CN108336483B - Antenna assembly, electronic equipment and antenna switching method - Google Patents
Antenna assembly, electronic equipment and antenna switching method Download PDFInfo
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- CN108336483B CN108336483B CN201810108411.0A CN201810108411A CN108336483B CN 108336483 B CN108336483 B CN 108336483B CN 201810108411 A CN201810108411 A CN 201810108411A CN 108336483 B CN108336483 B CN 108336483B
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- broken joint
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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
- H01Q1/12—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
- 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
- H01Q1/50—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
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
- H04B7/0814—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Support Of Aerials (AREA)
Abstract
The embodiment of the application provides an antenna assembly, electronic equipment and an antenna switching method, wherein the antenna assembly comprises: the metal frame is provided with a first broken joint, a second broken joint and a third broken joint, the radiator comprises a first radiator and a second radiator, the first radiator is arranged between the first broken joint and the second broken joint, and the second radiator is arranged between the second broken joint and the third broken joint; the antenna assembly further comprises a first feed source, a second feed source, a tuning switch and a change-over switch, wherein the first feed source is electrically connected with the first radiating body, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiating body, the other end of the tuning switch is grounded, and the second feed source is electrically connected with the second radiating body; the change-over switch is used for switching the radiation states of the first radiation body and the second radiation body. The antenna performance of the antenna component can be improved.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and particularly, to an antenna assembly, an electronic device, and an antenna switching method.
Background
With the development of network technology and the improvement of the intelligent degree of electronic equipment, users can realize more and more functions such as conversation, chatting, game playing and the like through the electronic equipment.
The user realizes signal transmission through the antenna of the electronic equipment in the conversation and chat processes of the electronic equipment.
Disclosure of Invention
The embodiment of the application provides an antenna assembly, electronic equipment and an antenna switching method, which can improve the antenna performance of the electronic equipment.
An embodiment of the present application provides an antenna assembly, includes: the metal frame is provided with three broken joints, each broken joint comprises a first broken joint, a second broken joint and a third broken joint, each radiator comprises a first radiator and a second radiator, the first radiator is arranged between the first broken joint and the second broken joint, and the second radiator is arranged between the second broken joint and the third broken joint;
the antenna assembly further comprises a first feed source, a second feed source and a tuning switch, the first feed source is electrically connected with the first radiating body, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiating body, the other end of the tuning switch is grounded, and the second feed source is electrically connected with the second radiating body;
the antenna assembly further comprises a selector switch, and the selector switch is used for switching the radiation states of the first radiator and the second radiator.
The embodiment of the application further provides an electronic device, which comprises a circuit board, an antenna assembly and a processor, wherein the circuit board is electrically connected with the antenna assembly, the antenna assembly comprises a metal frame and a radiating body, three broken joints are arranged on the metal frame, the broken joints comprise a first broken joint, a second broken joint and a third broken joint, the radiating body comprises a first radiating body and a second radiating body, the first radiating body is arranged between the first broken joint and the second broken joint, and the second radiating body is arranged between the second broken joint and the third broken joint;
the antenna assembly further comprises a first feed source, a second feed source, a tuning switch and a change-over switch, wherein the first feed source is electrically connected with the first radiating body, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiating body, the other end of the tuning switch is grounded, and the second feed source is electrically connected with the second radiating body;
and the processor controls the change-over switch to switch the radiation states of the first radiation body and the second radiation body.
The embodiment of the application further provides an antenna switching method, which is applied to electronic equipment, wherein the electronic equipment comprises a circuit board, an antenna assembly and a processor, the circuit board is electrically connected with the antenna assembly, the antenna assembly comprises a metal frame and a radiating body, three broken joints are arranged on the metal frame, the broken joints comprise a first broken joint, a second broken joint and a third broken joint, the radiating body comprises a first radiating body and a second radiating body, the first radiating body is arranged between the first broken joint and the second broken joint, and the second radiating body is arranged between the second broken joint and the third broken joint;
the antenna assembly further comprises a first feed source, a second feed source, a tuning switch and a change-over switch, wherein the first feed source is electrically connected with the first radiating body, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiating body, the other end of the tuning switch is grounded, and the second feed source is electrically connected with the second radiating body;
acquiring the signal quality of the first radiator and the second radiator;
and according to the signal quality of the first radiator and the second radiator, the processor controls the change-over switch to switch the radiation states of the first radiator and the second radiator.
The antenna assembly provided by the embodiment of the application comprises a metal frame and a radiator, wherein three broken joints are arranged on the metal frame, the broken joints comprise a first broken joint, a second broken joint and a third broken joint, the radiator comprises a first radiator and a second radiator, the first radiator is arranged between the first broken joint and the second broken joint, and the second radiator is arranged between the second broken joint and the third broken joint; the antenna assembly further comprises a first feed source, a second feed source and a tuning switch, the first feed source is electrically connected with the first radiating body, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiating body, the other end of the tuning switch is grounded, and the second feed source is electrically connected with the second radiating body; the antenna assembly further comprises a selector switch, and the selector switch is used for switching the radiation states of the first radiator and the second radiator. The first feed source, the first radiator, first broken joint, second broken joint and tuning switch form first antenna structure, the adjustable first radiator's of tuning switch radiation frequency channel, the second feed source, second radiator and third broken joint form second antenna structure, first antenna structure and second antenna structure accessible change over switch select first antenna structure to use or second antenna switch uses, or use simultaneously again, for example when one of them antenna structure signal is not good, can switch into another antenna structure to use, carry out more nimble selection antenna structure according to different scenes like this, with the antenna performance who improves the antenna assembly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 3 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 4 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 5 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an antenna assembly provided in an embodiment of the present application.
Fig. 7 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 8 is a schematic diagram of a matching circuit of an antenna assembly according to an embodiment of the present application.
Fig. 9 is a schematic diagram of another matching circuit of an antenna assembly according to an embodiment of the present application.
Fig. 10 is a flowchart illustrating an antenna switching method according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, 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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment of the application provides a display screen assembly and electronic equipment. The details will be described below separately. The display screen assembly can be arranged in the electronic device, and the electronic device can be a smart phone, a tablet computer and the like.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, and fig. 2 is another schematic structural diagram of the electronic device according to the embodiment of the present disclosure. The electronic device 10 may include a cover 11, a display 12, a circuit board 13, a battery 14, a housing 15, a camera 16, and a fingerprint unlock module 17. It should be noted that the electronic device 10 shown in fig. 1 and 2 is not limited to the above, and may include other devices, or does not include the camera 16, or does not include the fingerprint unlocking module 17.
Wherein the cover plate 11 is mounted to the display screen 12 to cover the display screen 12. The cover 1 may be a transparent glass cover so that the display screen transmits light through the cover 11 to display. In some embodiments, the cover plate 11 may be a glass cover plate made of a material such as sapphire.
The housing 15 may include a middle frame 151 and a rear cover 152, the middle frame 151 and the rear cover 152 may be combined with each other to form the housing 15, and the middle frame 151 and the rear cover 152 may form a receiving space to receive the printed circuit board 13, the display 12, the battery 14, and the like. Further, a cover plate 11 may be fixed to the housing 15, and the cover plate 11 and the housing 15 form a closed space to accommodate the printed circuit board 13, the display 12, the battery 14, and the like. In some embodiments, the cover plate 11 is disposed on the middle frame 151, the rear cover 152 is disposed on the middle frame 151, the cover plate 11 and the rear cover 152 are disposed on opposite sides of the middle frame 151, and the cover plate 11 and the rear cover 152 are disposed opposite to each other.
In some embodiments, the housing 15 may be a metal housing, such as a metal such as magnesium alloy, stainless steel, and the like. It should be noted that the material of the housing 15 in the embodiment of the present application is not limited to this, and other manners may also be adopted, such as: the housing 15 may be a plastic housing. Also for example: the housing 15 is a ceramic housing. For another example: the housing 15 may include a plastic part and a metal part, and the housing 15 may be a housing structure in which metal and plastic are matched with each other, specifically, the metal part may be formed first, for example, a magnesium alloy substrate is formed by injection molding, and then plastic is injected on the magnesium alloy substrate to form a plastic substrate, so as to form a complete housing structure.
It should be noted that, the structure of the housing in the embodiment of the present application is not limited to this, for example: the rear cover and the middle frame are integrally formed to form a completed housing 15 structure, which directly has a receiving space for receiving the printed circuit board 13, the display 12, the battery 14, and the like.
The printed circuit board 13 is mounted in the housing 15, the printed circuit board 13 may be a motherboard of the electronic device 10, and one, two or more of the functional components such as the motor, the microphone, the speaker, the earphone interface, the usb interface, the camera 16, the distance sensor, the ambient light sensor, the receiver, and the processor may be integrated on the printed circuit board 13.
In some embodiments, the printed circuit board 13 may be secured within the housing 15. Specifically, the printed circuit board 13 may be screwed to the middle frame 151 by screws, or may be snap-fitted to the middle frame 151. It should be noted that the way that the printed circuit board 13 is specifically fixed to the middle frame 151 in the embodiment of the present application is not limited to this, and other ways, such as a way of fixing by a snap and a screw together, may also be used.
Wherein the battery 14 is mounted in the housing 15, the battery 14 being electrically connected to the printed circuit board 13 for providing power to the electronic device 10. The housing 15 may serve as a battery cover for the battery 14. The case 15 covers the battery 14 to protect the battery 14, and particularly, the rear cover covers the battery 14 to protect the battery 14, reducing damage to the battery 14 due to collision, dropping, and the like of the electronic apparatus 10.
Wherein the display 12 is mounted in the housing 15, and the display 12 is electrically connected to the printed circuit board 13 to form a display surface of the electronic device 10. The display screen 12 may include a display area and a non-display area. The display area may be used to display a screen of the electronic device 10 or provide a user with touch control. The top area of the non-display area is provided with an opening for conducting sound and light, and the bottom of the non-display area can be provided with functional components such as a fingerprint module, a touch key and the like. The cover plate 11 is mounted on the display 12 to cover the display 12, and may form the same display area and non-display area as the display 12 or different display areas and non-display areas.
Note that the structure of the display screen 12 is not limited to this. For example, the display 12 may be a special-shaped display, specifically, please refer to fig. 3, and fig. 3 is another schematic structural diagram of the electronic device according to the embodiment of the present application. The electronic device in fig. 3 differs from the electronic device in fig. 1 in that: the electronic device 20 includes a display 12, a cover 21, a printed circuit board 23, a battery 24, and a housing 25. In which the display screen 12 has a light permeable area 28 formed directly thereon. Specifically, for example: the display screen 12 is provided with a through hole penetrating the display screen 12 in the thickness direction, and the light-permeable area 28 may include the through hole, and the through hole may be provided with functional components such as a front camera, an earphone, a sensor, and the like. For another example: the display screen 12 is provided with non-display areas, which the light permeable areas 28 may comprise. Wherein the cover plate 21 is adapted to the structural arrangement of the display 12. It should be noted that, the housing 25 may refer to the housing 15, the printed circuit board 23 may refer to the printed circuit board 13, and the battery 24 may refer to the battery 14, which are not described in detail herein.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another electronic device according to an embodiment of the present disclosure, where the electronic device in fig. 4 is different from the electronic device in fig. 1 in that: the electronic device 30 in fig. 4 includes a display 12, a cover plate 31, a printed circuit board 33, a battery 34, and a housing 35. The display 12 has a notch 121 at its periphery, and the notch 121 can be used for placing functional components such as a front camera, an earphone, a sensor, etc. The cover plate 31 is suitable for the structural arrangement of the display screen 12, the cover plate 31 may be provided with a large notch such as the notch 121, and the cover plate 31 may cover the notch 121. It should be noted that, the housing 3 may refer to the housing 15, the printed circuit board 33 may refer to the printed circuit board 13, and the battery 34 may refer to the battery 14, which are not described in detail herein.
It should be noted that, in some embodiments, the display 12 may not include the non-display area, but may be configured as a full-screen structure, and the functional components such as the distance sensor and the ambient light sensor may be disposed below the display or at other positions. Specifically, please refer to fig. 5, and fig. 5 is another schematic structural diagram of the electronic device according to the embodiment of the present application. The electronic device 40 includes a display 12, a cover 41, a printed circuit board 43, a battery 44, and a housing 45. Wherein the display 12 is overlaid on the housing 45 without a non-display area. Wherein the cover plate 41 is adapted to the size of the display 12. It should be noted that, the housing 45 may refer to the housing 15, the printed circuit board 43 may refer to the printed circuit board 13, and the battery 44 may refer to the battery 14, which are not described herein again.
In some embodiments, the Display 12 may be a Liquid Crystal Display (LCD) or Organic Light-Emitting Diode (OLED) type Display. In some embodiments, when the display 12 is a liquid crystal display, the electronic device 10 may further include a backlight module, not shown, which can be referred to as a backlight module in the prior art.
In some embodiments, the electronic device 10 may also include an antenna assembly 50 for transceiving signals. The antenna assembly 50 may be mounted to the housing 15, such as to the bezel 151. The antenna assembly 50 may form a fixed connection structure with the middle frame 151, which is defined as an antenna assembly. The following description will be made in detail by taking an antenna assembly as an example.
Referring to fig. 6 to 7, fig. 6 to 7 are schematic structural diagrams of an antenna element 50 according to an embodiment of the present application. The antenna assembly 50 may include a metal substrate, a non-metal substrate, a metal bezel 51, and a radiator.
The metal substrate may be a magnesium alloy substrate, and specifically refer to the middle frame 151 above, which is not described herein again.
The metal frame 51 may be a magnesium alloy frame, and the metal frame 51 may be integrally formed with the metal substrate, for example, by injection molding in a mold in a metal injection molding manner, and then integrally formed in a machining manner, for example, and further fixedly connected in a welding manner. In some embodiments, the metal frame 51 is located at the periphery of the metal substrate.
The periphery of the metal frame 51 includes a first side 511, a second side 512, a third side 513 and a fourth side 514, wherein the first side 511 and the third side 513 are disposed opposite to each other, and the second side 512 and the fourth side 514 are disposed opposite to each other.
The metal frame 51 may have three broken seams 70, or may have four broken seams 70, five broken seams 70, or a plurality of broken seams 70.
In some embodiments, the seams 70 include a first seam 71, a second seam 72, and a third seam 73, and the first seam 71, the second seam 72, and the third seam 73 are disposed on different sides of the metal bezel 51. Of course, the first slit 71, the second slit 72 and the third slit may be provided on the same side.
Specifically, the first broken seam 71 is disposed on the first side 511, the second broken seam 72 is disposed on the second side 512 or the fourth side 514, and the third broken seam 73 is disposed on the third side.
The radiator 60 includes a first radiator 61 and a second radiator 62, and the first radiator 61 and the second radiator 62 may have different shapes of strip structures. The first radiator 611 and the second radiator 62 may have a straight bar structure. Of course, the radiator may also be an arc-shaped strip structure, and the specific shapes of the first radiator 61 and the second radiator 62 are not particularly limited in this embodiment.
In some embodiments, the first radiator 61 is disposed between the first and second breaks 71 and 72, and the second radiator 62 is disposed between the second and third breaks 72 and 73.
In some embodiments, the first radiator 61 may be configured to transmit and receive high frequency signals, and the second radiator 62 may be configured to transmit and receive full-band signals. Of course, the first radiator 61 may also transmit and receive signals of other frequencies.
Wherein, the low frequency signal band is a full frequency signal band of (700- & ltSUB & gt 2690MHz), and the high frequency band is (1710MHz- & ltSUB & gt 2690 MHz).
In practical applications, the first radiator 61 and the second radiator 62 may be used for transmitting and receiving mobile network signals, or may be used for transmitting and receiving Wi-Fi signals, or may be used for transmitting and receiving Bluetooth (BT) signals, or may be used for transmitting and receiving Radio Frequency (RF) signals.
The antenna assembly 50 further includes a first feed 81 and a second feed 82, the first feed 81 is electrically connected to the first radiator 61, and the second feed 82 is electrically connected to the second radiator 62.
A matching circuit 200 is connected between the first feed 81 and the first radiator 61, and the matching circuit 200 is configured to match impedances of the first feed 81 and the first radiator 61.
Referring to fig. 8, in some embodiments, the matching circuit 200 includes a first capacitive element 201, a second capacitive element 202, and a first inductive element 203 and a second inductive element 204, the first feed 81 is sequentially connected in series with the first capacitive element 201, the second capacitive element 202, and the first radiator 61, one end of the first inductive element 203 is connected to a connection point of the first capacitive element 201 and the second capacitive element 202, and the other end is grounded, and one end of the second inductive element 204 is connected to a connection point of the second capacitive element 202 and the first radiator 61, and the other end is grounded.
Specifically, the second inductance element 204 may be a variable inductance element, but may also be a fixed inductance element.
Of course, the matching circuit 200 may also adopt other manners, for example, as shown in fig. 9, the matching circuit 200 includes a third capacitive element 205 and a third inductive element 206, the first feed 81, the third capacitive element 205 and the first radiator 61 are sequentially connected in series, one end of the third inductive element 206 is electrically connected to a connection point of the first feed 81 and the third capacitive element 205, and the other end is grounded.
The matching circuit 200 may include electronic components such as a power amplifier and a filter. The matching circuit 200 may be used to perform power amplification, filtering, and other processing on a wireless signal generated by a connected signal source.
The matching circuit 200 may also adopt various manners, and details of the matching circuit 200 are not described in detail in this embodiment.
The antenna assembly 50 further includes a tuning switch 90, the tuning switch 90 is disposed adjacent to the first break joint 71, and one end of the tuning switch 90 is electrically connected to the first radiator 61, and the other end is grounded. The tuning switch 90 can switch the radiation frequency band of the first radiator 61. So that the first radiator 61 transceives signals of the full frequency band.
The antenna assembly 50 further includes a switch 104, and the switch 104 is used for switching radiation states of the first radiator 61 and the second radiator 62.
The electronic device further includes a processor, and the processor controls the switch 104 to switch the radiation states of the first radiator 61 and the second radiator 62.
The antenna assembly 50 provided by the embodiment of the application includes a metal frame 51 and a radiator, three broken joints are provided on the metal frame 51, the broken joints include a first broken joint 71, a second broken joint 72 and a third broken joint 73, the radiator includes a first radiator 61 and a second radiator 62, the first radiator 61 is disposed between the first broken joint 71 and the second broken joint 72, and the second radiator 62 is disposed between the second broken joint 72 and the third broken joint 73; the antenna assembly 50 further includes a first feed 81, a second feed 82, and a tuning switch 90, where the first feed 81 is electrically connected to the first radiator 61, the tuning switch 90 is disposed adjacent to the first broken seam 71, one end of the tuning switch 90 is electrically connected to the first radiator 61, the other end is grounded, and the second feed 82 is electrically connected to the second radiator 62; the antenna assembly 50 further includes a switch 104, and the switch 104 is used for switching radiation states of the first radiator 61 and the second radiator 62. In the embodiment of the present application, the first feed 81, the first radiator 61, the first broken joint 71, the second broken joint 72, and the tuning switch 90 form a first antenna structure, the tuning switch 90 can adjust a radiation frequency band of the first radiator 61, the second feed 82, the second radiator 62, and the third broken joint 73 form a second antenna structure, the first antenna structure and the second antenna structure can be used by selecting the first antenna structure or the second antenna switch through the switch 104, or used simultaneously, for example, when one of the antenna structures has a poor signal, another antenna structure can be used by switching, so that an antenna structure can be selected more flexibly according to different scenes, and the antenna performance of the antenna assembly 50 can be improved.
Referring to fig. 7, fig. 7 is another schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 10 may further include an earphone interface 101, a USB interface 102, and an audio interface 103, wherein the switch 104 is disposed between the USB interface 102 and the audio interface 103.
Referring to fig. 10, fig. 10 is a schematic flowchart of an antenna switching method according to an embodiment of the present application. The antenna switching method is applied to an electronic device, the electronic device comprises a circuit board, an antenna assembly 50 and a processor, the circuit board is electrically connected with the antenna assembly 50, the antenna assembly 50 comprises a metal frame 51 and a radiator, three broken joints are arranged on the metal frame 51, the broken joints comprise a first broken joint 71, a second broken joint 72 and a third broken joint 73, the radiator comprises a first radiator 61 and a second radiator 62, the first radiator 61 is arranged between the first broken joint 71 and the second broken joint 72, and the second radiator 62 is arranged between the second broken joint 72 and the third broken joint 73;
the antenna assembly 50 further includes a first feed 81, a second feed 82, a tuning switch 90 and a switch 104, where the first feed 81 is electrically connected to the first radiator 61, the tuning switch 90 is disposed adjacent to the first slot 71, one end of the tuning switch 90 is electrically connected to the first radiator 61, the other end of the tuning switch is grounded, and the second feed 82 is electrically connected to the second radiator 62; the method comprises the following steps:
s101, acquiring the signal quality of the first radiator 61 and the second radiator 62;
s102, according to the signal quality of the first radiator 61 and the second radiator 62, the processor controls the switch 104 to switch the radiation states of the first radiator 61 and the second radiator 62.
The Signal quality of the antenna structure may be determined by detecting and acquiring the Signal quality of the first radiator 61 by a detecting device in the electronic device 10, for example, detecting parameters such as Signal to Interference plus Noise ratio sinr (Signal to Interference plus Noise ratio), reference Signal received power rsrp (reference Signal Receiving power), and received Signal Strength indication rssi (received Signal Strength indication) of the first radiator 61 and the second radiator 62, or detecting the stability of the received data of the first radiator 61 and the second radiator 62 to determine the Signal quality of the antenna structure. It is also possible to detect the impedance matching characteristics of the first radiator 61 and the second radiator 62, respectively, and then compare the impedance changes of the different radiators to determine which radiator is blocked.
According to the signal quality of the first radiator 61 and the second radiator 62, the processor controls the switch 104 to switch the radiation state of the first radiator 61 and the second radiator 62.
For example, if the signal quality of the first radiator 61 is good, the switch 104 is controlled to switch to use the first radiator 61, and if the signal quality of the second radiator 62 is good, the switch 104 is controlled to switch to use the second radiator 62, or if the signals of the first radiator 61 and the second radiator 62 are weak, the first radiator 61 and the second radiator 62 are simultaneously started to form copolymerization, so as to enhance the signal strength.
The antenna assembly 50, the electronic device, and the antenna switching method provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the description of the above embodiments is only used to help understand the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (15)
1. An antenna assembly, comprising: the metal frame is provided with three broken joints, each broken joint comprises a first broken joint, a second broken joint and a third broken joint, each radiator comprises a first radiator and a second radiator, the first radiator is arranged between the first broken joint and the second broken joint, and the second radiator is arranged between the second broken joint and the third broken joint;
the antenna assembly further comprises a first feed source, a second feed source and a tuning switch, the first feed source is electrically connected with the first radiating body, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiating body, the other end of the tuning switch is grounded, and the second feed source is electrically connected with the second radiating body;
the antenna assembly further comprises a change-over switch, the change-over switch is arranged on the first radiator and is located between the first feed source and the tuning switch, and the first broken joint, the second broken joint, the third broken joint and the change-over switch divide the metal frame into three mutually independent parts;
the change-over switch is used for controlling the connection and disconnection of the first feed source and the tuning switch, and the tuning switch is used for switching the radiation frequency band of the first radiator so that the first radiator can receive and transmit signals of a full frequency band.
2. An antenna assembly according to claim 1, wherein the first, second and third break are disposed on different sides of the metal bezel.
3. The antenna assembly of claim 2, wherein the metal bezel comprises a first side disposed opposite the third side, a second side disposed opposite the fourth side, wherein the first break is disposed at the first side, wherein the second break is disposed at the second or fourth side, and wherein the third break is disposed at the third side.
4. An antenna assembly according to claim 1, characterized in that a matching circuit is connected between the first feed and the first radiator, the matching circuit being adapted to match the impedance of the first feed and the first radiator.
5. The antenna assembly of claim 4, wherein the matching circuit comprises a first capacitive element, a second capacitive element, and a first inductive element and a second inductive element, wherein the first feed is serially connected to the first capacitive element, the second capacitive element, and the first radiator, and wherein one end of the first inductive element is connected to a connection point of the first capacitive element and the second capacitive element, and the other end of the first inductive element is grounded, and one end of the second inductive element is connected to a connection point of the second capacitive element and the first radiator, and the other end of the second inductive element is grounded.
6. An antenna assembly according to claim 5, characterized in that said second inductive element is a variable inductance.
7. An electronic device is characterized by comprising a circuit board, an antenna assembly and a processor, wherein the circuit board is electrically connected with the antenna assembly, the antenna assembly comprises a metal frame and a radiator, three broken joints are arranged on the metal frame, the broken joints comprise a first broken joint, a second broken joint and a third broken joint, the radiator comprises a first radiator and a second radiator, the first radiator is arranged between the first broken joint and the second broken joint, and the second radiator is arranged between the second broken joint and the third broken joint;
the antenna assembly further comprises a first feed source, a second feed source, a tuning switch and a change-over switch, wherein the first feed source is electrically connected with the first radiator, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiator, the other end of the tuning switch is grounded, the second feed source is electrically connected with the second radiator, the change-over switch is arranged on the first radiator, and the change-over switch is located between the first feed source and the tuning switch;
the first broken joint, the second broken joint, the third broken joint and the change-over switch divide the metal frame into three mutually independent parts;
the processor controls the switch to be connected and disconnected so that the first feed source is connected or disconnected with the tuning switch, and when the switch is connected, the first radiator receives and transmits signals of a full frequency band;
the tuning switch is used for switching the radiation frequency band of the first radiator.
8. An electronic device in accordance with claim 7, further comprising an earphone interface, wherein said second slot is disposed adjacent to said earphone interface.
9. The electronic device according to claim 7, further comprising a USB interface and an audio interface, wherein the switch is disposed between the USB interface and the audio interface.
10. The electronic device of claim 7, wherein the first, second, and third seams are disposed on different sides of the metal bezel.
11. The electronic device according to claim 10, wherein the metal bezel comprises a first side, a second side, a third side, and a fourth side, the first side is disposed opposite to the third side, the second side is disposed opposite to the fourth side, the first fracture is disposed on the first side, the second fracture is disposed on the second side or the fourth side, and the third fracture is disposed on the third side.
12. The electronic device of claim 7, wherein a matching circuit is connected between the first feed and the first radiator, and the matching circuit is configured to match impedances of the first feed and the first radiator.
13. The electronic device according to claim 12, wherein the matching circuit includes a first capacitive element, a second capacitive element, and a first inductive element and a second inductive element, the first feed source is serially connected to the first capacitive element, the second capacitive element, and the first radiator, one end of the first inductive element is connected to a connection point of the first capacitive element and the second capacitive element, and the other end of the first inductive element is grounded, and one end of the second inductive element is connected to a connection point of the second capacitive element and the first radiator, and the other end of the second inductive element is grounded.
14. An electronic device according to claim 13, wherein the second inductive element is a variable inductor.
15. An antenna switching method is applied to an electronic device and is characterized in that the electronic device comprises a circuit board, an antenna assembly and a processor, the circuit board is electrically connected with the antenna assembly, the antenna assembly comprises a metal frame and a radiator, three broken joints are arranged on the metal frame, the broken joints comprise a first broken joint, a second broken joint and a third broken joint, the radiator comprises a first radiator and a second radiator, the first radiator is arranged between the first broken joint and the second broken joint, and the second radiator is arranged between the second broken joint and the third broken joint;
the antenna assembly further comprises a first feed source, a second feed source, a tuning switch and a change-over switch, wherein the first feed source is electrically connected with the first radiator, the tuning switch is arranged adjacent to the first broken joint, one end of the tuning switch is electrically connected with the first radiator, the other end of the tuning switch is grounded, the second feed source is electrically connected with the second radiator, the change-over switch is arranged on the first radiator, and the change-over switch is located between the first feed source and the tuning switch;
the first broken joint, the second broken joint, the third broken joint and the change-over switch divide the metal frame into three mutually independent parts;
the processor controls the change-over switch to connect and disconnect the first radiator and the tuning switch;
when the change-over switch is communicated with the tuning switch, controlling the tuning switch to switch the radiation frequency band of the first radiator;
when the change-over switch is disconnected with the tuning switch, controlling the tuning switch not to work; the tuning switch is used for switching the radiation frequency band of the first radiator.
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| CN201810108411.0A CN108336483B (en) | 2018-02-02 | 2018-02-02 | Antenna assembly, electronic equipment and antenna switching method |
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