CN110350307A - A kind of sequence mutually presents the dielectric resonator antenna array of circular polarisation - Google Patents
A kind of sequence mutually presents the dielectric resonator antenna array of circular polarisation Download PDFInfo
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- CN110350307A CN110350307A CN201910630139.7A CN201910630139A CN110350307A CN 110350307 A CN110350307 A CN 110350307A CN 201910630139 A CN201910630139 A CN 201910630139A CN 110350307 A CN110350307 A CN 110350307A
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- dielectric resonator
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- power divider
- wilkinson power
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
- H01Q21/061—Two dimensional planar arrays
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention discloses the dielectric resonator antenna arrays that a kind of sequence mutually presents circular polarisation, are made of n dielectric resonator, four rotation feed networks, Wilkinson power divider, medium substrate, coaxial feed, metal probe and strip line;N dielectric resonator forms array on medium substrate;Feed network is made of one four Wilkinson power divider for rotating feed network and four one-to-two for being located at medium substrate center back;The energy of coaxial transmission is fed to two frequency dividers by feed network, then two by being placed on frequency divider output end metal probes are coupled to the orthogonally located strip line of dielectric resonator side wall.The present invention is able to achieve relatively narrow main lobe antenna pattern width, higher gain, wider impedance bandwidth and axial ratio bandwidth, so that antenna has more excellent stable circular polarisation performance, the index request in modern communications technology to circular polarisation communication system is better met.
Description
Technical field
The invention belongs to the technical fields that circular polarisation in modern communication systems communicates, and in particular to a kind of sequence mutually presents entelechy
Change Rectangular Enclosure with Participating Media resonant antenna array.
Background technique
With the development in space and the communication technology, circular polarized antenna has big advantage with it, plays in wireless domain
Important function.Line polarization wave is easy the generation polarization rotation in transmission environment and causes to decay, and circularly polarised wave encounters barrier meeting
Reversely, because direct wave and back wave have polarization isolation, circularly polarised wave has very strong anti-interference ability and anti-misty rain
Ability, and be widely used in civil and military field.Circular polarized antenna is broadly divided into following two form at this stage, in property
Though respectively there is feature on energy, it is insufficient to there is certain.
1, helical antenna, helical antenna are a kind of antennas that frequency is unrelated.People are not constrained to extensive by frequency
Balanced electrical characteristics are provided in frequency range.And resistance characteristic is presented in helical antenna substantially over a wide frequency band, is easy to real
Existing broadband properties, stability are relatively good.Wherein flat helical antenna is a kind of all channel antenna, because its is compact-sized, size is small,
It is light-weight and be able to that extensive use can be played in radar electronic warfare, military affairs, space industry.However, the free antenna of frequency
Often have directional diagram wide, directionality difference and lower gain, these disadvantages make it that can not adapt to many practical applications.Although
The directional diagram that antenna can be improved by the principle using aerial array improves the gain of antenna, but its broadband character also will
It is lost in the environment of array.
2, microstrip antenna, circular polarization microstrip antenna are made between conductor patch and grounding metal plane by certain feeding classification
Areas of dielectric in motivate radio frequency electromagnetic field, this is from the gap of patch edges and ground plane formation to external radiation.Micro-strip
The low section structure of antenna makes itself just to belong to one-dimensional miniature antenna, and has easily and carrier compared to conventional microwave antenna
Surface is conformal, easy of integration and readily available circular polarisation, realizes double frequency, dual polarization work, light-weight, small in size, at low cost etc.
Advantage.But meanwhile microstrip antenna frequency band is relatively narrow, there are conductor and dielectric loss, and can drive surface waveguide cause radiation efficiency drop
Low, performance is affected by substrate material, and microstrip antenna power capacity is smaller, therefore is normally only used for medium and small power occasions.
Summary of the invention
The present invention is the medium for providing a kind of sequence and mutually presenting circular polarisation in place of overcoming shortcomings and deficiencies of the existing technology
Resonant antenna array, to be able to achieve relatively narrow main lobe antenna pattern width, higher gain, wider impedance bandwidth and axis
It is better met in modern communications technology so that antenna has more excellent stable circular polarisation performance to circle than bandwidth
The index request for the communication system that polarizes.
For achieving the above object, the present invention adopts the following technical scheme:
The characteristics of a kind of sequence of the present invention mutually presents the dielectric resonator antenna array of circular polarisation be include: n dielectric resonator,
Four rotation feed networks, the Wilkinson power divider of one-to-two, medium substrate, coaxial feed, metal probe, strip line,
Wherein, n is even number;
There is n dielectric resonator according to cells arranged in matrix on the medium substrate, to form aerial array;
It is provided with earth plate on the medium substrate, 2n round gap is set on the earth plate;
Two No. i-th strip lines of orthogonal thereto arrangement are provided on the side wall of any i-th of dielectric resonator;
It is respectively arranged with No. i-th metal probe in any two circle gap, the one of any one No. i-th metal probe
End is in contact with one of them No. i-th strip line, and the other end of corresponding No. i-th metal probe passes through medium substrate and No. i-th
An output end in two frequency dividers of Wilkinson power divider is connected;
The four rotation feed network and No. i-th Wilkinson power divider are connected and are respectively positioned on the medium substrate
The back side, offer i-th of rectangular aperture on the earth plate above No. i-th Wilkinson power divider;
The four rotations feed network receives the energy of the coaxial feed transmission and is fed to all Wilkinson powers
The input terminal of two frequency dividers of distributor, and between No. i-th Wilkinson power divider and i-th of rectangular aperture
The formation effect of intercoupling, to generate excitation to i-th of dielectric resonator;
The dielectric resonator antenna array is using the n Rectangular Enclosure with Participating Media resonator as radiation area, with the metal probe
It is transmission range with strip line, using the coaxial feed, four rotation feed networks and Wilkinson power divider as feed area, from
And sending and receiving for energy is realized using the radiation area, transmission range and feed area.
The characteristics of dielectric resonator antenna array of the present invention, lies also in, and the n dielectric resonator is four media
Resonator, and it is located at four vertex and composition aerial array of the medium substrate.
The n dielectric resonator is rectangle.
The center of circle in the circle gap is Chong Die with the axle center of metal probe.
Compared with prior art, the invention has the advantages that:
1, inventive antenna array element uses Rectangular Enclosure with Participating Media resonator, and Rectangular Enclosure with Participating Media resonator compares Jie of other shapes
Matter resonator has low and convenient for production the advantage of cross polarization;The overall dimensions of antenna can be by improving doing for dielectric constant
Method reduces;If the relative dielectric constant appropriate for reducing medium, the radiation of electromagnetic energy may remain in one relatively
In wide frequency range.
2, present invention employs the array format of dielectric resonator, by reasonably control between each dielectric resonator away from
From relatively narrow main lobe antenna pattern width can be obtained;By forming array format, antenna axial ratio will be significantly greater than Weir gold
The dielectric resonator antenna unit of gloomy power divider feeding.
3, feed network of the invention is by being located at the four of the ground level back side Weirs for rotating feed networks and four one-to-two
The gloomy power divider composition of gold;Sequence phase feed technology allows aerial array to have good circular polarisation bandwidth and VSWR band
Width is not influenced by narrowband unit;Under centre frequency, the input/output port of Wilkinson power divider can reach
U.S. matching, and the isolation of two output ports is higher, can meet the circular polarisation as derived from two orthogonal linear polarization components
The requirement of energy.
4, the length of metal probe of the present invention for motivating Rectangular Enclosure with Participating Media resonator is arranged than Rectangular Enclosure with Participating Media resonator
It is highly much smaller, it can avoid the radiation of metal probe.
5, the design of four rectangular apertures on earth plate of the present invention can make the energy of Wilkinson power divider part
It is coupled to the upper part of antenna, is conducive to promote the indexs performances such as the beamwidth of antenna.
Detailed description of the invention
Fig. 1 is three dimensional structure diagram of the invention;
Fig. 2 is bottom elevation view of the invention;
Fig. 3 is input return loss result figure of the invention;
Figure label: 1 Rectangular Enclosure with Participating Media resonator;2 strip lines;3 metal probes;4 medium substrates;5 coaxial feeds;6 rectangles
Gap;7 round gaps;8 four rotation feed networks;The Wilkinson power divider of 9 one-to-two.
Specific embodiment
In the present embodiment, as shown in Figure 1 and Figure 2, a kind of sequence mutually presents the dielectric resonator antenna array of circular polarisation, comprising: n
A dielectric resonator 1, four rotates feed network 8, the Wilkinson power divider 9 of one-to-two, medium substrate 4, coaxial feed
5, metal probe 3, strip line 2, wherein n is even number;In the present embodiment, as shown in Figure 1, n=4;As four dielectric resonators
1, and it is located at four vertex and composition aerial array of medium substrate 4.It reasonably controls between each dielectric resonator
Distance, relatively narrow main lobe antenna pattern width will can be obtained.
As shown in Figure 1, having n dielectric resonator 1 according to cells arranged in matrix on medium substrate 4, to form antenna
Array.By way of array, dielectric resonator antenna list that antenna axial ratio feeds significantly greater than Wilkinson power divider
Member.Dielectric resonator antenna array is in higher order modeLower accurate excitation, obtains Net long wave radiation, and radiation mode remains unchanged, and
Dielectric resonator antenna can effectively improve antenna gain under higher order mode.
As shown in Figure 1, being provided with earth plate on medium substrate 4,8 round gaps 7 are set on earth plate.Circular seams
The setting of gap 7 is in order to avoid metal probe 3 contacts earth plate.
As shown in Figure 1, two No. i-th for being provided with orthogonal thereto arrangement on the side wall of any i-th of dielectric resonator 1 is band-like
Line 2.Orthogonally located strip line 2 is motivated, can produce circular polarisation field.
As shown in Figure 1, No. i-th metal probe 3 is respectively arranged in any two circle gap 7, and round gap 7
The center of circle is Chong Die with the axle center of metal probe 3;Facilitate setting on the basis of avoiding metal probe 3 from contacting earth plate.
One end of any one No. i-th metal probe 3 is in contact with one of them No. i-th strip line 2, so that metal probe
3 by the strip line 2 in the energy coupling transmitted in frequency divider to dielectric resonator side wall, to produce to Rectangular Enclosure with Participating Media resonator 1
Raw excitation.The other end of corresponding No. i-th metal probe 3 passes through medium substrate 4 and No. i-th Wilkinson power divider 9
An output end in two frequency dividers is connected so that metal probe 3 can get by frequency divider transmission Lai energy.
As shown in Fig. 2, four rotation feed networks 8 are connected with No. i-th Wilkinson power divider 9 and are respectively positioned on medium
The back side of substrate 4, four rotation feed networks 8 allow aerial array to have good circular polarisation bandwidth and VSWR bandwidth, not by narrow
The influence of tape cell.And one kind of the bandwidth and polarization purity of sequence rotation technique strictly raising circular polarized antenna and array is most
Effective method, and can also be well applied to other kinds of antenna, to eliminate the defect of performance characteristics.In No. i-th prestige
I-th of rectangular aperture 6 is offered on the earth plate of 9 top of Er Jinsen power divider.The input of Wilkinson power divider 9
Output port can reach perfect matching, and the isolation of two output ports is higher.The setting of rectangular aperture 6 can make Weir golden
The energy coupling of gloomy power divider part is conducive to promote the indexs performances such as the beamwidth of antenna to the top half of antenna.
As shown in Fig. 2, four rotation feed networks 8 receive the energy that coaxial feed 5 is transmitted and are fed to all Wilkinsons
The input terminal of two frequency dividers of power divider 9 can avoid the influence of aerial radiation by the way of coaxial feed 5, reduce
The dispersion phenomenon of generation reduces parasitic radiation.Reduce characteristic impedance in microstrip line or strip line feed structure to be easy with frequency
The variation of rate and the phenomenon that change, be easy to match, and process also more convenient.It is distributed in No. i-th Wilkinson power
The effect of intercoupling is formed between device 9 and i-th of rectangular aperture 6, so that excitation is generated to i-th of dielectric resonator 1, thus structure
At the major part of array antenna feed network.
Dielectric resonator antenna array is with n Rectangular Enclosure with Participating Media resonator 1 for radiation area, is with metal probe 3 and strip line 2
Transmission range rotates feed network 8 with coaxial feed 5, four and Wilkinson power divider 9 is feed area, to utilize radiation
Sending and receiving for energy is realized in area, transmission range and feed area.
As shown in Figure 1, n dielectric resonator 1 is rectangle.Dielectric resonator can have cross polarization using the form of rectangle
Advantage low and convenient for production.Can achieve by improving dielectric constant reduces the purposes of antenna overall dimensions, and drop appropriate
The relative dielectric constant of low medium, and the radiation of electromagnetic energy can be maintained in a relatively wide frequency range.
As shown in figure 3, the aerial array is in 2.37-4.34GHz frequency range, input echo damage by emulation testing
Consumption, i.e. S11 are respectively less than -10, that is to say, that the band of operation of the aerial array is 2.37-4.34GHz, and it is right in engineering to meet
The requirement of antenna input return loss.Return loss is to indicate the parameter of signal reflex performance.Return loss illustrates incident power
A part be reflected back to signal source, be generally the bigger the better.
In conclusion the dielectric resonator antenna array is wanted according to index of the modern communications technology to circular polarisation communication system
It asks, the antenna designed is with good performance in terms of impedance bandwidth and axial ratio bandwidth, while having relatively narrow main lobe radiation
The advantages that directional diagram width, higher gain, be able to achieve 53.7% impedance bandwidth, 51.1% 3dBAR bandwidth and
12.6dBic peak gain.
Claims (4)
1. a kind of sequence mutually presents the dielectric resonator antenna array of circular polarisation, it is characterized in that including: n dielectric resonator (1), four rotations
Turn feed network (8), the Wilkinson power divider (9) of one-to-two, medium substrate (4), coaxial feed (5), metal probe
(3), strip line (2), wherein n is even number;
There is n dielectric resonator (1) according to cells arranged in matrix on the medium substrate (4), to form aerial array;
It is provided with earth plate on the medium substrate (4), 2n round gap (7) is set on the earth plate;
Two No. i-th strip lines (2) of orthogonal thereto arrangement are provided on the side wall of any i-th of dielectric resonator (1);
It is respectively arranged with No. i-th metal probe (3) in any two circle gap (7), any one No. i-th metal probe
(3) one end is in contact with one of them No. i-th strip line (2), and the other end of corresponding No. i-th metal probe (3), which passes through, to be situated between
Matter substrate (4) is connected with an output end in two frequency dividers of No. i-th Wilkinson power divider (9);
Four rotation feed network (8) is connected with No. i-th Wilkinson power divider (9) and is respectively positioned on the medium base
The back side of plate (4) offers i-th of rectangular aperture (6) on the earth plate above No. i-th Wilkinson power divider (9);
Four rotation feed network (8) receives the energy of coaxial feed (5) transmission and is fed to all Wilkinson function
The input terminal of two frequency dividers of rate distributor (9), and in No. i-th Wilkinson power divider (9) and i-th of rectangle
The effect of intercoupling is formed between gap (6), to generate excitation to i-th of dielectric resonator (1);
The dielectric resonator antenna array is with the n Rectangular Enclosure with Participating Media resonator (1) for radiation area, with the metal probe
(3) and strip line (2) is transmission range, with the coaxial feed (5), four rotations feed network (8) and Wilkinson power distribution
Device (9) is feed area, to realize sending and receiving for energy using the radiation area, transmission range and feed area.
2. dielectric resonator antenna array according to claim 1, characterized in that the n dielectric resonator (1) is four
Dielectric resonator (1), and it is located at four vertex and composition aerial array of the medium substrate (4).
3. dielectric resonator antenna array according to claim 1, characterized in that the n dielectric resonator (1) is square
Shape.
4. dielectric resonator antenna array according to claim 1, it is characterized in that: the center of circle of the circle gap (7) and gold
Belong to the axle center overlapping of probe (3).
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111541025A (en) * | 2020-04-10 | 2020-08-14 | 华南理工大学 | Circularly polarized multi-input multi-output dielectric resonator antenna |
CN111638268A (en) * | 2020-07-03 | 2020-09-08 | 广东工业大学 | Metal crack detection method and device based on dielectric resonator array |
CN111834739A (en) * | 2020-07-14 | 2020-10-27 | 南通大学 | Four-mode broadband high-gain differential dielectric resonator antenna |
CN111883912A (en) * | 2020-06-24 | 2020-11-03 | 南京邮电大学 | Ultra-wideband circularly polarized dielectric resonator antenna array |
CN112151963A (en) * | 2020-09-04 | 2020-12-29 | 大富科技(安徽)股份有限公司 | Base station antenna without isolation strip |
CN112271438A (en) * | 2020-10-23 | 2021-01-26 | 汕头大学 | Slot-fed circularly polarized omnidirectional dielectric resonator antenna |
CN112736438A (en) * | 2020-12-23 | 2021-04-30 | 同济大学 | Dual-band dielectric resonant antenna with optimized super-surface circular polarization |
CN112751210A (en) * | 2020-12-29 | 2021-05-04 | 瑞声新能源发展(常州)有限公司科教城分公司 | Antenna assembly, antenna device and communication terminal |
CN113394553A (en) * | 2021-06-16 | 2021-09-14 | 维沃移动通信有限公司 | Electronic device |
CN113506989A (en) * | 2021-07-23 | 2021-10-15 | 上海安费诺永亿通讯电子有限公司 | 5G millimeter wave dielectric resonator antenna and array thereof |
CN113659309A (en) * | 2020-05-12 | 2021-11-16 | 西安电子科技大学 | Antenna device and electronic apparatus |
CN113722777A (en) * | 2021-07-13 | 2021-11-30 | 深圳市信维通信股份有限公司 | Antenna design method and terminal |
CN113889764A (en) * | 2020-07-02 | 2022-01-04 | 苹果公司 | Dielectric resonator antenna module |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN111541025A (en) * | 2020-04-10 | 2020-08-14 | 华南理工大学 | Circularly polarized multi-input multi-output dielectric resonator antenna |
CN113659309A (en) * | 2020-05-12 | 2021-11-16 | 西安电子科技大学 | Antenna device and electronic apparatus |
CN111883912A (en) * | 2020-06-24 | 2020-11-03 | 南京邮电大学 | Ultra-wideband circularly polarized dielectric resonator antenna array |
CN111883912B (en) * | 2020-06-24 | 2022-11-11 | 南京邮电大学 | Ultra-wideband circularly polarized dielectric resonator antenna array |
CN113889764A (en) * | 2020-07-02 | 2022-01-04 | 苹果公司 | Dielectric resonator antenna module |
CN111638268A (en) * | 2020-07-03 | 2020-09-08 | 广东工业大学 | Metal crack detection method and device based on dielectric resonator array |
CN111638268B (en) * | 2020-07-03 | 2024-03-26 | 广东工业大学 | Metal crack detection method and device based on dielectric resonator array |
CN111834739A (en) * | 2020-07-14 | 2020-10-27 | 南通大学 | Four-mode broadband high-gain differential dielectric resonator antenna |
CN112151963A (en) * | 2020-09-04 | 2020-12-29 | 大富科技(安徽)股份有限公司 | Base station antenna without isolation strip |
CN112271438B (en) * | 2020-10-23 | 2022-12-06 | 汕头大学 | Slot-fed circularly polarized omnidirectional dielectric resonator antenna |
CN112271438A (en) * | 2020-10-23 | 2021-01-26 | 汕头大学 | Slot-fed circularly polarized omnidirectional dielectric resonator antenna |
CN112736438A (en) * | 2020-12-23 | 2021-04-30 | 同济大学 | Dual-band dielectric resonant antenna with optimized super-surface circular polarization |
CN112751210A (en) * | 2020-12-29 | 2021-05-04 | 瑞声新能源发展(常州)有限公司科教城分公司 | Antenna assembly, antenna device and communication terminal |
CN113394553A (en) * | 2021-06-16 | 2021-09-14 | 维沃移动通信有限公司 | Electronic device |
CN113722777A (en) * | 2021-07-13 | 2021-11-30 | 深圳市信维通信股份有限公司 | Antenna design method and terminal |
CN113722777B (en) * | 2021-07-13 | 2023-08-11 | 深圳市信维通信股份有限公司 | Antenna design method and terminal |
CN113506989A (en) * | 2021-07-23 | 2021-10-15 | 上海安费诺永亿通讯电子有限公司 | 5G millimeter wave dielectric resonator antenna and array thereof |
CN113506989B (en) * | 2021-07-23 | 2024-04-12 | 上海安费诺永亿通讯电子有限公司 | 5G millimeter wave dielectric resonator antenna and array thereof |
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