CN108493617A - A kind of antenna system and communication terminal - Google Patents
A kind of antenna system and communication terminal Download PDFInfo
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- CN108493617A CN108493617A CN201810510090.7A CN201810510090A CN108493617A CN 108493617 A CN108493617 A CN 108493617A CN 201810510090 A CN201810510090 A CN 201810510090A CN 108493617 A CN108493617 A CN 108493617A
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- Prior art keywords
- metal shell
- switch circuit
- antenna system
- circuit
- gap
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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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Abstract
The invention discloses a kind of antenna systems, include the first metal shell and the second metal shell being isolated by gap, first switch circuit, second switch circuit, feed circuit, controller, the first input end of first switch circuit and the second input terminal of second switch circuit are arranged on the first metal shell, first output end of first switch circuit and the second output terminal of second switch circuit are connect with the earth point on the second metal shell, the output end of feed circuit is connect with the power feed inputs being arranged on the first metal shell, power feed inputs are less than power feed inputs at a distance from parallel with gap between the second input terminal at a distance from parallel with gap between first input end, controller is connect with first switch circuit and second switch circuit respectively, break-make for controlling first switch circuit and second switch circuit.The invention also discloses a kind of communication terminals can reach the realization that same leaky antenna covers multiband by implementing said program.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of antenna system and communication terminal.
Background technology
With the continuous development of metal-like mobile phone technique, the mobile terminal of metal material is due to its unique texture and light
Pool is gradually pursued by consumer, oneself designs standard configuration through becoming high-end type, and starts quickly to popularize to middle-end type.Meanwhile by
Cannot be satisfied demand of the consumer to Character Design in the homogeneity of current metal edge frame design, whole metal chassis material mobile phone oneself
Through the Research Emphasis as each mobile terminal Jing Pin producers.The development trend of mobile terminal before comprehensive, outside whole metal chassis material
Oneself is seen through becoming the most important attraction of product, and the development trend of all products of entire industry.
The Antenna Design of existing mobile terminal may refer to shown in Fig. 1, and a seam has been opened on the metal shell in Fig. 1
Gap is respectively set in the both sides in this gap there are one distributing point 11 and feedback place 12, and distributing point is used to provide signal for antenna
Source presents place and that is to say earth point, a switching circuit (not shown in figure 1) is additionally provided between this gap, by adjusting
Impedance on switching circuit can control Antenna Operation over different frequencies, due to being provided only with one between the gap in Fig. 1
Switching circuit, in order to form current loop, this switching circuit will necessarily be constantly in closed state, so existing mobile terminal
The current path of upper antenna system is fixed, and therefore, the covered band limits of antenna institute is smaller.
Invention content
Current path in the antenna system that the technical problem to be solved in the present invention is in existing terminal is fixed, and is caused
The antenna system the smaller problem of covered band limits provide a kind of antenna system and logical for the technical problem
Believe terminal.
In order to solve the above technical problems, the present invention provides a kind of antenna system, the antenna system includes：Pass through gap phase
The first metal shell and the second metal shell of isolation, first switch circuit, second switch circuit, feed circuit, and control
Device；
Second input terminal of the first input end of the first switch circuit and the second switch circuit is arranged described
On first metal shell, the second output terminal and institute of the first output end of the first switch circuit and the second switch circuit
State the earth point connection on the second metal shell；
The output end of the feed circuit is connect with the power feed inputs being arranged on first metal shell, the feedback
Electrical input be less than at a distance from parallel with the gap between the first input end power feed inputs with it is described
At a distance from parallel with the gap between second input terminal；
The controller is connect with the first switch circuit and the second switch circuit respectively, for controlling described
The break-make of one switching circuit and the second switch circuit.
Optionally, the equal length of first metal shell and second metal shell, and outside first metal
The equal length of the length in the gap being isolated between shell and second metal shell and first metal shell.
Optionally, dielectric is filled in the gap that first metal shell and second metal shell are isolated.
Optionally, the dielectric is made of at least one of plastic cement, glass, ceramics.
Optionally, the first switch circuit include it is sequentially connected first control switch and the first adjustable impedance circuit,
The second switch circuit includes sequentially connected second control switch and the second adjustable impedance circuit；The controller is for controlling
It makes the first control switch and second control switches on-off.
Optionally, first adjustable impedance circuit includes the first controllable impedance, and second adjustable impedance circuit includes
Second controllable impedance.
Optionally, the first input end, second input terminal and the power feed inputs are located at and second gold medal
Belong to the slot edge on the first metal-back of shell phase pair.
Optionally, the first input end and second input terminal are located at first metal shell relative to vertical
On the straight symmetrical two edges of axis.
Optionally, the antenna system further includes spread spectrum capacitance, outside one end of the spread spectrum capacitance and first metal
The spread spectrum capacitance connection end of shell connects, and the other end of the spread spectrum capacitance connects with the earth point on second metal shell
It connects, the spread spectrum capacitance connection end is less than the spread spectrum at a distance from parallel with the gap between second input terminal
Capacitance connection end is at a distance from parallel with the gap between the first input end.
Further, the present invention also provides a kind of communication terminal, the communication terminal includes as described above arbitrary
A kind of antenna system.
Advantageous effect
The present invention provides a kind of antenna system and communication terminal, includes the first metal shell being isolated by gap and the
Two metal shells, first switch circuit, second switch circuit, feed circuit, controller, the first input end of first switch circuit
It is arranged on the first metal shell with the second input terminal of second switch circuit, the first output end of first switch circuit and second
The second output terminal of switching circuit is connect with the earth point on the second metal shell, and the output end of feed circuit and setting are first
Power feed inputs connection on metal shell, power feed inputs are less than at a distance from parallel with gap between first input end
Power feed inputs are at a distance from parallel with gap between the second input terminal, controller respectively with first switch circuit and second
Switching circuit connects, the break-make for controlling first switch circuit and second switch circuit.Since controller can control first
The break-make of switching circuit and second switch circuit, so the current path in the present invention in antenna system is can to change
, compared with the fixed scheme of existing circuit paths, scheme provided by the invention can adjust by adjusting current path
The working frequency of antenna.So as to the covered band limits of opposite increase antenna system institute, reach same leaky antenna pair
The realization of multiband covering.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the schematic diagram of Antenna Design in the prior art；
The hardware architecture diagram of Fig. 2 optional mobile terminals of each embodiment one to realize the present invention；
Fig. 3 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 2；
Fig. 4 is the structural schematic diagram for the antenna system that first embodiment of the invention provides；
Fig. 5 is that schematic diagram is arranged in the position of each endpoint in the antenna system that second embodiment of the invention provides；
Fig. 6 is the electrical block diagram for the antenna system that second embodiment of the invention provides；
Fig. 7 is the shell schematic diagram for the communication terminal that third embodiment of the invention provides.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, using for indicating that the suffix of such as " module ", " component " or " unit " of element is only
The explanation for being conducive to the present invention, itself does not have a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, tablet
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
The shiftings such as media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Referring to Fig. 2, a kind of hardware architecture diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Moving terminal 100 may include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Either combine certain components or different components arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 2：
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by radio communication.Above-mentioned wireless communication can use any communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to be omitted in the range for the essence for not changing invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, it is that radio frequency unit 101 or WiFi module 102 are received or
The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
The relevant audio output of specific function executed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loud speaker, buzzer etc..
A/V input units 104 are for receiving audio or video signal.A/V input units 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained by image capture apparatus (such as camera) in image capture mode carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case of telephone calling model.
Microphone 1042 can implement various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify the application of mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family is arranged and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect user on it or neighbouring touch operation
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating lever etc.
It is one or more, do not limit herein specifically.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be to realize the function that outputs and inputs of mobile terminal as two independent components, but in certain embodiments, can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For the transmission data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can include mainly storing program area
And storage data field, wherein storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Reason device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
Although Fig. 2 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Embodiment to facilitate the understanding of the present invention, below to the communications network system that is based on of mobile terminal of the present invention into
Row description.
Referring to Fig. 3, Fig. 3 is a kind of communications network system Organization Chart provided in an embodiment of the present invention, the communication network system
System is the LTE system of universal mobile communications technology, which includes communicating UE (User Equipment, the use of connection successively
Family equipment) (the lands Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers
Such as the function of home location register (not shown) etc, and some are preserved in relation to use such as service features, data rates
The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201
Address is distributed and other functions, and PCRF2036 is strategy and the charging control strategic decision-making of business data flow and IP bearing resources
Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art it is to be understood that the present invention not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And the following new network system etc., it does not limit herein.
Based on above-mentioned mobile terminal hardware configuration and communications network system, each embodiment of the method for the present invention is proposed.
First embodiment
It is fixed to solve the current path in the antenna system in existing terminal, causes antenna system institute covered
The smaller problem of band limits, it is shown in Figure 4 the present embodiment provides a kind of new antenna system, the present embodiment provides
Antenna system include the first metal shell 41 and the second metal shell 42 being isolated by gap, first switch circuit 43,
Second switch circuit 44, feed circuit 45 and controller (being not shown in Fig. 4).
The first input end of first switch circuit 43 and the second input terminal of second switch circuit 44 are arranged in the first metal
On shell 41, the first output end of first switch circuit 43 and the second output terminal of second switch circuit 44 and the second metal shell
Earth point connection on 42.It should be noted that first switch circuit 43 the first output end and second switch circuit 44
Two output ends can be connected on the same earth point on the second metal shell 42, naturally it is also possible to be connected to the second metal shell
On different earth points on 42, this requires ground connection is arranged on at least two different positions on the second metal shell 42
Point.It should be noted that earth point on the second metal shell 42 can by with PCB (the Printed Circuit in terminal
Board, printed circuit board) earth point on plate connects to be grounded.It is connect including first on the second metal shell 42 in Fig. 4
Place and the second earth point, the two earth points can be by connecting to be grounded with the earth point on pcb board, wherein
First output end of first switch circuit 43 is connect with the first earth point, and the second output terminal of second switch circuit 44 connects with second
Place connects.Feed circuit 45 in the present embodiment is used to provide signal source for antenna system, the output end of the feed circuit 45
It is connect with the power feed inputs being arranged on the first metal shell 41, the first of the power feed inputs and first switch circuit 43 is defeated
Enter end between it is parallel with gap at a distance from be less than between the power feed inputs and the second input terminal of second switch circuit 44
With gap it is parallel at a distance from.So interstitial water that ought be between the first metal shell 41 and the second metal shell 42 is usually, then feed
Horizontal distance between input terminal and the first input end of first switch circuit 43 should be opened less than the power feed inputs with second
Horizontal distance between second input terminal on powered-down road 44.
Further include controller (being not shown in Fig. 4) in antenna system in the present embodiment, respectively with first switch circuit 43
It is connected with second switch circuit 44, the break-make for controlling first switch circuit 43 and second switch circuit 44, needs to illustrate
It is the break-make that can remove control first switch circuit 43 and second switch circuit 44 in the present embodiment by the same controller,
It can go to control by different controllers, for example first switch circuit 43 is connect with the first controller, the first controller control the
The break-make of one switching circuit 43, second switch circuit 44 are connect with second controller, and second controller controls second switch circuit
44 break-make.
It should be noted that the length of the first metal shell 41 and the second metal shell 42 in the present embodiment can phase
Deng, and the length in the gap being isolated between the first metal shell 41 and the second metal shell 42 can be with the first metal shell 41
Equal length, that is to say the length as shown in figure 4, the length in the gap and the first metal shell 41 and the second metal shell 42
Xiang Qi.It should be understood, however, that in some embodiments, the length in the gap can be less than the length of the first metal shell 41,
In this way, being equivalent to that a gap is arranged on a metal shell, which is divided into two parts by the metal.
In the present embodiment, can have with filling dielectric among the gap of the first metal shell 41 and the second metal shell 42
Body, which can be made of at least one of plastic cement, glass, ceramics, certainly, and in some embodiments, the gap
In can also fill other kinds of non-conducting material.
First switch circuit 43 in the present embodiment includes sequentially connected first control switch and the first adjustable impedance electricity
Road, second switch circuit 44 include sequentially connected second control switch and the second adjustable impedance circuit, and controller is for controlling
First control switch and the second control switch on-off.It is closed for example, controller can control the first control switch, the second control
Switch disconnects, in this way, electric current flows through in antenna system active path i.e. power feed inputs and first switch circuit 43
Path between first input end, similarly, controller can control the second control switch and be closed, and the first control switch disconnects, this
Sample, the second input terminal of the active path i.e. power feed inputs that electric current flows through in antenna system and second switch circuit 44 it
Between path, since power feed inputs are at a distance from parallel with gap between the first input end of first switch circuit 43
Less than power feed inputs at a distance from parallel with gap between the second input terminal of second switch circuit 44, so control
First control switch is closed, the state that the second control switch disconnects, and is disconnected with control the first control switch, the second control switch closes
The state of conjunction is compared, and the electric current that the electric current active path length in the former antenna system is less than in the antenna system of the latter is effective
Path length, and the effect length of the active path of electric current the working frequency of antenna, so passing through control the in this programme
One control switch and the second control switch on-off the switching for the frequency that can realize Antenna Operation.
It should be noted that the first control switch is closed, when the second control switch is off, control
Device processed can be adjusted the impedance value of the first adjustable impedance circuit, so that Antenna Operation is under corresponding frequency；Similarly,
It is off in the first control switch, in the closure state, controller can resistance trimming to second for the second control switch
The impedance value of reactive circuit is adjusted, so that Antenna Operation is under the frequency of needs.
The first control switch in the present embodiment can be arbitrary (disconnected on and off with the second control switch
Open) switch of function.
The first adjustable impedance circuit in the present embodiment may include the first controllable impedance, and the second adjustable impedance circuit can be with
It including the second controllable impedance, of courses, the adjustable induction reactance value range of the first controllable impedance and the second controllable impedance can be by developing
Personnel need the frequency range covered to pre-set according to the antenna.It should be understood that in some embodiments, first can resistance trimming
It can also include some electronic devices with blocked impedance value in reactive circuit and the second adjustable impedance circuit, for example can also wrap
Include the resistance with fixed resistance value.
Preferably, the first input end of first switch circuit 43, the second input terminal and feed of second switch circuit 44
Input terminal can be located at the slot edge on the first metal-back opposite with the second metal-back, easily facilitate the assessment of antenna in this way
Debugging, is also more convenient for the detection and repair of antenna, in other embodiments, power feed inputs can also pass through a company
On any position on the first metal-back of fitting feed-in, which can be shrapnel or thimble.
It is more so as to cover to ensure that the length of two kinds of current paths in antenna system has obvious difference
Frequency range, first input end and the second input terminal in the present embodiment can be located at the first metal shell 41 relative to vertical
On the symmetrical two edges of axis.It is worth noting that, edge described here is not absolute edge, it is assumed that side here
Edge includes first edge and second edge, if first input end apart from first edge position within the scope of pre-determined distance, and
Two input terminals apart from second edge position within a preset range, so that it may to think that first input end and the second input terminal are located at
First metal shell 41 is relative on the symmetrical two edges of vertical central axis.Here preset range should be smaller distance
Numerical value, for example can be 0.5 centimetre.
Preferably, the antenna system in the present embodiment can also include spread spectrum capacitance, spread one end and the first gold medal of capacitance
Belonging to the spread spectrum capacitance connection end connection of shell 41, the other end for spreading capacitance is connect with the earth point on the second metal shell 42,
It spreads capacitance connection end and is less than spread spectrum capacitance connection end and first defeated at a distance from parallel with gap between the second input terminal
Enter end between it is parallel with gap at a distance from.It should be noted that the spread spectrum capacitance in the present embodiment can be one adjustable
Capacitance, the controller in the present embodiment can also be controlled to realize tune to the capacitance size for spreading the accessed circuit of capacitance
Humorous matching makes antenna be owned by larger radiant power in any frequency, to expand the covered frequency range of antenna institute, promotes day
The performance of linear system system.
Antenna system provided by the invention can control first switch circuit 43 and second switch circuit 44 by controller
Break-make, be adjusted so as to the path to the current loop in antenna system, pass through change antenna system in electric current return
The switching to the working frequency of antenna may be implemented in the path on road, in addition, the present invention passes through in the first metal shell 41 and second
Setting spread spectrum capacitance between metal shell 42 can also further promote the covered frequency range of antenna institute, complete so as to realize
Ball is logical.
Second embodiment
The scheme provided in order to better understand the present invention, the present embodiment provides a kind of antenna systems, including：Pass through gap
The first metal shell and the second metal shell being isolated, first switch circuit, second switch circuit, feed circuit, spread spectrum electricity
Appearance and controller.
The length of the first metal shell in the present embodiment, the length of the second metal shell and the equal length in gap.
And dielectric is filled in the gap, which can be made of at least one of plastic cement, glass, ceramics, certainly, one
In a little embodiments, other kinds of non-conducting material can also be filled in the gap.
The present embodiment is specifically introduced so that gap is horizontal gap as an example.
The first input end of first switch circuit in the present embodiment and the second input terminal of second switch circuit be located at
Slot edge on the first opposite metal shell of second metal shell, the first output end and second switch of first switch circuit
The second output terminal of circuit respectively on the second metal shell the first earth point and the second earth point connect, the first earth point and
Second earth point with the earth point on the pcb board in terminal by connecting to be grounded.
Feed circuit in the present embodiment includes output and ground, the output end of feed circuit and the first metal shell
On power feed inputs connection, the ground terminal of feed circuit 45 can connect with the third earth point on the second metal shell, this
In power feed inputs be located at the slot edge on the first metal shell opposite with the second metal shell, on the second metal shell
Third earth point can also be by connecting to be grounded with the earth point on the pcb board in terminal.In addition, feed input
It holds and is less than the of the power feed inputs and second switch circuit the horizontal distance between the first input end of first switch circuit
Horizontal distance between two input terminals.
One end of spread spectrum capacitance in the present embodiment is connect with the spread spectrum capacitance connection end of the first metal shell, spreads capacitance
The other end connect with the 4th earth point on the second metal shell, the spread spectrum capacitance connection end in the present embodiment be located at and second
Slot edge on the first opposite metal shell of metal shell, third earth point on the second metal shell can also by with
Earth point on pcb board in terminal connects to be grounded.In addition, between spread spectrum capacitance connection end and the second input terminal
Horizontal distance is less than the horizontal distance between spread spectrum capacitance connection end and first input end.
Shown in Figure 5, Fig. 5 shows the first input end a of the first switch circuit on the first metal shell 51, the
The position of second input terminal b of two switching circuits, power feed inputs c and spread spectrum capacitance connection end d, on the second metal shell 52
The first earth point A, the second earth point B, third earth point C and the 4th earth point D position.On second metal shell 52
First earth point A, the second earth point B, third earth point C and the 4th earth point D are located at the gap on the second metal shell 52
Edge.
Controller in the present embodiment is connect with first switch circuit and second switch circuit respectively, is opened for controlling first
The break-make on powered-down road and second switch circuit, it should be noted that control can be gone in the present embodiment by the same controller
The break-make of one switching circuit and second switch circuit can also be gone to control by different controllers, for example, first switch circuit with
First controller connects, and the first controller controls the break-make of first switch circuit, and second switch circuit is connect with second controller,
Second controller controls the break-make of second switch circuit.
The circuit structure of antenna system may refer to shown in Fig. 6 in the present embodiment, including feed circuit 53, spread capacitance
54, first switch circuit 55 and second switch circuit 56.
Wherein, feed circuit 53 is for providing signal source, including first resistor 531, second resistance 532 and the first electricity
Hold 533.One end of first resistor 531 is connect with feed S, other end ground connection, specifically, can access on the second metal shell 42
Third earth point C, one end of the first capacitance 533 is connected with first resistor 531 and second resistance 532, other end ground connection, specifically
, the third earth point C of the second metal shell 42, one end and the first resistor 531 and first of second resistance 532 can also be accessed
Capacitance 533 is connected, and the other end of other end access power feed inputs c namely second resistance 532 referred herein that is to say feed
The output end of circuit 53.
First switch circuit 55 includes sequentially connected first control switch 551 and the first controllable impedance 552, second switch
Circuit 56 includes sequentially connected second control switch 561 and the second controllable impedance 562, and controller is opened for controlling the first control
It closes 551 and second and controls the break-make of switch 561.
Antenna system provided by the invention can control the first control switch and second by controller and control the logical of switch
It is disconnected, it is adjusted so as to the path to the current loop in antenna system, by changing current loop in antenna system
The switching to the working frequency of antenna may be implemented in path, in addition, the present invention passes through outside the first metal shell and the second metal
Setting spread spectrum capacitance between shell can also further promote the covered frequency range of antenna institute, so as to realize Global Link.
3rd embodiment
The present embodiment provides a kind of communication terminals, including any one antenna system in the various embodiments described above, need
It is bright, may include at least two antenna systems described above on the communication terminal in the present embodiment, and the two antennas
System can share one piece of metal shell, for example, may refer to shown in Fig. 7.The communication terminal includes the first metal shell 71, the
Two metal shells 72 and third metal shell 73, wherein the first metal shell 71 and the outer 72 shell phases isolation of the second metal, the
Two metal shells 72 and third metal shell 73 are isolated, and the first metal shell 71 and the second metal shell 72 form an antenna
System, the second metal shell 72 and third metal shell 73 form an antenna system, and the concrete structure of antenna system can be as
Structure in above-described embodiment, which is not described herein again.
It should be noted that metal shell can not also be shared between each antenna system on communication terminal.
Communication terminal provided by the invention can control the logical of first switch circuit and second switch circuit by controller
It is disconnected, it is adjusted so as to the path to the current loop in antenna system, by changing current loop in antenna system
The switching to the working frequency of antenna may be implemented in path, in addition, the present invention passes through outside the first metal shell and the second metal
Setting spread spectrum capacitance between shell can also further promote the covered frequency range of antenna institute, so as to realize Global Link.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of antenna system, which is characterized in that the antenna system includes：The first metal shell for being isolated by gap and
Second metal shell, first switch circuit, second switch circuit, feed circuit and controller；
Second input terminal of the first input end of the first switch circuit and the second switch circuit is arranged described first
On metal shell, the second output terminal of the first output end of the first switch circuit and the second switch circuit and described the
Earth point connection on two metal shells；
The output end of the feed circuit is connect with the power feed inputs being arranged on first metal shell, and the feed is defeated
Enter end and is less than the power feed inputs and described second at a distance from parallel with the gap between the first input end
At a distance from parallel with the gap between input terminal；
The controller is connect with the first switch circuit and the second switch circuit respectively, is opened for controlling described first
The break-make on powered-down road and the second switch circuit.
2. antenna system as described in claim 1, which is characterized in that first metal shell and second metal shell
Equal length, and the length in the gap being isolated between first metal shell and second metal shell and described the
The equal length of one metal shell.
3. antenna system as described in claim 1, which is characterized in that first metal shell and second metal shell
Dielectric is filled in the gap being isolated.
4. antenna system as claimed in claim 4, which is characterized in that the dielectric by plastic cement, glass, ceramics at least
One kind is made.
5. antenna system as described in claim 1, which is characterized in that the first switch circuit includes sequentially connected first
Control switch and the first adjustable impedance circuit, the second switch circuit includes sequentially connected second control switch and second can
Resistance trimming reactive circuit；The controller is switched on-off for controlling the first control switch and second control.
6. antenna system as claimed in claim 5, which is characterized in that first adjustable impedance circuit includes the first adjustable electric
Sense, second adjustable impedance circuit include the second controllable impedance.
7. antenna system as described in claim 1, which is characterized in that the first input end, second input terminal and institute
State the slot edge that power feed inputs are located on the first metal-back opposite with second metal-back.
8. antenna system as described in claim 1, which is characterized in that the first input end and second input terminal difference
Positioned at first metal shell relative on the symmetrical two edges of vertical central axis.
9. such as claim 1-8 any one of them antenna systems, which is characterized in that the antenna system further includes spread spectrum electricity
Hold, one end of the spread spectrum capacitance is connect with the spread spectrum capacitance connection end of first metal shell, described to spread the another of capacitance
One end is connect with the earth point on second metal shell, the spread spectrum capacitance connection end and second input terminal it
Between with the gap it is parallel at a distance from be less than it is described spread spectrum capacitance connection end and the first input end between with it is described
The parallel distance in gap.
10. a kind of communication terminal, which is characterized in that the communication terminal includes such as claim 1-9 any one of them antennas
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510090.7A CN108493617A (en) | 2018-05-24 | 2018-05-24 | A kind of antenna system and communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510090.7A CN108493617A (en) | 2018-05-24 | 2018-05-24 | A kind of antenna system and communication terminal |
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|---|---|
| CN108493617A true CN108493617A (en) | 2018-09-04 |
Family
ID=63350738
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810510090.7A Pending CN108493617A (en) | 2018-05-24 | 2018-05-24 | A kind of antenna system and communication terminal |
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| CN111029732A (en) * | 2019-12-31 | 2020-04-17 | 上海摩勤智能技术有限公司 | Antenna device and handheld communication equipment |
| CN112310610A (en) * | 2019-08-02 | 2021-02-02 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
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