CN106450731A - Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs - Google Patents
Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs Download PDFInfo
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- CN106450731A CN106450731A CN201610956864.XA CN201610956864A CN106450731A CN 106450731 A CN106450731 A CN 106450731A CN 201610956864 A CN201610956864 A CN 201610956864A CN 106450731 A CN106450731 A CN 106450731A
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- dielectric
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- layer dielectric
- vivaldi antenna
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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
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
- H01Q13/085—Slot-line radiating ends
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0485—Dielectric resonator antennas
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Abstract
The invention relates to a broadband high gain Vivaldi antenna for loading grooved dielectric-slabs, and belongs to the technical field of wireless communication. The broadband high gain Vivaldi antenna for loading the grooved dielectric-slabs comprise the upper-layer dielectric-slab, the middle-layer dielectric-slab and the lower-layer dielectric-slab, an exponential tapered line antipodal structure Vivaldi antenna of substrate integrated waveguide (SIW) feed is printed on the middle layer dielectric-slab, the upper-layer dielectric-slab and lower-layer dielectric-slab are symmetrically loaded on both sides of the middle-layer dielectric-slab, the thickness of the upper-layer dielectric-slab and the thickness of the lower-layer dielectric-slab are linearly-gradient, and the upper-layer dielectric-slab and the lower layer dielectric-slab are provided with periodically-gradient rectangular grooves. The broadband high gain Vivaldi antenna for loading the grooved dielectric-slabs have the advantages of being simple in structure, compact in size, low in cost, wide in band width, high in gain, stable in radiation characteristic and the like, and is applicable to the fields of spacecrafts, radars and the like.
Description
Technical field
The present invention relates to the wide band high-gain Vivaldi antenna of fluting dielectric-slab is loaded, belong to wireless communication technology field.
Background technology
Vivaldi antenna is a kind of end-fire travelling-wave aerial of gradual change, has obtained extensively over more than 30 years so far are proposed
Research, especially in microstrip circuit, micro-strip Vivaldi antenna be used for constituting array maturely applied logical in satellite
The fields such as news, magnetography, rebecca.Vivaldi antenna is due to the slot line structure of its gradual change so as to can have very wide
Impedance bandwidth, in addition, it also has, and secondary lobe is low, high gain.Electromagnetic horn of high-gain etc. is compared in structure
Simple, and size is little, cheap for manufacturing cost.
In recent years, with the rise of millimetric wave device research and the development of substrate integrated circuit, Vivaldi antenna also exists
Millimere-wave band application substrate IC design is devised, and wherein, anti-pode type Vivaldi antenna amount is most.In order to enter
One step improves the performance of Vivaldi antenna, and research worker has carried out new design on antenna structure, but these designs are most
One is had to what is common is that the length for increasing antenna, increasing antenna length makes antenna more preferable in working band interior resonance effect, with
When directionality also lifted.But, it is exactly the size for considerably increasing antenna that this also brings a problem, and integrated difficulty enters one
Step is increased.In the present invention, we pass through to load cheap FR4 Epoxy dielectric-slab, and carry out spy to dielectric-slab structure
Fixed design so that the resonance performance of antenna significantly improves, while gain is also improved significantly.
The width high-gain Vivaldi antenna of the loading fluting dielectric-slab of present invention design, by literature search, has no and this
Invention identical discloses report.
Content of the invention
It is an object of the invention to overcoming the deficiency of prior art, the wide band high-gain for loading fluting dielectric-slab is designed
Vivaldi antenna.
The wide band high-gain Vivaldi antenna of the loading fluting dielectric-slab in the present invention is made up of following 6 part：Intermediate layer
Dielectric-slab, top dielectric plate, layer dielectric plate, radiant body, feed element structure, rectangular channel array, wherein：
A. interlayer plate is rectangle dielectric-slab of rectangle dielectric-slab, the levels dielectric-slab for thickness linear gradient；
B. the upper and lower surface of interlayer plate is printed with the radiant body of anti-pode structure, its arc side exponentially gradual change；Feed element
Structure is made up of SIW feed structure and gradual change shaped microstrip feed structure；The anti-pode structural radiation body of exponential fade and SIW feed knot
Structure is connected, and SIW feed structure is connected with gradual change shaped microstrip feed structure；
C. top dielectric plate and layer dielectric plate, thickness is linearly increasing from right to left, and specification is consistent, and with regard to interlayer
Plate axisymmetricly relation；
D. rectangular channel array opens the right-hand member of top dielectric plate in thickness linear gradient and layer dielectric plate, rectangular channel battle array respectively
Column unit length is in periodicity gradual change, and the array of ascending incremented by successively, and rectangular channel from right to left with interlayer plate is
Axle, axisymmetricly；
E. interlayer plate, top dielectric plate and layer dielectric plate are bonded together by pressing technology, and top dielectric
Plate, layer dielectric plate right-hand member and interlayer plate right alignment.
The anti-pode structural radiation body of the exponential fade, SIW feed structure and gradual change shaped microstrip feed structure are constituted and are loaded
The main body of the wide band high-gain Vivaldi antenna of fluting dielectric-slab, antenna body is loaded with thickness linear gradient up and down and has
The dielectric-slab of length cycles gradual change rectangular channel；The rectangle of length cycles increase is opened on the dielectric-slab of thickness linear gradient
Groove, makes antenna gain increased 3.2dB, load fluting dielectric-slab make Vivaldi antenna improve Antenna Operation bandwidth, gain and
Irradiation stability, total working bandwidth reaches 20GHz, and average gain reaches 9.92dBi, and directional diagram E face and H face are quite similar, have
Good irradiation stability.
The present invention is had the advantage that compared with existing Vivaldi antenna：
1. antenna size is little, simple structure, can meet the requirement of antenna miniaturization well；
2. the thickness of new loading in gradual change shape and has the dielectric-slab of periodicity gradual change rectangular channel, with low cost, makes aerial radiation
The advantages of gain is obviously improved, radiation characteristic is stable；
3. antenna have good high-gain and radiation characteristic stable the features such as, by loading the fluting medium of upper and lower two-layer gradual change
Plate, obtains the working frequency range of 25GHz-45GHZ, a width of 20GHz of total working band, in bandwidth of operation, antenna average gain
9.92dBi, and the E face of antenna and H face are quite similar, radiation characteristic has good stability；
4. low manufacture cost, high precision, favorable repeatability, are easy to batch production.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the interlayer plate surface structure schematic diagram of the present invention.
Fig. 3 is the interlayer plate lower surface configuration schematic diagram of the present invention.
Fig. 4 is the levels dielectric-slab top view of the present invention.
Fig. 5 is antenna return loss in the present invention（S11）Simulation result.
Fig. 6 is antenna gain in the present invention（Gain）Simulation result.
Fig. 7 is the emulation directional diagram in present invention E face and H face in 29GHz.
Fig. 8 is the emulation directional diagram in present invention E face and H face in 34GHz.
Fig. 9 is the emulation directional diagram in present invention E face and H face in 38GHz.
Figure 10 is the emulation directional diagram in present invention E face and H face in 41GHz.
Specific embodiment
With reference to specific embodiment, technical scheme is described in more detail.
As shown in figure 1, the wide band high-gain Vivaldi antenna of the loading fluting dielectric-slab in the present invention is by following 6 part
Composition：Interlayer plate 1, top dielectric plate 2, layer dielectric plate 3, radiant body 4,5, feed element structure 6,7, rectangular channel battle array
Row 8,9, wherein：
A. interlayer plate 1 is rectangle medium of rectangle dielectric-slab, the levels dielectric-slab 2,3 for thickness linear gradient
Plate；
B. the upper and lower surface of interlayer plate 1 is printed with the radiant body 4,5 of anti-pode structure, its arc side exponentially gradual change；Feed
Cellular construction 6,7 is made up of SIW feed structure 6 and gradual change shaped microstrip feed structure 7；The anti-pode structural radiation body 4 of exponential fade,
5 are connected with SIW feed structure 6, and SIW feed structure 6 is connected with gradual change shaped microstrip feed structure 7；
C. top dielectric plate 2 and layer dielectric plate 3, thickness is linearly increasing from right to left, and specification is consistent, and is situated between with regard to intermediate layer
The axisymmetricly relation of scutum 1；
D. rectangular channel array 8,9 opens the right-hand member of top dielectric plate 2 in thickness linear gradient and layer dielectric plate 3, rectangle respectively
Groove array element length is in periodicity gradual change, and the array of ascending incremented by successively, and rectangular channel from right to left 8,9 is situated between with intermediate layer
Scutum 1 is axle, axisymmetricly；
E. interlayer plate 1, top dielectric plate 2 and layer dielectric plate 3 are bonded together by pressing technology, and upper strata is situated between
Scutum 2,3 right-hand member of layer dielectric plate and 1 right alignment of interlayer plate.
In the present invention, Vivaldi antenna has good gain and directional characteristic, and dielectric-slab 1 is 2.2 using dielectric constant
With 5880 dielectric material of Rogers that loss angle tangent is 0.0009, its a size of 28mm × 8mm × 0.508mm, dielectric-slab 2,
The FR4 dielectric material that 3 is 4.4 using dielectric constant and loss angle tangent is 0.02, its a length of 18.25mm, a width of 8mm, thickness
From 2mm linear gradient to 0.5mm, the length that levels dielectric-slab right-hand member has is in the rectangular channel of periodicity gradual change, its length
Degree ascending incremented by successively from right to left, minimum rectangle flute length is 2.44mm, a width of 0.5mm, the length of rectangular channel from the right side to
Turn left incremented by successively 0.8mm, separation be；The simulation result of antenna return loss as shown in figure 5, simulation result shows,
By loading the dielectric-slab of upper and lower thickness degree linear gradient, the Vivaldi antenna obtains the working frequency range of the dB of S11≤- 10 and is：
25GHz-45GHz, a width of 20GHz of total working band, bandwidth is very wide；Length cycles are opened on the dielectric-slab of thickness linear gradient
The rectangular channel of increase, makes antenna gain increased 3.2dB, the simulation result of antenna gain as shown in fig. 6, simulation result shows,
In bandwidth of operation, the Vivaldi antenna gain is upper and lower in 10dB, with very high gain；Antenna 29GHz, 34GHz,
The Direction Pattern Simulation result of 38GHz and 41GHz is as shown in Fig. 7-Figure 10, and simulation result shows, the E face of the Vivaldi antenna and H
Face is quite similar, and radiation characteristic has good stability.
Claims (4)
1. the wide band high-gain Vivaldi antenna of fluting dielectric-slab is loaded, it is characterised in that included：Interlayer plate（1）,
Top dielectric plate（2）, layer dielectric plate（3）, radiant body（4）、（5）, feed element structure（6）、（7）, rectangular channel（8）、（9）,
Wherein：
A. interlayer plate（1）For rectangle dielectric-slab, levels dielectric-slab（2）、（3）For the rectangular of thickness linear gradient
Shape dielectric-slab；
B. interlayer plate（1）Upper and lower surface be printed with the radiant body of anti-pode structure（4）、（5）, its arc side is exponentially gradually
Become；Feed element structure（6）、（7）By SIW feed structure（6）With gradual change shaped microstrip feed structure（7）Composition；Exponential fade
Anti-pode structural radiation body（4）、（5）With SIW feed structure（6）It is connected, SIW feed structure（6）With gradual change shaped microstrip feed structure
（7）It is connected；
C. top dielectric plate（2）With layer dielectric plate（3）, thickness is linearly increasing from right to left, and specification is consistent, and with regard to centre
Layer dielectric-slab（1）Axisymmetricly relation；
D. rectangular channel array（8）、（9）Top dielectric plate in thickness linear gradient is opened respectively（2）With layer dielectric plate（3）'s
Right-hand member, rectangular channel array element length is in periodicity gradual change, the array of ascending incremented by successively, and rectangular channel from right to left（8）、
（9) with interlayer plate（1）For axle, axisymmetricly；
E. interlayer plate（1）, top dielectric plate（2）With layer dielectric plate（3）It is bonded together by pressing technology, and
Top dielectric plate（2）, layer dielectric plate（3）Right-hand member and interlayer plate（1）Right alignment.
2. according to claim 1 load fluting dielectric-slab wide band high-gain Vivaldi antenna, it is characterised in that：Institute
Rheme is in the dielectric-slab of gradient thickness（2）、（3）On length of periodicity gradual change rectangular channel（8）、（9）Ascending from right to left
Incremented by successively, minimum rectangle flute length be 2.44mm, a width of 0.5mm, the length of rectangular channel from the right side to incremented by successively 0.8mm of turning left,
Separation is 0.5mm.
3. according to claim 1,2 loading fluting dielectric-slab wide band high-gain Vivaldi antenna, it is characterised in that：
The dielectric-slab（2）、（3）For gradual change shape, thickness is from 2mm linear gradient to 0.5mm.
4. the wide band high-gain Vivaldi antenna of the loading fluting dielectric-slab according to claim 1,2,3, its feature exists
In：The dielectric-slab（1）5880 dielectric material of Rogers that using dielectric constant be 2.2 and loss angle tangent is 0.0009, its
A size of 28 mm × 8 mm × 0.528mm, dielectric-slab（2）、（3）Using dielectric constant be 4.4 and loss angle tangent is 0.02
FR4 dielectric material, its a length of 18.25mm, a width of 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956864.XA CN106450731A (en) | 2016-11-03 | 2016-11-03 | Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956864.XA CN106450731A (en) | 2016-11-03 | 2016-11-03 | Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs |
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| CN106450731A true CN106450731A (en) | 2017-02-22 |
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| CN201610956864.XA Pending CN106450731A (en) | 2016-11-03 | 2016-11-03 | Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834188A (en) * | 2017-11-27 | 2018-03-23 | 南京华讯方舟通信设备有限公司 | The high-gain Vivaldi antenna elements and aerial array of miniature size |
| CN109326892A (en) * | 2018-11-22 | 2019-02-12 | 江苏贝孚德通讯科技股份有限公司 | Millimeter wave antenna array element, aerial array, communication device |
| CN109888469A (en) * | 2019-01-02 | 2019-06-14 | 南京邮电大学 | High-gain planar tapered slot antenna |
| CN111009730A (en) * | 2019-12-03 | 2020-04-14 | 西安电子科技大学 | Opposite-extension Vivaldi antenna with substrate integrated double-ridge waveguide feed and application |
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| US6842154B1 (en) * | 2003-07-29 | 2005-01-11 | Bae Systems Information And Electronic Systems Integration | Dual polarization Vivaldi notch/meander line loaded antenna |
| CN202308287U (en) * | 2011-10-20 | 2012-07-04 | 东南大学 | Antipodal vivaldi pulse antenna with tree-shaped connecting lines, non-coplanar delay lines and resistance loads |
| CN105206937A (en) * | 2015-08-31 | 2015-12-30 | 合肥工业大学 | Micro coaxial structure-based vivaldi ultra-wide band antenna |
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2016
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Patent Citations (5)
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| US6842154B1 (en) * | 2003-07-29 | 2005-01-11 | Bae Systems Information And Electronic Systems Integration | Dual polarization Vivaldi notch/meander line loaded antenna |
| CN202308287U (en) * | 2011-10-20 | 2012-07-04 | 东南大学 | Antipodal vivaldi pulse antenna with tree-shaped connecting lines, non-coplanar delay lines and resistance loads |
| CN105337030A (en) * | 2014-08-08 | 2016-02-17 | 中电科微波通信(上海)有限公司 | Vivaldi antenna and antenna apparatus |
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Non-Patent Citations (1)
| Title |
|---|
| CHAOJUN MA ; DONGYA SHEN ; MING DONG ; JUN SU: "A slotted dielectric substrate loaded broadband Vivaldi antenna fed by SIW", 《2016 11TH INTERNATIONAL SYMPOSIUM ON ANTENNAS, PROPAGATION AND EM THEORY (ISAPE)》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834188A (en) * | 2017-11-27 | 2018-03-23 | 南京华讯方舟通信设备有限公司 | The high-gain Vivaldi antenna elements and aerial array of miniature size |
| CN107834188B (en) * | 2017-11-27 | 2023-09-19 | 武汉华讯国蓉科技有限公司 | High-gain Vivaldi antenna unit with miniaturized size and antenna array |
| CN109326892A (en) * | 2018-11-22 | 2019-02-12 | 江苏贝孚德通讯科技股份有限公司 | Millimeter wave antenna array element, aerial array, communication device |
| CN109888469A (en) * | 2019-01-02 | 2019-06-14 | 南京邮电大学 | High-gain planar tapered slot antenna |
| CN109888469B (en) * | 2019-01-02 | 2020-08-11 | 南京邮电大学 | High-gain planar gradual change slot line antenna |
| CN111009730A (en) * | 2019-12-03 | 2020-04-14 | 西安电子科技大学 | Opposite-extension Vivaldi antenna with substrate integrated double-ridge waveguide feed and application |
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