CN112909495A - Mobile terminal and switching method of antenna system - Google Patents
Mobile terminal and switching method of antenna system Download PDFInfo
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- CN112909495A CN112909495A CN201911225702.9A CN201911225702A CN112909495A CN 112909495 A CN112909495 A CN 112909495A CN 201911225702 A CN201911225702 A CN 201911225702A CN 112909495 A CN112909495 A CN 112909495A
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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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
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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
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
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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
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
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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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention provides a mobile terminal and a switching method of an antenna system, wherein the antenna system of the mobile terminal comprises a basic antenna, a millimeter wave antenna and a switch unit; antenna feed points of the basic antenna and the millimeter wave antenna are arranged on a metal frame of the mobile terminal; the antenna feed points of the millimeter wave antenna are arranged according to a preset arrangement mode to form an array antenna feed point; the basic antenna and the millimeter wave antenna are both connected with the switch unit, and the switch unit is used for controlling the connection state of the antenna feed points of the basic antenna and the millimeter wave antenna so as to tune the antenna system. The mobile terminal and the switching method of the antenna system provided by the invention can make full use of the metal frame of the mobile terminal to reduce the space occupied by the millimeter wave antenna in the mobile terminal, thereby improving the space utilization rate of the mobile terminal and facilitating the development of the mobile terminal towards miniaturization.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a mobile terminal and a method for switching an antenna system.
Background
Generally, mobile terminals are provided with an antenna system to implement a communication function of the mobile terminal. The millimeter wave antenna is widely used in mobile terminals because of its good beam forming, so as to improve the communication effect of the mobile terminals.
However, the millimeter wave antenna generally exists in an array form, and occupies a larger independent space in the mobile terminal, so that the space of the mobile terminal itself is more tense, and the space utilization rate of the mobile terminal itself is reduced.
Disclosure of Invention
In view of the above, the present invention is directed to a mobile terminal and a switching method of an antenna system, so as to reduce an occupied space area of a millimeter wave antenna in the mobile terminal, thereby improving a resource utilization rate of the mobile terminal.
In a first aspect, an embodiment of the present invention provides a mobile terminal, including: a base antenna, a millimeter wave antenna, and a switch unit; antenna feed points of the basic antenna and the millimeter wave antenna are arranged on a metal frame of the mobile terminal; wherein the basic antenna is an antenna satisfying 2G, 3G and 4G communication.
The number of the antenna feed points of the millimeter wave antenna is at least two, and the antenna feed points of the millimeter wave antenna are arranged according to a preset arrangement mode to form array antenna feed points; the basic antenna and the millimeter wave antenna are connected with the switch unit, and the switch unit is used for controlling the connection state of the antenna feed points of the basic antenna and the millimeter wave antenna so as to tune the antenna system.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where a slot corresponding to an antenna feed point of the millimeter wave antenna is disposed on the metal frame, so as to form a slot antenna corresponding to the millimeter wave antenna.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where a groove is disposed at a position of the metal frame corresponding to an antenna feed point of the millimeter wave antenna, the antenna feed point of the millimeter wave antenna is disposed at the groove, and the grooves are disposed according to a preset arrangement manner.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the switch unit is a switch array; the switch array comprises a plurality of change-over switches respectively connected with antenna feed points of the basic antenna and the millimeter wave antenna; wherein the switch is connected to the metal frame.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where each of the plurality of switches included in the switch array is a tuning switch.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the mobile terminal further includes a processor and a transceiver unit; the switch unit of the antenna system is connected with the transceiver unit, and the transceiver unit is connected to the processor.
With reference to the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the mobile terminal further includes a phase shifter, where the phase shifter is disposed between the transceiver unit and the switch unit, and is configured to adjust a phase of the millimeter wave antenna, so as to control a scanning angle of the millimeter wave antenna.
With reference to the fifth possible implementation manner of the first aspect, the embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the transceiver unit is an RF front-end transceiver.
In a second aspect, an embodiment of the present invention further provides a method for switching an antenna system, where the method is applied to the mobile terminal in the first aspect, and the method includes: monitoring the network environment where the mobile terminal is currently located; and triggering a switch unit of an antenna system of the mobile terminal according to the network environment so as to tune the antenna system through the switch unit.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a mobile terminal and a switching method of an antenna system, wherein the antenna system of the mobile terminal comprises a basic antenna, a millimeter wave antenna and a switch unit; the antenna feed points of the basic antenna and the millimeter wave antenna are arranged on a metal frame of the mobile terminal, a plurality of antenna feed points of the millimeter wave antenna are arranged, and the antenna feed points of the millimeter wave antenna are arranged according to a preset arrangement mode to form an array antenna feed point; basic antenna and millimeter wave antenna all are connected with the switch element, in order to control the connection status of the antenna feed point of basic antenna and millimeter wave antenna through the switch element, in order to tune antenna system, tuning process through antenna system, can realize the mode that basic antenna and millimeter wave antenna communicate simultaneously, and, the mode that sets up the antenna feed point of basic antenna and millimeter wave antenna at mobile terminal's metal frame can make full use of mobile terminal's metal frame, in order to reduce the space that the millimeter wave antenna took up at mobile terminal inside, thereby mobile terminal's space utilization has been improved, be convenient for mobile terminal to miniaturization development.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 2 is a front view of an appearance of a metal frame according to an embodiment of the present invention;
fig. 3 is a top view of an appearance of a metal bezel according to an embodiment of the present invention;
fig. 4 is an external view of a metal frame according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a switch unit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating simulation results according to an embodiment of the present invention;
fig. 9 is a directional diagram of an antenna feed point array of a millimeter wave antenna according to an embodiment of the present invention;
FIG. 10 is a diagram illustrating another simulation result according to an embodiment of the present invention;
FIG. 11 is a diagram illustrating another simulation result according to an embodiment of the present invention;
fig. 12 is a flowchart of a switching method of an antenna system according to an embodiment of the present invention.
Icon:
1-a mobile terminal; 10-an antenna system; 101-a base antenna; 102-millimeter wave antenna; 103-a switching unit; 104-a slot antenna; 20-a metal frame; 21-a breakpoint; 22-antenna feed point of millimeter wave antenna; 23-antenna feed point of the basic antenna; 1031-a changeover switch; 1032-a switch array; 30-a processor; 40-a transceiver unit; 50-phase shifter.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but 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.
Currently, existing mobile terminals (such as mobile phones, notebooks, tablet computers, etc.) are all provided with an antenna system, so as to receive and transmit electromagnetic waves through the antenna system, thereby implementing a communication function of the mobile terminal. The conventional antenna system mainly satisfies the communication of 2G (2-Generation wireless telephone technology, second-Generation mobile phone communication technology), 3G (3rd-Generation, third-Generation mobile phone communication technology) and 4G (the 4th Generation mobile communication technology, fourth-Generation mobile communication technology), and as people demand higher and higher communication quality, the millimeter wave is also used for communication of mobile terminals.
Millimeter waves are one kind of electromagnetic waves and have wider communication bandwidth, but the wavelength frequency of the millimeter waves is higher, and the loss during transmission is larger, so in practical application, millimeter wave antennas must exist in a mobile terminal in an array form, most of common millimeter wave arrays of terminals are 1-dimensional or 2-dimensional array antennas, and most of millimeter wave arrays occupy independent space in the mobile terminal, so that the space of other structures in the mobile terminal is reduced, and the waste of space resources of the mobile terminal is caused.
Accordingly, embodiments of the present invention provide a mobile terminal and a method for switching an antenna system, which can effectively alleviate the above problems.
To facilitate understanding of the embodiment, a detailed description is first given of a mobile terminal according to an embodiment of the present invention.
In an embodiment of the present invention, a mobile terminal is provided, and fig. 1 illustrates a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, as shown in fig. 1, where the mobile terminal 1 is provided with an antenna system 10, and the antenna system of the mobile terminal includes: a base antenna 101, a millimeter wave antenna 102, and a switch unit 103;
wherein, the antenna feed points of the basic antenna and the millimeter wave antenna are arranged on the metal frame 20 of the mobile terminal; the number of the antenna feed points of the millimeter wave antennas is at least two, and the antenna feed points of the at least two millimeter wave antennas are arranged according to a preset arrangement mode to form an array antenna feed point; the basic antenna and the millimeter wave antenna are both connected with the switch unit, and the switch unit is used for controlling the connection state of the antenna feed points of the basic antenna and the millimeter wave antenna so as to tune the antenna system.
In a specific implementation, the basic antenna is an antenna which satisfies 2G, 3G and 4G communication; the millimeter wave antenna is a key technology in 5G (5th generation mobile networks) communication. Therefore, the connection state of the antenna feed points of the basic antenna and the millimeter wave antenna is controlled through the switch unit, and the antenna system of the mobile terminal is tuned, so that the mode that the antenna and the millimeter wave antenna normally work at the same time can be realized, and the communication function of the mobile terminal is effectively improved.
According to the mobile terminal provided by the embodiment of the invention, the antenna system comprises a basic antenna, a millimeter wave antenna and a switch unit; the antenna feed points of the basic antenna and the millimeter wave antenna are arranged on a metal frame of the mobile terminal, the number of the antenna feed points of the millimeter wave antenna is at least two, and the antenna feed points of the millimeter wave antenna are arranged according to a preset arrangement mode to form an array antenna feed point; basic antenna and millimeter wave antenna all are connected with the switch element, in order to control the connection status of the antenna feed point of basic antenna and millimeter wave antenna through the switch element, in order to tune antenna system, tuning process through antenna system, can realize the mode that basic antenna and millimeter wave antenna communicate simultaneously, and, the mode that sets up the antenna feed point of basic antenna and millimeter wave antenna at mobile terminal's metal frame can make full use of mobile terminal's metal frame, in order to reduce the space that the millimeter wave antenna took up at mobile terminal inside, thereby mobile terminal's space utilization has been improved, be convenient for mobile terminal to miniaturization development.
In practical applications, a front view of a possible appearance of a metal frame in an embodiment of the present invention is shown in fig. 2, where a breakpoint 21 is disposed on the metal frame, and the breakpoint can enhance a communication signal of an antenna system in a mobile terminal to ensure that the entire mobile terminal is not completely enclosed by metal, so as to ensure that the communication signal is not shielded.
Furthermore, a hole-digging proactive lens on the screen is further arranged on the metal frame, so that the mobile terminal can achieve a shooting function through the hole-digging proactive lens on the screen, in addition, through holes corresponding to function keys such as a volume key and a power key are further arranged on the metal frame, wherein the volume key is used for achieving volume adjustment in the mobile terminal, the power key is used for controlling the working state of the mobile terminal, namely, the mobile terminal is turned on or turned off, further, the metal frame can further comprise through holes corresponding to other components, and the through holes can be specifically set according to actual use conditions, which is not limited in the embodiment of the invention.
Further, in practical application, a slot corresponding to an antenna feed point of the millimeter wave antenna is disposed on the metal frame to form a slot antenna corresponding to the millimeter wave antenna.
In particular, fig. 3 shows a top view of a possible appearance of a metal bezel. As shown in fig. 3, a gap corresponding to an antenna feed point of the millimeter wave antenna is disposed on the metal frame to form a gap antenna 104 corresponding to the millimeter wave antenna, wherein the gap is formed by removing metal from the metal frame, and the removed metal is filled with plastic, and the communication signal strength of the gap antenna corresponding to the millimeter wave antenna can also be enhanced by filling the gap with plastic.
In practical applications, the slot antenna corresponding to the millimeter wave antenna includes, but is not limited to, a rectangle, and may also have a certain inclination angle, and may be set according to actual requirements. In addition, the number of slot antennas may also be set according to actual requirements, and for convenience of understanding, a 1 × 9 slot antenna array is taken as an example here to illustrate, where the size of each unit of the 1 × 9 slot antenna array may be designed according to a specific waveband, for example, if the millimeter wave antenna selects a frequency band around a frequency of 30GHz, and the 1 × 9 slot antenna array is set to be rectangular, the size of each unit of the 1 × 9 slot antenna array in the long side direction may be set to be about 3mm, the size of each unit of the 1 × 9 slot antenna array in the short side direction may be adjusted according to the structure of the metal frame, and the distance between each array unit may be set to be about 5mm, so that a 1 × 9 slot antenna corresponding to the millimeter wave antenna may be. According to the mobile terminal provided by the embodiment of the invention, the millimeter wave antenna is arranged on the metal frame, so that the occupied space of the millimeter wave antenna in the mobile terminal can be reduced, and the position space of other structures in the mobile terminal can not be influenced, and the resource utilization rate of the mobile terminal is structurally improved.
In addition, an antenna feed point of a basic antenna is further arranged on the metal frame, and fig. 4 shows a possible appearance internal view of the metal frame provided by the embodiment of the present invention, as shown in fig. 4, on the metal frame, in addition to a slot antenna corresponding to the millimeter wave antenna and an antenna feed point 22 of the millimeter wave antenna, an antenna feed point 23 of the basic antenna, that is, an antenna feed point of an antenna satisfying 2G, 3G, and 4G communications is further included, so that the antenna system of the mobile terminal realizes a mode of simultaneous communications of 2G, 3G, and 4G and millimeter wave antennas by controlling the connection state of the antenna feed point of the millimeter wave antenna and the antenna feed point of the antenna satisfying 2G, 3G, and 4G communications through the switch unit, thereby satisfying various requirements of users, and improving user experience.
Furthermore, a groove is formed in the position, corresponding to the antenna feed point of the millimeter wave antenna, of the metal frame, the antenna feed point of the millimeter wave antenna is arranged at the position of the groove, and the groove is arranged according to a preset arrangement mode.
Specifically, in order to meet the communication requirement of the mobile terminal, the number of the grooves is generally consistent with the number of the antenna feed points of the millimeter wave antenna, and the grooves are arranged according to a preset arrangement mode, that is, the specific arrangement mode of the grooves on the metal frame is consistent with the arrangement mode of the antenna feed points of the millimeter wave antenna, so that the millimeter wave antenna can receive and send electromagnetic waves conveniently, and the communication function of the antenna system is realized. In addition, the positions corresponding to the antenna feed points of the 2G, 3G and 4G antennas on the metal frame are also provided with grooves, the grooves are used for setting the antenna feed points of the 2G, 3G and 4G antennas, further the communication function of the 2G, 3G and 4G antennas is realized, and the mobile terminal can structurally realize the function of simultaneous communication of the 2G, 3G and 4G antennas and the millimeter wave antenna, so that the multiple communication requirements of a user are met, and the experience of the user is improved.
In practical application, the switch unit is a switch array; the switch array comprises a plurality of change-over switches respectively connected with antenna feed points of a basic antenna and a millimeter wave antenna, wherein each change-over switch is connected to a metal frame.
Fig. 5 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention, and fig. 5 is a schematic structural diagram, where a switch 1031 connected to an antenna feed point of a base antenna in a switch array and a switch array 1032 connected to an antenna feed point of a millimeter wave antenna are shown, where the switch array includes a plurality of switches connected to slot antenna arrays corresponding to the millimeter wave antennas, where the number of switches of the switch array should be consistent with the number of elements of the slot antenna arrays, and each element of the slot antenna arrays is connected to a switch, so that a connection state of the antenna feed points of the base antenna and the millimeter wave antennas is controlled by the switch unit, and tuning of an antenna system is achieved.
In practical application, the plurality of switches included in the switch array are tuning switches, the tuning switches may include devices such as capacitors, resistors and inductors, and different working combination modes of the capacitors and the inductors are obtained by controlling on-off states of different branches in the tuning switches, so as to tune the antenna system. For convenience of understanding, in fig. 5, for example, the switch 1031 is connected to the metal frame and is connected to the antenna feed point of the base antenna, so that the switch 1031 may be used to perform impedance tuning on the 2G, 3G, and 4G antennas, that is, when the capacitors and the inductors in the switch 1031 form different operation combinations, the switch 1031 may be in different states, so that the 2G, 3G, and 4G antennas correspond to different frequency band states.
However, in practical applications, the antenna system of the mobile terminal cannot cover all frequency band states only by adjusting the impedance through the switch 1031, and therefore, in the embodiment of the present invention, the switch array 1032 may also be used to perform aperture tuning on the metal frame. Specifically, the switch array 1032 includes 8 switches as an example for description, where the switch array 1032 may be 8 two-way single-pole double-throw switches or four-way single-pole single-throw switches, and which type of switch is specifically selected may be selected according to specific requirements in practical applications, which is not limited by the present invention.
When the switch array 1032 is a single-pole double-throw switch, the switch array 1032 can have at least 8 states, and thus, the switch array 1032 can perform aperture tuning on the metal frame in at least 8 states; if switch array 1032 described above uses single pole single throw switches, switch array 1032 can have more states to aperture tune the metal bezel.
In addition, because the millimeter wave antenna and the 2G, 3G, and 4G antennas are commonly disposed on the metal frame, in the embodiment of the present invention, a plurality of switches in the switch array 1032 are not simultaneously connected to a capacitor or an inductor, that is, only a part of the switches in the switch array 1032 is connected to the capacitor or the inductor, at this time, the switch array 1032 can still ensure normal communication of the millimeter wave antenna, and at this time, the 2G, 3G, and 4G antennas are also in a communication state through the switch 1031.
Furthermore, in order to implement the communication function of the antenna system, the mobile terminal in the embodiment of the present invention further includes a processor and a transceiver unit; the switch unit of the antenna system is connected with the transceiver unit, and the transceiver unit is connected to the processor.
Specifically, fig. 6 shows a schematic structural diagram of another mobile terminal according to an embodiment of the present invention, and as shown in fig. 6, the mobile terminal includes a processor 30, a transceiver unit 40, a switch unit, a metal frame, and a slot antenna array corresponding to a millimeter-wave antenna disposed on the metal frame. Wherein, the receiving and dispatching unit is used for receiving or sending out the electromagnetic wave, the switch element is used for controlling the scanning angle of the slot antenna array that the millimeter wave antenna corresponds, and carry out aperture tuning to the metal frame, the metal frame and the slot antenna array and the 2G that set up the millimeter wave antenna on the metal frame and correspond, 3G and 4G antenna also constitute communication signal's receiving and dispatching antenna structure, thereby realize mobile terminal's antenna system and realize 2G, 3G and 4G antenna and millimeter wave antenna communicate simultaneously, and realize the tuning effect, thereby customer's multiple demand has been satisfied, customer's experience degree has been improved.
In addition, if all the switches in the switch array 1032 are not connected to a capacitor or an inductor, that is, all the switches in the switch array 1032 are in an operating state, at this time, if the electromagnetic signals received by the antenna feed points corresponding to the millimeter wave antennas have the same phase, the radiation direction of the millimeter wave antennas is the normal direction of the slot antenna array corresponding to the millimeter wave antennas. In practical applications, if the slot antenna array corresponding to the millimeter wave antenna has other scanning directions, the phase shifting may be performed by controlling the phase shifter to change the phase of the electromagnetic signal at the antenna feed point corresponding to the millimeter wave antenna, or by controlling the states of the plurality of switches in the switch array.
In addition, the transceiver unit is a Radio Frequency (RF) front-end transceiver, and the RF front-end transceiver can receive and transmit communication signals of 2G, 3G, and 4G antennas and millimeter wave antennas. Therefore, the RF front-end transceiver is connected to the switch 1031 connected to the antenna feed point of the base antenna and the switch array 1032 connected to the antenna feed point of the millimeter wave antenna in the switch unit, so as to receive and transmit the communication signals of the 2G, 3G, and 4G antennas and the millimeter wave antenna, thereby implementing that the mobile terminal satisfies the communication functions of the 2G, 3G, and 4G antennas and the millimeter wave antenna, and implements the functions of simultaneous communication of the 2G, 3G, and 4G antennas and the millimeter wave antenna, thereby satisfying various communication requirements of users, and improving the experience of users.
Specifically, fig. 7 also shows a phase shifter 50, which is disposed between the RF front-end transceiver and the switch unit, where one end of the phase shifter is connected to the RF front-end transceiver, and the other end of the phase shifter is connected to a switch array 1032 of the switch unit, which is connected to an antenna feed point of the millimeter wave antenna, and since the phase shifter can adjust the phase of the electromagnetic wave, in this embodiment of the present invention, the phase shifter can control the scanning angle of the slot antenna array corresponding to the millimeter wave antenna, thereby implementing the communication function of the millimeter wave antenna in the antenna system.
Specifically, in fig. 7, the switch 1031 connected to the antenna feed point of the base antenna and the switch array 1032 connected to the antenna feed point of the millimeter wave antenna are used to tune the base antenna and the millimeter wave antenna, respectively, and in general, the switch 1031 is used to perform impedance tuning on the base antenna, and since the switch 1031 may have a plurality of states, the base antenna for 2, 3, 4G communication may correspond to different band (frequency band) states when the switch 1031 is in different states. But adjusting the impedance by switching the switch 1031 alone does not cover all band states, and the switch array 1032 can be used to aperture tune the bezel. The switch array 1032 may be formed by 8 two-way single-pole single-throw switches or four-way single-pole single-throw switches, and may be selected according to specific use requirements. If a single pole double throw switch is used, one of the two switches can be connected to the phase shifter, the other can be connected to a matching circuit (capacitor or inductor), and switch array 1032 can have 8 switches, so that at least 8 states can be used for aperture tuning of the bezel, and more tuning states can be used if a four-way single pole single throw switch is used.
Because the millimeter wave antenna and the basic antenna share the frame, the basic antenna can work, and the normal work of the millimeter wave antenna array can be ensured, so that the 8-path switches can not be in a connection matching state at the same time, and the 0-2 switches are in the connection matching state in compromise, and the millimeter antenna can not work normally. If the switch is not in a matching state, the antenna feed point of 8 millimeter wave antennas works, and if the feed signals reaching the antenna feed point array unit have the same phase, the radiation direction is the normal direction of the millimeter array. If the millimeter wave antenna is required to have other scanning directions, on one hand, the millimeter wave antenna can be realized by controlling the phase shifter to change the phase of a feed signal of the millimeter wave antenna, and on the other hand, the millimeter wave antenna can also be realized by controlling the on-off of the switch array. Because the beam scanning can be realized through the two modes, the antenna system of the mobile terminal in the embodiment of the invention has more scanning angles and ranges.
In practical use, the number of the antenna feed points and the switch arrays can be selected according to the situation, and is not limited to 8. For convenience of understanding, fig. 8 shows a schematic diagram of a simulation result, where the simulation result in fig. 8 is obtained by performing simulation with an antenna feed point being a 1 × 6 array, and at this time, the corresponding switch array is also composed of 6 switches, and the millimeter wave frequency band is selected to be 28 GHz. Where fig. 8 is the S11 parameter of the millimeter wave array unit, fig. 9 is the directional diagram of the antenna feed array of the millimeter wave antenna, and it can be seen from fig. 9 that the directional diagram of the antenna feed array of the millimeter wave antenna is upward, which is more favorable for receiving signals.
Further, when the metal frame of the mobile terminal is used as the antenna of the basic antenna frequency band, that is, as the antenna of the 2G, 3G and 4GHz frequency bands, the simulation result is shown in fig. 10 and 11, where fig. 10 shows the S11 parameters of the low frequency band and the part of the medium-high frequency band, and fig. 11 shows the S11 parameters of the part of the medium-high frequency band, as can be seen from fig. 10 and 11, along with the application of the 5gs ub-6GHz frequency band, the antenna system of the mobile terminal including the basic antenna and the millimeter wave antenna in the embodiment of the present invention can satisfy the requirements of the 2G, 3G, 4G and sub-GHz frequency bands simultaneously under the condition of satisfying the millimeter wave antenna.
On the basis of the foregoing embodiment, an embodiment of the present invention further provides a method for switching an antenna system, where the method for switching an antenna system is applied to a mobile terminal in the foregoing embodiment, and fig. 12 shows a flowchart of the method for switching an antenna system, and as shown in fig. 12, the method includes:
step S102, monitoring the current network environment of the mobile terminal;
and step S104, triggering a switch unit of the antenna system of the mobile terminal according to the network environment so as to tune the antenna system through the switch unit.
The switching method of the antenna system provided by the embodiment of the invention has the same technical characteristics as the mobile terminal provided by the embodiment, so the same technical problems can be solved, and the same technical effects can be achieved.
The embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the steps of the method for switching the antenna system provided in the foregoing embodiment are implemented.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for switching an antenna system according to the above embodiment are executed.
The computer program product provided in the embodiment of the present invention includes a computer-readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment, which is not described herein again.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the mobile terminal described above may refer to the corresponding process in the foregoing embodiment, and is not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A mobile terminal, characterized in that an antenna system of the mobile terminal comprises: a base antenna, a millimeter wave antenna, and a switch unit;
antenna feed points of the basic antenna and the millimeter wave antenna are arranged on a metal frame of the mobile terminal;
wherein the basic antenna is an antenna satisfying 2G, 3G and 4G communication; the number of the antenna feed points of the millimeter wave antenna is at least two, and the antenna feed points of the millimeter wave antenna are arranged according to a preset arrangement mode to form array antenna feed points;
the basic antenna and the millimeter wave antenna are connected with the switch unit, and the switch unit is used for controlling the connection state of the antenna feed points of the basic antenna and the millimeter wave antenna so as to tune the antenna system.
2. The mobile terminal according to claim 1, wherein a slot corresponding to the antenna feed point of the millimeter wave antenna is disposed on the metal frame to form a slot antenna corresponding to the millimeter wave antenna.
3. The mobile terminal according to claim 1, wherein a groove is provided at a position of the metal frame corresponding to the antenna feed point of the millimeter wave antenna, the antenna feed point of the millimeter wave antenna is provided at a position of the groove, and the groove is provided according to the preset arrangement manner.
4. The mobile terminal of claim 1, wherein the switch unit is a switch array;
the switch array comprises a plurality of change-over switches respectively connected with antenna feed points of the basic antenna and the millimeter wave antenna;
wherein the switch is connected to the metal frame.
5. The mobile terminal of claim 4, wherein the switch array comprises a plurality of switches that are tuning switches.
6. The mobile terminal of claim 1, wherein the mobile terminal further comprises a processor and a transceiver unit; the switch unit of the antenna system is connected with the transceiver unit, and the transceiver unit is connected to the processor.
7. The mobile terminal of claim 6, further comprising a phase shifter disposed between the transceiver unit and the switch unit for adjusting a phase of the millimeter wave antenna to control a scanning angle of the millimeter wave antenna.
8. The mobile terminal of claim 6, wherein the transceiver unit is an RF front-end transceiver.
9. A method for switching an antenna system, the method being applied to a mobile terminal according to any one of claims 1 to 8, the method comprising:
monitoring the network environment where the mobile terminal is currently located;
and triggering a switch unit of an antenna system of the mobile terminal according to the network environment so as to tune the antenna system through the switch unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911225702.9A CN112909495B (en) | 2019-12-03 | 2019-12-03 | Mobile terminal and switching method of antenna system |
| PCT/CN2020/133640 WO2021110104A1 (en) | 2019-12-03 | 2020-12-03 | Mobile terminal and antenna system switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911225702.9A CN112909495B (en) | 2019-12-03 | 2019-12-03 | Mobile terminal and switching method of antenna system |
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| CN112909495A true CN112909495A (en) | 2021-06-04 |
| CN112909495B CN112909495B (en) | 2022-05-17 |
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| CN201911225702.9A Active CN112909495B (en) | 2019-12-03 | 2019-12-03 | Mobile terminal and switching method of antenna system |
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| WO (1) | WO2021110104A1 (en) |
Cited By (1)
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| WO2024091164A1 (en) * | 2022-10-28 | 2024-05-02 | Beammwave Ab | An analog hardware interface for connecting transceiver front ends to an fr1 transceiver, and related wireless device, control unit, method, computer program product, non-transitory computer-readable storage medium, and chips |
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| WO2021110104A1 (en) | 2021-06-10 |
| CN112909495B (en) | 2022-05-17 |
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