CN110416712A - Antenna and terminal based on non-Foster device - Google Patents
Antenna and terminal based on non-Foster device Download PDFInfo
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- CN110416712A CN110416712A CN201910696048.3A CN201910696048A CN110416712A CN 110416712 A CN110416712 A CN 110416712A CN 201910696048 A CN201910696048 A CN 201910696048A CN 110416712 A CN110416712 A CN 110416712A
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- antenna
- minor matters
- foster device
- foster
- floor
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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
-
- 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
-
- 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
Abstract
The embodiment of the present application discloses a kind of antenna and terminal based on non-Foster device, and the antenna based on non-Foster device includes: floor, non-Foster device, antenna minor matters；It wherein, is electrical connection between antenna minor matters, non-Foster device and floor；Relationship between the corresponding wavelength parameter λ of length parameter l and antenna minor matters of antenna minor matters is the λ of l < 0.1；Wherein, wavelength parameter λ is determined as the working frequency range where antenna minor matters.
Description
Technical field
The invention relates to antenna technical field more particularly to a kind of antennas and end based on non-Foster device
End.
Background technique
Antenna is a kind of converter, it is transformed into the guided wave propagated on transmission line (usually free in unbounded medium
Space) in the electromagnetic wave propagated, or carry out opposite transformation.Antenna is used to emit or receive electromagnetic wave in wireless device
Component, be the indispensable critical component of wireless telecommunications system, the quality of antenna performance directly affects the quality of communication.
With the development of terminal technology with the raising of integrated level, the volume of terminal constantly reduces, correspondingly, it is also desirable to
Reduce antenna size by antenna miniaturization.However, the electrical property of antenna and its electric size are closely related, if reducing antenna
Size may have that the beamwidth of antenna can not cover working frequency range, to reduce the working performance of antenna.
Summary of the invention
The embodiment of the present application provides a kind of antenna and terminal based on non-Foster device, can reduce antenna size
When, solve the problems, such as that the beamwidth of antenna can not cover working frequency range, to promote the working performance of antenna.
The technical solution of the embodiment of the present application is achieved in that
The embodiment of the present application provides a kind of antenna based on non-Foster device, the day based on non-Foster device
Line includes: floor, non-Foster device, antenna minor matters；Wherein,
It is electrical connection between the antenna minor matters, the non-Foster device and the floor；
Relationship between the length parameter l of the antenna minor matters and the corresponding wavelength parameter λ of the antenna minor matters is l < 0.1
λ；Wherein, the wavelength parameter λ is determined as the working frequency range where the antenna minor matters.
In the above scheme, the antenna based on non-Foster device further include: feed,
In the above scheme, when antenna includes an antenna minor matters,
The non-Foster device is set between one antenna minor matters and the floor.
In the above scheme, when antenna includes mutiple antennas minor matters,
The non-Foster device is set between the multiple antenna minor matters and the floor.
In the above scheme, when antenna includes mutiple antennas minor matters,
The non-Foster device is set between any two antenna minor matters in the multiple antenna minor matters.
In the above scheme, the antenna based on non-Foster device further include: feeding point, wherein
The distance between the end of the feeding point and the antenna minor matters is defined as the length parameter l.
In the above scheme, the antenna minor matters include hook-type minor matters, broad band low frequency branch, snakelike minor matters and strip minor matters
At least one of.
In the above scheme, coupling gap is provided between any two antenna minor matters in the multiple antenna minor matters.
In the above scheme, the antenna based on non-Foster device further include: printing board PCB plate, wherein
The antenna minor matters, the non-Foster device, the floor, the feed, the coupling gap and described
Feeding point is all set in the pcb board.
In the above scheme, the antenna based on non-Foster device is electronically small antenna.
The embodiment of the present application provides a kind of terminal, and the antenna based on non-Foster device can be set in the terminal,
Wherein, the antenna based on non-Foster device includes: floor, non-Foster device, antenna minor matters；Wherein,
It is electrical connection between the antenna minor matters, the non-Foster device and the floor；
Relationship between the length parameter l of the antenna minor matters and the corresponding wavelength parameter λ of the antenna minor matters is l < 0.1
λ；Wherein, the wavelength parameter λ is determined as the working frequency range where the antenna minor matters.
The embodiment of the present application provides a kind of antenna and terminal based on non-Foster device, based on non-Foster device
Antenna includes: floor, non-Foster device, antenna minor matters；Wherein, it is between antenna minor matters, non-Foster device and floor
Electrical connection；Relationship between the corresponding wavelength parameter λ of length parameter l and antenna minor matters of antenna minor matters is the λ of l < 0.1；Wherein, wave
Long parameter lambda is determined as the working frequency range where antenna minor matters.It can be seen that being based on non-Foster in embodiments herein
In the antenna of device, antenna minor matters, non-Foster device and floor can be electrically connected to each other, by antenna minor matters and floor
Between be arranged non-Foster device adjustment antenna resonance, electronically small antenna is worked in assigned frequency, without depositing
In the defect that can not cover working frequency range, solve the problems, such as that the beamwidth of antenna of traditional capacitance tuning is remote too small, so as to
When reducing antenna size, solves the problems, such as that the beamwidth of antenna can not cover working frequency range, and then promote the working performance of antenna, realize
Micro-miniature terminal antenna.
Detailed description of the invention
Fig. 1 is a kind of composed structure schematic diagram one for antenna based on non-Foster device that the embodiment of the present application proposes；
Fig. 2 is the citation form one of electronically small antenna；
Fig. 3 is the citation form two of electronically small antenna；
Fig. 4 is the citation form three of electronically small antenna；
Fig. 5 is a kind of composed structure schematic diagram two for antenna based on non-Foster device that the embodiment of the present application proposes；
Fig. 6 is a kind of composed structure schematic diagram three for antenna based on non-Foster device that the embodiment of the present application proposes；
Fig. 7 is a kind of composed structure schematic diagram four for antenna based on non-Foster device that the embodiment of the present application proposes；
Fig. 8 is a kind of composed structure schematic diagram five for antenna based on non-Foster device that the embodiment of the present application proposes；
Fig. 9 is a kind of composed structure schematic diagram six for antenna based on non-Foster device that the embodiment of the present application proposes；
Figure 10 traditional capacitance tunes schematic diagram；
Figure 11 is that non-Foster device tunes schematic diagram；
Figure 12 is impedance characteristic schematic diagram；
Figure 13 is actual effect schematic diagram；
Figure 14 is the composed structure schematic diagram for the terminal that the embodiment of the present application proposes.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.It is understood that specific embodiment described herein is used only for explaining related application, rather than to this application
Restriction.It also should be noted that illustrating only part relevant to related application for ease of description, in attached drawing.
Antenna is a kind of converter, it is transformed into the guided wave propagated on transmission line (usually free in unbounded medium
Space) in the electromagnetic wave propagated, or carry out opposite transformation.Antenna is used to emit or receive electromagnetic wave in wireless device
Component.The engineering systems such as radio communication, broadcast, TV, radar, navigation, electronic countermeasure, remote sensing, radio astronomy, all benefits
Information is transmitted with electromagnetic wave, depends on antenna to work.In addition, in terms of transmitting energy with electromagnetic wave, non-signal
Energy radiation be also required to antenna.General antenna all has invertibity, i.e., both can be used as transmitting antenna with common antenna, it is also possible to
Make receiving antenna.The same antenna is identical as transmitting or received fundamental characteristics parameter.Here it is the reciprocal theorems of antenna.
Antenna is the indispensable critical component of wireless telecommunications system, and as a kind of energy transducer, antenna can will be in waveguide
Guided wave be radiated in space, the electromagnetic wave in space can be also converted to the guided wave in waveguide.The quality of antenna performance,
Directly affect the quality of communication.With the development of science and technology, the raising of integrated level, the volume of terminal constantly reduce.
With the rapid development of mobile communication technology, bandwidth broadning is always the direction of terminal antenna development.In view of generation
The communication protocol and division frequency range that boundary various regions use are not quite similar, and to realize global roaming, mobile terminal antenna needs support more
Frequency range covering supports fourth generation mobile communication technology (the 4th Generation mobile under normal circumstances
Communication technology, 4G) terminal antenna generally require covering 698~960MHz, 1710~2690MHz frequency
Section.
With the extensive use of the Advanced Communication Technology such as frequency modulation, spread spectrum, the development of large scale integrated circuit and space technology
With the volume small of electronic device, higher requirements are also raised for miniaturization and system bandwidth to communication equipment.It
Line is converter of the electromagnetic energy by equipment to space as the critical component in communication equipment, and performance quality directly affects
Miniaturization and bandwidth research to the work quality of equipment, therefore to antenna are all the research hotspot in the field all the time.
With the development of terminal technology with the raising of integrated level, the volume of terminal constantly reduces, correspondingly, it is also desirable to
Reduce antenna size by antenna miniaturization.However, the electrical property of antenna and its electric size are closely related, if reducing antenna
Size may have that the beamwidth of antenna can not cover working frequency range, to reduce the working performance of antenna.
Of the existing technology in order to solve the problems, such as, the embodiment of the present application provides a kind of day based on non-Foster device
Line and terminal, in the antenna based on non-Foster device, antenna minor matters, non-Foster device and floor can be electrically connected mutually
It connects, antenna resonance is adjusted by the non-Foster device being arranged between antenna minor matters and floor, so that electronically small antenna can be with work
Make in assigned frequency, working frequency range can not be covered without haveing the defects that, solves the beamwidth of antenna of traditional capacitance tuning
Remote too small problem, so as to solve the problems, such as that the beamwidth of antenna can not cover working frequency range, in turn when reducing antenna size
The working performance of antenna is promoted, realizes micro-miniature terminal antenna.
That is, the beamwidth of antenna tuned using traditional capacitance is smaller for electronically small antenna, work frequency can not be covered
Section, and the antenna based on non-Foster device that the application proposes, it is right to can use non-Foster device frequency response resonance point
The reactance compensation of electronically small antenna is realized in the negative reactance region of side, and then reaches high frequency treatment Broadband Matching, so as to have very much
The covering working frequency range of effect.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.
One embodiment of the application provides a kind of antenna based on non-Foster device, and Fig. 1 is the embodiment of the present application proposition
A kind of antenna based on non-Foster device composed structure schematic diagram one, as shown in Figure 1, in embodiments herein,
Antenna 0 based on non-Foster device may include floor 1, non-Foster device 2 and antenna minor matters 3.
It should be noted that in embodiments herein, floor 1, between non-Foster device 2 and antenna minor matters 3
For electrical connection.
Further, in embodiments herein, the antenna 0 based on non-Foster device may include at least one day
Line minor matters 3.For example, the antenna 0 based on non-Foster device may include first antenna minor matters 31, the second antenna minor matters 32 and
Third antenna minor matters 33.
It should be noted that antenna minor matters 3 may include hook-type minor matters, broad band low frequency branch in embodiments herein
At least one of section, snakelike minor matters and strip minor matters.
Further, in embodiments herein, the antenna 0 based on non-Foster device can be electronically small antenna.Tool
Body, electronically small antenna refer to that full-size is less than the antenna of operation wavelength 1/2 π or 1/10, electronically small antenna generally exist only in it is long,
In, in shortwave and ultrashort wave band.
It should be noted that electronically small antenna is short oscillator, small loop antenna or their group in embodiments herein
It closes.Since full-size is less than 1/2 π or 1/10 of operation wavelength, also referred to as miniature antenna.Here so-called " small ", it is different from
General image, for example, up to hundreds of meters, cover up to a hundred hectares of long-wave antenna and still belong to electronically small antenna, and the microwave that volume is small
It is not but electronically small antenna with millimeter wave antenna.Electronically small antenna generally exists only in long, medium and short wave and ultrashort wave band.
Fig. 2 is the citation form one of electronically small antenna, and Fig. 3 is the citation form two of electronically small antenna, and Fig. 4 is the base of electronically small antenna
This form three, as shown in Figure 2,3, 4, the maximum set size antenna that is much smaller than operation wavelength the most, electronically small antenna generally has three
The basic form of kind, specially short dipole, short monopole and small loop antenna.
Further, in embodiments herein, the length parameter l of the antenna minor matters and the antenna minor matters are corresponding
Wavelength parameter λ between relationship can be the λ of l < 0.1.Wherein, the wavelength parameter λ is as the work where the antenna minor matters
Frequency range determines.That is, under corresponding working frequency range, the length of antenna minor matters is less than 0.1 in embodiments herein
A free space wavelength.
In embodiments herein, further, the concept of non-Foster device is mentioned based on foster's reactance theorem
Out.Specifically, lossless one-port network passive for one, input reactance and susceptance are that the strictly monotone of frequency is passed
Increasing function, the slope that can be mathematically expressed as reactance function X (ω) or susceptance function B (ω) is always positive, i.e.,0 < ω < ∞ or0 < ω < ∞, referred to as Foster reactance are theoretical.Non- Foster device
Input impedance reaction component year frequency increase the trend successively decreased is presented, thus it is theoretical to have violated Foster reactance.Namely
It says, Foster theory is lossless one-port network passive for one, and input reactance and input susceptance are to the oblique of frequency
Rate is always positive, however the impedance for violating Foster theory is also available with special active electric network to realize.This is active
The imaginary part of the impedance of network is successively decreased with frequency, that is, shows as negative inductance and negative capacitance.
In practical applications, ordinary inductor and capacitor are considered ideal inductance and capacitor in low-frequency range, still
With the increase of frequency, due to the increase that parasitic parameter influences, the slope of resistance and reaction component starts to change, and is accompanied by simultaneously
The appearance of resonance point.From the theory of causal system: the cause and effect stable convergence net of any physically realizable linearly invariant
Network, regardless of whether meeting Foster theory, the real and imaginary parts of frequency response are all satisfied a carat Mo-Ke Ruoni relational expression.One
The impedance of a dissipative network varies with frequency in full frequency band, then can also the network be referred to as dispersion.Any one
A actual resistance, capacitor, inductance RLC network can be observed when its reactance or susceptance become zero by circuit elements
Lorentz resonance caused by parasitic parameter in device or circuit, and the impedance frequency response of a non-Foster device is then and commonly
For RLC network on the contrary, inverse Lorentz resonance can be observed in full frequency band, i.e. the dispersion of the resistance of impedance and reactance and common impedance is bent
Line is opposite.Transistor or operational amplifier can be used to realize in non-Foster device.This kind of circuit can be by input
Voltage inversion output, and same phase is kept with input current, the impedance made is negative.
In recent years, the result of study of non-Foster device is shown in microwave regime, non-Foster device can be applied
In miniature antenna or Meta Materials, its high reactance is offset, impedance matching is reached, increases the effect of bandwidth, therefore, further studied non-
Miniaturization of the Foster device frequency characteristic for antenna is of great significance to the working performance for improving antenna.
It should be noted that in embodiments herein, since electronically small antenna has high quality factor, so as to cause band
Compromise between wide and efficiency, correspondingly, the bandwidth of electronically small antenna is very narrow, therefore, can be realized by non-Foster device
The reactance compensation of electronically small antenna.
Further, in embodiments herein, it is based on described Fig. 1, Fig. 5 is a kind of base that the embodiment of the present application proposes
In the composed structure schematic diagram two of the antenna of non-Foster device, as shown in figure 5, being based on non-good fortune in embodiments herein
The antenna 0 of this special device can also include feed 4.
It should be noted that feed 4 is the basic of the antenna 0 based on non-Foster device in embodiments herein
Component part.Specifically, feed 4 can be to be set to penetrating on printed circuit board (Printed Circuit Board, PCB)
Frequency transceiver.It should be noted that feed 4 can be used for providing exciting current for antenna 0, so as to the work of excitation antenna 0
In in the frequency range of needs.
The embodiment of the present application provides a kind of antenna and terminal based on non-Foster device, based on non-Foster device
Antenna includes: floor, non-Foster device, antenna minor matters；Wherein, it is between antenna minor matters, non-Foster device and floor
Electrical connection；Relationship between the corresponding wavelength parameter λ of length parameter l and antenna minor matters of antenna minor matters is the λ of l < 0.1；Wherein, wave
Long parameter lambda is determined as the working frequency range where antenna minor matters.It can be seen that being based on non-Foster in embodiments herein
In the antenna of device, antenna minor matters, non-Foster device and floor can be electrically connected to each other, by antenna minor matters and floor
Between be arranged non-Foster device adjustment antenna resonance, electronically small antenna is worked in assigned frequency, without depositing
In the defect that can not cover working frequency range, solve the problems, such as that the beamwidth of antenna of traditional capacitance tuning is remote too small, so as to
When reducing antenna size, solves the problems, such as that the beamwidth of antenna can not cover working frequency range, and then promote the working performance of antenna, realize
Micro-miniature terminal antenna.
Based on the above embodiment, in another embodiment of the application, since the antenna 0 based on non-Foster device can be with
Including at least one antenna minor matters 3, therefore, for the antenna minor matters 3 of different numbers, floor 1, non-Foster device 2 and day
It may not also be identical for connection type between line minor matters 3.
Further, in embodiments herein, as shown in Figure 5 above, when the antenna 0 based on non-Foster device wraps
When including an antenna minor matters 3, the non-Foster device 2 can be set in one antenna minor matters 3 and the floor 1 it
Between.
Further, in embodiments herein, it is based on described Fig. 1, Fig. 6 is a kind of base that the embodiment of the present application proposes
In the composed structure schematic diagram three of the antenna of non-Foster device, as shown in fig. 6, in embodiments herein, when based on non-
The antenna 0 of Foster device includes mutiple antennas minor matters 3, that is, when including antenna minor matters 31 and antenna minor matters 32, the non-Fox
Special device 2 can be set between the multiple antenna minor matters 3 and the floor 1, i.e., non-Foster device 2 is set to antenna branch
Between section 31, antenna minor matters 32 and the floor 1.
Further, in embodiments herein, it is based on described Fig. 1, Fig. 7 is a kind of base that the embodiment of the present application proposes
In the composed structure schematic diagram four of the antenna of non-Foster device, as shown in fig. 7, in embodiments herein, when based on non-
The antenna 0 of Foster device includes mutiple antennas minor matters 3, for example including antenna minor matters 33, antenna minor matters 34 and antenna minor matters
When 35, the non-Foster device 2 be can be set between any two antenna minor matters in the multiple antenna minor matters 3, example
It is such as set between antenna minor matters 34 and antenna minor matters 35.
In conclusion in embodiments herein, for the antenna 0 based on non-Foster device, non-Foster device 2
Both it can connect between two different antenna minor matters 3, also can connect between antenna minor matters 3 and floor 1, the application is not
Make specific limit.
Further, in embodiments herein, Fig. 8 is that one kind that the embodiment of the present application proposes is based on non-Foster device
The composed structure schematic diagram five of the antenna of part, as shown in figure 8, the antenna 0 based on non-Foster device can also include feeding point
5。
It should be noted that the signal power that feeder line can issue transmitter is in embodiments herein with minimum
Loss be transmitted to the input terminal of transmitting antenna, or the signal that antenna receives is transmitted to receiver input with the smallest loss
End, while itself should not pick up or generate stray signals, thus, it is desirable to which transmission line must shield.When the object of feeder line
When managing wavelength of the length equal to or more than transmitted signal, transmission line, which is called, makees long line.Feeder refer to transmitter and antenna it
Between line, ideal antenna does not account for feeding point, but in order to which signal is extracted, the point extracted is just feed
Point, it may also be said to be the tie point of feeder line and unit.
It should be noted that the length parameter l of antenna minor matters is defined as minor matters end to feedback in embodiments herein
Longest distance at electric point.
Further, in embodiments herein, the antenna 0 based on non-Foster device can also include coupling gap
6, specifically, when the antenna 0 based on non-Foster device includes mutiple antennas minor matters 3, in mutiple antennas minor matters 3 any two
Coupling gap 6 is provided between a antenna minor matters.
Further, in embodiments herein, the antenna 0 based on non-Foster device can also include printed circuit
Plate (Printed Circuit Board, PCB), i.e. pcb board 7.Fig. 9 is that one kind that the embodiment of the present application proposes is based on non-Fox
The composed structure schematic diagram six of the antenna of special device, as shown in figure 9, floor 1, non-Foster device 2, antenna minor matters 3, the feedback
Source 4, feeding point 5 and coupling gap 6 are all set in the pcb board 7.
It should be noted that floor 1 can for metal in embodiments herein.Specifically, in this application,
Floor 1 can be set in the back side of pcb board 7, non-Foster device 2, antenna minor matters 3, the feed 4, feeding point 5 and coupling
Gap 6 can be set in 7 front of pcb board.
The embodiment of the present application provides a kind of antenna and terminal based on non-Foster device, based on non-Foster device
Antenna includes: floor, non-Foster device, antenna minor matters；Wherein, it is between antenna minor matters, non-Foster device and floor
Electrical connection；Relationship between the corresponding wavelength parameter λ of length parameter l and antenna minor matters of antenna minor matters is the λ of l < 0.1；Wherein, wave
Long parameter lambda is determined as the working frequency range where antenna minor matters.It can be seen that being based on non-Foster in embodiments herein
In the antenna of device, antenna minor matters, non-Foster device and floor can be electrically connected to each other, by antenna minor matters and floor
Between be arranged non-Foster device adjustment antenna resonance, electronically small antenna is worked in assigned frequency, without depositing
In the defect that can not cover working frequency range, solve the problems, such as that the beamwidth of antenna of traditional capacitance tuning is remote too small, so as to
When reducing antenna size, solves the problems, such as that the beamwidth of antenna can not cover working frequency range, and then promote the working performance of antenna, realize
Micro-miniature terminal antenna.
Based on the above embodiment, in the another embodiment of the application, set non-good fortune in the antenna that the application proposes
This special device equivalent can regard negative electricity perhaps negative inductance, the inductively or capacitively tuning that Tuning Principle and traditional antenna scheme use as
Device is similar, but is much larger than the antenna tuned using traditional capacitance inductance with the beamwidth of antenna after non-Foster device.
It should be noted that the antenna based on non-Foster device can use non-Fox in embodiments herein
Negative reactance characteristic on the right side of the frequency response resonance point of special device frequency response, compensates the high frequency reactance of antenna, reaches high frequency treatment broadband
The purpose of impedance matching.Specifically, the equivalent impedance of antenna is at capacitor, high frequency treatment, the reactance curve of antenna and non-Fox module
Negative reactance curve combining on the right side of frequency response resonance point realizes the Broadband Matching of high frequency treatment so that total reactance value is zero.
Figure 10 traditional capacitance tunes schematic diagram, and Figure 11 is that non-Foster device tunes schematic diagram, as shown in FIG. 10 and 11, day
Line minor matters length parameter is 19mm, working frequency range 880MHz-960MHz, and center frequency wavelength, i.e. wavelength parameter are 326mm.
Antenna is tuned using traditional capacitance C in Figure 10, when antenna is tuned using non-Foster device in Figure 10, can be equivalent to negative electricity
Sense-L tuning, wherein angular frequency w corresponding for working frequency0, meet w02LC=1.It is resistance based on Figure 10 and Figure 11, Figure 12
Anti- characteristic curve schematic diagram, impedance characteristic such as Figure 12 institute of traditional capacitance C and the equivalent negative inductance-L of non-Foster device
Show.Based on Figure 10, Figure 11 and Figure 12, Figure 13 is actual effect schematic diagram, as shown in figure 13, due to antenna minor matters length parameter
Less than 0.1 free space wavelength parameter is much smaller than using the beamwidth of antenna that traditional capacitance tunes and uses non-radiative characteristic device
The antenna of tuning can not cover working frequency range, but the non-radiative characteristic device tuning proposed using the application can be highly effective
Covering working frequency range.
The embodiment of the present application provides a kind of antenna and terminal based on non-Foster device, based on non-Foster device
Antenna includes: floor, non-Foster device, antenna minor matters；Wherein, it is between antenna minor matters, non-Foster device and floor
Electrical connection；Relationship between the corresponding wavelength parameter λ of length parameter l and antenna minor matters of antenna minor matters is the λ of l < 0.1；Wherein, wave
Long parameter lambda is determined as the working frequency range where antenna minor matters.It can be seen that being based on non-Foster in embodiments herein
In the antenna of device, antenna minor matters, non-Foster device and floor can be electrically connected to each other, by antenna minor matters and floor
Between be arranged non-Foster device adjustment antenna resonance, electronically small antenna is worked in assigned frequency, without depositing
In the defect that can not cover working frequency range, solve the problems, such as that the beamwidth of antenna of traditional capacitance tuning is remote too small, so as to
When reducing antenna size, solves the problems, such as that the beamwidth of antenna can not cover working frequency range, and then promote the working performance of antenna, realize
Micro-miniature terminal antenna.
Based on the above embodiment, in another embodiment of the application, Figure 14 is the terminal that the embodiment of the present application proposes
Composed structure schematic diagram, as shown in figure 14, the terminal 8 that the embodiment of the present application proposes may include the day based on non-Foster device
Line 0.
It should be noted that the antenna 0 based on non-Foster device may include floor 1 in embodiments herein,
Non- Foster device 2 and antenna minor matters 3.Wherein, floor 1 is electrical connection between non-Foster device 2 and antenna minor matters 3.
Further, in embodiments herein, the antenna 0 based on non-Foster device may include at least one day
Line minor matters 3.Wherein, antenna minor matters 3 may include in hook-type minor matters, broad band low frequency minor matters, snakelike minor matters and strip minor matters
It is at least one.
It should be noted that the antenna 0 based on non-Foster device can be the small day of electricity in embodiments herein
Line.Specifically, electronically small antenna refers to that full-size is less than the antenna of operation wavelength 1/2 π or 1/10, and electronically small antenna generally only exists
In long, medium and short wave and ultrashort wave band.
Further, in embodiments herein, the length parameter l of the antenna minor matters and the antenna minor matters are corresponding
Wavelength parameter λ between relationship can be the λ of l < 0.1.Wherein, the wavelength parameter λ is as the work where the antenna minor matters
Frequency range determines.That is, under corresponding working frequency range, the length of antenna minor matters is less than 0.1 in embodiments herein
A free space wavelength.
Further, in embodiments herein, the terminal 8 that the embodiment of the present application proposes can also include processor
81, it is stored with the memory 82 of 81 executable instruction of processor, further, terminal 8 can also include communication interface 83, and use
In the bus 84 of connection processor 81, memory 82 and communication interface 83.
In embodiments herein, above-mentioned processor 81 can be application-specific IC (Application
Specific Integrated Circuit, ASIC), digital signal processor (Digital Signal Processor,
DSP), digital signal processing device (Digital Signal Processing Device, DSPD), programmable logic device
(ProgRAMmable Logic Device, PLD), field programmable gate array (Field ProgRAMmable Gate
Array, FPGA), central processing unit (Central Processing Unit, CPU), controller, microcontroller, microprocessor
At least one of.It, can be with for realizing the electronic device of above-mentioned processor function it is to be appreciated that for different equipment
To be other, the embodiment of the present application is not especially limited.Color management equipment 1 can also include memory 82, which can
To be connect with processor 81, wherein for memory 82 for storing executable program code, which includes computer operation
Instruction, memory 82 may include high speed RAM memory, it is also possible to further include nonvolatile memory, for example, at least two magnetic
Disk storage.
In embodiments herein, bus 84 for connection communication interface 83, processor 81 and memory 82 and
Being in communication with each other between these devices.
In embodiments herein, memory 82, for storing instruction and data.
In practical applications, above-mentioned memory 82 can be volatile memory (volatile memory), such as at random
It accesses memory (Random-Access Memory, RAM)；Or nonvolatile memory (non-volatile memory),
Such as read-only memory (Read-Only Memory, ROM), flash memory (flash memory), hard disk (Hard Disk
Drive, HDD) or solid state hard disk (Solid-State Drive, SSD)；Or the combination of the memory of mentioned kind, and to place
It manages device 81 and instruction and data is provided.
In addition, each functional module in the present embodiment can integrate in one processing unit, it is also possible to each list
Member physically exists alone, and can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can be with
Using formal implementation of hardware, can also be realized in the form of software function module.
If integrated unit realizes that being not intended as independent product is sold or made in the form of software function module
Used time can store in a computer readable storage medium, based on this understanding, the technical solution sheet of the present embodiment
The all or part of the part that contributes to existing technology or the technical solution can be with software product in other words in matter
Form embodies, which is stored in a storage medium, including some instructions are used so that a meter
It calculates machine equipment (can be personal computer, server or the network equipment etc.) or processor (processor) executes this implementation
The all or part of the steps of example method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
A kind of terminal that the embodiment of the present application proposes, which includes antenna and terminal based on non-Foster device, base
In the antenna of non-Foster device include: floor, non-Foster device, antenna minor matters；Wherein, antenna minor matters, non-Foster device
It is electrical connection between part and floor；Relationship between the corresponding wavelength parameter λ of length parameter l and antenna minor matters of antenna minor matters
For the λ of l < 0.1；Wherein, wavelength parameter λ is determined as the working frequency range where antenna minor matters.It can be seen that in embodiments herein
In, in the antenna based on non-Foster device, antenna minor matters, non-Foster device and floor can be electrically connected to each other, and be passed through
The non-Foster device adjustment antenna resonance being arranged between antenna minor matters and floor, allows electronically small antenna to work specified
When frequency, working frequency range can not be covered without haveing the defects that, the beamwidth of antenna for solving traditional capacitance tuning is remote too small
Problem so as to when reducing antenna size, solve the problems, such as that the beamwidth of antenna can not cover working frequency range, and then promotes antenna
Working performance, realize micro-miniature terminal antenna.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the application
Formula.Moreover, the application, which can be used, can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The application is realization of the reference according to the method, equipment (system) and computer program product of the embodiment of the present application
Flow diagram and/or block diagram describe.It should be understood that flow diagram and/or box can be realized by computer program instructions
The combination of each flow and/or block in figure and the process in implementation process schematic diagram and/or block diagram and/or box.
These computer program instructions be can provide to general purpose computer, special purpose computer, Embedded Processor or other programmable datas
The processor of processing equipment is to generate a machine, so that passing through computer or the processor of other programmable data processing devices
The instruction of execution generate for realizing in one box of implementation process schematic diagram one process or multiple processes and/or block diagrams or
The device for the function of being specified in multiple boxes.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
The manufacture of device is enabled, which realizes in implementation process schematic diagram one process or multiple processes and/or block diagrams one
The function of being specified in a box or multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction that is executed on other programmable devices provide for realizing in one process of implementation process schematic diagram or multiple processes and/or
The step of function of being specified in one or more blocks of the block diagram.
The above, the only preferred embodiment of the application, are not intended to limit the protection scope of the application.
Claims (11)
1. a kind of antenna based on non-Foster device, which is characterized in that the antenna based on non-Foster device includes: ground
Plate, non-Foster device, antenna minor matters；Wherein,
It is electrical connection between the antenna minor matters, the non-Foster device and the floor；
Relationship between the length parameter l of the antenna minor matters and the corresponding wavelength parameter λ of the antenna minor matters is the λ of l < 0.1；Its
In, the wavelength parameter λ is determined as the working frequency range where the antenna minor matters.
2. antenna according to claim 1, which is characterized in that the antenna based on non-Foster device further include: feedback
Source.
3. antenna according to claim 1, which is characterized in that when antenna includes an antenna minor matters,
The non-Foster device is set between one antenna minor matters and the floor.
4. antenna according to claim 1, which is characterized in that when antenna includes mutiple antennas minor matters,
The non-Foster device is set between the multiple antenna minor matters and the floor.
5. antenna according to claim 1, which is characterized in that when antenna includes mutiple antennas minor matters,
The non-Foster device is set between any two antenna minor matters in the multiple antenna minor matters.
6. antenna according to claim 1, which is characterized in that the antenna based on non-Foster device further include: feedback
Electric point, wherein
The distance between the end of the feeding point and the antenna minor matters is defined as the length parameter l.
7. antenna according to claim 1, which is characterized in that the antenna minor matters include hook-type minor matters, broad band low frequency branch,
At least one of snakelike minor matters and strip minor matters.
8. antenna according to claim 4 or 5, which is characterized in that
Coupling gap is provided between any two antenna minor matters in the multiple antenna minor matters.
9. antenna according to any one of claims 1 to 8, which is characterized in that the antenna based on non-Foster device
Further include: printing board PCB plate, wherein
The antenna minor matters, the non-Foster device, the floor, the feed, the coupling gap and the feed
Point is all set in the pcb board.
10. antenna according to claim 1, which is characterized in that the antenna based on non-Foster device is the small day of electricity
Line.
11. a kind of terminal, which is characterized in that the antenna based on non-Foster device can be set in the terminal, wherein described
Antenna based on non-Foster device includes: floor, non-Foster device, antenna minor matters；Wherein,
It is electrical connection between the antenna minor matters, the non-Foster device and the floor；
Relationship between the length parameter l of the antenna minor matters and the corresponding wavelength parameter λ of the antenna minor matters is the λ of l < 0.1；Its
In, the wavelength parameter λ is determined as the working frequency range where the antenna minor matters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696048.3A CN110416712A (en) | 2019-07-30 | 2019-07-30 | Antenna and terminal based on non-Foster device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696048.3A CN110416712A (en) | 2019-07-30 | 2019-07-30 | Antenna and terminal based on non-Foster device |
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| CN110416712A true CN110416712A (en) | 2019-11-05 |
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| CN201910696048.3A Pending CN110416712A (en) | 2019-07-30 | 2019-07-30 | Antenna and terminal based on non-Foster device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764307A (en) * | 2021-09-03 | 2023-03-07 | 荣耀终端有限公司 | Terminal monopole antenna |
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| US7898493B1 (en) * | 2007-06-13 | 2011-03-01 | The Ohio State University | Implementation of ultra wide band (UWB) electrically small antennas by means of distributed non foster loading |
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Application publication date: 20191105 |