WO2022062239A1

WO2022062239A1 - Antenna structure and feed point switching method

Info

Publication number: WO2022062239A1
Application number: PCT/CN2020/140038
Authority: WO
Inventors: 陈泽清; 马颖江; 徐彭飞
Original assignee: 珠海格力电器股份有限公司
Priority date: 2020-09-28
Filing date: 2020-12-28
Publication date: 2022-03-31
Also published as: CN112216979B; CN112216979A

Abstract

The present application relates to the technical field of antenna structures, and in particular to an antenna structure and a feed point switching method. When the antenna structure is used, a radio frequency module communicating with feed points is first used to separately measure a feedback signal intensity at each feed point, and then the measured feedback signal intensity is compared with a preset feedback signal intensity; if it is detected that the feedback signal intensity of a feed point connected to a conductor antenna is less than the preset feedback signal intensity, the current direction of an energized coil is changed using a control module, such that the conductor antenna is disconnected from the current feed point, and moves to communicate with a feed point having a strong feedback signal. According to the present embodiment, automatic feed point switching can be performed according to the feedback signal intensity, such that the receiving or transmitting signal intensity of an antenna is ensured, and the stable operation of a mobile terminal is finally ensured.

Description

A kind of antenna structure and feed point conversion method

The present disclosure claims the priority of the Chinese patent application with the application number 202011043007.3 and the invention titled "An Antenna Structure and Feed Point Conversion Method" filed with the China Patent Office on September 28, 2020, the entire contents of which are incorporated herein by reference Public.

technical field

The present disclosure relates to the technical field of antenna structures, and in particular, to an antenna structure and a feed point conversion method.

Background technique

At present, when a user holds a mobile phone to make a call, due to the occlusion of the mobile phone antenna structure due to the holding position, etc., the received or transmitted signal of the antenna is weakened, and the quality of the call signal is poor.

SUMMARY OF THE INVENTION

(1) In view of this, the embodiments of the present disclosure provide an antenna structure and a feed point conversion method, so as to alleviate the technical problem that the communication signal becomes weak due to the shielding of the mobile phone antenna structure due to the holding position and the like in the related art.

(2) Technical solutions

In order to achieve the above objective, an embodiment of the first aspect of the present disclosure proposes an antenna structure, including:

At least two feed points are installed in the middle frame of the mobile terminal, and radio frequency modules are communicatively connected to the outside;

At least one conductor antenna is provided with magnetic poles with different magnetic properties at both ends, and is communicatively connected to one of the feed points through the magnetic poles;

At least one energized coil is installed between the two feed points, and a control module is communicatively connected to the outside, and is configured to change the current direction of the energized coil, so that the conductor antenna is disconnected from the current feed point, and Move to communicate with the target feed point.

In some embodiments, the feed point and the side wall of the middle frame of the mobile terminal form a moving cavity for the conductor antenna to move.

In some embodiments, at least two of the feed points are installed in the same side of the middle frame of the mobile terminal.

In some embodiments, there are several feeding points and energizing coils, and the plurality of feeding points and energizing coils are installed in four sides of the middle frame of the mobile terminal.

In some implementation manners, one of the conductor antennas is respectively movably connected to the four sides of the middle frame of the mobile terminal.

In some embodiments, an antenna track is further provided in the middle frame of the mobile terminal, and the conductor antenna is movably connected to the antenna track.

In order to achieve the above objective, a second aspect embodiment of the present disclosure provides a feed point conversion method, using the antenna structure described in any of the foregoing, the method includes:

Detecting feedback signal strengths of at least two feed points set on the mobile terminal;

If it is detected that the feedback signal strength of the feed point connected to the conductor antenna is less than the preset feedback signal strength, the feed point with a strength greater than or equal to the preset feedback signal strength is determined as the target feed point;

The current direction of the energized coil is changed by the control module, so that the conductor antenna is disconnected from the current feed point and moved to communicative connection with the target feed point.

In some embodiments, after the step of changing the current direction of the energized coil by the control module, so that the conductor antenna is disconnected from the current feed point and moved to the communication connection with the target feed point, the method further includes :

If it is detected that the conductor antenna is separated from the energized coil, the control module changes the current direction of the energized coil again.

In order to achieve the above objective, an embodiment of a third aspect of the present disclosure provides a mobile terminal, including: the antenna structure described in any one of the foregoing.

In order to achieve the above object, an embodiment of the fourth aspect of the present disclosure provides a storage medium, where a computer program is stored in the storage medium, wherein the computer program is configured to execute the method described in any one of the preceding items when running. .

(3) Beneficial effects:

Embodiments in the present disclosure have the following advantages or beneficial effects:

Embodiments of the present disclosure provide an antenna structure and a feed point conversion method, including:

At least two feed points are installed in the middle frame of the mobile terminal, and a radio frequency module is communicatively connected to the outside; at least one conductor antenna is provided with magnetic poles with different magnetic properties at both ends, and communicates with one of the feed points through the magnetic poles. point communication connection; at least one energized coil is installed between the two feed points, and a control module is communicatively connected to the outside, and is set to change the current direction of the energized coil, so that the conductor antenna is connected to the current feed point disconnect and move to communicate with the target feed;

When using, firstly, use the radio frequency module connected to the feed point to detect the feedback signal strength of each feed point respectively, and then compare the detected feedback signal strength with the preset feedback signal strength. If the feedback signal strength of the connected feed point is less than the preset feedback signal strength, the control module is used to change the current direction of the energized coil, so that the conductor antenna is disconnected from the current feed point and moved to the feed point with the stronger feedback signal For communication connection, this embodiment can automatically switch the feed point according to the strength of the feedback signal, so as to ensure the strength of the signal received or transmitted by the antenna, and finally ensure the stable operation of the mobile terminal.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the accompanying drawings required for describing the embodiments or related technologies will be briefly introduced below. Obviously, for those skilled in the art, On the premise of no creative labor, other drawings can also be obtained from these drawings.

FIG. 1 is a schematic structural diagram of an antenna structure in the present disclosure;

2 is a schematic structural diagram of a conductor antenna in the present disclosure;

3 is a schematic structural diagram of a radio frequency module in the present disclosure;

FIG. 4 is a flowchart of a feed point conversion method in the present disclosure.

In the figure: 1. Feeding point; 2. Middle frame of mobile terminal; 3. Radio frequency module; 4. Conductor antenna; 5. Magnetic pole; 6. Powered coil; 7. Control module; 8. Antenna track.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are some, but not all, embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

The present disclosure will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

In order to solve the above technical problems, as shown in FIG. 1 to FIG. 3 , an embodiment of the first aspect of the present disclosure proposes an antenna structure, including:

At least two feed points 1 are installed in the middle frame 2 of the mobile terminal, and a radio frequency module 3 is communicatively connected to the outside; wherein, as shown in FIG. 3, the radio frequency module 3 can adopt a radio frequency system, and the specific structure of the radio frequency system is related to the technology, so I won't go into details here;

Specifically, at least two of the feed points 1 are installed in the same side of the middle frame 2 of the mobile terminal; exemplarily, they can be installed on the same long side of the middle frame 2 of the mobile terminal, and the two feed points 1 The distance between them is that when the user holds the mobile terminal to make a call, only one of the feed points will be shielded. The actual distance between the two feed points can be pre-designed as needed; on the same short side of frame 2 in the terminal;

At least one conductor antenna 4, as shown in FIG. 2, is provided with magnetic poles 5 with different magnetic properties at both ends, and is communicatively connected to one of the feed points 1 through the magnetic poles 5; wherein, one end of the conductor antenna is provided with an N pole, The other end is provided with an S pole, and since the feed point is generally made of metal, the conductor antenna can be connected and disconnected through the magnetic pole and the feed point;

Specifically, the middle frame 2 of the mobile terminal is hollowed out to form an antenna track 8, and the conductor antenna 4 is movably connected to the antenna track 8. Preferably, the size of the antenna track 8 is larger than that of the conductor antenna, so as to ensure that the conductor antenna can be It is enough to slide stably in the antenna track; the feed point 1 and the side wall of the middle frame 2 of the mobile terminal form a moving cavity for the movement of the conductor antenna 4. When in use, the conductor antenna can move in the moving cavity to realize the movement process. , disconnect from one of the feed points, and communicatively connect with the other feed point.

At least one energized coil 6 is installed between the two feed points 1, and a control module 7 is communicatively connected to the outside. Preferably, the control module 7 can select a driver ic, which is set to change the current direction of the energized coil 6. , so that the conductor antenna 4 is disconnected from the current feed point 1, and moved to communicate with the target feed point 1;

When using, firstly, use the radio frequency module connected to the feed point to detect the feedback signal strength of each feed point respectively, and then compare the detected feedback signal strength with the preset feedback signal strength. If the feedback signal strength of the connected feed point is less than the preset feedback signal strength, the control module is used to change the current direction of the energized coil, so that the conductor antenna is disconnected from the current feed point and moved to the feed point with strong feedback signal For communication connection, this embodiment can automatically switch the feed point according to the strength of the feedback signal, so as to ensure the strength of the signal received or transmitted by the antenna, and finally ensure the stable operation of the mobile terminal.

Specifically, at least two of the feed points 1 are installed in the same side of the middle frame 2 of the mobile terminal; exemplarily, they can be installed on the same long side of the middle frame 2 of the mobile terminal, and the two feed points 1 The distance between them is that when the user holds the mobile terminal to make a call, only one of the feed points will be shielded, and the actual distance between the two feed points can be pre-designed as required.

Exemplarily, when two feed points 1 are installed on the same long side of the middle frame 2 of the mobile terminal, when in use, when the user holds the phone to make a call, when one of the radio frequency modules 3 detects the feed point 1 connected to it, the feedback If the signal strength is less than the preset feedback signal strength, the control module will be used to change the current direction of the energized coil. At this time, the energized coil will give the conductor antenna an attractive force, which will cause the conductor antenna to disconnect from the current feed point and move through the coil to the same position as the current feed point. Another feed point with a strong feedback signal is connected, so as to ensure the strength of the signal received or transmitted by the antenna structure in this embodiment, and to ensure the stability of the call signal of the mobile terminal.

Among them, which direction current or how much current is loaded by the energized coil is determined by the control module 7 according to the feed point and the nearest conductor antenna, and in the design and verification stage of the mobile terminal, it will be pre-calculated according to the distance between the feed point and the conductor antenna. Good conductor antenna position movement and current ratio.

In an embodiment of the present disclosure, in order to further ensure the signal stability of the antenna structure, the number of feed points 1 and the energization coils 6 are set to a plurality, and the plurality of feed points 1 and energization coils 6 are installed in the mobile terminal Inside the four sides of the frame 2; the four sides of the frame 2 in the mobile terminal are respectively movably connected with one of the conductor antennas 4; in this embodiment, as shown in FIG. Four feed points are installed on the two long sides respectively, a energized coil is arranged between each two feed points, and a conductor antenna is movably connected in each long side, and the conductor antenna can be connected with the long side within the range of the long side. Different feed points are connected. When it is detected that the feedback signal strength of the feed point set at the bottom of the long side is the strongest, the conductor antenna is driven to move to its location and communicated with it;

Similarly, two feed points are respectively installed on the two short sides of the frame 2 in the mobile terminal, an energized coil is arranged between the two feed points, and an energized coil is also arranged on both sides of the two feed points. , when it is detected that the feedback signal strength of the feed point set at the edge of the short side is the strongest, the conductor antenna is driven to move to its location and communicated with it;

In this embodiment, the feedback signal strength of each feed point in the four sides of the mobile terminal can be detected in real time, and according to the detection result, the corresponding conductor antenna is moved to connect with the feed point with the strongest feedback signal strength. When it is detected that the short side of the earpiece end, the feedback signal of the rightmost feed point is the strongest, then the conductor antenna arranged in the short side is driven to move to its position, and communicated with it to ensure the movement. Terminal signal stability.

In order to solve the above technical problems, as shown in FIG. 4 , an embodiment of the second aspect of the present disclosure proposes a feed point conversion method, using the antenna structure described in any of the foregoing, the method includes:

S101: Detect feedback signal strengths of at least two feed points 1 set on the mobile terminal;

S102: If it is detected that the feedback signal strength of the feed point 1 connected with the conductor antenna 4 is less than the preset feedback signal strength, then the feed point 1 that is greater than or equal to the preset feedback signal strength is determined as the target feed point 1;

S103 : The current direction of the energized coil 6 is changed by the control module 7 , so that the conductor antenna 4 is disconnected from the current feed point 1 and moved to communicate with the target feed point 1 .

In an embodiment of the present disclosure, in order to ensure the smooth movement of the conductor antenna, the control module 7 changes the current direction of the energized coil 6, so that the conductor antenna 4 is disconnected from the current feed point 1, and moves to the same position as the current feed point 1. After the communication connection step of the target feed point 1, the method further includes:

If it is detected that the conductor antenna 4 is separated from the energized coil 6, the control module 7 changes the current direction of the energized coil 6 again;

Specifically, a sensor can be provided at the end of the energized coil, and the sensor can detect whether the conductor antenna completely passes through the energized coil;

Taking the design of two feed points as an example, when there is no object shielding the feed points, the N pole of the conductor antenna is connected to one of the feed points (of course, the S pole can also be connected to one of the feed points. Here is an example for the convenience of description. ), at this time, the end of the control module close to the conductor antenna is the positive pole, and the end far from the conductor antenna is the negative pole. According to Ampere’s law, the end of the energized coil close to the conductor antenna is the S pole, and the end away from the conductor antenna is the N pole. Therefore, The energized coil will give the conductor antenna a repulsive force, pushing it to connect with the feed point stably; when the RF module connected to the feed point detects that the feedback signal strength here is lower than the preset feedback signal strength, it means that the feed point is here It is shielded by the object and the signal is weak. At this time, the current direction to the energized coil is changed by the control module, so that the end of the energized coil close to the conductor antenna becomes the N pole, and the end far from the conductor antenna is the S pole. At this time, the energized coil will give The conductor antenna has an attractive force, pulls it to disconnect from the currently connected feed point, and moves in the direction of another feed point. When the sensor installed at the end of the energized coil detects that the conductor antenna completely passes through the energized coil, it passes through the energized coil again. The control module changes the direction of the current given to the energized coil, so that the end of the energized coil close to the conductor antenna becomes the N pole, and the end away from the conductor antenna is the S pole. Connect with another feed point and communicate with it.

When there are more than two feed points, taking the design of three feed points as an example, when there is no object shielding the feed points, the N pole of the conductor antenna is connected to the feed point set in the middle, and the S pole is the free end. At this time, in order to ensure The conductor antenna is stably connected to the feed point. At this time, the control modules arranged at both ends of the conductor antenna give the same current direction to the energized coil, that is, the two energized coils give the conductor antenna a repulsive force at the same time, so that the conductor antenna is stably connected to the feed point. , to avoid displacement changes when the mobile terminal moves, and when the radio frequency module detects that the feedback signal strength of the feed point set at the far left is the strongest, it changes the current given to the energized coil by the control module set at the left end of the conductor antenna again, prompting it to The repulsive force given to the conductor antenna becomes an attractive force. At this time, the conductor antenna will be disconnected from the feed point set in the middle under the combined action of the attractive force of the energized coil at the left end and the repulsive force of the preferred energized coil, and will quickly move to the far left. feed point and communicate with it.

This solution can autonomously identify the feedback signal strength of all feed points, move the conductor antenna to the feed point with the strongest feedback signal strength, and communicate with it, so as to realize the signal stability of the mobile terminal.

In order to solve the above technical problem, an embodiment of a third aspect of the present disclosure provides a mobile terminal, including: the antenna structure described in any one of the foregoing.

A feed point conversion device provided by an embodiment of the present disclosure includes: a server and a terminal, where the server and the terminal are connected for communication;

The server includes: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; the memory stores a computer program that can run on the processor, and the processor executes the computer The program implements the steps of the above method.

An embodiment of the present disclosure provides a storage medium, where a computer program is stored in the storage medium, wherein the computer program is configured to execute the above method when running.

The communication bus mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI for short) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA for short) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the above electronic device and other devices.

The memory may include random access memory (Random Access Memory, RAM for short), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. In some embodiments, the memory may also be at least one storage device located remotely from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit (CentralProcessingUnit, referred to as CPU), a network processor (NetworkProcessor, referred to as NP), etc.; may also be a digital signal processor (DigitalSignalProcessing, referred to as DSP), application-specific integrated circuit ( ApplicationSpecificIntegratedCircuit, referred to as ASIC), field programmable gate array (Field-ProgrammableGateArray, referred to as FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present disclosure result in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. A computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, Solid State Disk (SSD)), among others.

It should be noted that, in this document, relational terms such as "first" and "second" etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is no such actual relationship or sequence between entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or device that includes the element.

Any description of a process or method in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing a specified logical function or step of the process , and the scope of the preferred embodiments of the present disclosure includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present disclosure pertain.

The above are only specific embodiments of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Thus, the present disclosure is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

An antenna structure comprising:

At least two feed points (1) are installed in the middle frame (2) of the mobile terminal, and radio frequency modules (3) are communicatively connected to the outside;

At least one conductor antenna (4), both ends are provided with magnetic poles (5) with different magnetic properties, and are communicatively connected to one of the feed points (1) through the magnetic poles (5);

At least one energizing coil (6), mounted between the two said feed points (1), with a control module (7) communicatively connected to the outside, is arranged to change the current direction of the energizing coil (6), so that the The conductor antenna (4) is disconnected from the current feed point (1) and moved to communicate with the target feed point (1).
The antenna structure according to claim 1, wherein the feed point (1) and the side wall of the middle frame (2) of the mobile terminal form a moving cavity for the conductor antenna (4) to move.
The antenna structure according to claim 1, wherein at least two of the feed points (1) are installed in the same side of the middle frame (2) of the mobile terminal.
The antenna structure according to claim 1, wherein the feeding points (1) and the energizing coils (6) are provided in a plurality, and the plurality of the feeding points (1) and the energizing coils (6) are installed in the mobile Inside the four sides of the middle frame (2) of the terminal.
The antenna structure according to claim 4, wherein one of the conductor antennas (4) is respectively movably connected to the four sides of the middle frame (2) of the mobile terminal.
The antenna structure according to claim 1, wherein an antenna track (8) is further provided in the middle frame (2) of the mobile terminal, and the conductor antenna (4) is movably connected in the antenna track (8).
A feed point conversion method, using the antenna structure according to any one of claims 1-6, the method comprising:

Detecting feedback signal strengths of at least two feed points (1) set on the mobile terminal;

If it is detected that the feedback signal strength of the feed point (1) connected to the conductor antenna (4) is less than the preset feedback signal strength, the feed point (1) with a strength greater than or equal to the preset feedback signal strength is determined as the target feed point (1);

The current direction of the energized coil (6) is changed by the control module (7), so that the conductor antenna (4) is disconnected from the current feed point (1) and moved to communicate with the target feed point (1).
The feed point conversion method according to claim 7, wherein the current direction of the energized coil (6) is changed by the control module (7), so that the conductor antenna (4) is disconnected from the current feed point (1) , and after moving to the step of communicating and connecting with the target feed point (1), the method further includes:

If it is detected that the conductor antenna (4) is separated from the energization coil (6), the control module (7) changes the current direction of the energization coil (6) again.
A mobile terminal, comprising: the antenna structure according to any one of claims 1-6.
A storage medium in which a computer program is stored, wherein the computer program is configured to execute the method of any one of claims 7 to 8 when run.