CN112436265A - Mobile terminal and antenna control method thereof - Google Patents
Mobile terminal and antenna control method thereof Download PDFInfo
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- CN112436265A CN112436265A CN201910789513.8A CN201910789513A CN112436265A CN 112436265 A CN112436265 A CN 112436265A CN 201910789513 A CN201910789513 A CN 201910789513A CN 112436265 A CN112436265 A CN 112436265A
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- 238000004891 communication Methods 0.000 claims description 9
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- 230000007547 defect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000010267 cellular communication Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
The invention relates to a mobile terminal and an antenna control method thereof. The mobile terminal includes: the first display screen comprises a first screen body and a first shell which is attached to the first screen body, and a first antenna group comprising at least one first antenna is arranged on the first shell; the second display screen and the first display screen can be oppositely arranged in a folding mode, the second display screen comprises a second screen body and a second shell body which is attached to the second screen body, and a second antenna group comprising at least one second antenna is arranged on the second shell body; when the mobile terminal is in a folded state, if a distance value between a first antenna in the first antenna group and a second antenna in the second antenna group is smaller than or equal to a preset distance value, the first antenna couples and feeds power to the second antenna, so that the reconstructed second antenna works in a second target frequency band. The invention can overcome the defect of insufficient antenna bandwidth when the mobile terminal is in a folded state, and meet various use requirements of users on data services of the mobile terminal with a folded screen.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a mobile terminal and an antenna control method thereof.
Background
With the rise and development of the folding screen mobile terminal, the use scenes of the mobile terminal are continuously increased, and the use requirements of users on the data service of the mobile terminal are also continuously increased, namely, the requirements on the use performance of the antenna are higher and higher.
Existing folded screen mobile terminals typically employ conventional Antenna schemes, for example, in the form of IFA (Inverted-F Antenna), PIFA (Planar Inverted-F Antenna), and the like. When the folding screen mobile terminal is unfolded and folded, the use requirements of users are different, the folding screen mobile terminal focuses more on the performance of cellular communication or mobile communication, the unfolding screen mobile terminal focuses more on the experience in the aspect of audio and video, and the folding screen mobile terminal has the defect that although the cellular communication or mobile communication generates resonance in each required frequency band, the bandwidth of a certain frequency band is obviously insufficient, so that the various use requirements of the users on the data service of the folding screen mobile terminal cannot be met.
Disclosure of Invention
The invention aims to provide a mobile terminal and an antenna control method thereof, wherein the mobile terminal can at least improve the antenna performance when a screen is folded.
In one aspect, an embodiment of the present invention provides a mobile terminal, including: the first display screen comprises a first screen body and a first shell which is attached to the first screen body, and a first antenna group comprising at least one first antenna is arranged on the first shell; the second display screen and the first display screen can be oppositely arranged in a folding mode, the second display screen comprises a second screen body and a second shell body which is attached to the second screen body, and a second antenna group comprising at least one second antenna is arranged on the second shell body; when the mobile terminal is in a folded state, if a distance value between a first antenna in the first antenna group and a second antenna in the second antenna group is smaller than or equal to a preset distance value, the first antenna couples and feeds power to the second antenna, so that the reconstructed second antenna works in a second target frequency band.
According to an aspect of the embodiment of the present invention, when the reconstructed second antenna operates in the target frequency band, the first antenna does not operate.
According to an aspect of the embodiment of the present invention, when the reconstructed second antenna operates in the target frequency band, the first antenna operates in the preset frequency band, and the first antenna operating in the preset frequency band and the second antenna operating in the target frequency band do not generate resonance interference.
According to an aspect of an embodiment of the present invention, the first antenna and the second antenna each include: a first switch and a preset matching device; the first end of the first switch is connected with the first antenna or the second antenna, the second end of the first switch is connected with the first end of the preset matching device, and the second end of the preset matching device is grounded; or the first end of the preset matching device is connected with the first antenna or the second antenna, the second end of the preset matching device is connected with the first end of the first switch, and the second end of the first switch is grounded; or, the preset matching devices are connected in parallel, a first end of each preset matching device is connected with the first antenna or the second antenna, a second end of each preset matching device is grounded, and the first switch is arranged between the first antenna or the second antenna and one of the preset matching devices.
According to an aspect of the embodiment of the present invention, the first antenna further includes a second switch, a first end of the second switch is connected to the main board, and a predetermined matching device is connected in series between a second end of the second switch and the first antenna.
According to an aspect of the embodiment of the present invention, when the mobile terminal is in a folded state, if a distance value between a first antenna in the first antenna group and a second antenna in the second antenna group is less than or equal to a preset distance value, the first switch is turned on, the second switch is turned off from the main board, and the first antenna couples and feeds the second antenna, so that the reconstructed second antenna operates in the target frequency band.
According to an aspect of the embodiment of the present invention, the first antenna is a WiFi antenna supporting frequency bands of 2.4GHz to 2.5GHz and 4.8GHz to 5.8GHz, and is disposed at a corner of the first housing.
According to an aspect of the embodiment of the present invention, the second antenna is a communication antenna supporting the frequency bands of 600MHz to 960MHz, 1710MHz to 2700MHz, 3300MHz to 4200MHz, and 4400MHz to 5000MHz, and is disposed at a corner of the second housing.
According to an aspect of the embodiment of the present invention, the mobile terminal further includes an infrared sensor disposed on the first housing or the second housing, and the infrared sensor is configured to detect a relative position between the first display screen and the second display screen to determine whether the mobile terminal is in a folded state.
According to an aspect of the embodiment of the present invention, the mobile terminal further includes a control module, the control module is respectively connected to the first antenna and the second antenna, and when the mobile terminal is in a folded state, the control module controls the first antenna to couple and feed the second antenna, so that the reconstructed second antenna operates in the target frequency band.
On the other hand, an embodiment of the present invention further provides an antenna control method for a mobile terminal as described above, where the antenna control method includes: acquiring the opening and closing state of the mobile terminal; when the mobile terminal is in a folded state, if the distance value between the first antenna and a second antenna in the second antenna group is smaller than or equal to a preset distance value, controlling the first antenna to couple and feed to the second antenna so that the reconstructed second antenna works in a target frequency band.
According to an aspect of the embodiment of the present invention, when it is obtained that the mobile terminal is in a folded state, if a distance value between the first antenna and a second antenna in the second antenna group is smaller than or equal to a preset distance value, controlling the first antenna to couple and feed to the second antenna, so that the reconstructed second antenna operates in a target frequency band, and further including controlling the first antenna not to operate; or, the first antenna is controlled to work in a preset frequency band, wherein the first antenna working in the preset frequency band and the second antenna working in the target frequency band do not generate resonance interference.
According to an aspect of the embodiments of the present invention, acquiring the open/close state of the mobile terminal includes: the relative position between the first display screen and the second display screen is detected through an infrared sensor of the mobile terminal so as to determine whether the mobile terminal is in a folded state.
According to the mobile terminal and the antenna control method thereof provided by the invention, the first antenna is coupled and fed to the second antenna when the mobile terminal is in the folded state, so that the reconstructed second antenna works in the target frequency band, the antenna performance is improved, and various use requirements of a user on data services of the folded screen mobile terminal are met.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a mobile terminal in a semi-unfolded state according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the mobile terminal shown in fig. 1 in a folded state;
FIG. 3 is a diagram illustrating a reflection coefficient versus a transmission frequency before a second antenna is not reconstructed in the mobile terminal shown in FIG. 1;
FIG. 4 is a diagram illustrating a relationship between a reflection coefficient and a transmission frequency after reconstruction of a second antenna in the mobile terminal shown in FIG. 1;
fig. 5 is a schematic circuit configuration diagram of a first antenna of the mobile terminal shown in fig. 1;
fig. 6 is a flowchart of an antenna control method of a mobile terminal according to an embodiment of the present invention.
Wherein:
1-a first switch; 2-a second switch; 3-presetting a matching device;
10-a first display screen; 11-a first screen body; 12-a first housing; 13-a first antenna;
20-a second display screen; 21-a second screen body; 22-a second housing; 23-a second antenna; 30-connecting structure.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For better understanding of the present invention, a mobile terminal and a control method of an antenna thereof according to an embodiment of the present invention are described in detail below with reference to fig. 1 to 6.
Referring to fig. 1 and fig. 2 together, an embodiment of the present invention provides a mobile terminal, which includes: the first display screen 10 and the second display screen 20 can be oppositely arranged in a folding mode.
The first display screen 10 includes a first screen body 11 and a first casing 12 attached to the first screen body 11, and a first antenna group including at least one first antenna 13 is disposed on the first casing 12.
The second display screen 20 includes a second screen body 21 and a second casing 22 attached to the second screen body 21, and a second antenna group including at least one second antenna 23 is disposed on the second casing 22.
When the mobile terminal is in a folded state, if a distance value between the first antenna 13 in the first antenna group and the second antenna 23 in the second antenna group is less than or equal to a preset distance value, the first antenna 13 couples and feeds the second antenna 23, so that the reconstructed second antenna 23 operates in a target frequency band. The preset distance value may be obtained in advance through multiple sets of experimental data, or may be preset according to historical experience, and in some embodiments, the preset distance value may be 1/4 wavelengths at a low frequency.
In the embodiment of the present invention, through the first casing 12 and the second casing 22, the first display 11 attached to the first casing 12 and the second display 21 attached to the second casing 22 can be turned over, so that the first display 10 and the second display 20 are folded or unfolded, that is, the mobile terminal is in a folded state or an unfolded state. A connecting structure 30 is arranged between the first casing 12 and the second casing 22, and the first casing 12 and the second casing 22 are folded and folded through the connecting structure 30, so that the first display screen 10 and the second display screen 20 are folded or unfolded relatively.
Specifically, the connecting structure 30 may be a rotating shaft, i.e., the first housing 12 and the second housing 22 may be connected by the rotating shaft. As shown in fig. 1, when the mobile terminal is in an unfolded state, the first screen body 11 of the first display screen 10 and the second screen body 21 of the second display screen 20 are oriented in the same direction, and the first display screen 10 and the second display screen 20 are unfolded into a complete display screen; when the mobile terminal is in a folded state, as shown in fig. 2, the first panel 11 of the first display 10 and the second panel 21 of the second display 20 may be disposed facing each other or disposed away from each other.
In the embodiment of the present invention, a first antenna set is disposed on the first casing 12, and the first antenna set includes at least one first antenna 13 disposed at a corner of the first casing 12, for example, one, two, or four first antennas 13; a second antenna group is disposed on the second housing 22, and the second antenna group includes at least one second antenna 23, for example, one or two second antennas 23, disposed at a corner of the second housing 22. Therefore, when the mobile terminal is in an unfolded state, the first antenna group or the second antenna group works to meet the use experience in the aspect of audio and video; when the mobile terminal is in a folded state, the first antenna 13 and the second antenna 23 overlap or are adjacent to each other, so that the first antenna 13 can be coupled to feed the second antenna 23, so that the reconstructed second antenna 23 operates in the target frequency band. The reconstructed second antenna 23 can change the working frequency or the radiation direction of the second antenna 23, so that the performance of the second antenna is improved, the user experience is improved, and the data interaction requirements of the user in different states of the mobile terminal are met.
According to the mobile terminal provided by the invention, the first antenna 13 is coupled and fed to the second antenna 23 when the mobile terminal is in a folded state, so that the reconstructed second antenna 23 works in a target frequency band, the antenna performance is improved, and various use requirements of a user on data services of the folded screen mobile terminal are met.
In order to better meet the user experience requirement on the data service, in the embodiment of the present invention, the first antenna set includes four first antennas located at corners of the first housing 12, the second antenna set includes two second antennas located at upper and lower edges of the second housing 22, and when the mobile terminal is in the folded state, one or two first antennas 13 and one second antenna 23 overlap with or are adjacent to each other, so that the first antenna 13 can be coupled to feed the second antenna 23, so that the reconstructed second antenna 23 operates in the target frequency band.
As an optional implementation manner, the first antenna 13 is a WiFi antenna supporting the frequency bands of 2.4GHz to 2.5GHz and 4.8GHz to 5.8GHz, and is disposed at a corner of the first casing 12. The two or more first antennas 13 jointly form a multi-Input multi-Output (MIMO) WiFi antenna, which can improve the throughput of WiFi by a Multiple. Therefore, when the mobile terminal is in an unfolded state, the first antenna set works to meet the use requirement in the aspect of audio and video.
As an optional implementation, the second antenna 23 is a communication antenna supporting the frequency bands of 600MHz to 960MHz, 1710MHz to 2700MHz, 3300MHz to 4200MHz, and 4400MHz to 5000MHz, and is disposed at a corner of the second housing 22. When the mobile terminal is in the folded state, the second antenna 23 is operated, and the user pays more attention to the performance of cellular communication or mobile communication.
Referring to fig. 3, a diagram of the reflection coefficient S11 before reconstruction of the second antenna in the mobile terminal versus the transmission frequency is shown.
As can be seen from FIG. 3, the second antenna 23 generates various resonances in a desired frequency band, where a is a low-frequency 600MHz to 960MHz resonance, b is a medium-frequency 1710MHz to 2600MHz resonance, c is a 5G 3300 to 4200MHz resonance, and d is a 4400 to 5200MHz resonance. Although there is resonance in each frequency band, the bandwidth of the resonance c is obviously insufficient, if the structure of the mobile terminal is more compact, the bandwidth of each resonance is smaller, and the antenna performance of the second antenna 23 is poorer, which cannot meet the use requirement of the user for cellular communication or mobile communication.
Referring to fig. 4, a diagram of the relationship between the reconstructed reflection coefficient S11 and the transmission frequency of the second antenna in the mobile terminal is shown.
As can be seen from fig. 4, the original resonance waveform of the second antenna 23 after reconstruction has small a and d changes, and the resonance of b and c is increased, so that the defect that the second antenna 23 needs to cover multiple frequency bands and has insufficient bandwidth is overcome. Therefore, when the mobile terminal is in a folded state, the reconstructed second antenna 23 enables a user to have a higher-performance wireless communication experience.
In addition, since the first antenna 13 is disposed at the corner of the first casing 12 and the second antenna 23 is disposed at the corner of the second casing 22, an electromagnetic wave energy Absorption ratio (SAR) of the mobile terminal can be reduced, and an influence of electromagnetic radiation of the wireless communication terminal on human health can be reduced.
In the embodiment of the present invention, when the mobile terminal is in the folded state, the reconstructed second antenna 23 operates in the target frequency band, so that the second antenna can perform normal communication or data interaction, and the state of the first antenna 13 can be set to be invalid, so as to avoid interference between the first antenna 13 and the second antenna 23.
Optionally, in some embodiments, when the mobile terminal is in a folded state, the reconstructed second antenna 23 operates in the target frequency band, so that the second antenna can perform normal communication or data interaction, and the state of the first antenna 13 can be set to be inactive, so that the first antenna 13 is in a failure state, thereby further avoiding interference between the first antenna 13 and the second antenna 23, and ensuring the operating performance of the antenna.
In addition, considering that when the first antenna 13 is set to be out of operation, it may only cause the signal of the failed first antenna 13 to be poor, which may cause continuous searching, thereby causing the power consumption of the mobile terminal to be large, in another embodiment of the present invention, when the mobile terminal is in a folded state, if the relative distance value between the first antenna 13 in the first antenna set and the second antenna 23 in the second antenna set is less than or equal to the preset distance value, the first antenna 13 is operated in a preset frequency band, wherein the first antenna 13 operated in the preset frequency band and the second antenna 23 operated in the target frequency band do not generate resonance interference.
Here, the first antenna 13 is in a failure state by operating in a preset frequency band, so that the first antenna 13 and the second antenna 23 do not generate resonance interference, the isolation between the first antenna 13 and the second antenna 23 is ensured to be optimal, and the working performance of the antennas is ensured; in addition, compared with the mode in which the first antenna 13 is set to be inactive, it is possible to avoid the first antenna 13 from being constantly searched for due to a poor signal, thereby reducing power consumption of the mobile terminal. It should be noted that the preset frequency band may be some frequency bands additionally set to disable the antenna so as not to generate resonance interference with the second antenna 23 operating in the target frequency band, or may be an operating frequency band different from the target frequency band on the preset antenna.
Referring to fig. 5, the first antenna 13 and the second antenna 23 in the first antenna group and the second antenna group each include: a first switch 1 and a preset matching device 3. The preset matching device 3 may be a capacitor or an inductor, the preset matching device 3 in the first antenna 13 is configured to control the first antenna 13 to operate in a preset frequency band, and the preset matching device 3 in the second antenna 23 is configured to control the second antenna 23 to operate in a target frequency band. Alternatively, the first antenna 13 or the second antenna 23 may be a metal wire with a wavelength of 1/2, or may be a metal wire with a wavelength of 1/4.
The first antenna 13 and the second antenna 23 may take a variety of structural arrangements. Optionally, a first end of the first switch 1 is connected to the first antenna 13 or the second antenna 23, a second end of the first switch 1 is connected to a first end of the predetermined matching device 3, and a second end of the predetermined matching device 3 is grounded.
Optionally, a first end of the preset matching device 3 is connected to the first antenna 13 or the second antenna 23, a second end of the preset matching device 3 is connected to the first end of the first switch 1, and the second end of the first switch 1 is grounded.
Optionally, a plurality of preset matching devices 3 are connected in parallel, a first end of each preset matching device 3 is connected to the first antenna 13 or the second antenna 23, a second end of each preset matching device 3 is grounded, and the first switch 1 is disposed between the first antenna 13 or the second antenna 23 and one of the preset matching devices 3, as shown in fig. 5.
Further, the first antenna 13 further includes a second switch 2, a first end of the second switch 2 is connected to the main board, and the second end of the second switch 2 is connected in series with the first antenna 13 to form the predetermined matching device 3.
Therefore, when the mobile terminal is in a folded state, if the distance value between the first antenna 13 in the first antenna set and the second antenna 23 in the second antenna set is less than or equal to the preset distance value, the first switch 1 is connected, the second switch 2 is disconnected from the main board, so that the first antenna 13 is in a direct short circuit state, and the first antenna 13 loads the preset matching device 3 to the ground to couple and feed the second antenna 23, so that the reconstructed second antenna 23 works in a target frequency band.
When mobile terminal switched to the expanded state by fold condition, first switch 1 disconnection, second switch 2 and mainboard intercommunication, first antenna 13 work, and the user can have more audio-visual use again and experience.
Further, the mobile terminal further includes an infrared sensor (not shown) disposed on the first casing 12 or the second casing 22 for detecting a relative position between the first display screen 10 and the second display screen 20 to determine whether the mobile terminal is in a folded state.
Further, the mobile terminal further includes a control module (not shown in the figure), the control module is respectively connected to the first antenna 13 and the second antenna 23, and when the mobile terminal is in a folded state, the control module controls the first antenna 13 to couple and feed the second antenna 23, so that the reconstructed second antenna 23 operates in the target frequency band. The control module may be a Modem (Modem).
In the embodiment of the present invention, the states of the first antenna and the second antenna are controlled by the control module, that is, the first antenna 13 is controlled to couple and feed to the second antenna 23, so that the reconstructed second antenna 23 operates in the target frequency band, the requirement of normal communication or data interaction is met, resonance of the first antenna 13 and the second antenna 23 in the same frequency band is avoided, the isolation between the first antenna 13 and the second antenna 23 is improved, and interference between the first antenna 13 and the second antenna 23 is avoided.
Further, the control module may also control the first antenna 13 to be in a failure state, that is, may control the first antenna 13 not to operate or the first antenna 13 to operate in a preset frequency band, so as to further avoid interference between the first antenna 13 and the second antenna 23, and ensure the operating performance of the antenna.
It should be noted that the mobile terminal in the embodiment of the present invention includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
Referring to fig. 6, an embodiment of the present invention further provides an antenna control method of any one of the foregoing mobile terminals, including:
step S1: and acquiring the opening and closing state of the mobile terminal.
The method comprises the steps of obtaining the opening and closing state of the mobile terminal, namely obtaining that the mobile terminal is in an unfolding state or a folding state, so that the antennas in the first antenna group and the second antenna group are set based on the opening and closing state of the mobile terminal in the following, and the working performance of the antennas is ensured.
Step S2: when the mobile terminal is in a folded state, if the distance value between the first antenna 13 and the second antenna 23 in the second antenna group is smaller than or equal to the preset distance value, controlling the first antenna 13 to couple and feed to the second antenna 23, so that the reconstructed second antenna 23 works in the target frequency band.
Setting the antennas in the first antenna group and the second antenna group based on the opening and closing state of the mobile terminal obtained in step S1, specifically, controlling the second antenna 23 with a relative distance value less than or equal to a preset distance value to work in a target frequency band when the mobile terminal is obtained to be in the folded state, thereby improving the isolation between the first antenna 13 and the second antenna 23 and avoiding interference between the two antennas; when the mobile terminal is in the unfolding state, the first antenna 13 in the first antenna group can be controlled to work, the performance of the antenna is improved, the use requirement of a user for a large amount of data interaction in the use process of the mobile terminal in the unfolding state is met, and the use experience of the user is improved.
Further, after step S2, the antenna control method further includes:
step S3: controlling the first antenna not to work; alternatively, the first and second electrodes may be,
step S3': and controlling the first antenna to work in a preset frequency band, wherein the first antenna working in the preset frequency band and the second antenna working in the target frequency band do not generate resonance interference.
In the embodiment of the invention, when the mobile terminal is in the folded state, the first antenna 13 is controlled not to work while the second antenna 23 is controlled to work in the target frequency band, so that the first antenna is in the failure state, the interference between the two antennas can be avoided, and the working performance of the antennas is ensured; or, the first antenna 13 may be controlled to operate in the preset frequency band, so that the first antenna 13 and the second antenna 23 do not generate resonance interference, the isolation between the first antenna 13 and the second antenna is ensured to be optimal, the operating performance of the antennas is ensured, and compared with a mode of controlling the first antenna 13 to not operate, the first antenna 13 can be prevented from being continuously searched due to poor signals, and thus the power consumption of the mobile terminal is reduced.
Further, acquiring the open-close state of the mobile terminal includes: the relative position between the first display 10 and the second display 20 is detected by an infrared sensor of the mobile terminal to determine whether the mobile terminal is in a folded state.
Wherein the infrared sensor can be specifically positioned based on the difference of the relative positioning position between the first display screen 10 and the second display screen 20 when the mobile terminal is in the folded state. For example, if the first display 10 and the second display 20 are disposed facing each other when the mobile terminal is in a folded state, the infrared sensor may be disposed on the same side of the mobile terminal as one of the displays; alternatively, if the first display screen 10 and the second display screen 20 are disposed away from each other when the mobile terminal is in the folded state, the infrared sensor may be disposed on a side of the mobile terminal opposite to one of the display screens. Wherein, detect the relative position state between first display screen 10 and the second display screen 20 through infrared sensor, confirm that mobile terminal is in folded state, can specifically include: detecting a relative position distance value between the first display screen 10 and the second display screen 20 through infrared sensing; and when the relative position distance value is smaller than a preset value, determining that the mobile terminal is in a folded state.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (13)
1. A mobile terminal, comprising:
the first display screen (10) comprises a first screen body (11) and a first shell (12) attached to the first screen body (11), wherein a first antenna group comprising at least one first antenna (13) is arranged on the first shell (12);
the second display screen (20) and the first display screen (10) can be arranged in a relatively folding mode, the second display screen (20) comprises a second screen body (21) and a second shell (22) attached to the second screen body (21), and a second antenna group comprising at least one second antenna (23) is arranged on the second shell (22);
when the mobile terminal is in a folded state, if a distance value between the first antenna (13) in the first antenna group and the second antenna (23) in the second antenna group is smaller than or equal to a preset distance value, the first antenna (13) is coupled and fed to the second antenna (23), so that the reconstructed second antenna (23) works in a target frequency band.
2. The mobile terminal of claim 1, wherein the first antenna (13) does not operate when the reconstructed second antenna (23) operates in the target frequency band.
3. The mobile terminal of claim 1, wherein when the reconstructed second antenna (23) operates in the second target frequency band, the first antenna (13) operates in a predetermined frequency band, and the first antenna (13) operating in the predetermined frequency band does not generate resonance interference with the second antenna (23) operating in the target frequency band.
4. A mobile terminal according to claim 3, characterized in that the first antenna (13) and the second antenna (23) each comprise: a first switch (1) and a preset matching device (3);
wherein a first end of the first switch (1) is connected with the first antenna (13) or the second antenna (23), a second end of the first switch (1) is connected with a first end of the preset matching device (3), and a second end of the preset matching device (3) is grounded;
or a first end of the preset matching device (3) is connected with the first antenna (13) or the second antenna (23), a second end of the preset matching device (3) is connected with a first end of the first switch (1), and a second end of the first switch (1) is grounded;
or, the preset matching devices (3) are connected in parallel, a first end of each preset matching device (3) is connected with the first antenna (13) or the second antenna (23), a second end of each preset matching device (3) is grounded, and the first switch (1) is arranged between the first antenna (13) or the second antenna (23) and one of the preset matching devices (3).
5. The mobile terminal according to claim 4, wherein the first antenna (13) further comprises a second switch (2), a first terminal of the second switch (2) is connected to the main board, and the predetermined matching device (3) is connected in series between a second terminal of the second switch (2) and the first antenna (13).
6. The mobile terminal of claim 5, wherein when the mobile terminal is in a folded state, if a distance value between the first antenna (13) in the first antenna set and the second antenna (23) in the second antenna set is smaller than or equal to a preset distance value, the first switch (1) is turned on, the second switch (2) is turned off from the main board, and the first antenna (13) is coupled to feed the second antenna (23), so that the reconstructed second antenna (23) operates in the target frequency band.
7. The mobile terminal of claim 1, wherein the first antenna (13) is a WiFi antenna supporting 2.4 GHz-2.5 GHz, 4.8 GHz-5.8 GHz, and is disposed at a corner of the first housing (12).
8. The mobile terminal of claim 1, wherein the second antenna (23) is a communication antenna supporting frequency bands of 600MHz to 960MHz, 1710MHz to 2700MHz, 3300MHz to 4200MHz, and 4400MHz to 5000MHz, and is disposed at a corner of the second housing (22).
9. The mobile terminal of claim 1, further comprising an infrared sensor disposed on the first housing (12) or the second housing (22) for detecting a relative position between the first display (10) and the second display (20) to determine whether the mobile terminal is in a folded state.
10. The mobile terminal according to any of claims 1 to 9, further comprising a control module, wherein the control module is respectively connected to the first antenna (13) and the second antenna (23), and when the mobile terminal is in a folded state, the control module controls the first antenna (13) to couple and feed to the second antenna (23), so that the reconstructed second antenna (23) operates in the target frequency band.
11. A method for controlling an antenna of a mobile terminal according to any of claims 1-10, comprising:
acquiring the opening and closing state of the mobile terminal;
when the mobile terminal is acquired to be in a folded state, if the distance value between the first antenna (13) and the second antenna (23) in the second antenna group is smaller than or equal to a preset distance value, the first antenna (13) is controlled to feed electricity to the second antenna (23) in a coupling mode, and the second antenna (23) after reconstruction works in a target frequency band.
12. The antenna control method according to claim 11, wherein when it is obtained that the mobile terminal is in a folded state, if a distance value between the first antenna (13) and the second antenna (23) in the second antenna group is smaller than or equal to a preset distance value, controlling the first antenna (13) to couple and feed to the second antenna (23), so that the reconstructed second antenna (23) operates in a target frequency band, further comprising:
controlling the first antenna to be inoperative; alternatively, the first and second electrodes may be,
and controlling the first antenna to work in a preset frequency band, wherein the first antenna working in the preset frequency band does not generate resonance interference with the second antenna working in the target frequency band.
13. The antenna control method according to claim 11, wherein the obtaining the open/close state of the mobile terminal comprises: detecting a relative position between the first display screen (10) and the second display screen (20) through an infrared sensor of the mobile terminal to determine whether the mobile terminal is in a folded state.
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| CN201910789513.8A CN112436265A (en) | 2019-08-26 | 2019-08-26 | Mobile terminal and antenna control method thereof |
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| CN201910789513.8A CN112436265A (en) | 2019-08-26 | 2019-08-26 | Mobile terminal and antenna control method thereof |
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| CN112436265A true CN112436265A (en) | 2021-03-02 |
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