schematic diagram of an optional hardware structure of each embodiment of the electronic device of the present invention.

[0085] The electronic device 1 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (audio / video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, a power supply 111, an audio control unit 202, and an audio call unit 203. Those skilled in the art will appreciate that Figure 1 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0086] Combine the following Figure 1 A detailed introduction to the various components of electronic equipment:

[0087] The radio frequency unit 101 can be used for receiving and sending signals during information transmission or calls. Specifically, after receiving the downlink information of the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 101 includes but is not limited to an antenna structure, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication.

[0088] WiFi is a short-range wireless transmission technology. Electronic devices can help users send and receive emails, browse web pages, and access streaming media through WiFi module 102. It provides users with wireless broadband Internet access. Figure 2 The WiFi module 102 is shown, but it is understandable that it is not an essential component of the electronic device and can be omitted as needed without changing the essence of the invention.

[0089] The audio output unit 103 can convert the audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the electronic device 1 is in a call signal receiving mode, a talk mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. Moreover, the audio output unit 103 can also provide audio output related to a specific function performed by the electronic device 1 (for example, a call signal receiving sound, a message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0090] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 106. The image frame processed by the graphics processor 1041 can be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a telephone call mode, a recording mode, a voice recognition mode, and other operating modes, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0091] The electronic device 1 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the electronic device 1 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can also be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0092] In this embodiment, the electronic device 1 includes a display unit 106 .

[0093] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the electronic device. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 1071 or near the touch panel 1071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Specifically, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0094] Furthermore, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of the touch event. Then, the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Figure 2 In the figure, the touch panel 1071 and the display panel 1061 are two independent components to realize the input and output functions of the electronic device. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the electronic device, which is not limited here.

[0095] The interface unit 108 serves as an interface through which at least one external device can be connected to the electronic device 1. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic device 1 or may be used to transmit data between the electronic device 1 and an external device.

[0096] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0097] The processor 110 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. It executes various functions of the electronic device and processes data by running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, so as to monitor the electronic device as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0098] The electronic device 1 further includes a power supply 111 for supplying power to various components. The power supply 111 may be logically connected to the processor 110 via a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0099] although Figure 1Not shown, the electronic device 1 may further include a Bluetooth module to enable data transmission between the electronic device 1 and other external electronic devices.

[0100] See also Figure 2 As shown, Figure 2 FIG. 1 is a schematic diagram of an antenna structure 3 according to an embodiment of the present invention. In this embodiment, the antenna structure 3 can be applied to the electronic device 1 described above. Figure 2 As shown, the antenna structure 3 is arranged on the substrate 4, including a first antenna 30, a second antenna 31, a first isolation element 32 and a grounding portion 33. The first antenna 30 can be a dual-band WIFI antenna, and the second antenna 31 can be a single-band Bluetooth antenna. In this embodiment, the first antenna 30 is arranged on one side of the substrate 4 for transmitting and receiving signals. The second antenna 31 is arranged on the other side of the substrate 4 for transmitting and receiving signals. The first isolation element 32 is arranged between the first antenna 30 and the second antenna 31, and is used to improve the isolation between the first antenna 30 and the second antenna 31. The first isolation element 32 includes a first portion 320, a second portion 321, a third portion 322 and a fourth portion 323. The first part 320 is bent, forming a bending area, and one end is suspended; the second part 321 is long and strip-shaped, and one end is vertically connected to the other end of the first part; the third part 322 is bent, half surrounded in the bending area of ​​the first part 320, and one end is vertically connected to the other end of the second part 321. The other end of the third part 322 is electrically connected to the second part 321 through the first inductor L1. The frequency of the isolation between the first antenna 30 and the second antenna 31 is adjusted by adjusting the inductance value of the first inductor L1. Specifically, when the inductance value of the first inductor L1 increases, the frequency of the isolation becomes lower; when the inductance value of the first inductor L1 decreases, the frequency of the isolation becomes higher. The first isolation element 32 also includes a fourth part 323, which is rectangular.

[0101] Combined with Figure 3 , attached Figure 3 Schematic diagram of the isolation curve corresponding to different inductance values ​​of the present invention. Figure 3 As shown, the isolation between the first antenna 30 and the second antenna 31 has a frequency deviation with different inductance values. When the inductance values ​​are 1nH, 2nH and 3nH respectively, as the inductance value increases, the frequency of the isolation decreases accordingly. The isolation problem can be improved by changing the inductance value. In different environments, if the isolation is frequency-biased, the isolation frequency can be adjusted by simply changing the inductance to ensure antenna performance, thereby improving the competitiveness of electronic equipment.

[0102] There is a first gap between the first part 320 and the third part 322, and the frequency of the isolation between the first antenna 30 and the second antenna 31 is adjusted by adjusting the length and width of the first gap. When the length or width of the first gap changes, its coupling amount changes, and the frequency of the isolation changes with the change of the coupling amount. When the length of the first gap becomes longer, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the length of the first gap becomes shorter, the coupling amount becomes lower and the frequency of the isolation becomes higher. When the width of the first gap becomes smaller, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the width of the first gap becomes larger, the coupling amount becomes lower and the frequency of the isolation becomes higher.

[0103] Combined with Figure 4 , attached Figure 4 Schematic diagram of the isolation curve corresponding to the gap width of the present invention. Figure 4 As shown, the isolation between the first antenna 30 and the second antenna 31 varies with the coupling amount. When the width of the first slot is 0.2 mm, 0.4 mm, 0.6 mm and 0.8 mm, as the width of the first slot increases, the coupling amount decreases and the frequency of the isolation increases.

[0104] In this embodiment, the first portion 320 includes a first microstrip line A1, a second microstrip line A2, a third microstrip line A3 and a fourth microstrip line A4. One end of the first microstrip line A1 is suspended, and the other end is vertically and electrically connected to one end of the second microstrip line A2, the other end of the second microstrip line A2 is vertically and electrically connected to one end of the third microstrip line A3, and the other end of the third microstrip line A3 is electrically connected to one end of the fourth microstrip line A4. The third microstrip line A3 is also parallel to the fourth portion 323.

[0105] The second portion 321 includes a fifth microstrip line B1. One end of the fifth microstrip line B1 is vertically and electrically connected to the other end of the fourth microstrip line A4.

[0106] The third portion 322 includes a sixth microstrip line C1, a seventh microstrip line C2, an eighth microstrip line C3, and a ninth microstrip line C4. One end of the sixth microstrip line C1 is vertically electrically connected to the other end of the fifth microstrip line B1, the other end of the sixth microstrip line C1 is vertically electrically connected to one end of the seventh microstrip line C2, the other end of the seventh microstrip line C2 is vertically electrically connected to one end of the eighth microstrip line C3, and the other end is electrically connected to the fifth microstrip line B1 through the first inductor L1, and the ninth microstrip line C4 is parallel to the seventh microstrip line C2.

[0107] In this embodiment, the first antenna 30 includes a first radiating microstrip line D1, a second radiating microstrip line D2, a third radiating microstrip line D3, a fourth radiating microstrip line D4, a fifth radiating microstrip line D5 and a sixth radiating microstrip line D6. The first radiating microstrip line D1 is in the shape of an elongated strip, and is provided with a first hollowing area 301, a second hollowing area 302 and a third hollowing area 303. The second radiating microstrip line D2 is in the shape of an L, one end of which is vertically electrically connected to one end of the first radiating microstrip line D1, and the other end is suspended. The third radiating microstrip line D3 is in a bent shape, one end of which is vertically electrically connected to the other end of the first radiating microstrip line D1. The fourth radiating microstrip line D4 is in a bent shape, with both ends suspended, and the middle part is vertically electrically connected to the third radiating microstrip line D3. The fifth radiating microstrip line D5 is in the shape of an elongated strip, parallel to the other end of the second radiating microstrip line D2. The sixth radiating microstrip line D6 is in a rectangular shape, parallel to one end of the fourth radiating microstrip line D4.

[0108] In this embodiment, the second antenna 31 includes a seventh radiating microstrip line E1, an eighth radiating microstrip line E2, a ninth radiating microstrip line E3 and a tenth radiating microstrip line E4. The seventh radiating microstrip line E1 is in an inverted L shape, with one end suspended. The eighth radiating microstrip line E2 is in a bent shape, with one end vertically electrically connected to the other end of the seventh radiating microstrip line E1. The ninth radiating microstrip line E3 is in a П shape, with one end vertically electrically connected to the other end of the eighth radiating microstrip line E2, and the other two ends suspended. The tenth radiating microstrip line E4 is rectangular and is located below the seventh radiating microstrip line E1. It can be understood that the structures of the first antenna 30 and the second antenna 31 can be adjusted according to the antenna layout space. The above is only an example, but it is not limited to this.

[0109] See also Figure 5 As shown, Figure 5 Schematic diagram of the structure of another embodiment of the antenna structure 3 of the present invention. The antenna structure 3 in this embodiment is different from the antenna structure in the above embodiment in that it also includes a third antenna 33 and a second isolation element 34. The third antenna 33 is arranged on the other side of the substrate 4 for transmitting and receiving signals. The second isolation element 34 is arranged between the second antenna 31 and the third antenna 33 for improving the isolation between the first antenna 30 and the second antenna 31.

[0110] In this embodiment, the second isolation element 34 includes a fifth portion 340, a sixth portion 341, a seventh portion 342 and an eighth portion 343. The fifth portion 340 is bent to form a bent region, with one end suspended. The sixth portion 341 is rectangular, half-enclosed in the bent region of the fifth portion 340, and one side is vertically connected to the other end of the fifth portion 340. The seventh portion 342 is bent, half-enclosed in the bent region of the fifth portion 340, one end is vertically connected to the other side of the sixth portion 341, and the other end is electrically connected to the sixth portion 341 through the second inductor L2. The eighth portion 343 is rectangular. The frequency of the isolation between the second antenna 31 and the third antenna 33 is adjusted by adjusting the inductance value of the second inductor L2. When the inductance value of the second inductor L2 increases, the frequency of the isolation becomes lower; when the inductance value of the second inductor L2 decreases, the frequency of the isolation becomes higher. The isolation problem can be improved by changing the inductance value. In different environments, if the isolation is frequency-biased, the isolation characteristics can be adjusted by simply changing the inductance value to ensure antenna performance, thereby improving the competitiveness of electronic equipment.

[0111] There is a second gap between the fifth part 340 and the seventh part 342, and the frequency of the isolation between the second antenna 31 and the third antenna 33 is adjusted by adjusting the length and width of the second gap. When the length or width of the second gap changes, its coupling amount changes, and the frequency of the isolation changes with the change of the coupling amount. When the length of the second gap becomes longer, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the length of the second gap becomes shorter, the coupling amount becomes lower and the frequency of the isolation becomes higher. When the width of the second gap becomes smaller, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the width of the second gap becomes larger, the coupling amount becomes lower and the frequency of the isolation becomes higher. That is, the isolation between the second antenna 31 and the third antenna 33 has a frequency deviation with the different coupling amounts.

[0112] In this embodiment, the fifth portion 340 includes the tenth microstrip line F1, the eleventh microstrip line F2, the twelfth microstrip line F3, the thirteenth microstrip line F4 and the fourteenth microstrip line F5. One end of the tenth microstrip line F1 is suspended, and the other end is vertically and electrically connected to one end of the eleventh microstrip line F2, and the other end of the eleventh microstrip line F2 is vertically and electrically connected to one end of the twelfth microstrip line F3, and the eleventh microstrip line F2 has a hollowed-out area F22. The other end of the twelfth microstrip line F3 is electrically connected to one end of the thirteenth microstrip line F4, and the other end of the thirteenth microstrip line F4 is electrically connected to one end of the fourteenth microstrip line F5, and the other end of the fourteenth microstrip line F5 is electrically connected to the first side of the sixth portion 341. The twelfth microstrip line F3 is also parallel to the eighth portion 343.

[0113] The seventh portion 342 includes a fifteenth microstrip line G1, a sixteenth microstrip line G2, a seventeenth microstrip line G3 and an eighteenth microstrip line G4. The fifteenth microstrip line G1 is vertically electrically connected to the second side of the sixth portion 341, the other end of the fifteenth microstrip line G1 is vertically electrically connected to one end of the sixteenth microstrip line G2, the other end of the sixteenth microstrip line G2 is vertically electrically connected to one end of the seventeenth microstrip line G3, and the other end is electrically connected to the sixth portion 341 through a second inductor L2, and the eighteenth microstrip line G4 is parallel to the sixth portion 341. The fifteenth microstrip line G1 of the seventh portion 342 is parallel to the eleventh microstrip line F2 of the fifth portion 340, and there is a second gap, and the frequency of the isolation between the second antenna 31 and the third antenna 33 is adjusted by adjusting the length and width of the second gap.

[0114] In this embodiment, the sixth portion 341 includes a nineteenth microstrip line H1 and a twentieth microstrip line H2. The nineteenth microstrip line H1 is rectangular, and the first side of the nineteenth microstrip line H1 is vertically electrically connected to the other end of the fourteenth microstrip line F5, and the second side is vertically electrically connected to the fifteenth microstrip line G1. The twentieth microstrip line H2 is long and parallel to the third side of the nineteenth microstrip line H1.

[0115] In this embodiment, the third antenna 33 includes an eleventh radiating microstrip line I1, a twelfth radiating microstrip line I2, a thirteenth radiating microstrip line I3, a fourteenth radiating microstrip line I4, a fifteenth radiating microstrip line I5, a sixteenth radiating microstrip line I6 and a seventeenth radiating microstrip line I7. The eleventh radiating microstrip line I1 is in an inverted L shape, the twelfth radiating microstrip line I2 is in an inverted L shape, one end of which is vertically electrically connected to one end of the eleventh radiating microstrip line I1, and the other end is suspended. The thirteenth radiating microstrip line I3 is in a long strip shape, and the fourteenth radiating microstrip line I4 is in a The 16th radiating microstrip line I6 is rectangular and is arranged above the 14th radiating microstrip line I4. The 17th radiating microstrip line I7 is rectangular and is arranged above the other end of the 12th radiating microstrip line I2.

[0116] Compared with the prior art, the antenna structure provided by the embodiment of the present invention sets an isolation element between the antennas and sets an inductor on the isolation element. When the inductance value increases, the frequency of the isolation becomes lower; when the inductance value decreases, the frequency of the isolation becomes higher, so that the frequency of the isolation between the antennas can be adjusted by adjusting the inductance value. The isolation problem can be improved by changing the inductance value. In different environments, if the isolation is biased, the isolation characteristics can be adjusted by simply changing the inductance value to ensure the antenna performance, thereby improving the competitiveness of electronic equipment.

[0117] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. An antenna structure, characterized in that: include: A first antenna, used for transmitting and receiving signals; A second antenna, for transmitting and receiving signals; A first isolation element is disposed between the first antenna and the second antenna, and the first isolation element includes: The first part is in a bent shape, forming a bent area, with one end hanging in the air; The second part is in the shape of a long strip, one end of which is vertically connected to the other end of the first part; The third part is bent and half-enclosed in the bending area of ​​the first part. One end is vertically connected to the other end of the second part, and the other end is electrically connected to the second part through a first inductor. The frequency of the isolation between the first antenna and the second antenna is adjusted by adjusting the inductance value of the first inductor.

2. The antenna structure according to claim 1, characterized in that: When the inductance value of the first inductor increases, the frequency of the isolation becomes lower; when the inductance value of the first inductor decreases, the frequency of the isolation becomes higher.

3. The antenna structure according to claim 1, characterized in that: A first gap exists between the first portion and the third portion, and the frequency of the isolation between the first antenna and the second antenna is adjusted by adjusting the length and width of the first gap.

4. The antenna structure according to claim 3, characterized in that: The first part includes a first microstrip line, a second microstrip line, a third microstrip line and a fourth microstrip line, one end of the first microstrip line is suspended, and the other end is vertically electrically connected to one end of the second microstrip line, the other end of the second microstrip line is vertically electrically connected to one end of the third microstrip line, and the other end of the third microstrip line is electrically connected to one end of the fourth microstrip line; The second portion includes a fifth microstrip line, one end of the fifth microstrip line being vertically and electrically connected to the other end of the fourth microstrip line; The third part includes a sixth microstrip line, a seventh microstrip line, an eighth microstrip line and a ninth microstrip line, one end of the sixth microstrip line is vertically electrically connected to the other end of the fifth microstrip line, the other end of the sixth microstrip line is vertically electrically connected to one end of the seventh microstrip line, the other end of the seventh microstrip line is vertically electrically connected to one end of the eighth microstrip line, and the other end is electrically connected to the fifth microstrip line through the first inductor, and the ninth microstrip line is parallel to the seventh microstrip line.

5. The antenna structure according to claim 4, characterized in that: The sixth microstrip line of the third portion is parallel to the second microstrip line of the first portion, and has the first gap; When the length of the first gap becomes longer, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the length of the first gap becomes shorter, the coupling amount becomes lower and the frequency of the isolation becomes higher; When the width of the first gap becomes smaller, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the width of the first gap becomes larger, the coupling amount becomes lower and the frequency of the isolation becomes higher.

6. The antenna structure according to claim 1, characterized in that: Also includes: A third antenna, used for transmitting and receiving signals; A second isolation element is disposed between the second antenna and the third antenna, and the second isolation element includes: The fifth part is in a bent shape, forming a bent area, with one end hanging in the air; The sixth portion is rectangular, half-enclosed in the bending area of ​​the fifth portion, and one side is vertically connected to the other end of the fifth portion; The seventh part is bent and half-enclosed in the bending area of ​​the fifth part. One end is vertically connected to the other side of the sixth part, and the other end is electrically connected to the sixth part through a second inductor. The frequency of the isolation between the second antenna and the third antenna is adjusted by adjusting the inductance value of the second inductor.

7. The antenna structure according to claim 6, characterized in that: A second gap exists between the fifth portion and the seventh portion, and the frequency of the isolation between the second antenna and the third antenna is adjusted by adjusting the length and width of the second gap.

8. The antenna structure according to claim 7, characterized in that: The fifth portion includes a tenth microstrip line, an eleventh microstrip line, a twelfth microstrip line, a thirteenth microstrip line and a fourteenth microstrip line, one end of the tenth microstrip line is suspended, and the other end is vertically and electrically connected to one end of the eleventh microstrip line, the other end of the eleventh microstrip line is vertically and electrically connected to one end of the twelfth microstrip line, the other end of the twelfth microstrip line is electrically connected to one end of the thirteenth microstrip line, the other end of the thirteenth microstrip line is electrically connected to one end of the fourteenth microstrip line, and the other end of the fourteenth microstrip line is electrically connected to the first side of the sixth portion; The seventh part includes a fifteenth microstrip line, a sixteenth microstrip line, a seventeenth microstrip line and an eighteenth microstrip line, the fifteenth microstrip line is vertically electrically connected to the second side of the sixth part, the other end of the fifteenth microstrip line is vertically electrically connected to one end of the sixteenth microstrip line, the other end of the sixteenth microstrip line is vertically electrically connected to one end of the seventeenth microstrip line, and the other end is electrically connected to the sixth part through the second inductor, and the eighteenth microstrip line is parallel to the sixth part.

9. The antenna structure according to claim 8, characterized in that: The fifteenth microstrip line of the seventh portion is parallel to the second microstrip line of the first portion, and has the second gap; When the length of the second gap becomes longer, the coupling amount becomes higher and the frequency of isolation becomes lower; When the length of the second gap becomes shorter, the coupling amount becomes lower and the frequency of isolation becomes higher; When the width of the second gap becomes smaller, the coupling amount becomes higher and the frequency of the isolation becomes lower; when the width of the second gap becomes larger, the coupling amount becomes lower and the frequency of the isolation becomes higher.

10. An electronic device, characterized in that: Comprising the antenna structure as described in any one of claims 1-9.

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