CN205723943U - A kind of broadband Fabry Paro resonant antenna - Google Patents
A kind of broadband Fabry Paro resonant antenna Download PDFInfo
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- CN205723943U CN205723943U CN201620409910.XU CN201620409910U CN205723943U CN 205723943 U CN205723943 U CN 205723943U CN 201620409910 U CN201620409910 U CN 201620409910U CN 205723943 U CN205723943 U CN 205723943U
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Abstract
The utility model discloses a kind of broadband Fabry Paro resonant antenna, including partially reflecting surface, air layer, layer dielectric plate, public metal ground and feed.For the defect that existing Fabry Paro resonant antenna frequency band is narrow, the two-layer periodic patches cell array that this utility model uses arrangement to be printed on dielectric-slab constitutes partially reflecting surface, partially reflecting surface is made to have the reflected phase frequency response of positive slope, thus weaken the resonator cavity sensitivity to frequency, the broadening beamwidth of antenna.This utility model arranges magnetoelectricity dipole on single-layer medium plate and does feed, while reducing antenna section height, improves the directivity of antenna, radiation efficiency, and has expanded the bandwidth of operation of antenna.
Description
Technical field
This utility model relates to a kind of plane high-gain aerial, is that one has wide band Fabry Perot resonance sky
Line.
Background technology
For more reliable transmission information, the communication system such as mobile communication, satellite communication generally requires high-gain broadband
Antenna.It is simple that traditional reflecting surface sky feedback class antenna such as Cassegrain antenna has radiation efficiency height, bandwidth and feed
Advantage, but it also has that volume is big, section is high and it is conformal with target to be difficult to, the shortcoming of design underaction.It is thus desirable to
Improve traditional space fed antenna so that it is both kept the advantage of wide-band high gain, the section of antenna can be reduced again, be easily total to target
Shape.
FPRA (Fabry Perot resonant antenna) is exactly the empty feedback class flat plane antenna of a kind of high directivity.It is in resonance frequency
The incidence wave of rate is by partially reflecting surface (partially reflective surface), air layer and metal ground three's structure
Total transmissivity in the resonator cavity become, and the incidence wave of off-resonance frequency is partially reflected surface and constantly reflects, finally outside FPRA
In-phase stacking on surface and constantly strengthen, thus improve the directivity of antenna.But this principle of resonator cavity result also in it
The characteristic of narrow bandwidth, and the reflected phase of partially reflecting surface is the most sensitive to the change of frequency so that and FPRA has narrow frequency
The shortcoming of band, limits the actual application of FPRA.
Feed is an important component part of Fabry Perot resonant antenna, and it decides the performance of whole antenna.Need
Want broadband, gain stabilization, the feed of low-cross polarization, and magnetoelectricity dipole antenna is a kind of by electric dipole and magnetic dipole
The antenna combined, its directional diagram is heart, has many good electrical characteristics to meet the design requirement of this antenna.And
In the research of forefathers, magnetoelectricity dipole, is many by using air to make dielectric layer with broadening bandwidth, and this design adds undoubtedly
The section height of antenna.
Utility model content
In order to solve the problems referred to above, the utility model proposes a kind of novel Fabry Paro resonant antenna, again set
Count partially reflecting surface, while reducing antenna section height, widen the working band of antenna.
A kind of broadband of the present utility model Fabry Perot resonant antenna, anti-including the part being arranged in order from top to bottom
Reflective surface, air layer, layer dielectric plate and public metal ground, offer gap, gap be provided with feed in layer dielectric plate, its
Being characterised by, partially reflecting surface is made up of top dielectric plate, and the upper surface of top dielectric plate is provided with upper strata patch array, on
The lower surface of layer dielectric-slab is provided with lower floor's patch array.
Broadband as above Fabry Perot resonant antenna, it is characterised in that upper in described partially reflecting surface
Laminating chip arrays and lower floor's patch array are constituted by rectangular patch unit,
Broadband as above Fabry Perot resonant antenna, it is characterised in that described feed uses magnetoelectricity dipole
Feed.
Broadband as above Fabry Perot resonant antenna, it is characterised in that described magnetoelectricity dipole feed is by setting
Put two row's metal wall composition magnetic dipoles on the tangent plane of layer dielectric plate gap, be horizontally set on layer dielectric by prolonging gap
The one of plate upper surface secondary printing paster composition electric dipole is constituted, and is provided with probe in the middle of gap, and probe pin upper ends is provided with T-shaped bar
Band.Concrete antenna parameter needs to be adjusted as the case may be.
Broadband as above Fabry Perot resonant antenna, it is characterised in that described air layer height is at basic mode
In the case of be Semi-resonance wavelength.
This utility model utilizes Fabry Paro resonant antenna high directivity, the feature of low section height, for its frequency band
Narrow defect, the two-layer periodic patches cell array using arrangement to be printed on dielectric-slab constitutes partially reflecting surface so that
Partially reflecting surface has the reflected phase frequency response of positive slope, so that the sensitivity of frequency is cut by resonator cavity
Weak, the broadening beamwidth of antenna effectively.Due to part reflecting face of the present utility model and metal and middle air layer common
Constitute resonator cavity, in-field is carried out phase compensation, at antenna aperture by the unit size of appropriate design two-layer patch array
Upper formation equiphase ripple, improves directivity and the radiation efficiency of antenna.The design use the magnetoelectricity with constant gain even
Extremely son is as feed.For ease of integrated, reducing antenna section, the magnetoelectricity dipole in the design, uses single-layer medium plate simultaneously
Realize.
In the Fabry Perot resonant antenna of broadband described in the utility model, energy is by the spy between layer dielectric plate gap
Pin feed-in, is coupled by connected T-shaped band and encourages electric dipole and magnetic dipole simultaneously, and magnetoelectricity dipole radiation is out
Electromagnetic wave by complementary superposition, form forward radiation and strengthen, the heart-shaped radiation that backward radiation is cancelled out each other, improve the side of antenna
Tropism.Partially reflecting surface is made up of the chip unit being printed in a large number on dielectric substrate, when electromagnetic wave spreads out of from feed, and edge
The length the different each chip units of transmission path arrival is different, and the difference of path-length will cause each unit institute
There is different spatial phase delay in the in-field accepted.This utility model appropriate design cellular construction and its arrangement mode,
Make whole array that in-field is carried out suitable phase compensation.Especially take overlapped way to compensate from feed to each paster
The Phase delay caused due to space length difference so that mirror field forms the electromagnetism of homophase plane on antenna opening diametric plane
Ripple.In the application, by each unit reflected phase is corrected, keep the phase shift curvature that partially reflecting surface is mild, formed
The echo of homophase pack.Making the gain of antenna, cross polarization, the performance such as bandwidth is more excellent.
By the method tested and use parameter extraction to analyze, the chip unit size of adjustment member reflecting surface and height
Degree, thus obtain the reflection Frequency Response of positive slope, the i.e. electromagnetic wave phase place amplitude of variation within the frequency band range investigated and subtract
Little.So impedance bandwidth can be guaranteed, and gain bandwidth also increases.
Described top dielectric plate and bottom have identical material properties, but highly different, according to the break joint of paster
Gap produces left hand resonance characteristic and the right hand characteristic of levels paster coupling generation, and regulation top dielectric plate height reaches
Mode of resonance.By bottom magnetoelectricity dipole radiation electromagnetic wave out constantly being reflected and selective radiation is gone out, protect
Card antenna directivity improves gain.
Compared to the prior art this utility model has the advantages that this utility model is at conventional resonance chamber antenna base
On plinth, by the structure of the partially reflecting surface of improved method Fabry-Perot resonant antenna, i.e. it is designed with patch array with two sides
Dielectric-slab as partially reflecting surface, make antenna keep original high directivity, low section height, easily the most conformal with target
While feature, overcome conventional resonance chamber antenna to frequency sensitive, the defect of narrower bandwidth.This utility model design based on
The Fabry Perot resonant antenna entirety of magnetoelectricity dipole has wide band characteristic.
This utility model by adjusting top dielectric plate thickness and patch array each unit size, structure, arrangement mode,
Patch array each unit reflected phase is corrected, keeps the phase shift curvature that partially reflecting surface is mild, form homophase pack
Echo.Make the performances such as the gain of antenna, cross polarization, bandwidth more excellent.
This utility model utilizes magnetoelectricity dipole high directivity, wide band characteristic, is applied to Fabry-Perot resonance
In antenna, improve resonant cavity gain so that antenna has broadband, high-gain, gain stabilization, low section, size is little is easily integrated
Characteristic.This antenna can be applicable to Ku multi-band communication system.
Accompanying drawing explanation
Fig. 1 is the three-dimensional overall structure figure of novel Fabry Paro resonant antenna.
Fig. 2 is the feed enlarged drawing of novel Fabry Paro resonant antenna.
Fig. 3 is the side view of novel Fabry Paro resonant antenna.
Fig. 4 is the structure chart of T-shaped band in novel Fabry Paro resonant antenna.
Fig. 5 is the top view of feed in novel Fabry Paro resonant antenna.
Fig. 6 is the standing-wave ratio curve comparison diagram of novel Fabry Paro resonant antenna and original magnetoelectricity dipole antenna.
Fig. 7 is novel Fabry Paro resonant antenna and the gain curve comparison diagram of original magnetoelectricity dipole antenna.
Fig. 8 is the E surface radiation directional diagram of novel Fabry Paro resonant antenna.
Figure indicates and illustrates: top dielectric plate 1, air layer 2, layer dielectric plate 3, probe 4, upper strata patch array 5, lower floor
Patch array 6, T-shaped band 7, electric dipole 8, magnetic dipole 9, public metal ground 10.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
The utility model discloses a kind of broadband Fabry Perot resonant antenna, including the portion being arranged in order from top to bottom
Divide reflecting surface, air layer 2, layer dielectric plate 3 and public metal ground 10, layer dielectric plate 10 is offered gap, gap sets
It is equipped with magnetoelectricity dipole feed.Wherein, air layer height is Semi-resonance wavelength in the case of basic mode.Partially reflecting surface is by upper
Layer dielectric-slab 1 is constituted, and the upper surface of top dielectric plate 1 is provided with upper strata patch array 5, and the lower surface of top dielectric plate 1 is arranged
There is lower floor's patch array 6.Upper and lower two-layer patch array is constituted by rectangular patch unit, through overregulating parameter, finally gives
The a length of 3.2mm of laminating blade unit, a width of 1.4mm.A length of 3.2mm of lower floor's chip unit, a width of 1.6mm, top dielectric
Plate height is 2.5mm.
Described magnetoelectricity dipole feed is formed magnetic couple by the two row's metal walls being arranged on the tangent plane of layer dielectric plate gap
Extremely son 9, is formed electric dipole 8 by the secondary printing paster prolonging gap and being horizontally set on layer dielectric plate upper surface and collectively forms,
Being provided with probe 4 in the middle of gap, probe 4 upper end is provided with T-shaped band 7.The underlying dielectric plate thickness at magnetoelectricity dipole place is
3mm, as a length of 15.6mm of paster, a width of 6.4mm of electric dipole.The a diameter of 0.4mm of metal column, a row 27, totally two row
The secondary magnetic dipole of composition one.A diameter of 1mm, the T-shaped band T-shaped band a length of 1.8mm in base of middle probe, a width of
0.5mm, flash is 1.6mm.
Of the present utility model it is unique in that, improves the partially reflective table of traditional Fabry Paro cavity antenna
Face structure.By each arranging one group of patch array arranging by the way of two surfaces are with stacking up and down of top dielectric plate and compensate
Due to the Phase delay caused from feed to each paster space length difference.This makes the mirror field can be at antenna opening diametric plane
The electromagnetic wave of upper formation homophase plane.By unit reflected phase is corrected, i.e. regulate the shape of unit, arrangement, size
And the thickness of top dielectric plate, bore face forms the echo of homophase pack so that partially reflecting surface can keep
Mild phase shift curvature, thus increase the bandwidth of antenna.
Owing to using the base structure of Fabry Paro cavity antenna, earth plate 10 is common with partially reflecting surface 5,6
Constituting a semi-open resonator cavity, electromagnetic wave vibrates in resonator cavity 2 back and forth, and the electromagnetic wave of characteristic frequency is from partially reflective table
Face transmission is gone out in-phase stacking and is constantly strengthened.Owing to improving levels patch array structure, weaken resonator cavity and part is anti-
The reflective surface sensitivity to frequency, the present embodiment not only maintains the characteristic of the original good directionality of antenna, can ensure sky
Under conditions of tape width, make the gain of antenna, cross polarization, directivity etc. can meet application demand simultaneously.And due to
The structure of Fabry Paro cavity antenna, it is little that the such design of the application has volume the most simultaneously, and section height is low, easy and mesh
Mark conformal, the enough advantages flexibly of design.
In the present embodiment, feed part is coupled by the T-shaped band 7 being attached thereto by probe 4 feed in energy analysis, probe, with
Shi Jili electric dipole 8 and magnetic dipole 9, magnetoelectricity dipole radiation electromagnetic wave out, by complementary superposition, forms forward direction spoke
Penetrate reinforcement, the heart-shaped radiation that backward radiation is cancelled out each other.Meanwhile, T-shaped band is the biggest on the impact of impedance bandwidth.Especially
The length of T-shaped band, reduces length and can cause mismatch, and length increases excessive, and resonant frequency can be made toward high frequency offset, design
The middle length guarantee impedance operator needing to regulate band, the metal wall width and the electric dipole that regulate its magnetic dipole are put down simultaneously
The size of face paster so that it is meet and there is stable gain and impedance at the operating frequencies.
In conjunction with Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the impedance bandwidth of the novel Fabry Paro cavity antenna of the present invention keeps
Magnetoelectricity dipole broadband character, and generally improve than original magnetoelectricity dipole antenna gain, at 12GHz to 18GHz frequency
All at more than 8.87dBi in the range of band, highest-gain reaches 12.62dBi.And low backward radiation, cross-polarization levels is the lowest.
In accordance with the above, the present invention can just be realized.
Claims (7)
1. a broadband Fabry Perot resonant antenna, including the partially reflecting surface being arranged in order from top to bottom, air layer
(2), layer dielectric plate (3) and public metal ground (10), layer dielectric plate is offered gap, gap is provided with feed, it is special
Levying and be, partially reflecting surface is made up of top dielectric plate (1), and the upper surface of top dielectric plate (1) is provided with upper strata paster battle array
Row (5), the lower surface of top dielectric plate is provided with lower floor's patch array (6).
Broadband the most according to claim 1 Fabry Perot resonant antenna, it is characterised in that described partially reflective table
Upper strata patch array and lower floor's patch array on face are constituted by rectangular patch unit.
Broadband the most according to claim 2 Fabry Perot resonant antenna, it is characterised in that described upper strata paster battle array
The a length of 3.2mm of rectangular patch unit, a width of 1.4mm in row；In lower floor's patch array, rectangular patch unit is a length of
3.2mm, a width of 1.6mm, top dielectric plate height is 2.5mm.
Broadband the most according to claim 1 Fabry Perot resonant antenna, it is characterised in that feed uses magnetoelectricity dipole
Sub-feed.
Broadband the most according to claim 4 Fabry Perot resonant antenna, it is characterised in that described magnetoelectricity dipole
Feed is formed magnetic dipole (9) by the two row's metal walls being arranged on the tangent plane of layer dielectric plate gap, and by prolonging gap level
Secondary printing paster composition electric dipole (8) being arranged on layer dielectric plate upper surface is constituted, and is provided with probe, probe in the middle of gap
(4) upper end is provided with T-shaped band (7).
Broadband the most according to claim 5 Fabry Perot resonant antenna, it is characterised in that described magnetoelectricity dipole
The layer dielectric plate thickness at place is 3mm；Electric dipole is by a pair paster composition of a length of 15.6mm, a width of 6.4mm；Magnetic dipole
The sub metal column by 27 to being arranged side by side forms, a diameter of 0.4mm of metal column；A diameter of 1mm of probe, T-shaped band base
A length of 1.8mm, a width of 0.5mm, flash is 1.6mm.
Broadband the most according to claim 1 Fabry Perot resonant antenna, it is characterised in that described air layer height
It it is Semi-resonance wavelength in the case of basic mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409910.XU CN205723943U (en) | 2016-05-09 | 2016-05-09 | A kind of broadband Fabry Paro resonant antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409910.XU CN205723943U (en) | 2016-05-09 | 2016-05-09 | A kind of broadband Fabry Paro resonant antenna |
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| CN205723943U true CN205723943U (en) | 2016-11-23 |
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| CN201620409910.XU Expired - Fee Related CN205723943U (en) | 2016-05-09 | 2016-05-09 | A kind of broadband Fabry Paro resonant antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482313A (en) * | 2017-06-19 | 2017-12-15 | 西北工业大学 | A kind of grading structure wideband resonance chamber antenna |
| CN107510456A (en) * | 2017-08-17 | 2017-12-26 | 佛山市丈量科技有限公司 | A kind of radio frequency sensor and sensor array suitable for wearable intelligent dress ornament |
| CN107819203A (en) * | 2017-09-29 | 2018-03-20 | 深圳大学 | A kind of magnetoelectricity dipole antenna of super surface dielectric plate |
| CN110808461A (en) * | 2019-11-22 | 2020-02-18 | 东南大学 | Low-profile holographic imaging antenna based on Fabry-Perot resonant cavity type structure |
| CN112534647A (en) * | 2018-08-01 | 2021-03-19 | 慕尼黑科技大学 | Broadband antenna with polarization dependent output |
| CN113488777A (en) * | 2021-06-10 | 2021-10-08 | 上海交通大学 | Graphene patch type terahertz Fabry-Perot resonant antenna and implementation method thereof |
| CN113937510A (en) * | 2021-09-29 | 2022-01-14 | 北京理工大学 | Mixed-feed Ka-band magnetoelectric dipole antenna array |
| CN114709626A (en) * | 2022-06-07 | 2022-07-05 | 电子科技大学 | Fabry-Perot resonant cavity vortex electromagnetic wave antenna based on super surface |
| CN114843771A (en) * | 2022-04-25 | 2022-08-02 | 重庆邮电大学 | Fabry-Perot resonant cavity antenna with 1dB gain bandwidth |
| CN114914674A (en) * | 2022-04-22 | 2022-08-16 | 哈尔滨工业大学（深圳） | Single-layer linearly polarized magnetoelectric dipole antenna and antenna array |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107482313A (en) * | 2017-06-19 | 2017-12-15 | 西北工业大学 | A kind of grading structure wideband resonance chamber antenna |
| CN107510456A (en) * | 2017-08-17 | 2017-12-26 | 佛山市丈量科技有限公司 | A kind of radio frequency sensor and sensor array suitable for wearable intelligent dress ornament |
| CN107819203A (en) * | 2017-09-29 | 2018-03-20 | 深圳大学 | A kind of magnetoelectricity dipole antenna of super surface dielectric plate |
| CN107819203B (en) * | 2017-09-29 | 2021-04-09 | 深圳市南斗星科技有限公司 | Magnetoelectric dipole antenna of super-surface dielectric plate |
| CN112534647A (en) * | 2018-08-01 | 2021-03-19 | 慕尼黑科技大学 | Broadband antenna with polarization dependent output |
| CN110808461A (en) * | 2019-11-22 | 2020-02-18 | 东南大学 | Low-profile holographic imaging antenna based on Fabry-Perot resonant cavity type structure |
| CN113488777A (en) * | 2021-06-10 | 2021-10-08 | 上海交通大学 | Graphene patch type terahertz Fabry-Perot resonant antenna and implementation method thereof |
| CN113937510A (en) * | 2021-09-29 | 2022-01-14 | 北京理工大学 | Mixed-feed Ka-band magnetoelectric dipole antenna array |
| CN113937510B (en) * | 2021-09-29 | 2022-11-29 | 北京理工大学 | Mixed-feed Ka-band magnetoelectric dipole antenna array |
| CN114914674A (en) * | 2022-04-22 | 2022-08-16 | 哈尔滨工业大学（深圳） | Single-layer linearly polarized magnetoelectric dipole antenna and antenna array |
| CN114914674B (en) * | 2022-04-22 | 2023-12-29 | 哈尔滨工业大学（深圳） | Single-layer linear polarization magneto-electric dipole antenna and antenna array |
| CN114843771A (en) * | 2022-04-25 | 2022-08-02 | 重庆邮电大学 | Fabry-Perot resonant cavity antenna with 1dB gain bandwidth |
| CN114709626A (en) * | 2022-06-07 | 2022-07-05 | 电子科技大学 | Fabry-Perot resonant cavity vortex electromagnetic wave antenna based on super surface |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170509 |