CN219420807U - Antenna tuning module and intelligent terminal - Google Patents

Abstract

The application provides an antenna tuning module and intelligent terminal, be applied to intelligent terminal, intelligent terminal includes mainboard, subplate and connects at least one antenna of mainboard, when intelligent terminal is in the folded condition, at least two main frames of mainboard and at least two vice frames of subplate overlap at least partially, antenna tuning module connects target vice frame or target antenna, target antenna connects target main frame, target vice frame and target main frame overlap at least partially when intelligent terminal is in the folded condition. The antenna tuning module is connected with the target auxiliary frame or the target antenna so as to adjust the physical length of the target auxiliary frame or adjust the frequency band of the target antenna, reduce the influence of the metal frame on one side of the auxiliary plate on the antenna on the main side, enable the target antenna connected with the target main frame to be in a preset frequency band when the intelligent terminal is in a folded state, and improve the radiation capacity and radiation efficiency of the antenna.

Description

Antenna tuning module and intelligent terminal

Technical Field

The application relates to the technical field of antennas, in particular to an antenna tuning module and an intelligent terminal.

Background

With the continuous development of mobile terminals, a mobile terminal in a foldable form is endlessly layered, and a screen of a folder can be divided into a main board and an auxiliary board, and in an unfolded state, the main board and the auxiliary board form a plane, namely a main screen. When in a folding state, the main board and the auxiliary board are overlapped, the main screen is folded inside, and the main board and the auxiliary board are fixed by attracting magnets on two sides of the main board and the auxiliary board respectively.

In the process of designing and implementing the present application, the inventors found that at least the following problems exist: when in a folding state, the metal frame on one side of the main board is overlapped with the metal frame on one side of the auxiliary board, and the antenna on one side of the main board is greatly affected by the metal frame on one side of the auxiliary board, so that the radiation capability of the antenna is affected.

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of Invention

To above-mentioned technical problem, this application provides an antenna tuning module and intelligent terminal, reduces the influence of frame on the subplate to the antenna on the mainboard, improves antenna radiation ability.

The application provides an antenna tuning module which is applied to an intelligent terminal, wherein the intelligent terminal comprises a main board, an auxiliary board and at least one antenna connected to the main board, and when the intelligent terminal is in a folded state, at least two main frames of the main board and at least two auxiliary frames of the auxiliary board are at least partially overlapped;

the antenna tuning module is connected with a target auxiliary frame or a target antenna, the target antenna is connected with a target main frame, and the target auxiliary frame and the target main frame are at least partially overlapped.

Optionally, the antenna tuning module includes a first tuning circuit, where the first tuning circuit is located on the motherboard and connected to the target antenna.

Optionally, the first tuning circuit includes at least one single-pole single-throw switch and at least one first sub-tuning circuit, a first end of the single-pole single-throw switch is grounded, a second end of the single-pole single-throw switch is connected with a first end of the first sub-tuning circuit, and a second end of the first sub-tuning circuit is connected with the target antenna.

Optionally, the antenna tuning module includes a second tuning circuit, where the second tuning circuit is located on the sub-board, a first end of the second tuning circuit is connected to the target sub-frame, and a second end of the second tuning circuit is grounded.

Optionally, the second tuning circuit includes an LC tuning circuit, a first end of the LC tuning circuit is connected to the target sub-frame, and a second end of the LC tuning circuit is grounded.

Optionally, the second tuning circuit includes at least one single pole single throw switch and at least one third tuning circuit, a first end of the single pole single throw switch is grounded, a second end of the single pole single throw switch is connected to a first end of the third tuning circuit, and a second end of the third tuning circuit is connected to the target auxiliary frame.

Optionally, the second end of the second tuning circuit is connected to the ground of the printed circuit board in the intelligent terminal.

The application also provides an intelligent terminal comprising the antenna tuning module.

Optionally, the intelligent terminal further comprises a printed circuit board and a connecting rib position, wherein a first end of the connecting rib position is connected with the target auxiliary frame, and a second end of the connecting rib position is connected with the printed circuit board.

Optionally, the intelligent terminal further includes: and at least one matching circuit, wherein each matching circuit is respectively connected with one antenna.

As described above, the antenna tuning module is applied to the intelligent terminal, the intelligent terminal comprises a main board, an auxiliary board and at least one antenna connected with the main board, when the intelligent terminal is in a folded state, at least two main frames of the main board and at least two auxiliary frames of the auxiliary board are at least partially overlapped, the antenna tuning module is connected with a target auxiliary frame or a target antenna, the target antenna is connected with a target main frame, and when the intelligent terminal is in a folded state, the target auxiliary frame and the target main frame are at least partially overlapped. The antenna tuning module is connected with the target auxiliary frame or the target antenna so as to adjust the physical length of the target auxiliary frame or adjust the frequency band of the target antenna, reduce the influence of the metal frame on one side of the auxiliary plate on the antenna on the main side, enable the target antenna connected with the target main frame to be in a preset frequency band when the intelligent terminal is in a folded state, and improve the radiation capacity and radiation efficiency of the antenna.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic hardware structure of a mobile terminal implementing various embodiments of the present application;

fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application;

fig. 3 is a schematic structural view of an intelligent terminal according to the first embodiment;

fig. 4 is a schematic structural view of an intelligent terminal according to the first embodiment;

fig. 5 is a schematic structural view of an intelligent terminal according to the first embodiment;

fig. 6 is a schematic structural view of an intelligent terminal according to a second embodiment;

fig. 7 is a schematic diagram of a structure of a first tuning circuit shown according to a second embodiment;

fig. 8 is a schematic structural view of an intelligent terminal according to a third embodiment;

Fig. 9 is a schematic structural view of an intelligent terminal according to a fourth embodiment;

fig. 10 is a schematic structural view of an intelligent terminal according to a fourth embodiment.

The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings. Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element, and alternatively, elements having the same name in different embodiments of the present application may have the same meaning or may have different meanings, a particular meaning of which is to be determined by its interpretation in this particular embodiment or further in connection with the context of this particular embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or," "and/or," "including at least one of," and the like, as used herein, may be construed as inclusive, or meaning any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present application, and are not of specific significance per se. Thus, "module," "component," or "unit" may be used in combination.

The intelligent terminal may be implemented in various forms. For example, the smart terminals described in the present application may include mobile terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and stationary terminals such as digital TVs, desktop computers, and the like.

The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.

Referring to fig. 1, which is a schematic hardware structure of a mobile terminal implementing various embodiments of the present application, the mobile terminal 100 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, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The following describes the components of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, 2000, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division duplex long term evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division duplex long term evolution), and 5G, among others.

WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted 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 phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor, optionally, the ambient light sensor may adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. Alternatively, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects the touch azimuth of the user, detects a signal brought by touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. Alternatively, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.

Alternatively, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and the processor 110 then provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. 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 mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, and alternatively, the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal 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, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, the application processor optionally handling mainly an operating system, a user interface, an application program, etc., the modem processor handling mainly wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described herein.

In order to facilitate understanding of the embodiments of the present application, a communication network system on which the mobile terminal of the present application is based will be described below.

Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system provided in the embodiment of the present application, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an e-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.

Alternatively, the UE201 may be the terminal 100 described above, which is not described here again.

The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. Alternatively, the eNodeB2021 may connect with other enodebs 2022 over a backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access for the UE201 to the EPC 203.

EPC203 may include MME (Mobility Management Entity ) 2031, hss (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, pgw (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and so on. Optionally, MME2031 is a control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.

Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present application is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G, and future new network systems (e.g., 6G), etc.

Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are presented.

First embodiment

Referring to fig. 3, fig. 3 is a schematic structural diagram of an intelligent terminal according to a first embodiment, where an antenna tuning module of the embodiment of the present application is applied to the intelligent terminal, including: the intelligent terminal comprises a main board 10, an auxiliary board 20 and at least one antenna connected to the main board 10, wherein when the intelligent terminal is in a folded state, at least two main frames of the main board 10 and at least two auxiliary frames of the auxiliary board 20 are at least partially overlapped; the antenna tuning module is connected with the target auxiliary frame or the target antenna, the target antenna is connected with the target main frame, and the target auxiliary frame and the target main frame are at least partially overlapped.

Optionally, the intelligent terminal includes a main board 10, an auxiliary board 20 and a rotating shaft 30, the main board 10 includes four sides, three sides are surrounded by a main frame, a fourth side of the main board 10 is connected with the rotating shaft 30, the auxiliary board 20 includes four sides, three sides of the auxiliary board 20 are surrounded by an auxiliary frame, and a fourth side of the auxiliary board 20 is connected with the rotating shaft 30. The main board 10 and the auxiliary board 20 can rotate along the rotating shaft 30 by 0 ° -180 °, so that an included angle between the main board 10 and the auxiliary board 20 is 0 ° -180 °, and when the included angle is 0 °, the intelligent terminal is in a folded state, and when the included angle is 180 °, the intelligent terminal is in an unfolded state. When the intelligent terminal is in an unfolded state, as shown in fig. 3, the main board 10 and the sub-board 20 form a large screen, one side of the screen is provided with a main screen of the intelligent terminal, as shown in fig. 3 and 4, the other side of the screen is provided with a rear shell of the intelligent terminal corresponding to the position of the main board 10, and the other side of the screen is provided with a sub-screen of the intelligent terminal corresponding to the position of the sub-board 20. When the intelligent terminal is in a folded state, as shown in fig. 4, the main screen is folded inside, and the main board 10 and the auxiliary board 20 are fixed by sucking the main board side magnets and the auxiliary board side magnets.

Optionally, the main frame can be the metal frame, and the quantity of main frame can be one or more, and vice frame can be the metal frame, and the quantity of vice frame can be one or more, and when intelligent terminal was in the folded condition, at least two main frames of mainboard and at least two vice frames of subplate at least partly overlap. Optionally, when the intelligent terminal is in a folded state, the projection of one main frame of the main board on the plane of the auxiliary board is overlapped with one auxiliary frame or is overlapped with one auxiliary frame, and optionally, when the intelligent terminal is in a folded state, the projection of one auxiliary frame of the auxiliary board on the plane of the main board is overlapped with one main frame or is overlapped with one auxiliary frame.

Optionally, as shown in fig. 5, the main frame sequentially includes, from a position opposite to the rotation axis, a main frame 101, a main frame 102, a main frame 103, a main frame 104, a main frame 105, a main frame 106, a main frame 107, a main frame 108, a main frame 109, a main frame 110, and a main frame 112. The adjacent main frames can be isolated by a break seam and/or a connecting rib position, the radiation of the antenna can be radiated by the break seam, the break seam can improve the radiation efficiency of the antenna, the connecting rib position is used for connecting the main frames and the printed circuit board 40 (printed circuit board, PCB), and one side of the printed circuit board can be provided with a metal layer which can be formed by etching metal on the surface of the printed circuit board. The metal layer can be used for grounding electronic components carried on the printed circuit board so as to prevent electric shock or equipment damage of users. The metal layer may be referred to as a PCB floor including a main screen PCB floor corresponding to the main board and a sub-screen PCB floor corresponding to the sub-board. Not limited to PCB floors, the smart terminal may also have other floors for grounding, such as a metal center.

Alternatively, as shown in fig. 5, the main frame 101 and the main frame 102 may be isolated by a break 1, the main frame 102 and the main frame 103 may be isolated by a connection rib a, the main frame 103 and the main frame 104 may be isolated by a break 2, the main frame 104 and the main frame 105 may be isolated by a connection rib b, the main frame 105 and the main frame 106 may be isolated by a break 3, the main frame 106 and the main frame 107 may be isolated by a connection rib c, the main frame 107 and the main frame 108 may be isolated by a break 4, the main frame 108 and the main frame 109 may be isolated by a connection rib d, the main frame 109 and the main frame 110 may be isolated by a break 5 and a connection rib e, and the main frame 110 and the main frame 112 may be isolated by a break 6. Alternatively, the main frame 101 may be further connected to a connection rib g, where the connection rib g is used to connect the main frame 101 to the printed circuit board 40, the connection rib a is further used to connect the main frame 102 and the main frame 103 to the printed circuit board 40, the connection rib b is further used to connect the main frame 104 and the main frame 105 to the printed circuit board 40, the connection rib c is used to connect the main frame 106 and the main frame 107 to the printed circuit board 40, the connection rib d is used to connect the main frame 108 and the main frame 109 to the printed circuit board 40, the connection rib e is used to connect the main frame 110 to the printed circuit board 40, the main frame 112 is further connected to the rib f, and the connection rib f is used to connect the main frame 112 to the printed circuit board 40.

As shown in fig. 5, the sub-frame includes a sub-frame 201, a sub-frame 202, a sub-frame 204, a sub-frame 205, a sub-frame 206, a sub-frame 207, a sub-frame 208, a sub-frame 209, a sub-frame 210, and a sub-frame 212 from the position connected to the rotation shaft. The adjacent secondary frames can be isolated by the break seams and/or the connecting ribs. Alternatively, the auxiliary frame 201 and the auxiliary frame 202 may be isolated by the break joint 12, the auxiliary frame 202 and the auxiliary frame 204 may be isolated by the break joint 11, the auxiliary frame 204 and the auxiliary frame 205 may be isolated by the connection rib B, the auxiliary frame 205 and the auxiliary frame 206 may be isolated by the break joint 10, the auxiliary frame 206 and the auxiliary frame 207 may be isolated by the connection rib C, the auxiliary frame 207 and the auxiliary frame 208 may be isolated by the break joint 9, the auxiliary frame 208 and the auxiliary frame 209 may be isolated by the connection rib D, the auxiliary frame 209 and the auxiliary frame 210 may be isolated by the break joint 8, and the auxiliary frame 210 and the auxiliary frame 212 may be isolated by the break joint 7. Optionally, the auxiliary frame 201 may be further connected to a connection rib position G, where the connection rib position G is used to connect the auxiliary frame 201 with the printed circuit board 40, the connection rib position B is further used to connect the auxiliary frame 204 and the auxiliary frame 205 with the printed circuit board 40, the connection rib position C is further used to connect the auxiliary frame 206 and the auxiliary frame 207 with the printed circuit board 40, the connection rib position D is further used to connect the auxiliary frame 208 and the auxiliary frame 209 with the printed circuit board 40, the auxiliary frame 212 is further connected to a connection rib position F, and the connection rib position F is used to connect the auxiliary frame 212 with the printed circuit board 40.

When the intelligent terminal is in a folded state, the main frame 101 at least partially overlaps the auxiliary frame 201, the main frame 102 at least partially overlaps the auxiliary frame 202, the main frame 103 at least partially overlaps the auxiliary frame 202, the main frame 104 at least partially overlaps the auxiliary frame 204, the main frame 105 at least partially overlaps the auxiliary frame 205, the main frame 106 at least partially overlaps the auxiliary frame 206, the main frame 107 at least partially overlaps the auxiliary frame 207, the main frame 108 at least partially overlaps the auxiliary frame 208, the main frame 109 at least partially overlaps the auxiliary frame 209, the main frame 110 at least partially overlaps the auxiliary frame 210, and the main frame 112 at least partially overlaps the auxiliary frame 212.

Optionally, the smart terminal may further include at least one antenna connected to the motherboard 10, optionally, as shown in fig. 6-9, may include an antenna F1 connected to the main frame 101, an antenna F2 connected to the main frame 102, an antenna F3 connected to the main frame 103, an antenna F4 connected to the main frame 104, an antenna F5 connected to the main frame 105, and an antenna F6 connected to the main frame 106, where each antenna may be connected to the main frame through pins on the printed circuit board. Alternatively, the antenna radiators of the antennas F1-F6 may be metal rims, for example, corresponding main rims. The frequency Band of the antenna F1 may be an MHB (Middle High Band) frequency Band; the frequency Band of the antenna F2 may be a UHB (Ultra High Band) frequency Band; the frequency band of the antenna F3 can be a GPS L1 frequency band; the frequency band of the antenna F4 can be a GPS L5+2.4GWIFI mimo frequency band; the frequency band of the antenna F5 may be an MHB frequency band; the frequency band of antenna F6 may be the lb+uhb frequency band. The MHB band may be 1710MHz to 2700MHz, the UHB band may be 3300MHz to 5000MHz, the HB band may be 2300MHz to 2700MHz, the LB band may be 700MHz to 960MHz, the GPS L1 band may be 1575.42MHz + -1.023 MHz, the GPS L5 band may be 1176.45MHz + -1.023MHz,2.4G WIFI mimo band may be 2400MHz to 2483.5MHz, for example.

Optionally, when the antenna F1 is connected to the main frame 101, if the intelligent terminal is in a folded state, the sub-frame 201 is close to the antenna F1, so that the antenna F1 generates a frequency offset (for example, the frequency of the antenna F1 is outside the MHB frequency band), and a corresponding induced current is generated on the sub-frame 201, and the induced current generates clutter to affect the frequency band of the antenna F1. The antenna tuning module may be connected to the sub-frame 201 and/or the antenna F1 to adjust a physical length of the sub-frame 201 and/or adjust a frequency band of the antenna F1, so as to reduce an influence of the sub-frame 201 on the antenna F1, so that the antenna F1 can be in a preset frequency band, for example, in an MHB frequency band, when the intelligent terminal is in a folded state. Optionally, when the frequency band of the antenna F1 is greater than the preset frequency band, the length of the sub-frame 201 may be reduced, and when the frequency band of the antenna F1 is less than the preset frequency band, the length of the sub-frame 201 may be increased, so that the frequency band of the antenna F1 is within the preset frequency band when the intelligent terminal is in the folded state.

Optionally, when the antenna F2 is connected to the main frame 102, if the intelligent terminal is in a folded state, the sub-frame 202 is close to the antenna F2, so that the antenna F2 generates a frequency offset, and a corresponding induced current is generated on the sub-frame 202, and the induced current generates clutter, which affects the frequency band of the antenna F2. The antenna tuning module may be connected to the sub-frame 202 and/or the antenna F2 to adjust a physical length of the sub-frame 202 and/or a frequency band of the antenna F2, so as to reduce an influence of the sub-frame 202 on the antenna F2, and enable the antenna F2 to be in a preset frequency band, for example, in a UHB frequency band, when the intelligent terminal is in a folded state.

In practical application, because the positions of the antenna F1 and the antenna F2 are relatively close, the antenna F1 and the antenna F2 have certain influence on each other, and can be used as a group of antennas, and the frequency bands of the antenna F1 and the antenna F2 can be simultaneously adjusted through the antenna tuning module.

Optionally, when the antenna F3 is connected to the main frame 103, if the intelligent terminal is in a folded state, the sub-frame 202 is close to the antenna F3, so that the antenna F3 generates a frequency offset, and a corresponding induced current is generated on the sub-frame 203, and the induced current generates clutter, which affects the frequency band of the antenna F3. The antenna tuning module may be connected to the sub-frame 203 and/or the antenna F3 to adjust a physical length of the sub-frame 203 and/or a frequency band of the antenna F3, so as to reduce an influence of the sub-frame 203 on the antenna F3, and enable the antenna F3 to be in a preset frequency band, for example, a GPS L1 frequency band when the intelligent terminal is in a folded state. Optionally, when the antenna F4 is connected to the main frame 102, if the intelligent terminal is in a folded state, the sub-frame 204 is close to the antenna F4, so that the antenna F4 generates a frequency offset, and a corresponding induced current is generated on the sub-frame 204, and the induced current generates clutter, which affects the frequency band of the antenna F4. The antenna tuning module may be connected to the auxiliary frame 204 and/or the antenna F4 to adjust a physical length of the auxiliary frame 204 and/or a frequency band of the antenna F4, so as to reduce an influence of the auxiliary frame 204 on the antenna F4, so that the antenna F4 can be in a preset frequency band, for example, a GPS l5+2.4g WIFI mimo0 frequency band when the intelligent terminal is in a folded state. In practical application, because the positions of the antenna F3 and the antenna F4 are relatively close, the antenna F3 and the antenna F4 have certain influence on each other, and can be used as a group of antennas, and the frequency bands of the antenna F3 and the antenna F4 can be simultaneously adjusted through the antenna tuning module.

Optionally, when the antenna F5 is connected to the main frame 105, if the intelligent terminal is in a folded state, the sub-frame 205 is close to the antenna F5, so that the antenna F5 generates a frequency offset, and a corresponding induced current is generated on the sub-frame 205, and the induced current generates clutter, which affects the frequency band of the antenna F5. The antenna tuning module may be connected to the sub-frame 205 and/or the antenna F5 to adjust the physical length of the sub-frame 205 and/or the antenna F5, so as to reduce the influence of the sub-frame 205 on the antenna F5, so that the antenna F5 can be in a preset frequency band, for example, in an MHB frequency band, when the intelligent terminal is in a folded state. Optionally, when the antenna F6 is connected to the main frame 106, if the intelligent terminal is in a folded state, the sub-frame 206 is close to the antenna F6, so that the antenna F6 generates a frequency offset, and a corresponding induced current is generated on the sub-frame 206, and the induced current generates clutter, which affects the frequency band of the antenna F6. The antenna tuning module may be connected to the auxiliary frame 206 and/or the antenna F6, and adjust the physical length of the auxiliary frame 206 and/or the antenna F6, so as to reduce the influence of the auxiliary frame 206 on the antenna F6, so that the antenna F6 can be in a preset frequency band, for example, in the lb+uhb frequency band when the intelligent terminal is in a folded state. Alternatively, because the antenna F5 and the antenna F6 are located close to each other and have a certain influence, they can be used as a group of antennas, and the frequency bands of the antenna F5 and the antenna F6 are simultaneously adjusted by the antenna tuning module.

Optionally, as shown in fig. 10, the smart terminal may further include an antenna F7 connected to the main frame 107, an antenna F8 connected to the main frame 108, and an antenna F9 connected to the main frame 110. The antenna radiator of the antenna F7-antenna F9 is a metal frame, optionally, the frequency Band of the antenna F7 may be 2.4G WIFI mimo+UHB frequency Band, the frequency Band of the antenna F8 may be lb+hb (High Band) frequency Band, and the frequency Band of the antenna F9 may be mhb+uhb frequency Band. In practical application, 2 mm mo is constituteed to antenna F7's 2.4Gwifi and antenna F4's 2.4G wifi, and the antenna separates the overall arrangement, and when effectively avoiding horizontal screen to hold, the antenna is held simultaneously the condition, promotes user experience and feels. For the antenna F8, the aperture of the antenna F8 can be adjusted through a switch at the tail end of the antenna F8, and the bandwidth of the antenna F8 is widened. For antenna F9, the bandwidth of antenna F8 may be widened by the shunt switch and the antenna parasitic switch.

Optionally, as shown in fig. 10, the intelligent terminal may further include an antenna F11 and an antenna F12 located on the motherboard, where the antenna F11 and the antenna F12 are internal antennas, the frequency band of the antenna F11 may be a 5G wifi mimo frequency band, and the frequency band of the antenna F12 may be a 5G wifi mimo frequency band. The antenna radiator of the antenna F11 and the antenna F12 can be LDS (modified plastic containing organic metal compound) or FPC (Flexible Printed Circuit, flexible circuit board), the antenna F11 and the antenna F12 can be made of LDS or FPC, the antenna is attached to a plastic bracket of the whole machine, the intelligent terminal is in a folded state, the antenna F11 and the antenna F12 are not affected, and the folded state performance is good.

According to the antenna tuning module, the target auxiliary frame and/or the target antenna are/is connected, when the intelligent terminal is in the folded state, the length of the target auxiliary frame which is at least partially overlapped with the target main frame in the intelligent terminal and the frequency band of the target antenna connected with the target main frame can be adjusted, so that the target antenna is in a preset frequency band, the influence of the metal frame on one side of the auxiliary plate on the antenna is reduced, and the radiation capacity and the radiation efficiency of the antenna are improved.

Second embodiment

Referring to fig. 6, fig. 6 is a schematic structural diagram of an intelligent terminal according to a second embodiment, where the antenna tuning module of the embodiment of the present application may be used to adjust a width of a connection rib position for connecting a target sub-frame and a printed circuit board in the intelligent terminal (such as a folding mobile phone) so as to adjust a length of the target sub-frame.

As shown in fig. 6, the intelligent terminal includes a main board 10, an auxiliary board 20, a rotating shaft 30 and a printed circuit board 40, at least a part of the frame of the main board 10 is connected with the printed circuit board 40 through a connecting rib, and at least a part of the frame of the auxiliary board 20 is connected with the printed circuit board 40 through a connecting rib. Alternatively, the main frame 101 may be connected to the printed circuit board 40 through the connection rib position f, the main frame 102 and the main frame 103 may be connected to the printed circuit board 40 through the connection rib position a, the main frame 104 and the main frame 105 may be connected to the printed circuit board 40 through the connection rib position b, the main frame 106 and the main frame 107 may be connected to the printed circuit board 40 through the connection rib position c, the main frame 108 and the main frame 109 may be connected to the printed circuit board 40 through the connection rib position d, the main frame 109 and the main frame 110 may be connected to the printed circuit board 40 through the connection rib position e, and the main frame 112 may be connected to the printed circuit board 40 through the connection rib position g. The auxiliary frame 201 is connected with the printed circuit board 40 through the connecting rib position G, the auxiliary frame 204 and the auxiliary frame 205 can be connected with the printed circuit board 40 through the connecting rib position B, the auxiliary frame 206 and the auxiliary frame 207 can be connected with the printed circuit board 40 through the connecting rib position C, the auxiliary frame 208 and the auxiliary frame 209 can be connected with the printed circuit board 40 through the connecting rib position D, and the auxiliary frame 212 can be connected with the printed circuit board through the connecting rib position F. Alternatively, the connection rib may be a metal connection part.

Optionally, when the target auxiliary frame is connected with the printed circuit board through the connecting rib position, the antenna tuning module can adjust the length of the target auxiliary frame by adjusting the length of the connecting rib position.

Optionally, the target auxiliary frame is an auxiliary frame 201, when the intelligent terminal is in a folded state, the auxiliary frame 201 is close to the antenna F1, so that the antenna F1 generates frequency offset, and corresponding induced current is generated on the auxiliary frame 201, and the induced current generates clutter, so that the frequency band of the antenna F1 is affected. The antenna tuning module can adjust the length (transverse length) of the connection rib position G to adjust the length (transverse length) of the auxiliary frame 201, so that the position of clutter generated by the auxiliary frame 201 deviates from a preset frequency band of the antenna F1, the influence of the auxiliary frame 201 on the antenna F1 is reduced, the antenna F1 can be located in the preset frequency band when the intelligent terminal is in a folded state, optionally, when the frequency band of the antenna F1 is greater than the preset frequency band, the length (transverse length) of the connection rib position G can be increased, the length (transverse length) of the auxiliary frame 201 is reduced, and when the frequency band of the antenna F1 is less than the preset frequency band, the length (transverse length) of the connection rib position G can be reduced to increase the length (transverse length) of the auxiliary frame 201, so that the frequency band of the antenna F1 is located in the preset frequency band when the intelligent terminal is in a folded state.

Optionally, the target auxiliary frame is the auxiliary frame 204, when the intelligent terminal is in a folded state, the auxiliary frame 204 is close to the antenna F4, so that the antenna F4 generates a frequency offset, and a corresponding induced current is generated on the auxiliary frame 204, and the induced current generates clutter, so that the frequency band of the antenna F4 is affected. The antenna tuning module can adjust the length (transverse length) of the connecting rib B to adjust the length (transverse length) of the auxiliary frame 204, so that the position of clutter generated by the auxiliary frame 204 deviates from the preset frequency band of the antenna F4, the influence of the auxiliary frame 204 on the antenna F4 is reduced, the antenna F4 can be in the preset frequency band when the intelligent terminal is in a folded state,

optionally, the target auxiliary frame is an auxiliary frame 205, when the intelligent terminal is in a folded state, the auxiliary frame 205 is close to the antenna F5, so that the antenna F5 generates a frequency offset, and a corresponding induced current is generated on the auxiliary frame 205, and the induced current generates clutter, so that the frequency band of the antenna F5 is affected. The antenna tuning module can adjust the length (longitudinal length) of the connecting rib position B to adjust the length (longitudinal length) of the auxiliary frame 205, so that the position of clutter generated by the auxiliary frame 205 deviates from a preset frequency band of the antenna F5, the influence of the auxiliary frame 205 on the antenna F5 is reduced, and the antenna F5 can be located in the preset frequency band when the intelligent terminal is in a folded state. Optionally, when the frequency band of the antenna F5 is greater than the preset frequency band, the length (longitudinal length) of the connection rib B may be increased, the length (longitudinal length) of the sub-frame 205 may be reduced, and when the frequency band of the antenna F5 is less than the preset frequency band, the length (longitudinal length) of the connection rib B may be reduced, so as to increase the length (longitudinal length) of the sub-frame 205, so that the frequency band of the antenna F5 is within the preset frequency band when the intelligent terminal is in the folded state.

Optionally, the target auxiliary frame is an auxiliary frame 206, when the intelligent terminal is in a folded state, the auxiliary frame 206 is close to the antenna F6, so that the antenna F6 generates a frequency offset, and a corresponding induced current is generated on the auxiliary frame 206, and the induced current generates clutter, so that the frequency band of the antenna F6 is affected. The antenna tuning module can adjust the length (longitudinal length) of the connecting rib position C to adjust the length (longitudinal length) of the auxiliary frame 206, so that the position of clutter generated by the auxiliary frame 206 deviates from a preset frequency band of the antenna F6, the influence of the auxiliary frame 206 on the antenna F6 is reduced, and the antenna F6 can be located in the preset frequency band when the intelligent terminal is in a folded state.

Optionally, as shown in fig. 6, the antenna tuning module includes a first tuning circuit 100, where the first tuning circuit 100 is located on the motherboard 10, and the first tuning circuit 100 is connected to the target antenna and is used to adjust a frequency band of the target antenna, so that the frequency band of the target antenna can be finely tuned by the first tuning circuit 100, and meanwhile, the frequency band of the target antenna can be adjusted by adjusting a physical length of a target sub-frame corresponding to a target main frame to which the target antenna is connected, thereby improving adjustment efficiency. It should be noted that, when the difference between the actual frequency of the target antenna and the target frequency is small, the frequency band of the target antenna may be adjusted only by the first tuning circuit 100, so that the target antenna is within the preset frequency band. Optionally, when the difference between the actual frequency of the target antenna and the target frequency is within a preset range, the target tuning frequency band is adjusted only by the first tuning circuit, and the preset range may be determined according to the performance of the antenna.

Alternatively, the first tuning circuit 100 may include at least one single pole single throw switch (SPST) and at least one first sub-tuning circuit, a first end of each single pole single throw switch is grounded, a second end of each single pole single throw switch is connected to one first sub-tuning circuit, a second end of the first sub-tuning circuit is connected to the target antenna, and the first sub-tuning circuit may include a capacitor, an inductor, a series capacitor and inductor, a parallel capacitor and inductor, and the like, so that a frequency band of one or more antennas may be adjusted through the single pole single throw switch and the first sub-tuning circuit. Each single pole single throw switch may be connected to a different first sub-tuning circuit.

As shown in fig. 7, the first sub-tuning circuit includes a switch of 4×spst, the switch of 4×spst includes four single pole single throw switches, each of which is connected to the first sub-tuning circuit, and for convenience of description, the four single pole single throw switches are referred to as a first single pole single throw switch, a second single pole single throw switch, a third single pole single throw switch, and a fourth single pole single throw switch, respectively. The first end of the first single-pole single-throw switch is grounded, the second end of the first single-pole single-throw switch is connected with the first end of the first sub-tuning circuit RF1, the first end of the second single-pole single-throw switch is grounded, the second end of the second single-pole single-throw switch is connected with the first end of the first sub-tuning circuit RF2, the first end of the third single-pole single-throw switch is grounded, the second end of the third single-pole single-throw switch is connected with the first end of the first sub-tuning circuit RF3, the first end of the fourth single-pole single-throw switch is grounded, and the second end of the fourth single-pole single-throw switch is connected with the first end of the first sub-tuning circuit RF 4. Alternatively, the second terminal of the first sub-tuning circuit RF1 and the second terminal of the first sub-tuning circuit RF2 may be connected to the antenna F2, and the second terminal of the first sub-tuning circuit RF3 and the second terminal of the first sub-tuning circuit RF4 may be connected to the antenna F1. Thus, when the target antenna is the antenna F1, the first single pole single throw switch and/or the second single pole single throw switch may be closed to adjust the frequency band of the antenna F1 by the first sub-tuning circuit RF3 and/or the first sub-tuning circuit RF 4; when the target antenna is the antenna F2, the third single-pole single-throw switch and/or the fourth single-pole single-throw switch can be closed so as to adjust the frequency band of the antenna F2 through the first sub-tuning circuit RF1 and/or the first sub-tuning circuit RF 2; when the target antenna is the antenna F1 and the antenna F2, the first single-pole single-throw switch and/or the second single-pole single-throw switch may be closed, and the third single-pole single-throw switch and/or the fourth single-pole single-throw switch may be closed at the same time, so as to adjust the frequency band of the antenna F1 through the first sub-tuning circuit RF3 and/or the first sub-tuning circuit RF4, and simultaneously adjust the frequency band of the antenna RF2 through the first sub-tuning circuit RF1 and/or the first sub-tuning circuit RF 2. In practical applications, the type of the switch of 4×spst may be CAN1472.

Optionally, a matching circuit may be further connected between the antenna and the main frame, the first end of the matching is connected to the antenna, the second end of the matching antenna is connected to the main frame corresponding to the antenna, and the matching circuit is used for implementing impedance transformation to transform the source impedance to a required impedance point. When the matching circuits are connected between the antenna and the main frame, each first tuning circuit can be connected with the second end of the matching circuit connected with the corresponding antenna so as to widen the frequency band of the antenna. Alternatively, as shown in fig. 6, a matching circuit M1 is connected between the antenna F1 and the main frame 101, and a matching circuit M2 is connected between the antenna F2 and the main frame 102.

The antenna tuning module comprises a first tuning circuit located on a main board, wherein the first tuning circuit is connected with a target antenna, so that the frequency band of the target antenna is adjusted through the first tuning circuit, the target antenna is located in a preset frequency band, the influence of a metal frame on one side of a subsidiary board on the antenna is reduced, and the radiation capacity and the radiation efficiency of the antenna are improved.

Third embodiment

Referring to fig. 8, fig. 8 is a schematic structural diagram of an intelligent terminal according to a third embodiment, and an antenna tuning module according to an embodiment of the present application may be used to adjust a length of a target sub-frame in the intelligent terminal (such as a folding mobile phone).

The antenna tuning module comprises a second tuning circuit 200, the second tuning circuit 200 is located on the auxiliary board 20, a first end of the second tuning circuit 200 is connected with the target auxiliary frame, and a second end of the second tuning circuit 200 is grounded, so that the length of the target auxiliary frame can be adjusted, the frequency band of the target antenna connected with the target main frame can be adjusted, and the frequency band of the target antenna is located in a preset frequency band.

Optionally, the second tuning circuit 200 may include an LC resonant circuit, where the LC resonant circuit is a circuit that is formed by elements such as a capacitor, an inductor, a resistor, and an electronic device and is capable of generating an oscillating current or having a filtering effect, so that different capacitance and inductance values can be presented for different target frequencies of different target antennas to adjust lengths of different target sub-frames. Optionally, when the frequency band of the target antenna is smaller than the preset frequency band, the LC resonant circuit may be a capacitor, that is, the capacitor is connected to the target sub-frame, so that the length of the target sub-frame is increased, and the target antenna is located in the preset frequency band.

Alternatively, as shown in fig. 8, a first end of LC resonant circuit M24 is connected to sub-frame 204 and a second end of LC resonant circuit M24 is grounded, such as may be connected to ground on a printed circuit board. When the intelligent terminal is in a folded state, the main frame 104 at least partially overlapped with the auxiliary frame 204 is connected with an antenna F4, the frequency band of the antenna F4 is a GPS L5+2.4G WIFI mimo0 frequency band, the intelligent terminal has an optimal jX1 for the GPS L5 frequency band, and has an optimal jX2 for the 2.4G WIFI mimo frequency band, and the length of the auxiliary frame 204 is adjusted through the LC resonant circuit M24, so that jX1 is presented in the GPS L5 frequency band, and jX2 is presented in the 2.4G WIFI mimo frequency band. A first end of LC resonant circuit M23 is connected to sub-frame 202 and a second end of LC resonant circuit M23 is grounded. When the intelligent terminal is in a folded state, the main frame 103 at least partially overlapped with the auxiliary frame 202 is connected with the antenna F3, and the length of the auxiliary frame 202 is adjusted through the LC resonant circuit M23, so that the frequency band of the antenna F3 is in a preset frequency band.

The antenna tuning module provided by the application comprises a second tuning circuit located on the auxiliary board, wherein the second tuning circuit is connected with the target auxiliary frame, the length of the target auxiliary frame can be adjusted, the position of clutter generated by the target auxiliary frame deviates from the preset frequency band of the target antenna, the target antenna is located in the preset frequency band, the influence of the metal frame on one side of the auxiliary board on the antenna is reduced, and the radiation capacity and the radiation efficiency of the antenna are improved.

Fourth embodiment

Referring to fig. 9, fig. 9 is a schematic structural diagram of an intelligent terminal according to a fourth embodiment, and an antenna tuning module according to an embodiment of the present application may be used to adjust a length of a target sub-frame in the intelligent terminal (such as a folding mobile phone).

The antenna tuning module comprises a second tuning circuit 300, the second tuning circuit 300 is located on the auxiliary board 20, a first end of the second tuning circuit 300 is connected with the target auxiliary frame, and a second end of the second tuning circuit 300 is grounded, so that the length of the target auxiliary frame can be adjusted, the frequency band of the target antenna connected with the target main frame can be adjusted, and the frequency band of the target antenna is located in a preset frequency band.

Alternatively, the second tuning circuit 300 may include at least one single pole single throw switch (SPST) and at least one third tuning circuit, a first end of each single pole single throw switch is grounded, a second end of each single pole single throw switch is connected to a third tuning circuit, and the third tuning circuit may include a capacitor, an inductor, a series capacitor and inductor, a parallel capacitor and inductor, and the like, so that a frequency band of one or more antennas may be adjusted by the single pole single throw switch and the third tuning circuit. Each single pole single throw switch can be connected to a different third tuning circuit.

Optionally, the third tuning circuit includes a switch of 4×spst, the switch of 4×spst includes four single pole single throw switches, each single pole single throw switch is connected to the third tuning circuit, and for convenience of description, the four single pole single throw switches are referred to as a first single pole single throw switch, a second single pole single throw switch, a third single pole single throw switch, and a fourth single pole single throw switch, respectively. The first end of the first single-pole single-throw switch is grounded, the second end of the first single-pole single-throw switch is connected with the first end of the third tuning circuit RF11, the first end of the second single-pole single-throw switch is grounded, the second end of the second single-pole single-throw switch is connected with the first end of the third tuning circuit RF21, the first end of the third single-pole single-throw switch is grounded, the second end of the third single-pole single-throw switch is connected with the first end of the third tuning circuit RF31, the first end of the fourth single-pole single-throw switch is grounded, and the second end of the fourth single-pole single-throw switch is connected with the first end of the third tuning circuit RF 41. Alternatively, the second end of the third tuning circuit RF11 and the second end of the third tuning circuit RF21 may be connected to the sub-frame 205, and the second end of the third tuning circuit RF31 and the second end of the third tuning circuit RF41 may be connected to the sub-frame 206. Thus, when the target antenna is the antenna F5, the first single pole single throw switch and/or the second single pole single throw switch may be closed to adjust the frequency band of the antenna F5 by the third tuning circuit RF31 and/or the third tuning circuit RF 41; when the target antenna is the antenna F6, the third single-pole single-throw switch and/or the fourth single-pole single-throw switch can be closed to adjust the frequency band of the antenna F6 through the third tuning circuit RF11 and/or the third tuning circuit RF 21; when the target antennas are the antenna F5 and the antenna F6, the first single-pole single-throw switch and/or the second single-pole single-throw switch can be closed, and meanwhile, the third single-pole single-throw switch and/or the fourth single-pole single-throw switch are closed, so that the frequency band of the antenna F5 is adjusted through the third tuning circuit RF31 and/or the third tuning circuit RF41, the frequency band of the antenna RF6 is adjusted through the third tuning circuit RF11 and/or the third tuning circuit RF21, and the two antennas share one switch of 4 x spst, so that the space and the cost of an ornament can be saved. In practical applications, the type of the switch of 4×spst may be CAN1472.

The antenna tuning module provided by the application comprises a second tuning circuit located on the auxiliary board, wherein the second tuning circuit is connected with the target auxiliary frame, the length of the target auxiliary frame can be adjusted, the position of clutter generated by the target auxiliary frame deviates from the preset frequency band of the target antenna, the target antenna is located in the preset frequency band, the influence of the metal frame on one side of the auxiliary board on the antenna is reduced, and the radiation capacity and the radiation efficiency of the antenna are improved.

Fifth embodiment

The embodiment of the application provides an intelligent terminal, which comprises the antenna tuning module.

Optionally, the intelligent terminal may further include at least one matching circuit, each matching circuit is connected to one antenna respectively, and is used for performing impedance transformation. As shown in fig. 6, a first end of the matching circuit M1 is connected to the antenna F1, a second end of the matching circuit M1 is connected to the main frame 101, a first end of the matching circuit M2 is connected to the antenna F2, and a second end of the matching circuit M2 is connected to the main frame 102. As shown in fig. 8, a first end of the matching circuit M3 is connected to the antenna F3, a second end of the matching circuit M3 is connected to the main frame 103, a first end of the matching circuit M4 is connected to the antenna F4, and a second end of the matching circuit M4 is connected to the main frame 104. As shown in fig. 9, a first end of the matching circuit M5 is connected to the antenna F5, a second end of the matching circuit M5 is connected to the main frame 105, a first end of the matching circuit M6 is connected to the antenna F6, and a second end of the matching circuit M6 is connected to the main frame 106.

Optionally, the intelligent terminal can also include printed circuit board and connecting rib position, and the target auxiliary frame is connected to the first end at connecting rib position, and printed circuit board is connected to the second end at connecting rib position, and connecting rib position not only can keep apart adjacent main frame or auxiliary frame, can also be in the same place mainboard and auxiliary board and printed circuit board connection.

It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided in the embodiments of the present application, and the technical solution of the present application may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

The units in the device of the embodiment of the application can be combined, divided and pruned according to actual needs.

In this application, the same or similar term concept, technical solution, and/or application scenario description will generally be described in detail only when first appearing, and when repeated later, for brevity, will not generally be repeated, and when understanding the content of the technical solution of the present application, etc., reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution, and/or application scenario description, etc., which are not described in detail later.

In this application, the descriptions of the embodiments are focused on, and the details or descriptions of one embodiment may be found in the related descriptions of other embodiments.

The technical features of the technical solutions of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the present application.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (10)

1. An antenna tuning module is applied to an intelligent terminal and is characterized by comprising a main board, an auxiliary board and at least one antenna connected to the main board, wherein when the intelligent terminal is in a folded state, at least two main frames of the main board and at least two auxiliary frames of the auxiliary board are at least partially overlapped;

The antenna tuning module is connected with the target auxiliary frame and/or the target antenna, the target antenna is connected with the target main frame, and the target auxiliary frame and the target main frame are at least partially overlapped.

2. The module of claim 1, wherein the antenna tuning module comprises a first tuning circuit located on the motherboard, connected to the target antenna.

3. The module of claim 2, wherein the first tuning circuit comprises at least one single pole single throw switch and at least one first sub-tuning circuit, a first end of the single pole single throw switch being grounded, a second end of the single pole single throw switch being connected to a first end of the first sub-tuning circuit, a second end of the first sub-tuning circuit being connected to the target antenna.

4. The module of claim 1, wherein the antenna tuning module comprises a second tuning circuit located on the sub-board, a first end of the second tuning circuit being connected to the target sub-frame, a second end of the second tuning circuit being grounded.

5. The module of claim 4, wherein the second tuning circuit comprises an LC tuning circuit, a first end of the LC tuning circuit being connected to the target sub-frame, a second end of the LC tuning circuit being grounded.

6. The module of claim 4, wherein the second tuning circuit comprises at least one single pole single throw switch and at least one third tuning circuit, a first end of the single pole single throw switch being grounded, a second end of the single pole single throw switch being connected to a first end of the third tuning circuit, a second end of the third tuning circuit being connected to the target sub-frame.

7. The module of any one of claims 4 to 6, wherein a second end of the second tuning circuit is connected to ground of a printed circuit board in the smart terminal.

8. An intelligent terminal comprising the antenna tuning module of any one of claims 1 to 7.

9. The intelligent terminal of claim 8, further comprising a printed circuit board and a connection bar, wherein a first end of the connection bar is connected to the target sub-frame and a second end of the connection bar is connected to the printed circuit board.

10. The intelligent terminal of claim 8, further comprising at least one matching circuit, the matching circuit being coupled to an antenna.