CN106207452B - A kind of dipole antenna and the compound combined antenna of yagi aerial - Google Patents
A kind of dipole antenna and the compound combined antenna of yagi aerial Download PDFInfo
- Publication number
- CN106207452B CN106207452B CN201610481686.XA CN201610481686A CN106207452B CN 106207452 B CN106207452 B CN 106207452B CN 201610481686 A CN201610481686 A CN 201610481686A CN 106207452 B CN106207452 B CN 106207452B
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- antenna
- dipole
- yagi
- copper
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of dipole antennas and the compound combined antenna of yagi aerial, are made of dipole antenna unit, Yagi antenna unit and inductance, and inductance is mounted on the gap location of the active dipole of Yagi antenna unit.Dipole antenna unit covers copper configuration by dielectric-slab, A and B covers copper and constitutes, and A covers copper configuration and is produced on the A panel of dielectric-slab using covering process for copper, and B covers copper configuration and uses and covers process for copper and be produced on the B panel of dielectric-slab.The combined antenna improves the isolation of dipole antenna and yagi aerial by the loaded cable on the active dipole of yagi aerial, it is suppressed that coupling between dipole antenna and yagi aerial with outer.
Description
Technical field
The present invention relates to a kind of combined antennas, more particularly, refer to a kind of dipole day for inhibiting narrowband with coupling
Line and the compound combined antenna of yagi aerial.
Background technique
Airborne antenna distribution in ideal, is in complex electromagnetic environment, antenna or antenna system can not influence
Under the premise of other antenna radiation performances coexisted, self performance will not be affected substantially.But it is intended to reach this degree,
Railway Project needs to solve: being that antenna system on aircraft is various first, working frequency range covering is extremely wide and has mutual covering
The case where, while reception and radiation, the work for just inevitably receiving other common-frequency-band antennas is brought antenna
With interior influence, while also having work brought by the Antenna Operation of different frequency bands with outer influence.Followed by day space of lines cloth
The problem of office, as airborne antenna system development is aviation Integrated Electronic System, the position of airborne antenna is relatively fixed, thus
It has no idea to improve coupling using the method for adjusting spatial position, this is also that the improvement of airborne antenna brings new difficult point.
The problem of being finally bandwidth, needs various antennas to be mounted, such as radar antenna, navigation antenna, communication in modern aircraft
Antenna etc..The sum of antenna reaches nearly 100 in aircraft, can if each antenna is the antenna of narrower bandwidth
So that the integral layout of airborne antenna is generated very big puzzlement, while can also bring additional resistance to the flight of aircraft itself.
And in aviation Integrated Electronic System, it is also possible to several types antenna synthesis can occur into an antenna system
The bandwidth of situation, such antenna system just increased so that before between antenna with outer coupling, it is more likely that just become
Between antenna with interior coupling, in view of this antenna coupled problem is a very important electromagnetic compatibility problem.In airborne day
In linear system system, coupled problem is not only very severe, but also be that all designers have to face, and solves to get up also to acquire a certain degree of difficulty
Problem.But it is one very big that if solving this problem aircraft can have in everyways such as flying quality, safeties
It is promoted.Just because of the seriousness of airborne antenna problem, so that antenna is coupled into for the hot topic in a research, simultaneously
Also the upgrading of let us urgent need is about antenna Coupling Research method, this design and optimization to airborne antenna system, and
The development of entire integrated avionics system suffers from significance.
Existing coupling suppression technology is essentially divided into three types, first is that from the angle of frequency range, more traditional side
Method is the design by antenna come the resonance frequency for the numerous antennas being staggered in antenna system.For individual antenna, band is outer
Interference be the interference being less than in band, or even under many situations, the antenna interference outside band is not considered.This
The advantages of kind method is the antenna of different frequency range, and especially resonance frequency differs more antenna, when working together mutually
It influences very small；But disadvantage is also very prominent, since the antenna in aviation Integrated Electronic System is highly integrated, is inconjunction with antenna
Frequency band also further widened, it is also more and more that working band between different types of antenna is overlapped phenomenon, so this
The application range of method constantly reduces.
Second is that reducing the coupled problem in antenna system from the angle of space layout, more commonly used method is to pull open day
The distance between line adds baffle etc. between antennas.The advantages of this method is that effect is relatively good, the increasing of space length
Can substantially it be reduced with the transmitting of electromagnetic energy greatly, and increasing baffle is even more that can hinder electromagnetic wave propagation；But disadvantage is same
Obviously, can be used to arrange that the space of antenna is very limited on aircraft, it is impossible to the layout of antenna is adjusted in a large range, and
The development of aviation Integrated Electronic System is so that the position of antenna is more fixed, so that the applicability of this method also reduces perhaps
It is more.
Third is that reducing the mutual coupling problem between antenna by changing antenna self structure, the method that can choose has change
The material of antenna, the size for adjusting antenna or the environment for modifying aerial radiation etc..The advantages of this method is antenna system
Working frequency and space layout it is influenced smaller, the comparison that operates is flexible, and reasonable structure optimization can make aerial system
Coupling between system is improved；But disadvantage is it is also obvious that from the perspective of antenna structure, thus it is possible to vary method it is various
Various kinds, i.e., the coupling that smaller to antenna itself affect and effective reduction generates other antennas, that is, be difficult to find a knot
The point of penetration of structure optimization changes antenna structure.
Summary of the invention
In order to inhibit working band not to be overlapped antenna between Solution of Electromagnetic Field Penetration Problems, the present invention, which devises, a kind of has coupling
Close the dipole antenna and the compound combined antenna of yagi aerial for inhibiting narrowband.The combined antenna passes through in the active of yagi aerial
Loaded cable on oscillator improves the isolation of dipole antenna and yagi aerial, it is suppressed that dipole antenna and yagi aerial
Between with outer coupling.
Another object of the present invention is to not change using combined antenna of the present invention for the antenna system in application
Under the size and distance condition of antenna, the antenna in application is realized by loaded cable and is rectified and improved.
The present invention devises a kind of dipole antenna and the compound combined antenna of yagi aerial for inhibiting narrowband with coupling,
It is made of a dipole antenna unit, a Yagi antenna unit and 2 inductance；
Gap is cut on the active dipole of the Yagi antenna unit, the gap location is mounted with the inductance；
The dipole antenna unit covers copper configuration by dielectric-slab, A and B covers copper and constitutes, and A, which covers copper configuration and uses, covers copper
Technique is produced on the A panel of dielectric-slab, and B covers copper configuration and is produced on the B panel of dielectric-slab using covering process for copper；A covers copper structure
What shape and B covered copper configuration covers 0.018~0.035mm of copper thickness.
In the present invention, the wavelength that the dipole antenna unit is selected is 50mm~5000mm；The yagi aerial list
The wavelength that member is selected is 50mm~5000mm.
A kind of dipole antenna and the compound combined antenna of yagi aerial for inhibiting narrowband with coupling that the present invention designs
The advantages of be:
1. effectively combined antenna can be inhibited to exist by the loaded cable on the appropriate location of the active dipole of yagi aerial
Spurious emissions outside working band, improve Electro Magnetic Compatibility.
2. combined antenna of the present invention is to be combined dipole antenna and yagi aerial, Space Coupling, Neng Gougai are realized
It is apt to two kinds of isolation between antennaes, so that mutual coupling is effectively suppressed.
3. in order to adjust the inhibition frequency of combined antenna, high-power applications can be realized by change antenna size, and
Production is simple.
Detailed description of the invention
Fig. 1 is a kind of dipole antenna and compound combination of yagi aerial for inhibiting narrowband with coupling that the present invention designs
The structure chart of antenna.
Figure 1A is a kind of dipole antenna and the compound group of yagi aerial for inhibiting narrowband with coupling that the present invention designs
Close the exploded view of antenna.
Figure 1B is a kind of dipole antenna and the compound group of yagi aerial for inhibiting narrowband with coupling that the present invention designs
Close the front view of antenna.
Fig. 2 is the dipole antenna and the compound group of yagi aerial that there is the another kind that the present invention designs coupling to inhibit narrowband
Close the structure chart of antenna.
Fig. 2A is that there is the another kind that the present invention designs coupling to inhibit the dipole antenna of narrowband and yagi aerial compound
The exploded view of combined antenna.
Fig. 3 A is the S11 Parameter Map of 1 dimension combination antenna of embodiment.
Fig. 3 B is the S12 Parameter Map of 1 dimension combination antenna of embodiment.
Fig. 3 C is the S22 Parameter Map of 1 dimension combination antenna of embodiment.
Fig. 4 A is the face the E directional diagram of 1 dimension combination antenna of embodiment.
Fig. 4 B is the face the H directional diagram of 1 dimension combination antenna of embodiment.
Fig. 5 is the S12 Parameter Map of the load different induction value of 1 dimension combination antenna of embodiment.
Fig. 6 is the gain of 1 dimension combination antenna of embodiment with frequency variation curve figure.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
Referring to shown in Fig. 1, Figure 1A, the present invention devises a kind of dipole antenna and Yagi spark gap day for inhibiting narrowband with coupling
The compound combined antenna of line, by the first dipole antenna unit 1,4 structure of the first Yagi antenna unit 2, A inductance 3 and B inductance
At.First dipole antenna unit 1 covers copper by dielectric-slab 13, A and is configured 11 and B and covers copper configuration 12 to constitute, and A covers copper configuration 11
It is produced on the A panel 13A of dielectric-slab 13 using process for copper is covered, B covers copper configuration 12 and is produced on dielectric-slab 13 using covering process for copper
B panel (being not shown in the figure, i.e., another panel opposite with A panel) on；A covers copper and is configured 11 and B and covers copper configuration 12 to cover copper
0.018~0.035mm of thickness.The combined antenna that the present invention designs is Space Coupling.
In the present invention, the inductance value that A inductance 3 and B inductance 4 are selected is 1.6nH~180nH.
Referring to shown in Fig. 1, Figure 1B, the length of dielectric-slab 13 is denoted as a13, dielectric-slab 13 width be denoted as b13, dielectric-slab 13 thickness
Degree is generally 0.5~1.5mm.B covers copper configuration 12 and the spacing of the first Yagi antenna unit 2 is denoted as d1-2, similarly D covers copper configuration
102 are denoted as d with the spacing with the second Yagi antenna unit 2010-20(not shown), and d1-2=d10-20。
In the present invention, it is cut on the A active dipole 21 of the first Yagi antenna unit 2 at 21A, A the gap 21A of the gap A
It is connected with A inductance 3, is cut on the B active dipole 22 of the first Yagi antenna unit 2 at 22A, B the gap 22A of the gap B and is connected with B
Inductance 4.The length of active dipole in first Yagi antenna unit 2 is denoted as b2, the length for installing the suitable position of inductance is denoted as
bin(also referred to as inductance installation site interval bin), then there is bin=0.756b2.The gap the A 21A and gap B 22A is cutting for 1~2mm
Mouthful.
A covers copper configuration 11
Referring to shown in Figure 1A, it is integral using process for copper production is covered that A covers copper configuration 11.With dotted line to A cover copper configuration 11 into
Row structure divides.A covers copper configuration 11 and is made of AA feeder line 11A and AB radiation element 11B.
Referring to shown in Figure 1A, the length of AA feeder line 11A is denoted as a11A, AA feeder line 11A width be denoted as b11A。
Referring to shown in Figure 1A, the length of AB radiation element 11B is denoted as a11B, AB radiation element 11B width be denoted as b11B。
B covers copper configuration 12
Referring to shown in Figure 1A, it is integral using process for copper production is covered that B covers copper configuration 12.With dotted line to B cover copper configuration 12 into
Row structure divides.B covers copper configuration 12 and is made of BA feeder line 12A and BB radiation element 12B.
Referring to shown in Figure 1A, the length of BB radiation element 12B is denoted as a12B, BA feeder line 12A width be denoted as b12B。
Referring to shown in Figure 1A, the distance between upper bottom edge and bottom of BA feeder line 12A are denoted as a12A, BA feeder line 12A it is upper
Bottom edge width is denoted as bOn 12, BA feeder line 12A bottom hem width be denoted as bUnder 12。
Referring to fig. 2, shown in Fig. 2A, the dipole antenna and Yagi spark gap that there is the another kind that the present invention designs coupling to inhibit narrowband
The compound combined antenna of antenna, by the second dipole antenna unit 10, the second Yagi antenna unit 20, C inductance 30 and D inductance
40 are constituted.Second dipole antenna unit 10 is identical as 1 structure of the first dipole antenna unit.Second Yagi antenna unit 20 with
The difference of first Yagi antenna unit 2 is that active dipole is annular shape.
The gap C 20B1, C gap 20B1 is cut on the A minor matters 20B of the C active dipole 20A of second Yagi antenna unit 20
Place is connected with C inductance 30, is cut with the gap D 20C1, D on the B minor matters 20C of the C active dipole 20A of the second Yagi antenna unit 20
D inductance 40 is connected at the 20C1 of gap.The notch that the gap C and the gap C are 1~2mm.
In second of combined antenna structure, the installation site of C inductance 30 is in the intermediate position of A minor matters 20B, D inductance 40
Installation site at the intermediate position of B minor matters 20C.
Cover the dimension constraint of copper configuration:
In the present invention, it is contemplated that antenna practical application scene is 50mm~5000mm as dipole antenna using wavelength X
Confinement dimension design:
a13=(0.5~1.2) λ, b13=(0.6~1.0) λ；
d1-2=d10-20=(0.7~1.5) λ；
b11A=bOn 12=0.0075 λ；
a11A=a12A=(0.125~0.25) λ；
a11B=a12B=(0.01~0.015) λ；
b11B=b12B=(0.1~0.2) λ；
bUnder 12=0.03 λ.
Embodiment 1
A covers copper and is configured 11 and B to cover the copper thickness that covers of copper configuration 12 to be 0.035mm.The yagi aerial that embodiment 1 is selected is as schemed
Shown in 1, the permanent HD-297YAG10 model yagi aerial for reaching Microwave Corporation, working frequency 297MHz are used, gain is
10dB, beam angle are 30 °.
The size of dipole antenna is as follows:
a13=500mm, b13=440mm；
d1-2=1000mm；
b11A=bOn 12=7.5mm；
a11A=a12A=250mm；
a11B=a12B=10mm
b11B=b12B=120mm；
bUnder 12=30mm.
Carry out performance evaluation using S parameter to embodiment 1: dotted line indicates that traditional antenna, solid line indicate the reality of design in figure
Apply 1 antenna of example.
Referring to shown in Fig. 3 A, S11 parameter indicates the working performance of yagi aerial 2, it is in work frequency before and after inductance load
Performance at rate 300MHz is basically unchanged.
Referring to shown in Fig. 3 B, the present invention is used between S12 evaluation inductance load front and back dipole antenna and yagi aerial
Isolation, as shown in Figure 3B, the degree of coupling traditional antenna at working frequency 600MHz are -43dB.And 1 antenna of embodiment drops
As low as -52dB, 9dB is had dropped.Degree of coupling S12 can reach near working frequency 600MHz and be effectively reduced, and wherein frequency is
15dB can be reduced when 670MHz.
Referring to shown in Fig. 3 C, S22 parameter indicates the working performance of dipole antenna, it is in work frequency before and after inductance load
Performance at rate 600MHz is basically unchanged.
Carry out inductance load front and back performance evaluation using directional diagram to embodiment 1: dotted line indicates traditional antenna, solid line in figure
Indicate 1 antenna of embodiment of design.As can be seen that working frequency is 300MHz from Fig. 4 A, the face E of Fig. 4 B, the face H directional diagram
When, antenna radiation performance is unaffected.
1 antenna of the embodiment of the present invention working frequency be 300MHz when S12 value with inductance loaded value change curve such as
It is that mutual coupling is significantly inhibited by 168nH, and S12 is optimal in inductance value shown in Fig. 5.
Shown in Figure 6, when frequency is near 670MHz, antenna obtains 1 antenna of the embodiment of the present invention with outer gain
Effective compression, that is, effectively inhibit spurious emissions of the antenna outside working band, improve the Electro Magnetic Compatibility of antenna.
Embodiment 2
A covers copper and is configured 11 and B to cover the copper thickness that covers of copper configuration 12 to be 0.035mm.The yagi aerial that embodiment 2 is selected is as schemed
Shown in 2, the permanent HD-40YAG5 model yagi aerial for reaching Microwave Corporation is used, working frequency 406MHz, gain 10dB,
Beam angle is 30 °.
The size of dipole antenna is as follows:
a13=500mm, b13=440mm；
d1-2=1000mm；
b11A=bOn 12=7.5mm；
a11A=a12A=250mm；
a11B=a12B=10mm
b11B=b12B=120mm；
bUnder 12=30mm.
Carry out performance evaluation using S parameter to embodiment 2: dotted line indicates that traditional antenna, solid line indicate the reality of design in figure
Apply 2 antenna of example.
S11 parameter indicates the working performance of yagi aerial 20, it is at working frequency 406MHz before and after inductance load
Performance is basically unchanged.
The present invention is being worked using the isolation between S12 evaluation inductance load front and back dipole antenna and yagi aerial
Degree of coupling traditional antenna at frequency 600MHz is -30dB.And 2 antenna of embodiment is reduced to -41dB, has dropped 11dB.Coupling
Right S12 can reach near working frequency 600MHz and be effectively reduced, and can reduce 12dB when wherein frequency is 670MHz.
S22 parameter indicates the working performance of dipole antenna, it is at working frequency 600MHz before and after inductance load
Performance is basically unchanged.
Inductance load front and back performance evaluation is carried out using directional diagram to embodiment 2: can from the face E, the face H directional diagram
Out, when working frequency is 406MHz, antenna radiation performance is unaffected.
S12 value of 2 antenna of the embodiment of the present invention when working frequency is 300MHz can with the change curve of inductance loaded value
Know, is that mutual coupling is significantly inhibited by 120nH, and S12 is optimal in inductance value.
For 2 antenna of the embodiment of the present invention when frequency is near 670MHz, antenna has obtained effective compression with outer gain,
Spurious emissions of the antenna outside working band are effectively inhibited, the Electro Magnetic Compatibility of antenna is improved.
Claims (7)
1. a kind of dipole antenna and the compound combined antenna of yagi aerial, it is characterised in that: combined antenna is by a dipole
Sub-antenna unit, a Yagi antenna unit and inductance (3,4) are constituted；
The gap A is cut on the A active dipole of the Yagi antenna unit, A gap location is connected with A inductance (3), yagi aerial list
It is cut with the gap B on the B active dipole of member, B gap location is connected with B inductance (4)；The gap is the notch of 1~2mm；
The dipole antenna unit covers copper configuration by dielectric-slab, A and B covers copper and constitutes, and A, which covers copper configuration and uses, covers process for copper
It is produced on the A panel of dielectric-slab, B covers copper configuration and is produced on the B panel of dielectric-slab using covering process for copper；A covers copper configuration and B
Cover copper configuration covers 0.018~0.035mm of copper thickness.
2. a kind of dipole antenna according to claim 1 and the compound combined antenna of yagi aerial, it is characterised in that: institute
The wavelength for stating dipole antenna unit selection is 50mm~5000mm；The wavelength that the Yagi antenna unit is selected be 50mm~
5000mm。
3. a kind of dipole antenna according to claim 1 and the compound combined antenna of yagi aerial, it is characterised in that: institute
It states Yagi antenna unit and selects the yagi aerial with annular active dipole.
4. a kind of dipole antenna according to claim 1 and the compound combined antenna of yagi aerial, it is characterised in that: group
Closing the working frequency that antenna is suitable for is 300 ± 20MHz and 600 ± 20MHz.
5. a kind of dipole antenna according to claim 1 and the compound combined antenna of yagi aerial, it is characterised in that: institute
The inductance value for stating inductance selection is 1.6nH~180nH.
6. a kind of dipole antenna according to claim 1 and the compound combined antenna of yagi aerial, it is characterised in that: group
Conjunction antenna is Space Coupling.
7. a kind of dipole antenna according to claim 1 and the compound combined antenna of yagi aerial, it is characterised in that: electricity
B is divided between the installation site of sense (3,4)in=0.756b2, b2For the length of the active dipole in Yagi antenna unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610481686.XA CN106207452B (en) | 2016-06-27 | 2016-06-27 | A kind of dipole antenna and the compound combined antenna of yagi aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481686.XA CN106207452B (en) | 2016-06-27 | 2016-06-27 | A kind of dipole antenna and the compound combined antenna of yagi aerial |
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| CN106207452A CN106207452A (en) | 2016-12-07 |
| CN106207452B true CN106207452B (en) | 2018-12-11 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204558647U (en) * | 2015-04-23 | 2015-08-12 | 四川省视频电子有限责任公司 | A kind of collapsible high-gain five unit Yagi antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100876332B1 (en) * | 2007-03-22 | 2008-12-31 | 신정현 | Receiving antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204558647U (en) * | 2015-04-23 | 2015-08-12 | 四川省视频电子有限责任公司 | A kind of collapsible high-gain five unit Yagi antenna |
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