CN106602237A - Directional diagram reconfigurable antenna device and intelligent communication terminal - Google Patents
Directional diagram reconfigurable antenna device and intelligent communication terminal Download PDFInfo
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- CN106602237A CN106602237A CN201611182300.1A CN201611182300A CN106602237A CN 106602237 A CN106602237 A CN 106602237A CN 201611182300 A CN201611182300 A CN 201611182300A CN 106602237 A CN106602237 A CN 106602237A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a directional diagram reconfigurable antenna device and anintelligent communication terminal. The directional diagram reconfigurable antenna device comprises a first radiation branch, a second radiation branch, a coupling circuit and a short-connection device. The coupling circuit is connected with the front ends of the first radiation branch and the second radiation branch to regulate the resonant frequency of the antenna device. The short-connection device is used to selectively have the tail ends of the first radiation branch and the second radiation branch in short-connection. When the antenna device is required to perform oriented radiation, the tail ends of the first radiation branch and the second radiation branch are separated to develop a V type oriented antenna; when the antenna device is required to perform all-directional radiation, the tail end of the first radiation branch is in short-connection with the tail end of the second radiation branch through the short-connection device so as to develop an all-directional antenna. In this manner, it is possible to reconstruct the antenna from an oriented antenna to an all-directional antenna and to enable the radiation form of the antenna device to be switched optimally according to its practical application environments.
Description
Technical field
The invention belongs to antenna assembly technical field, specifically, be related to it is a kind of can be to the antenna pattern of antenna
Realize the antenna assembly of Configuration design.
Background technology
With the fast development of intelligent communications terminal and the Internet, wireless communication technology has become the main of people's communication
Mode, is not only limited to the mobile communication terminals such as mobile phone, and the rise of Internet of Things is while data interaction is facilitated so that people's
Social life produces increasing dependence to RFDC.
Internet of Things（The Internet of things）It is the important component part of generation information technology, is also " letter
The important development stage in breathization " epoch.Internet of Things is exactly the connected the Internet of thing thing, and the core of Internet of Things and basis remain mutual
Networking, is the network for extending on the basis of the Internet and extending, and its user side extends and extend to any article and article
Between, carry out the exchange and communication of information.
Current internet of things equipment mainly includes intelligent appliance, intelligent data communication terminal, wearable electronic product etc..
These internet of things equipment are operated under the communication environment of spaciousness mostly, and its wireless propagation path is relatively preferable, by electromagnetic radiation and
The impact of electromagnetic shielding is minimum, can simultaneously with other one or more equipment（Such as base station）Carry out information exchange.For
The internet of things equipment used under spacious environment, its internal antenna assembly needs to be designed to omnidirectional antenna form, by being formed
The signal field that omnidirectional covers, to realize the information transmission of different directions equipment room.
But, for some intelligent communications terminals, apply sometimes in special working environment, such as complicated
Electromagnetic radiation environment, narrow radiation space and electromagnetic shielding environment etc..With intellectual water meter, intelligent electric meter, wireless router etc.
Illustrate as a example by communication terminal, it is weaker that the meeting that this kind of communication terminal has is arranged on the signal places such as piping shaft, underground garage
In environment, the receiving device generally only for communicating is needed, and be normally at a certain specific direction, such as piping shaft
Well head at or underground garage porch etc..When this kind of communication terminal is in this narrow and transmission environment that is closing,
If its antenna assembly is designed to into omnidirectional antenna form, can be limited in the antenna gain of specific direction, effectively letter is had influence on then
Number intensity.Therefore, the intelligent communications terminal for work in particular circumstances, it is sometimes desirable to which its antenna assembly is designed to into orientation
Antenna form, and radiation direction points to the orientation that receiving device is located, by increasing antenna assembly spoke in the specified direction
Gain is penetrated, to improve antenna assembly communication performance in this direction, its good information between receiving device is realized then
Interaction.
But, these intelligent communications terminals not can determine that its specific applied environment when dispatching from the factory, therefore there is antenna
The form unification defect incompatible with applied environment variation, must be according to actual application environment to intelligence during networking
The antenna assembly of energy communication terminal is customized, and thus just result in existing intelligent communications terminal poor compatibility, application
Dumb a series of problems, such as.
The content of the invention
It is an object of the invention to provide a kind of antenna assembly of directional diagram reconstructable, can V-type beam antenna with it is complete
To selection switching is carried out between antenna, reconfigurable design is realized with the forms of radiation to antenna assembly.
In order to solve above-mentioned technical problem, the present invention is employed the following technical solutions and is achieved：
The present invention proposes in one aspect a kind of directional diagram reconstructable aerial device, including the first spoke with head end and end
Penetrate branch, the second radiation branch with head end and end, match circuit and short-circuit device；Match circuit connection described the
The head end of the head end of one radiation branch and the second radiation branch, for adjusting the resonant frequency of the antenna assembly；The short circuit
Device is used for optionally by the end of first radiation branch and the end short circuit of the second radiation branch；Wherein, when described
When antenna assembly needs directed radiation, the end of first radiation branch is separated with the end of the second radiation branch, form V
Type beam antenna；When the antenna assembly needs omnidirectional radiation, by the short-circuit device by first radiation branch
End and the end short circuit of the second radiation branch, form omnidirectional antenna.
The present invention proposes in yet another aspect a kind of intelligent communications terminal, including housing, is built in the letter of the housing
Number source and directional diagram reconstructable aerial device；The directional diagram reconstructable aerial device includes with head end and end first
The matching electricity of radiation branch, the second radiation branch with head end and end, resonant frequency for adjusting the antenna assembly
Road and short-circuit device；First radiation branch and the second radiation branch are arranged on the outside of the housing；The signal source
The head end of first radiation branch and the head end of the second radiation branch are connected by the match circuit；The short-circuit device is used
In optionally by the end of first radiation branch and the end short circuit of the second radiation branch；Wherein, when the day is traditional thread binding
Put when needing directed radiation, the end of first radiation branch is separated with the end of the second radiation branch, form V-type orientation
Antenna；When the antenna assembly needs omnidirectional radiation, by the short-circuit device by the end of first radiation branch with
The end short circuit of the second radiation branch, forms omnidirectional antenna.
Compared with prior art, advantages of the present invention and good effect are：The present invention is by the basis of V-type beam antenna
On, increase the short-circuit device of two radiation branch selectivity short circuits of controllable V-type antenna, such that it is able to make antenna assembly from original
Some directed radiations are changed into omnidirectional radiation, realize reconstruct of the antenna form from beam antenna to omnidirectional antenna, thus achieve
The Design of Compatibility of antenna assembly so that antenna assembly can preferentially switch according to its actual application environment.By the day of the present invention
Line apparatus are applied on intelligent communications terminal, by adjusting antenna assembly omnidirectional radiation, intelligent communications terminal can be caused fine
Ground adapts to spacious communication environment；By adjusting antenna assembly directed radiation, it is ensured that intelligent communications terminal in Feeble field or
Antenna performance under strong jamming electromagnetic environment, has thus been obviously improved adaptation of the intelligent communications terminal to different electromagnetic transmission environment
Ability, extends its application scenario.
After the detailed description of embodiment of the present invention is read in conjunction with the accompanying, the other features and advantages of the invention will become more
Plus it is clear.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below by to be used needed for embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this area
For those of ordinary skill, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is that one kind when directional diagram reconstructable aerial device proposed by the invention is operated in V-type beam antenna is implemented
The circuit theory diagrams of example；
Fig. 2 is operated in circuit theory diagrams during omnidirectional antenna for antenna assembly shown in Fig. 1；
Fig. 3 is second embodiment when directional diagram reconstructable aerial device proposed by the invention is operated in V-type beam antenna
Circuit theory diagrams；
Fig. 4 is operated in circuit theory diagrams during omnidirectional antenna for antenna assembly shown in Fig. 3；
Fig. 5 is the antenna pattern that directional diagram reconstructable aerial device proposed by the invention is operated under beam antenna form；
Fig. 6 is the antenna pattern that directional diagram reconstructable aerial device proposed by the invention is operated under omnidirectional antenna form；
Fig. 7 is the signal that directional diagram reconstructable aerial device proposed by the invention is operated under transmission environment that is narrow and closing
Transmission path figure；
Fig. 8 is the signal transmission path that directional diagram reconstructable aerial device proposed by the invention is operated under spacious transmission environment
Figure.
Specific embodiment
The specific embodiment of the present invention is described in more detail below in conjunction with the accompanying drawings.
The present invention is for the intelligent communications terminal using V-type beam antenna, it is proposed that two kinds can be to the radiation of V-type antenna
Form realizes the technical scheme of reconfigurable design, is preferentially cut between beam antenna and omnidirectional antenna by designing antenna form
Change, so as to improve the compatibility of antenna assembly so that the intelligent communications terminal for being configured with such antenna assembly can be preferably
Adapt to a variety of electromagnetic transmission environment.
Below by two specific embodiments, to implementing for antenna assembly reconfigurable design proposed by the invention
Mode is described in detail.
Embodiment one, as shown in Figure 1 and Figure 2, the antenna assembly of the present embodiment includes radiation body, match circuit 11 and short
The grade key component of connection device 15.Wherein, two relatively turnable radiation are provided with the radiation body of the present embodiment
Branch, is respectively defined as the first radiation branch 12 and the second radiation branch 13.First radiation branch 12 and second is radiated
Two of branch 13 is respectively defined as head end and end, arranges the radiation branch 13 of head end 121 and second of the first radiation branch 12
The position of head end 131 be relatively fixed, and connect described match circuit 11 respectively, realized by match circuit 11 traditional thread binding to day
The tuning of the resonant frequency put.The end 132 of the radiation branch 13 of end 122 and second of the first radiation branch 12 is set for freely
End, can relative to each other away from or it is close, to change the first radiation branch 12 and angle α formed by the second radiation branch 13.It is described
Short-circuit device 15 is used for optionally by the end 132 of the radiation branch 13 of end 122 and second of first radiation branch 12
Short circuit, for changing the forms of radiation of antenna assembly.Specifically, when the short-circuit device 15 disconnects, and the first radiation point
The end 121 for propping up 12 separates with the end 131 of the second radiation branch 13, when forming certain angle α, as shown in figure 1, now, the
One radiation branch 12 and the second radiation branch 13 constitute V-type beam antenna, and the radiation field of high-gain is formed in particular directions.
Even up to shape is docked when the end 121 of first radiation branch 12 is close to each other with the end 131 of the second radiation branch 13
State, as shown in Fig. 2 at this point it is possible to being divided the radiation of end 121 and second of first radiation branch 12 using short-circuit device 15
13 short circuit of end 131 is propped up, to constitute one pole omnidirectional antenna, the electromagnetic field of omnidirectional radiation is formed.
In the present embodiment, the short-circuit device 15 can be using electrical connections such as metal buckle, shell fragments, installed in it
In in a radiation branch 12 or 13, for example, installed in the radiation branch 13 of end 121 or second of the first radiation branch 12
End 131.When the first radiation branch 12 and the second 13 even up to merging phase close to each other of radiation branch, it is possible to use institute
Electrical connection 15 is stated by the short circuit of end 131 of the radiation branch 13 of end 121 and second of first radiation branch 12, and is protected
This short circuit state is held, so as to the first radiation branch 12 and the second radiation branch 13 are merged into into a branch, antenna form is completed
From V-type beam antenna to the reconstruct of one pole omnidirectional antenna.
In the present embodiment, in order to easily to angle formed by the radiation branch 13 of first radiation branch 12 and second
α is adjusted, and the present embodiment arranges an angle adjustment 14 preferably in antenna assembly, as shown in figure 1, by first spoke
The head end 131 for penetrating the radiation branch 13 of head end 121 and second of branch 12 is arranged in the angle adjustment 14, specifically can be pacified
It is mounted in the rotating shaft of angle adjustment 14, the first radiation branch 12 and the second radiation branch 13 is rotated around the rotating shaft,
Further realize effective regulation of its angle α.
When V-type beam antenna is formed using 12 and second radiation branch of the first radiation branch 13, in order that passing through
The radiation field that two radiation branch 12,13 are formed can fully interfere, and formed and point to single directed radiation field, the present embodiment
It is preferred that the angle α that the radiation branch 13 of first radiation branch 12 and second is formed is limited to into 90 °, with particular directions
Obtain maximum radiation gain.For the ease of user when using the intelligent communications terminal for being configured with the antenna assembly, can
The radiation branch 13 of first radiation branch 12 and second is conveniently and accurately adjusted to the position of angle α=90 °, this enforcement
Example is additionally provided with extreme position in the angle adjustment 14, and when regulation antenna assembly is needed directed radiation form is operated in
When, need to only adjust the first radiation branch 12 and the second radiation branch 13 and rotate towards direction away from each other, and arrive separately at angle
During the extreme position in adjustment portion 14, angle α formed by two radiation branch 12,13 is just equal to 90 °.
The equal length of the radiation branch 13 of first radiation branch 12 and second is designed, and is approximately equal to λ, the λ is day
The wavelength of the wireless signal for receiving needed for line apparatus or launching.Preferably, the radiation branch of first radiation branch 12 and second
13 length value preferably between the λ of λ ~ 1.25.As shown in figure 1, by the spoke of head end 121 and second of first radiation branch 12
The signal feed 18 that the head end 131 of branch 13 is connected to antenna assembly by branch 17 is penetrated, intelligence is connected to by signal feed 18
PCB substrate inside energy communication terminal, and connect with the match circuit 11 laid in PCB substrate, connected by match circuit 11
The signal source 10 of intelligent communications terminal, to realize the reception and/or transmitting of radiofrequency signal.The signal source 10 of the present embodiment is intelligence
The general designation of each associated components of communication terminal Inner Constitution radio-frequency channel, it may for example comprise crystal oscillator, master chip, multiplexer, confession electric discharge
Road, filter circuit and other associated radio frequency devices etc..
The present embodiment designs the radiation body of V-type antenna using two independent aerial radiation branches 12,13, due to two
Radiation branch 12,13 can form in structure the unipole antenna of two autonomous workings, and equal length, therefore, by matching
Circuit 11 can tune two radiation branch 12,13 and be operated in identical resonance band respectively, to form radiation field respectively.Due to
First radiation branch 12 and the second radiation branch 13 are arranged in 90 °, therefore, the spoke formed by two radiation branch 12,13
Penetrating field can interfere so as to which integral radiation is the orientation form with greatest irradiation direction.
The match circuit 11 of the present embodiment can be designed to π type structures, as shown in figure 1, specifically can by three electric capacity or
The combination of three inductance of person or electric capacity and inductance constitutes π type matching networks.First radiation is tuned by match circuit 11
The frequency of the resonant frequency of the radiation branch 13 of branch 12 and second wireless signal to be received with antenna assembly is consistent, then real
Now to effective reception of the frequency range wireless signal.
Certainly, the match circuit 11 can also adopt one or more inductively or capacitively or electric capacity and inductance combination structure
The matching network of l-shaped or other forms, the present embodiment is not limited in above citing.
Certainly, for using the body of 12 and second radiation branch of the first radiation branch 13 can meet resonant frequency will
For the antenna assembly asked, the match circuit 11 can also adopt zero resistance（Resistance is zero ohm of resistive element or wire）
Design, the present embodiment is not limited in above citing.
The forms of radiation of the antenna assembly is reconstructed for the ease of user, the present embodiment is preferably by first spoke
Penetrate the outside that the radiation branch 13 of branch 12 and second is arranged on the housing of intelligent communications terminal, it is possible to further in the first radiation
The neighbouring position of the head end 131 of the radiation branch 13 of head end 121 and second of branch 12 arranges rotation section 16, with reference to shown in Fig. 1, with
Enable the radiation branch 13 of first radiation branch 12 and second around the rotation section 16 on the direction of 360 ° of level freely
Rotation, allows the maximum polarization direction of formed V-type beam antenna according to using scene directional signal receiving terminal then
The orientation at place, under Feeble field or strongly disturbing electromagnetic environment, by improving the V-type beam antenna in a certain certain party
To antenna gain, to realize V-type beam antenna in the specific direction preferably transmitting and receptivity.
In the present embodiment, the rotation section 16 can select a universal joint to be arranged on the housing of intelligent communications terminal
On.In order to simplify structure design, preferably angle adjustment 14 is arranged on the rotation section 16, i.e. by the angular adjustment
Portion 14 and rotation section 16 integrate, and are freely rotated on 360 ° of directions of level by controlling angle adjustment 14, to adjust
The rotation direction of first radiation branch 12 and second radiation branch 13.
When needing for the antenna assembly to be converted into omnidirectional antenna from V-type beam antenna, by first radiation branch
12 and second radiation branch 13 merge, and by short-circuit device 15 by the spoke of end 122 and second of first radiation branch 12
The short circuit of end 132 of branch 13 is penetrated, Shi Liangge aerial radiations branch 12,13 is merged into a constant branch of self-resonant frequency,
An one pole omnidirectional antenna is formed, the rotation direction of the one pole omnidirectional antenna is not limited, thus just complete V-type orientation
Antenna realizes the reconfigurable design of antenna assembly to the conversion of omnidirectional antenna.
In the present embodiment, first radiation branch 12 and the second radiation branch 13 can using slender threads system into,
The versions such as plate antenna can also be designed to.When the radiation branch 13 of first radiation branch 12 and second is designed to into plate
During shape antenna, the plate antenna can be made using rectangular metal, and this antenna structure is in the case where headroom is relatively poor
Also there can be preferable radiation efficiency.
With reference to Fig. 5-Fig. 8, the operation principle of the antenna assembly of the present embodiment is specifically described.
As shown in fig. 7, when the intelligent communications terminal 70 of the antenna assembly for being configured with the present embodiment is located at special electromagnetism ring
Under border, such as underground piping, garage etc. it is narrow and close transmission environment when, due to the electromagnetic transmission ring in this relative closure
In border 71, with the receiving device 72 corresponding to intelligent communications terminal 70（Such as base station）Often it is provided only with one, and generally position
In specific direction, such as in the extension path of pipeline or around the import or export of pipeline, therefore, to antenna assembly
Transmitting-receiving performance in particular directions has specific aim and higher requirement.In order to ensure intelligent communications terminal 70 can be with its institute
The reliable communication of corresponding receiving device 72, should be adjusted to the forms of radiation of antenna assembly point to the orientation spoke of receiving device 72
Penetrate, by strengthening antenna assembly radiation gain in the specified direction, to improve intelligent communications terminal 70 in the specific direction
On communication performance.
Specifically, when intelligent communications terminal 70 is located at the electromagnetic environment of relative closure as shown in Figure 7, can control
The radiation branch 13 of first radiation branch 12 and second separates, shape angle in 90 °.Now, the antenna of intelligent communications terminal 70
Form is V-type beam antenna, as shown in figure 1, wireless signal is received and sent by V-type beam antenna.Fig. 5 shows that V-type is determined
To the radiation direction of antenna, the magnetic field radiation direction formed by V-type beam antenna is orientation, by main lobe 51 and minor lobe
52nd, 53 composition.Wherein, main lobe 51 is the Net long wave radiation lobe of V-type beam antenna, and it points to the spoke for being V-type beam antenna
Direction is penetrated, the gain in this direction of V-type beam antenna can be far above omnidirectional antenna.The direction of adjustment V-type beam antenna so as to
The main lobe 51 of formation points to the direction that receiving device 72 is located, and is increased by increasing the radiation in this direction of V-type beam antenna
Benefit, to guarantee intelligent communications terminal 70 with the linking communications of the receiving device 72.
In the present embodiment, for the antenna assembly of rotation section 16 is provided with, intelligent communication end can not changed
On the premise of holding 70 positions, V-type is adjusted by rotating the direction of the first radiation branch 12 and the second radiation branch 13 and orients day
The radiation direction of line points to the orientation that receiving device 72 is located.And for the antenna assembly of rotation section 16 is not provided with, i.e.,
First radiation branch 12 and the second radiation branch 13 can not be relative to the bodies of intelligent communications terminal 70 on the direction of 360 ° of level
The situation of rotation, at this point it is possible to pass through the installation direction for adjusting intelligent communications terminal 70, makes what V-type directional antenna radiation was formed
Main lobe 51 points to the orientation that receiving device 72 is located, by improving antenna assembly radiation gain in the specified direction, with
Improve the performance for wireless communications between intelligent communications terminal 70 and the receiving device 72.
As shown in figure 8, when the intelligent communications terminal 80 of the antenna assembly for being configured with the present embodiment is located at spacious transmission ring
During border, for example, positioned at open air, building, family when, the transmission path of its signal is relatively preferable, it is allowed to intelligent communications terminal 80 with
One or multiple devices（Such as base station 81,82,83,84）While linking communications.Increasing under this transmission environment, to antenna
Benefit requires not harshness, but the polytropism to antenna transmission is required, and needs antenna omnidirectional to radiate, to realize intelligent communications terminal
80 require with the multi link communications of different azimuth equipment 81-84.For this purpose, the antenna form that should adjust antenna assembly is omnidirectional antenna
Form, to realize omnidirectional radiation.
Specifically, when intelligent communications terminal 80 is located at spacious transmission environment as shown in Figure 8, near mutual side
To the first radiation branch 12 and the second radiation branch 13 is rotated, make the two close to or merge, and will be described using short-circuit device 15
The short circuit of end 132 of the radiation branch 13 of end 122 and second of the first radiation branch 12, to constitute one pole omnidirectional antenna, omnidirectional
Radiation.As shown in fig. 6,61,62 is the radiation lobe that one pole omnidirectional antenna is formed, its magnetic field radiation direction is omnidirectional, thus may be used
To realize the multipath between intelligent communications terminal 80 and multiple devices 81-84 while linking.
Because there is omnidirectional antenna more preferable directivity to cover, beam antenna has in one direction preferably polarization effect
Really, therefore, selection carried out between V-type beam antenna and one pole omnidirectional antenna cut by designing the antenna assembly of the present embodiment
Change, it is achieved thereby that multi-scheme compatible design of the intelligent communications terminal under different electromagnetic transmission environment.
Embodiment two, as shown in Figure 3, Figure 4, the antenna assembly of the present embodiment is mainly included by the first radiation branch 32 and
Radiation body that two radiation branch 33 is constituted, the orientation match circuit 30 of matching impedance for adjusting beam antenna, for adjusting
Omnidirectional's match circuit 31 and short-circuit device 35 of the matching impedance of section omnidirectional antenna.Wherein, the He of the first radiation branch 32
Second radiation branch 33 is preferably provided at the outside of the housing of intelligent communications terminal, can on the housing of the intelligent communications terminal
Further to arrange angle adjustment 34 and rotation section 36, the head end 321 and second for connecting first radiation branch 32 is radiated
The head end 331 of branch 33, to facilitate the angle and steering that adjust two radiation branch 12,13.In first radiation branch 32
The end 332 of the radiation branch 33 of end 322 or second short-circuit device 35 is set, by by the end of two radiation branch 32,33
322,332 short circuits of end, to realize antenna form from V-type beam antenna to the conversion of one pole omnidirectional antenna.
First radiation branch 32 of the present embodiment, the second radiation branch 33, angle adjustment 34, rotation section 36 and short circuit
The concrete structure design of device is referred to the associated description in embodiment one, the not reinflated explanation of the present embodiment here.
The present embodiment is in the design of match circuit with the difference of embodiment one.The present embodiment is in order to realize antenna assembly
Necessary matching switching under two kinds of antenna forms of beam antenna and omnidirectional antenna, by for the resonant frequency of tunable antenna device
Match circuits into tunable match circuit, be specifically provided with two sets of matching networks and a single-pole double-throw switch (SPDT) 39.Will
Two sets of matching networks are respectively defined as orienting match circuit 30 and omnidirectional's match circuit 31, are selected by single-pole double-throw switch (SPDT) 39
Select wherein a set of match circuit to connect with the first radiation branch 32 and the second radiation branch 33, with to the first radiation branch 32 and
The resonant frequency of two radiation branch 33 is realized adjusting.
Specifically, single-pole double-throw switch (SPDT) 39 can be laid in the PCB substrate inside intelligent communications terminal, its is public
End COM connection signal feeds 38, the signal feed 38 connects the He of head end 321 of first radiation branch 32 by branch 37
The head end 331 of the second radiation branch 33.First gating end S1 of single-pole double-throw switch (SPDT) 39 is connected and orients match circuit 30, second
Gating end S2 connections omnidirectional match circuit 31.The orientation match circuit 30 and omnidirectional's match circuit 31 are laid in intelligent communication end
End inside PCB substrate on, and with intelligent communications terminal inside signal source 10（That is, radio-frequency channel）Connection, to realize radio frequency
The reception and transmitting of signal.
When the antenna assembly needs to be worked in beam antenna form, by the end 322 of first radiation branch 32
Separate with the end 332 of the second radiation branch 33, and shape angle α in 90 °, to constitute V-type beam antenna.Now, control described
The common port COM of single-pole double-throw switch (SPDT) 39 is connected with its first gating end S1, and using orientation match circuit 30 V-type orientation day is adjusted
The matching impedance of line is consistent with the frequency of its wireless signal to be received with the resonant frequency for tuning V-type beam antenna.
When the antenna assembly needs to be worked in omnidirectional antenna form, first radiation branch 32 and second is radiated
Branch 33 merges, and using short-circuit device 35 by the end of the radiation branch 33 of end 322 and second of first radiation branch 32
332 short circuits are held, to merge a branch is formed, constitute one pole omnidirectional antenna.Now, the public affairs of the single-pole double-throw switch (SPDT) 39 are controlled
Hold COM to connect with its second gating end S2 altogether, the matching impedance of one pole omnidirectional antenna is adjusted using omnidirectional's match circuit 31, to adjust
The resonant frequency of humorous one pole omnidirectional antenna is consistent with the frequency of its wireless signal to be received.
In the present embodiment, the orientation match circuit 30 and omnidirectional's match circuit 31 can both be designed to π type pair nets
Network, it is also possible to design the matching network of l-shaped or other forms, the present embodiment does not carry out concrete restriction to this.
For the single-pole double-throw switch (SPDT) 39, both can be replaced using other active switch, by receiving intelligent communication end
The control signal of controller output is changing the strobe state of its own in end；Hand switch can also be adopted, it is logical according to intelligence
Communication environment residing for letter terminal, the strobe state of hand control switch, to realize necessary resistance to the antenna configurations after switching
Anti- matching, makes which kind of communication environment no matter intelligent communications terminal is under then, can obtain optimal communication quality.
With reference to Fig. 5-Fig. 8, the operation principle of the antenna assembly of the present embodiment is specifically described.
As shown in fig. 7, when the intelligent communications terminal for being configured with antenna assembly described in the present embodiment two is in narrow radiation
During spatial environmentss 71, the common port COM of single-pole double-throw switch (SPDT) 39 is switched to and is connected with its first gating end S1, and controlled described
First radiation branch 32 and the second radiation branch 32 separate, shape angle in 90 °.Now, the antenna form of intelligent communications terminal 70
For V-type beam antenna, according to the orientation that receiving device 72 is located, the radiation direction of V-type beam antenna is adjusted, make V-type orient day
The main lobe 51 that beta radiation is formed points to the orientation that receiving device 72 is located, by improving antenna assembly in the specified direction
Radiation gain, to improve the performance for wireless communications between intelligent communications terminal 70 and the receiving device 72.
As shown in figure 8, when the intelligent communications terminal for being configured with antenna assembly described in the present embodiment two is in spacious transmission
During environment, the common port COM of single-pole double-throw switch (SPDT) 39 is switched to and is connected with its second gating end S2, and control first spoke
Penetrate the radiation branch 33 of branch 32 and second near mutual direction rotate, make the two close to or merge.Then, filled using short circuit
35 are put by the short circuit of end 332 of the radiation branch 33 of end 322 and second of first radiation branch 32, to constitute one pole omnidirectional
Antenna, forms omnidirectional radiation magnetic field, same to meet the multipath between intelligent communications terminal 80 and one or more equipment 81-84
When the communicating requirement that links.
The antenna assembly of the present invention realizes intelligence by carrying out selectivity switching between beam antenna and omnidirectional antenna
Multi-scheme compatible design of the communication terminal under not specific electromagnetic environment.
Certainly, above example is only to illustrate technical scheme, rather than a limitation；Although with reference to aforementioned reality
Apply example to be described in detail the present invention, it will be understood by those within the art that：It still can be to aforementioned each
Technical scheme described in embodiment is modified, or carries out equivalent to which part technical characteristic；And these are changed
Or replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of directional diagram reconstructable aerial device, it is characterised in that include：
First radiation branch, it includes head end and end；
Second radiation branch, it includes head end and end；
Match circuit, the head end of its connection first radiation branch and the head end of the second radiation branch, for adjusting the day
The resonant frequency of line apparatus；
Short-circuit device, it is used for the end of first radiation branch and the end short circuit of the second radiation branch optionally；
Wherein, when the antenna assembly needs directed radiation, by the end of first radiation branch and the second radiation branch
End separate, formed V-type beam antenna；When the antenna assembly needs omnidirectional radiation, by the short-circuit device by institute
The end of the first radiation branch and the end short circuit of the second radiation branch are stated, omnidirectional antenna is formed.
2. directional diagram reconstructable aerial device according to claim 1, it is characterised in that also include：
Angle adjustment, the head end of its connection first radiation branch and the head end of second radiation branch, for adjusting
First radiation branch and angle formed by the second radiation branch.
3. directional diagram reconstructable aerial device according to claim 2, it is characterised in that when the antenna assembly need it is fixed
When radiation, it is 90 ° to adjust first radiation branch and angle formed by the second radiation branch, to constitute V-type beam antenna,
Form directed radiation magnetic field.
4. directional diagram reconstructable aerial device according to claim 3, it is characterised in that the angle adjustment has pole
Extreme position, when first radiation branch and the second radiation branch are separated from each other the extreme position of the angle adjustment is reached
When, first radiation branch and angle formed by the second radiation branch are just 90 °.
5. directional diagram reconstructable aerial device according to claim 2, it is characterised in that also include：
Rotation section, installs thereon described angle adjustment, by control the angle adjustment on 360 ° of directions of level from
By rotating, to adjust the rotation direction of first radiation branch and second radiation branch.
6. directional diagram reconstructable aerial device according to claim 1, it is characterised in that the short-circuit device is metal card
Button or shell fragment, installed in the end of first radiation branch or the end of second radiation branch.
7. directional diagram reconstructable aerial device according to claim 1, it is characterised in that first radiation branch and
The equal length of two radiation branch, and between the λ of λ ~ 1.25, the nothing that the λ is received for needed for the antenna assembly or launched
The wavelength of line signal.
8. directional diagram reconstructable aerial device according to claim 1, it is characterised in that first radiation branch and
Two radiation branch are elongated wire body or plate antenna.
9. directional diagram reconstructable aerial device according to any one of claim 1 to 8, it is characterised in that the matching
Circuit includes：
Orientation match circuit, it is used for when first radiation branch and the second radiation branch form V-type beam antenna, tuning
The resonant frequency of the V-type beam antenna；
Omnidirectional's match circuit, it is used for when first radiation branch and the second radiation branch form omnidirectional antenna, tunes institute
State the resonant frequency of omnidirectional antenna；
Single-pole double-throw switch (SPDT), its common port connects the head end of first radiation branch and the head end of the second radiation branch, and it the
One gating end connects the orientation match circuit, and its second gating end connects omnidirectional's match circuit；
Wherein, when the antenna assembly needs directed radiation, the first gating end for controlling the single-pole double-throw switch (SPDT) is public with it
End connection altogether；When the antenna assembly needs omnidirectional radiation, the second gating end for controlling the single-pole double-throw switch (SPDT) is public with it
End connection altogether.
10. a kind of intelligent communications terminal, including housing and the signal source of the housing is built in, it is characterised in that be additionally provided with
Directional diagram reconstructable aerial device as claimed in any one of claims 1-9 wherein, first radiation branch and the second radiation point
Be arranged on the outside of the housing, the signal source by the match circuit connect the head end of first radiation branch with
The head end of second radiation branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611182300.1A CN106602237B (en) | 2016-12-20 | 2016-12-20 | Directional diagram reconstructable aerial device and intelligent communications terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182300.1A CN106602237B (en) | 2016-12-20 | 2016-12-20 | Directional diagram reconstructable aerial device and intelligent communications terminal |
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| CN106602237A true CN106602237A (en) | 2017-04-26 |
| CN106602237B CN106602237B (en) | 2019-02-12 |
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| CN201611182300.1A Active CN106602237B (en) | 2016-12-20 | 2016-12-20 | Directional diagram reconstructable aerial device and intelligent communications terminal |
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| CN111740916A (en) * | 2020-05-29 | 2020-10-02 | 上海龙旗科技股份有限公司 | Radio frequency front-end circuit and method for realizing directional antenna function of wireless router |
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| CN113982569A (en) * | 2021-10-28 | 2022-01-28 | 北京国基科技股份有限公司 | Remote wellhead service transmission system, method and device based on electric control rotary table |
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