CN106887667A - A kind of antenna and mobile terminal - Google Patents
A kind of antenna and mobile terminal Download PDFInfo
- Publication number
- CN106887667A CN106887667A CN201710281425.8A CN201710281425A CN106887667A CN 106887667 A CN106887667 A CN 106887667A CN 201710281425 A CN201710281425 A CN 201710281425A CN 106887667 A CN106887667 A CN 106887667A
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- China
- Prior art keywords
- antenna
- antenna element
- unit
- signal
- connection
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
-
- 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
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/01—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the shape of the antenna or antenna system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The present invention is that, on a kind of antenna and mobile terminal, the antenna includes at least two antenna elements and connection unit, and the end of the connected antenna element in one end of connection unit be fixedly connected, the connected antenna element pivot bush unit of the other end.Using said structure design, it is under extended configuration in antenna, because the antenna is with multiple antenna elements and connection unit is isolation material, so the antenna can form array antenna, have directive maximum polarization form, be capable of achieving the relatively omnidirectional antenna in the lower antenna maximum polarization direction of weak signal covering antenna gain higher.In the case of antenna puncture, multiple antenna elements shrink and conduct, and form an antenna radiator for miniaturization, and now antenna is in omnidirectional's single antenna form, the gain with omnidirectional, omnidirectional's transmitting-receiving of the antenna being capable of achieving under stronger signal covering.Therefore, the antenna that the present invention is provided realizes the compatible design of orientation and omnidirectional's polarization mode.
Description
Technical field
The present invention relates to antenna technical field, more particularly to a kind of antenna and mobile terminal.
Background technology
With the increase continued to develop with radio communication service of wireless communication technology, wireless communication technology is lived in people
In role it is also more and more important.Antenna as wireless communication system front end receiving and transmitting signal part, the intensity of its signal can be straight
Connect influence message transmission rate.
Current terminal antenna can location be divided into external antenna and built-in aerial two in terminal according to antenna
Major class.Wherein, be may be mounted inside mobile terminal based on built-in aerial, be hardly damaged, and, can pacify in mobile terminal
The advantage of the multiple antenna elements of dress, convenient group battle array, generally built-in aerial is designed as in correlation technique by terminal antenna.Fig. 1 is one
Plant the basic structure schematic diagram of built-in antenna system in mobile terminal.As shown in figure 1, the antenna system includes an aerial radiation
Body 10 and the radio circuit 20 for connecting of antenna radiator 10 and the signal source 30 being connected with radio circuit 20, wherein, antenna
Radiant body 10 can be integrated in printed circuit board (PCB) or terminal enclosure, and radio circuit 20 includes duplexer, power amplifier etc.
Component.In wireless communication signals transmission process, antenna radiator 10 is converted to the radiofrequency signal from radio circuit 20
To the electromagnetic wave of space radiation.Fig. 2 is the radiation direction schematic diagram of the antenna radiator 10 in Fig. 1.As shown in Fig. 2 antenna spoke
The antenna lobe 11 that beam 10 is formed is also referred to as omnidirectional antenna lobe, i.e., be respectively provided with radiation in each direction.
However, as mobile terminal is increasingly to miniaturization, lightening and metallization direction development, causing antenna
The problems such as surrounding environment deteriorates, aerial signal is absorbed by shielding, and there is radiativity in itself in above-mentioned omnidirectional antenna lobe form
The weak problem of energy, so causing the antenna radiation performance in some applied environments not reach preset requirement, influences the data of terminal to pass
Defeated speed.
The content of the invention
The present invention provides a kind of antenna and mobile terminal, and to make up omnidirectional antenna, gain is not under weak signal overlay environment
Foot, influences the problem of terminal transmission rate.
A kind of first aspect according to embodiments of the present invention, there is provided antenna, the antenna includes thering is identical resonance band
With at least two antenna elements of polarization mode, and the insulation connection unit between the adjacent antenna element is arranged on, its
In：
The end of the connected antenna element in one end of the connection unit is fixedly connected, the connected day of the other end
Line unit activity is socketed；
Using the pivot bush unit, form at least two antenna elements tensible and have at regular intervals each other
Array antenna or shrink and form the monopole antenna that is stacked with and conducts.
A kind of second aspect according to embodiments of the present invention, there is provided mobile terminal, the mobile terminal includes that the present invention is implemented
The antenna that example first aspect is provided, the also radio circuit including being connected with the antenna.
From above technical scheme, a kind of antenna provided in an embodiment of the present invention and mobile terminal include in the antenna
At least two antenna elements with identical resonance band and polarization mode, and be arranged between the adjacent antenna element
Insulation connection unit, and the end of the connected antenna element in one end of connection unit be fixedly connected, the other end and its
The antenna element pivot bush unit of connection.Using said structure design, it is under extended configuration in antenna, because the antenna is with more
Individual antenna element and connection unit are isolation material, so the antenna can form array antenna, have directive maximum pole
Change form, is capable of achieving the relatively omnidirectional antenna in the lower antenna maximum polarization direction of weak signal covering antenna gain higher.Further,
In the case of antenna puncture, multiple antenna elements shrink and conduct, and form an antenna radiator for miniaturization, now antenna
In omnidirectional's single antenna form, the gain with omnidirectional, omnidirectional's transmitting-receiving of the antenna being capable of achieving under stronger signal covering.Therefore, originally
The antenna that inventive embodiments are provided realizes the compatible design of orientation and omnidirectional's polarization mode, meets user and is covered according to using signal
Bezel ring, border is to antenna polarization form and the selection use demand of performance.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets implementation of the invention
Example, and be used to explain principle of the invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of basic structure schematic diagram of built-in antenna system in mobile terminal in the prior art；
Fig. 2 is the polarization schematic diagram of the antenna radiator in Fig. 1；
Fig. 3 is the antenna base structure schematic diagram that the embodiment of the present invention one is provided；
Fig. 4 is the polarization schematic diagram of the antenna in Fig. 3；
Fig. 5 is the structural representation in contraction state of the antenna in Fig. 3；
Fig. 6 is the polarization schematic diagram of the antenna in Fig. 5；
Fig. 7 is the antenna base structure schematic diagram that the embodiment of the present invention two is provided；
Fig. 8 is the antenna base structure schematic diagram that the embodiment of the present invention three is provided；
Fig. 9 is the structural representation in contraction state of the antenna in Fig. 8.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in implementation method do not represent and the consistent all implementation methods of the present invention.Conversely, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
It is weaker, whole that the context of antenna design caused for the lightening development with mobile terminal deteriorates the signal for causing
The aerial signal that the all-metal of product is caused is held by influence factors such as the decay of terminal antenna performance for bringing such as shielding absorption,
(such as elevator, basement signal coverage hole, indoor transmissions are due to more when causing mobile terminal in weak signal overlay environment
Footpath effect causes the signal transfer rate of some specific regions not high), antenna radiation performance does not reach preset requirement, influence terminal
The problem of message transmission rate.Antenna and mobile terminal are the embodiment of the invention provides, its major design principle is array day
Line is designed with the restructuralization of single antenna, the high-gain for alloing antenna to have array antenna in certain direction, while using Dan Tian
It is not enough that line omni-directional supplements gain of the array antenna in other directions.
Fig. 3 is the antenna base structure schematic diagram that the embodiment of the present invention one is provided.As shown in figure 3, the antenna mainly includes
Four antenna elements (111,112,113,114), the connection unit (211,212,213) of three insulation, signal transmssion line (311,
312nd, 313,314), phase-adjusting circuit 500 and signal source 400.
Wherein, aforementioned four antenna element with identical resonance band and polarization mode, and above-mentioned antenna element
Hollow barrel-type structure is with connection unit, cylindrical shape, oval cylinder, polygonal cylinder etc. is specifically as follows, in addition, being also not necessarily limited to
All hollow barrel-type structures, such as the 4th antenna element 114 are also designed to solid structure.In connected mode, respectively
The end of the connected antenna element in one end of connection unit is fixedly connected, the connected antenna element movable sleeve of the other end
Connect.By taking the first connection unit 211 as an example, its one end is fixedly connected with the end of first antenna unit 111, the other end is slidingly connected
In the second antenna element 112.The connected mode of other antenna elements and connection unit be also in this way, the embodiment of the present invention herein not
Repeat one by one again.
Further, it is connected in series by the first signal transmssion line (311,312,313) between each antenna element, near
The first antenna unit 111 of signal source 400 is connected by secondary signal transmission line 314 with signal source 400, forms tandem 4 single
First aerial array, constitutes the body construction of antenna.Wherein, above-mentioned signal transmssion line can be coaxial cable, microstrip line etc..In order to
First signal transmssion line does not influence antenna puncture, stretch, and it is arranged in the sleeve of connection unit.
Using above-mentioned antenna element and the special connected mode of connection unit, when antenna, (Fig. 3 is day under tension
Structural representation of the line in extended state), the connection unit between adjacent antenna element with insulation is supporting construction, in a word
Type is arranged, and can be worked independently in the working frequency range of required resonance per antenna element, also, above-mentioned antenna element is respectively provided with phase
Same resonance band and polarization mode.Therefore, when antenna is in extended configuration, the battle array with multiple antenna elements can be formed
Array antenna form.
Radiation field according to array antenna is the characteristics of constituting the summation of each antenna element radiation field of the antenna array, is led to
The setting to the input signal phase of antenna is crossed, radiation intensity of the antenna in preset polarization direction can be improved, realize weak letter
The relatively omnidirectional antenna of number lower antenna horizontal direction of covering antenna gain higher, improves the transmitting-receiving effect of antenna, so as to improve number
According to transmission rate.
Fig. 4 is the polarization schematic diagram of the antenna in Fig. 3.As shown in figure 4, polarization of the antenna in array antenna formula,
On aerial array direction, main lobe 41 has clear and definite polarised direction, has stronger spoke in the polarised direction
Intensity is penetrated, and its antenna gain of minor lobe 42 is weaker than omnidirectional antenna.
So, when the antenna that the present embodiment is provided is in extended configuration, the array antenna for being formed can be as orientation
Antenna is used, and main lobe maximum polarization direction is the direction of array antenna.
Further, the external diameter of the antenna element that the external diameter of design connection unit is secured to connection is identical, and connects
The internal diameter of unit is identical with the external diameter of the antenna element of its dynamic pivot bush unit, so, just can realize antenna freely stretching and
Shrink.To make antenna in a stretched state, its location status can be preferably kept, the internal diameter of connection unit can also be designed
It is slightly smaller than external diameter with the antenna element of its dynamic pivot bush unit, i.e., both are interference fit, so, antenna element just will not be
Voluntary activity in connection unit；In addition, the external diameter of connection unit can also slightly smaller than be secured to the outer of the antenna element of connection
Footpath.Meanwhile, also design the axial length of the axial length less than antenna element of connection unit.
Fig. 5 is the structural representation in contraction state of the antenna in Fig. 3.As shown in figure 5, using above-mentioned connection unit
With the size design of antenna element, when antenna just can be made to be in contraction state, the second antenna element 112 and the second connection unit
212 are retracted into the connection unit 211 of first antenna unit 111 and first, and the outer wall of the second antenna element 112 and first day
The inwall of line unit 111 is in contact；Likewise, the connection unit 213 of third antenna unit 113 and the 3rd is retracted into the second antenna list
In the connection unit 212 of unit 112 and second, the 4th antenna element 114 is retracted into the connection unit of third antenna unit 113 and the 3rd
In 213, and third antenna unit 113 is in contact with the second antenna element 112, the 4th antenna element 114 and third antenna list
Unit 113 is in contact.
I.e. antenna multiple antenna element shrinks and conducts, and forms a miniature antenna radiant body, and now antenna is in
Omnidirectional antenna form, have concurrently antenna Miniaturization Design and omnidirectional gain the characteristics of, it is possible to achieve under the covering of stronger signal
Omnidirectional's transmitting-receiving of antenna.
Fig. 6 is the polarization schematic diagram of the antenna in Fig. 5.As shown in fig. 6, be in omnidirectional antenna state after the antenna puncture, its
Polarization with omnidirectional, compared with array antenna there is average antenna gain to cover in omnirange.
Therefore, using said structure design, it is under extended configuration in antenna, array antenna can be formed, with directionality
Maximum polarization form, be capable of achieving the relatively omnidirectional antenna in the lower antenna maximum polarization direction of weak signal covering antenna gain higher.
Further, in the case of antenna puncture, multiple antenna elements shrink and conduct, and form an aerial radiation for miniaturization
Body, now antenna is in omnidirectional's single antenna form, the gain with omnidirectional, omnidirectional's receipts of the antenna being capable of achieving under stronger signal covering
Hair.Therefore, antenna provided in an embodiment of the present invention realize orientation and omnidirectional's polarization mode compatible design, meet user according to
Using signal overlay environment to antenna polarization form and the selection use demand of performance.
In order to ensure that array antenna is maximized in the radiation intensity of polarised direction, the radical length of each connection unit of design,
And the limiting component at the dynamic pivot bush unit of connection unit and antenna element, arranged according to equidistant between making above-mentioned antenna element
Row.Wherein, it is preferred that the spacing of adjacent antenna units is 1/2nd wavelength in above-mentioned antenna element, the wavelength is each day
The corresponding wavelength of resonant operational frequency of line unit.It should be noted that the spacing of above-mentioned adjacent antenna units can also be it
His size value, simply the spacing of adjacent antenna units is a wavelength or 1/2nd wavelength, it is ensured that the radiation intensity of antenna
Maximize, the gain of antenna is optimal.
Further, in order to ensure the directive gain of array antenna maximum polarization most preferably, it is necessary to ensure that each antenna element is received
It is consistent to the phase angle of radiation signal, therefore, the difference between the transmission line of signal source 400 to each antenna element should
It is an integral multiple for wavelength, i.e., the difference between above-mentioned first signal transmssion line (311,312,313) must be a wavelength
Integral multiple, the wavelength is the corresponding wavelength of resonant operational frequency of each antenna element.
In addition, antenna element quantitative design is 4 by the present embodiment, as 2 index times also allows for antenna element
Self-impedance and other antenna elements mutual impedance influence, be to ensure array antenna maximum polarization gain, improve card antenna pole
Change performance, alternatively, it is also possible to be designed as other quantity, such as 2,8, can also be without being designed again according to 2 index certainly, such as
3,5 etc..
For make above-mentioned antenna stretch and shrink two states under all the time needed for work frequency self-resonance.Such as Fig. 3 and
Shown in Fig. 5, the antenna also includes impedance adjustment unit 500, wherein, first antenna unit 111 passes through secondary signal transmission line 314
One end with the L-type match circuit 510 in impedance adjustment unit 500 is connected, and the other end of L-type match circuit 510 is by matching
Matching device 530 conducting in parallel with L-type match circuit of switching 520 control selections of switch is connected.L-type match circuit 510 and
The phase regulating circuit that the matching device 530 being connected with matching switching switch 520 constitutes antenna can also have other forms, such as
Double L, π type or individual devices etc. are all conventional design forms.Wherein, by the adaptation of the control switching of matching switching switch 520
Part 530 constitutes the impedance matching switching circuit of antenna, plays the purpose of change antenna imaginary phase so as to change the input of signal
Phase, and then coordinate antenna body in the case where stretching and shrinking two states all the time in required work using the impedance adjustment unit 500
The frequency self-resonance of work.
In order to automatically control matching switching switch 520 and match the conducting state of device 530, also in antenna sheet in the present embodiment
The end of body is provided with antenna condition detection unit 540, for detecting that antenna body is, in contraction state, to be in stretching
State.Specifically, antenna condition detection unit 540 can be designed as Hall sensor, pressure sensor etc., also, can be with
Design the other positions in antenna.Meanwhile, the control end and antenna condition detection unit 540 of above-mentioned matching switching switch 520
Signal output part is connected, when antenna body is in different states, it will send different wire to matching switching switch 520
State signal.So, matching switching switch 520 just can be selected according to the antenna condition signal from antenna condition detection unit 540
Lead to corresponding phase adjusted path, and then realize automatically adjusting for tuned impedance, make antenna body in stretching and contraction two
Resonance frequency under state keeps constant.
Further, be can adjust to realize the array antenna maximum polarization direction that antenna body is constituted in extended state
Property, can also further set up phase adjusted path on the basis of above-mentioned impedance adjustment unit 500.Specifically, according to antenna
Gain G=K*cos [1/2 (2 π L*cos γ/λ+δ)], wherein, K is the constant for being decided by antenna resistance, between L is antenna element
Spacing, γ is the angle with array vertical, and λ is wavelength, and δ is poor input phase.Ensure that G is maximum, input phase difference is 0
When, it is most strong to be horizontally oriented γ=90 ° i.e. horizontal direction, changes that input phase is poor, and maximum gain γ also changes, i.e. maximum
The direction of gain changes, and then realizes the change in array antenna maximum polarization direction.
Based on above-mentioned principle, increase Phase-switching switch and phase in the present embodiment in above-mentioned impedance adjustment unit 500
Regulation path (not shown), and the corresponding Signal Regulation phase of each phase adjusted path is different, Phase-switching switch
One end is with the L-type match circuit 510, other end and for leading to any phase adjusted at least two phase adjusteds path
Road connects.Specifically, each phase adjusted path can be set using different length microstrip line, phaselocked loop, different phase matcheds etc.
Meter mode；In addition, in connected mode, each phase adjusted path can be designed as with the circuit structure for matching the parallel connection of device 530,
It is also designed to be connected between signal source 400 and Phase-switching switch.
Using above-mentioned design, if Phase-switching switch is connected with one of phase adjusted path, each antenna element
It is conducting state with the signal transmission pathway between the phase adjusted path；If conversely, Phase-switching switch and the phase adjusted
Path disconnects, then the signal transmission pathway between each antenna element and the phase adjusted path is off-state.
The signal to be sent that signal source 400 is obtained then realizes that each phase is adjusted through each phase adjusted tunnel
The corresponding phase adjusted of section path.The corresponding phase of each phase regulating circuit is different, that is to say, that same signal is through different phases
Position regulation path can realize different phase adjusteds.If for example, impedance adjustment unit 500 include two phase adjusted paths,
The angle-determining that the corresponding phase difference of two phase adjusted paths be able to need to be covered according to default antenna polarization direction, such as
90°。
In signal transmission process, signal source 400 can be connected with the RF processing unit of mobile terminal, pending to obtain
The number of delivering letters.Each phase adjusted path is transmitted to connected antenna element after phase adjusted is carried out to the signal to be sent, after
And pass through each antenna element and be transmitted.During signal reception, the wireless signal that each antenna element will can also be received is passed
Connected phase adjusted path is transported to, by the phase adjusted path being carried out between the wireless signal after phase adjusted by letter
Most RF processing unit is transmitted in number source 400.The phase of the signal to be sent of each antenna element and each antenna element institute
Receiving the phase of signal can determine the polarised direction of each antenna element, and the phase of the signal to be sent of each antenna element
Can be the phase adjusted path regulation by being connected with each antenna element, therefore, each phase adjusted path can pass through
Phase to signal is adjusted, and realizes the regulation to the polarised direction of array antenna.
During in order to realize that above-mentioned antenna element shrinks to form single antenna, the maximization of performance and bandwidth, this hair can be realized
Bright embodiment also add parasitic ground branch, and Fig. 7 is the antenna base structure schematic diagram that the embodiment of the present invention two is provided.As schemed
Shown in 7, the antenna compared with a kind of antenna of embodiment, also including the parasitic branch 610 of ground connection and earthed switch 620.
Wherein, one end of earthed switch 620 is connected with the parasitic branch 610 of ground connection, the other end and earth terminal are connected.Also,
When antenna is in extended configuration, earthed switch 320 disconnects；When antenna is in contraction state, earthed switch 620 is turned on.
Turned in antenna puncture, the presence after being grounded due to the parasitic branch 610 of ground connection, according to the resonance of electromagnetism, can
The principle of the resonant frequency of influence side antenna, using ground connection, parasitic branch 610 can have three kinds of Functional Designs：Firstly, since day
When line is in extended configuration, parasitic branch 610 is invalid when earthed switch 320 is disconnection, i.e. antenna extension, meanwhile, by
It is varied from when resonant frequency relative can stretch under normal circumstances after antenna puncture, at this moment we use the parasitic branch 610 of ground connection
Working frequency of grounding design when antenna resonant frequency can change back original extended configuration；Secondly, it is maximum performance
Change design, specifically, the length of design ground connection just with shrink after dwi hastasana into symmetric form dipole dipole days
Line is designed, and parasitic compared to without ground connection, signal intensity can increase about 3dB in theory；Finally, it is spread bandwidth design, specifically
Be specific size design to the parasitic branch 610 of ground connection, the antenna after shrinking can be helped to increase on original radiation level
The bandwidth of antenna covering.It is, of course, also possible to be designed by the position and structure to the parasitic branch 610 of ground connection, antenna body is set to exist
Other design forms are obtained after contraction, for example, it is also possible to be annular (Loop) antenna, plane inverse-F (Planar Inverted-
F Antenna, abbreviation PIFA) antenna, inverted f (Inverted-F Antenna, abbreviation IFA) antenna etc..
Therefore, using above by for the switched conductive that parasitic branch is grounded after antenna puncture, different antennae shape is realized
The design of same antenna performance under formula, and then realize the compatible design of external restructural and polarization restructural in common-frequency aerial.
Fig. 8 is the antenna base structure schematic diagram that the embodiment of the present invention three is provided.As shown in figure 8, the antenna is also mainly wrapped
Include the connection unit (221,222,223) of four antenna elements (121,122,123,124) and three insulation.
The antenna differs primarily in that the external diameter of connection unit is equal to the day that it is fixedly connected with antenna in embodiment one
The external diameter of line unit, and the external diameter of connection unit is identical with the internal diameter of the antenna element of its dynamic pivot bush unit, so, just can be with
Realize antenna freely stretching and contraction.To make antenna in a stretched state, its location status can be preferably kept, can be with
The external diameter of connection unit is designed as slightly larger than the internal diameter with the antenna element of its dynamic pivot bush unit, i.e., both are interference fit,
So, antenna element just will not in connection unit voluntary activity；In addition, the external diameter of connection unit can also be slightly smaller than consolidating with it
The external diameter of the antenna element of fixed connection.Meanwhile, also design the axial length of the axial length less than antenna element of connection unit.
Using above-mentioned antenna element and the special connected mode of connection unit, when antenna, (Fig. 8 is day under tension
Structural representation of the line in extended state), the connection unit between adjacent antenna element with insulation is supporting construction, in a word
Type is arranged, and can be worked independently in the working frequency range of required resonance per antenna element, also, above-mentioned antenna element is respectively provided with phase
Same resonance band and polarization mode.Therefore, when antenna is in extended configuration, the battle array with multiple antenna elements can be formed
Array antenna form.
Further, Fig. 9 is the structural representation in contraction state of the antenna in Fig. 8.As shown in figure 9, using upper
The size design of connection unit and antenna element is stated, when antenna just can be made to be in contraction state, the second antenna element 122 and the
One connection unit 221 is retracted into first antenna unit 121 wholly or in part, and the outer wall of the second antenna element 122 and
The inwall of one antenna element 121 is in contact；Likewise, the connection unit 222 of third antenna unit 223 and second contracts wholly or in part
Return in the second antenna element 122, the 4th antenna element 124 and the second connection unit 223 are retracted into third antenna unit 123
In, and third antenna unit 123 is in contact with the second antenna element 122, the 4th antenna element 124 and third antenna unit
123 are in contact.
I.e. above-mentioned antenna element is conducted, and forms a miniature antenna radiant body, and now antenna is in omnidirectional antenna form,
Have concurrently antenna Miniaturization Design and omnidirectional gain the characteristics of, it is possible to achieve omnidirectional's receipts of the lower antenna of stronger signal covering
Hair.
Further, it is also to be connected in series by the first signal transmssion line between each antenna element in the present embodiment, most
It is connected with signal source by secondary signal transmission line near signal source antenna element 121, forms the element antenna array of tandem 4,
Constitute the body construction of antenna.Wherein, above-mentioned signal transmssion line can be coaxial cable, microstrip line etc..In order to the first signal is passed
Defeated line does not influence antenna puncture, stretch, and it is arranged in the sleeve of connection unit.
Certainly, except above-mentioned antenna element is connected in series form in head and the tail connection, form can also be connected in parallel, be had
Body, above-mentioned each antenna element is connected by the 3rd signal transmssion line with signal source.For the 3rd signal transmssion line not shadow
Antenna puncture, stretch are rung, can also be located in the sleeve of antenna element and connection unit.
Meanwhile, in order to the array antenna maximum polarization directive gain for ensureing parallel is optimal, equally it is also required to protect
It is consistent, i.e. corresponding 3rd signal transmssion line of each antenna element to demonstrate,prove each antenna element and receive the phase angle of radiation signal
Length difference be an integral multiple for wavelength.
It should be noted that at each antenna element and connection unit according to above-mentioned socket mode outside, can also be near letter
The antenna element in number source is enclosed within the antenna element away from signal source, i.e., near signal source to away from signal source, using antenna
The diameter of unit increased design successively.In addition, each antenna element and connection unit are also not necessarily limited to be the tubular knot closed
Structure, can also be non-enclosed tubular construction (such as semi-barrel shape structure, a quarter tubular construction), i.e. various groove profile knots
Structure.
Based on above-mentioned Antenna Design, the present invention also provides a kind of mobile terminal, and the mobile terminal can be mobile phone, flat board electricity
Brain or other portable equipment etc..The mobile terminal may include antenna and RF processing unit.Wherein, antenna and radio frequency processing
Unit is connected, and antenna can be any described antenna of above-described embodiment.
Antenna can be used for the transmission of wireless signals that will be received to RF processing unit, or by the hair of RF processing unit
Penetrate signal and be converted to electromagnetic wave, send.RF processing unit, the wireless signal for being received to antenna carry out frequency-selecting,
Amplification, down coversion and impedance matching tuning process.
When further, in order to reduce above-mentioned antenna extension into array antenna, reduce antenna taking up room in the terminal,
This implementation is built-in and external compatible form also by Antenna Design.Specifically, be provided with the mobile terminal being connected with the external world
Logical antenna accommodation space, wherein：When above-mentioned antenna element forms monopole antenna, in shrinking back the antenna accommodation space；When
When antenna element forms array antenna, can be stretched over outside the antenna accommodation space.And then can be realized using said structure
The compatible design of built-in single antenna and external array antenna, not only meets the design of antenna miniaturization and antenna high-gain form
Demand, user can also according to usage scenario and use demand, to antenna polarization form (orientation, omnidirectional's polarization) and performance from
Row is selected.Wherein, the stretching, extension of above-mentioned antenna or contraction can manually be controlled by user, can also filled using driving
Put and be controlled.
In addition, be the radiation intensity for ensureing above-mentioned antenna, antenna can be located at the region away from metal device in mobile terminal,
That is non-metallic regions, so as to reduce absorption of the metal device to institute's radiation signal of the antenna element of the antenna.To ensure to move
The accurate judgement of process chip in terminal to antenna polarization direction, the antenna is also needed and the co-channel interference source in the mobile terminal
Isolated, such as the co-channel interference source is shielded.To reduce human body to institute's radiation signal of the antenna element of the antenna
Absorb and disturb, that is, reduce body effect, the antenna can be located at the place that staff (human body) in mobile terminal is difficult to touch.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.
Those skilled in the art after specification and the invention invented here of practice is considered, will readily occur to it is of the invention its
Its embodiment.The application is intended to any modification of the invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow general principle of the invention and the common knowledge in the art do not invented including the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture being described above and be shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.The scope of the present invention is only limited by appended claim.
Claims (10)
1. a kind of antenna, it is characterised in that at least two antenna elements with identical resonance band and polarization mode, and
The insulation connection unit between the adjacent antenna element is arranged on, wherein：
The end of the connected antenna element in one end of the connection unit is fixedly connected, the connected antenna list of the other end
First pivot bush unit；
Using the pivot bush unit, form at least two antenna elements tensible and have battle array at regular intervals each other
Array antenna shrinks the omnidirectional antenna for being formed and being stacked with and conduct.
2. antenna according to claim 1, it is characterised in that the external diameter of described connection unit one end is less than or equal to and it
The external diameter of the antenna element being fixedly connected, the connection unit other end is movably set on the antenna element of its connection.
3. antenna according to claim 1, it is characterised in that the external diameter of described connection unit one end is solid less than or equal to it
The external diameter of the antenna element of fixed connection, the connection unit other end activity is plugged in the antenna element of its connection.
4. antenna according to claim 1, it is characterised in that when at least two antenna element forms array antenna
When, the spacing of adjacent antenna element is the integral multiple of 1/2nd wavelength, the wavelength at least two antenna element
It is the corresponding wavelength of the resonant operational frequency of each antenna element.
5. antenna according to claim 1, it is characterised in that at least two antenna element passes through the first signal transmission
Line is connected in series, and the antenna element of the signal source at least two antenna element near the antenna passes through secondary signal
Transmission line is connected with the signal source；
The length of first signal transmssion line is an integral multiple for wavelength, and the wavelength is the resonance work of each antenna element
The corresponding wavelength of working frequency.
6. antenna according to claim 1, it is characterised in that each antenna element at least two antenna element
It is connected with the signal source of the antenna by the 3rd signal transmssion line respectively；
The length difference of corresponding 3rd signal transmssion line of described each antenna element is an integral multiple for wavelength, the wavelength
It is the corresponding wavelength of the resonant operational frequency of each antenna element.
7. antenna according to claim 1, it is characterised in that the antenna also includes impedance adjustment unit and antenna condition
Detection unit, wherein：
The antenna condition detection unit, the retracted position for detecting at least two antenna element；
The impedance adjustment unit includes matching switching switch and at least two impedances adjust path, and at least two impedance is adjusted
Each impedance adjusts the corresponding matching impedance difference of path in section path；
One end of the matching switching switch is connected with least two antenna element, the other end is used for and described at least two
Any impedance regulation path connection in impedance regulation path；
The control end of the matching switching switch is connected with the signal output part of the antenna condition detection unit, for according to next
From the corresponding impedance regulation path of the antenna condition signal gating of the antenna condition detection unit.
8. antenna according to claim 1, it is characterised in that the antenna element also includes the parasitic branch of ground connection and ground connection
Switch, wherein：
One end of the earthed switch is connected with the parasitic branch of the ground connection, the other end and earth terminal are connected；
When at least two antenna element forms array antenna, the earthed switch disconnects；When at least two antenna
When unit forms omnidirectional antenna, the earthed switch conducting.
9. a kind of mobile terminal, it is characterised in that including any described antennas of claim 1-8, also including with the antenna
The radio circuit of connection.
10. mobile terminal according to claim 9, it is characterised in that be provided with the mobile terminal and be connected with the external world
Antenna accommodation space, wherein：
When at least two antenna element forms omnidirectional antenna, in shrinking back the antenna accommodation space；Described at least two
When individual antenna element forms array antenna, can be stretched over outside the antenna accommodation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281425.8A CN106887667B (en) | 2017-04-26 | 2017-04-26 | Antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281425.8A CN106887667B (en) | 2017-04-26 | 2017-04-26 | Antenna and mobile terminal |
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| CN106887667A true CN106887667A (en) | 2017-06-23 |
| CN106887667B CN106887667B (en) | 2020-06-16 |
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| CN108199141A (en) * | 2017-12-29 | 2018-06-22 | 瑞声精密制造科技(常州)有限公司 | A kind of antenna system and mobile terminal |
| CN110518334A (en) * | 2019-08-26 | 2019-11-29 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN112054282A (en) * | 2020-08-31 | 2020-12-08 | 瑞声新能源发展(常州)有限公司科教城分公司 | Antenna structure and mobile terminal |
| CN112054281A (en) * | 2020-08-31 | 2020-12-08 | 瑞声新能源发展(常州)有限公司科教城分公司 | Antenna structure and mobile terminal |
| CN112272391A (en) * | 2020-10-19 | 2021-01-26 | 珠海格力电器股份有限公司 | Antenna signal adjusting device and terminal signal conversion method |
| CN112531330A (en) * | 2019-09-18 | 2021-03-19 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and mobile terminal accessory equipment |
| CN117408097A (en) * | 2023-12-15 | 2024-01-16 | 昆宇蓝程（北京）科技有限责任公司 | Method and system for improving signal strength related to VICTS antenna |
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| CN112272391B (en) * | 2020-10-19 | 2021-08-17 | 珠海格力电器股份有限公司 | Antenna signal adjusting device and terminal signal conversion method |
| CN112272391A (en) * | 2020-10-19 | 2021-01-26 | 珠海格力电器股份有限公司 | Antenna signal adjusting device and terminal signal conversion method |
| CN117408097A (en) * | 2023-12-15 | 2024-01-16 | 昆宇蓝程（北京）科技有限责任公司 | Method and system for improving signal strength related to VICTS antenna |
| CN117408097B (en) * | 2023-12-15 | 2024-03-12 | 昆宇蓝程（北京）科技有限责任公司 | Method and system for improving signal strength related to VICTS antenna |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |