CN106961022A - Miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure - Google Patents
Miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure Download PDFInfo
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- CN106961022A CN106961022A CN201710201736.9A CN201710201736A CN106961022A CN 106961022 A CN106961022 A CN 106961022A CN 201710201736 A CN201710201736 A CN 201710201736A CN 106961022 A CN106961022 A CN 106961022A
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- China
- Prior art keywords
- paster
- miniaturization
- antenna
- yagi aerial
- electromagnetic structure
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Classifications
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- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- Waveguide Aerials (AREA)
Abstract
A kind of miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure, belongs to antenna technical field.The antenna is made up of sandwich construction:Metal ground plate, layer dielectric, metallic intermediate layer paster EBG arrays, top dielectric, top-level metallic paster are followed successively by from bottom to top.EBG structures are introduced in the micro-strip yagi aerial that the present invention is provided so that the feature of micro-strip yagi aerial is more obvious, increases the main lobe deviation angle of conventional microstrip yagi aerial;The Miniaturization Design of antenna can be also realized, under identical overall dimensions, working frequency points can be achieved and are moved to low frequency.
Description
Technical field
The invention belongs to field of antenna, and in particular to a kind of miniaturization slant beam micro-strip eight based on manual electromagnetic structure
Wooden antenna.
Background technology
A kind of nineteen twenty-six, the parasitic line array of parallel element is suggested, and is referred to as yagi-uda by later age, indirect
The array element of excitation by near-field coupling from it is active it is first from encouraged.Yagi aerial it is simple in construction and with preferable directionality and
Higher gain, thus be widely used in metric wave, the radar of decimeter range, communication, TV and other radiotechnics equipment;
But because its section is higher, it is difficult to which the synthesis of effective and other devices is used, limit its application in microwave and millimeter wave section.
J.Huang proposed micro-strip yagi aerial in first time in 1989, had been provided simultaneously with the spy of half-wave dipole class antenna
Point and the small volume of microstrip structure, lightweight, section are low, with planar structure and be easy to and the carrier such as guided missile, satellite
The advantages of surface is conformal, it studies the interest for also increasingly causing people.
2015, the one kind that proposes such as clear was opened based on substrate integration wave-guide (SIW), with vertical polarization slant beam characteristic
Micro-strip magnetic yagi aerial, the antenna use micro-strip line side present method, do not reflect paster, director number is more so that
Cause the overall size of antenna larger.1999, D.Sievenpiper proposed the electro-magnetic bandgap microstrip structure of high impedance surface,
There is same-phase reflection characteristic to the plane wave of vertical incidence, people are referred to as artificial magnetic conductor (AMC), and the structure both can be real
Existing low section, and miniaturization can be realized.But current AMC is only capable of realizing the miniaturization of device, reduction section, can not realize antenna
The inclination of wave beam.
The content of the invention
In order to solve defect of the prior art, the present invention is changed on the basis of original micro-strip yagi aerial structure
Enter, by introducing manual electromagnetic structure-EBG arrays, it is proposed that a kind of Mini Microstrip Yagi spark gap day based on manual electromagnetic structure
Line.The antenna has low section simultaneously, miniaturization, the multiple advantage such as wave beam tiltable.
The concrete technical scheme of the present invention is as follows:
A kind of miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure, it is characterised in that the antenna by
Sandwich construction is constituted:Metal ground plate, layer dielectric, metallic intermediate layer paster EBG arrays are followed successively by from bottom to top, and upper strata is situated between
Matter, top-level metallic paster;The metal patch EBG arrays in the intermediate layer are the metal patch array of square, its cellular construction
The length of side be that gap between 1/10 times of operation wavelength, cellular construction is the 1/10~1/5 of the cellular construction length of side.
Further, the metal patch of top layer is completely covered in the metal patch EBG arrays in the intermediate layer.
Further, the metal patch of the top layer by square structure reflection paster, guide paster and radiation patch into
Composition, radiation patch is located at reflection paster and guided between paster.
Further, the reflection paster length of side in top-level metallic paster is more than 1/2 times of operation wavelength, and the radiation patch length of side is
1/3~1/2 times of operation wavelength, it is small to guide paster side ratio radiation patch into, is 1/4~1/3 times of operation wavelength;Reflect paster and spoke
The spacing penetrated between paster is 1/10 times of operation wavelength, and the spacing guided between paster and radiation patch is 1/7 times of operation wavelength.
Further, the antenna uses 50 ohm of coaxial feed;The coaxial feed is arranged at upper strata radiation patch
Diagonal on, from about 1/10 times operating wave strong point with a distance from center of antenna.
Beneficial effects of the present invention are:
1st, EBG knots are introduced in the miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure that the present invention is provided
Structure so that the feature of micro-strip yagi aerial is more obvious, increases the main lobe deviation angle of conventional microstrip yagi aerial.
2nd, the intermediate layer for the miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure that the present invention is provided is
Metal patch EBG arrays, can be achieved the Miniaturization Design of antenna, under identical overall dimensions, and working frequency points can be achieved to low
Frequency displacement is moved.
3. the intermediate layer for the miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure that the present invention is provided is
Metal patch EBG arrays, can make antenna that there is more preferable port Impedance to match.
Brief description of the drawings
Diagrammatic cross-sections of the Fig. 1 for the antenna of the invention provided along the narrow side of medium substrate;
The structural representation of the metal patch array in the antenna intermediate layer that Fig. 2 provides for the present invention;
The structural representation of the metal patch for the antenna top layer that Fig. 3 provides for the present invention;
Fig. 4 is the return loss of the antenna without EBG structures;
The return loss of the antenna for the band EBG structures that Fig. 5 provides for embodiment;
Fig. 6 is the antenna pattern of the antenna without EBG structures;
The antenna pattern of the antenna for the band EBG structures that Fig. 7 provides for embodiment.
Embodiment
A kind of miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure, as shown in figure 1, the antenna is by more
Rotating fields are constituted:It is followed successively by metal ground plate, layer dielectric, metallic intermediate layer paster EBG arrays from bottom to top, top dielectric,
Top-level metallic paster.Bottom is metal ground plate, with single feeding port;Layer dielectric thickness is according to working frequency and dielectric-slab
Relative dielectric constant determine;Intermediate layer is square metal patch EBG arrays, as shown in Fig. 2 the length of side of its cellular construction
For 1/10 times of operation wavelength, the gap between cellular construction is the 1/10~1/5 of the cellular construction length of side;Top dielectric thickness is far small
In operation wavelength, typically smaller than the 1/100 of operation wavelength times;Top layer is metal patch, by reflection paster, guides paster and radiation into
Paster is constituted, as shown in figure 3, wherein, the reflection paster length of side is more than 1/2 times of operation wavelength, the radiation patch length of side is 1/3~1/2
Times operation wavelength, it is small to guide paster side ratio radiation patch into, is 1/4~1/3 operation wavelength, between reflection paster and radiation patch
Spacing be 1/10 times of operation wavelength, the spacing guided between paster and radiation patch is 1/7 times of operation wavelength.The antenna is used
50 ohm of coaxial feed;The coaxial feed is arranged on the diagonal of upper strata radiation patch, from a distance from center of antenna be 1/
10 times of operating wave strong points.
Embodiment
The antenna performance to the present invention selectes working frequency 2.6GHz progress based on manual electromagnetic structure under vacuum conditions
Miniaturization slant beam micro-strip yagi aerial design and simulation.Wherein, the relative dielectric constant 4.02 of medium substrate, upper strata is situated between
0.4 millimeter of matter thickness, 2.6 millimeters of lower floor, metallic intermediate layer EBG patch arrays are 17*5 square-shaped metal patch arrays, metal
The cellular construction length of side of EBG patch arrays is 5-6mm, and cellular construction gap is 0.5-1mm.Reflection patch in top-level metallic paster
Piece size dimension is 28.7mm, guides paster size dimension 16.7mm into, and the radiation patch length of side is 20.7mm;Reflect paster and radiation
Paster spacing 6-7mm, guides paster and radiation patch spacing 9-9.5mm into.Antenna uses 50 ohm of coaxial feed;It is described coaxial
Feed be arranged on the diagonal of top layer radiation patch, from center of antenna with a distance from be 4.67mm.
Using the micro-strip yagi aerial without EBG structures as a comparison, contrast antenna is in addition to not comprising EBG structures, remaining knot
Structure and parameter are same as the previously described embodiments.Obtain without EBG structures and embodiment antenna structure respective working frequency points echo
Loss and antenna pattern are as shown in Fig. 4 to Fig. 7.It is real under identical medium substrate and appearance and size from Fig. 4 to Fig. 7
The working frequency for applying the antenna of example structure containing EBG is reduced to 2.6GHz by 3.3GHz, effectively realizes the miniaturization of antenna;Implement
The return loss of the antenna of example structure containing EBG is smaller, is reduced to -18.15dB from -13.21dB, preferably realizes antenna
Match somebody with somebody;The main beam direction deviation angle of the antenna of embodiment structure containing EBG increases to 63 degree from 34 degree.The present invention uses EBG structures
In yagi aerial, the main lobe drift angle of antenna can be increased while antenna miniaturization is realized, available for needing the people of directed radiation
With or military domain navigation and communication.
Claims (5)
1. a kind of miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure, it is characterised in that the antenna is by more
Rotating fields are constituted:Metal ground plate, layer dielectric, metallic intermediate layer patch array, top dielectric, top layer are followed successively by from bottom to top
Metal patch;The metal patch array in the intermediate layer is the metal patch array of square, and the length of side of its cellular construction is 1/
Gap between 10 times of operation wavelengths, cellular construction is the 1/10~1/5 of the cellular construction length of side.
2. the miniaturization slant beam micro-strip yagi aerial according to claim 1 based on manual electromagnetic structure, its feature
Be, the metal patch of the top layer by square structure reflection paster, guide paster into and radiation patch is constituted.
3. the miniaturization slant beam micro-strip yagi aerial according to claim 2 based on manual electromagnetic structure, its feature
It is that the reflection paster length of side in top-level metallic paster is more than 1/2 times of operation wavelength, the radiation patch length of side is 1/3~1/2 times of work
Make wavelength, it is 1/4~1/3 times of operation wavelength to guide the paster length of side into;The spacing reflected between paster and radiation patch is 1/10 times
Operation wavelength, the spacing guided between paster and radiation patch is 1/7 times of operation wavelength.
4. the miniaturization slant beam micro-strip yagi aerial according to claim 1 based on manual electromagnetic structure, its feature
It is that the antenna uses 50 ohm of coaxial feed.
5. the miniaturization slant beam micro-strip yagi aerial according to claim 4 based on manual electromagnetic structure, its feature
It is that the coaxial feed is arranged at from being 1/10 times of operating wave strong point with a distance from center of antenna.
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CN201710201736.9A CN106961022A (en) | 2017-03-30 | 2017-03-30 | Miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure |
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CN201710201736.9A CN106961022A (en) | 2017-03-30 | 2017-03-30 | Miniaturization slant beam micro-strip yagi aerial based on manual electromagnetic structure |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110957582A (en) * | 2019-12-25 | 2020-04-03 | 武汉灵动时代智能技术股份有限公司 | Compact coupling metamaterial structure |
CN113178670A (en) * | 2021-05-13 | 2021-07-27 | 上海大学 | Novel printed circuit board slow wave transmission line |
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US6496155B1 (en) * | 2000-03-29 | 2002-12-17 | Hrl Laboratories, Llc. | End-fire antenna or array on surface with tunable impedance |
US20050057420A1 (en) * | 2003-09-15 | 2005-03-17 | Lin Xintian E. | Low profile sector antenna configuration |
CN101330170A (en) * | 2008-07-31 | 2008-12-24 | 黄俊青 | Ultra short span quasi-eight-wood metal-resistant antenna and electronic label using the same |
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2017
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Patent Citations (4)
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US6496155B1 (en) * | 2000-03-29 | 2002-12-17 | Hrl Laboratories, Llc. | End-fire antenna or array on surface with tunable impedance |
US20050057420A1 (en) * | 2003-09-15 | 2005-03-17 | Lin Xintian E. | Low profile sector antenna configuration |
CN101330170A (en) * | 2008-07-31 | 2008-12-24 | 黄俊青 | Ultra short span quasi-eight-wood metal-resistant antenna and electronic label using the same |
CN103326119A (en) * | 2013-06-28 | 2013-09-25 | 电子科技大学 | Miniature micro-strip magnet antenna based on artificial electromagnetic structure materials |
Non-Patent Citations (3)
Title |
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SHANTANU K. PADHI: ""A microstrip Yagi antenna using EBG structure"", 《RADIO SCIENCE》 * |
吴郡等: "《左手材料理论及其应用》", 30 November 2010 * |
武菲菲: ""宽频周期结构在微波吸波层及天线的应用"", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110957582A (en) * | 2019-12-25 | 2020-04-03 | 武汉灵动时代智能技术股份有限公司 | Compact coupling metamaterial structure |
CN110957582B (en) * | 2019-12-25 | 2021-08-06 | 武汉灵动时代智能技术股份有限公司 | Compact coupling metamaterial structure |
CN113178670A (en) * | 2021-05-13 | 2021-07-27 | 上海大学 | Novel printed circuit board slow wave transmission line |
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Application publication date: 20170718 |