CN105490016B - Broadband beam antenna based on resonant mode reflector - Google Patents
Broadband beam antenna based on resonant mode reflector Download PDFInfo
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- CN105490016B CN105490016B CN201610039770.6A CN201610039770A CN105490016B CN 105490016 B CN105490016 B CN 105490016B CN 201610039770 A CN201610039770 A CN 201610039770A CN 105490016 B CN105490016 B CN 105490016B
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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
- H01Q19/10—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 reflecting surfaces
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- 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
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention discloses a kind of broadband beam antenna based on resonant mode reflector, is mainly made up of broad-band antenna body layer, resonant mode reflector layer and director layer；Resonant mode reflector layer is located at the underface of broad-band antenna body layer；Director layer is located at the surface of broad-band antenna body layer.Broad-band antenna body layer includes bulk medium substrate and posts upper primary radiation paster and Metal loading ring in bulk medium substrate.Resonant mode reflector layer includes resonator, dielectric substrate and posts the metal resonant ring in resonator, dielectric substrate.Director layer includes guiding medium substrate into and posting guiding ring into guiding medium substrate metal into.Because the present invention had both overcome higher section needed for antenna loading conventional metals reflecting plate, the larger area required for antenna loading AMC structures and narrower frequency band are overcome again, therefore the present invention has double dominant.
Description
Technical field
The present invention relates to broad-band antenna and directional aerial field, and in particular to a kind of broadband based on resonant mode reflector
Directional aerial.
Background technology
With society and the progress of science and technology, wireless communication technology has obtained rapid development, and the bandwidth of signal is also continuous
Raising.Ultra wide band (Ultra-Wideband) antenna has also obtained considerable hair as the core devices in wide-band communication system
Exhibition.However, ultra-wideband antenna has the shortcomings that some are universal, such as the sacrifice for making gain of having to improve bandwidth；With
And the directional diagram of high frequency can deteriorate, etc..These shortcomings have a strong impact on communication quality.And the usually omni-directional spoke of ultra-wideband antenna
Penetrate or bidirectional radiation, and as the antenna on modern carrier system is more and more, the problem of electromagnetic compatibility is one very big；
Application value is also little on the field for needing high security and high interference immunity.Solves a simple warp of these weak points
The method of Ji is the ultra-wideband antenna using directed radiation.
Directional aerial be generally divided into microstrip antenna, log-periodic antenna, yagi aerial, parabola antenna, electromagnetic horn,
Antenna of Vivaldi antennas and use metal mirror etc..Above-mentioned antenna all has higher directionality, but regrettably,
They have the deficiency of itself：Microstrip antenna in the another side of medium substrate due to covering metal level as floor, Ke Yiqu
Good directionality is obtained, but the presence of metal level causes the impedance bandwidth of microstrip antenna very narrow, generally only 5% or so；
Yagi aerial generally has more than 10dBi forward gain, but its intrinsic narrow-band and the characteristic of end-fire limit its
Application；Log-periodic antenna and Vivaldi antennas belong to frequency-independent antenna, and they have very wide impedance bandwidth, simultaneously
More stable directionality can also be kept in whole passband, but its larger size and end-fire characteristic make it portable
Having no advantage in formula application field can say；And parabola antenna and electromagnetic horn also due to relatively large size and limited
Application.Directional aerial using metal mirror is (can be equivalent to ideal to lead using metallic conductor on broad-band antenna
Body, Perfect Electric Conductor, PEC) it is used as reflecting surface.According to the boundary condition on PEC surfaces, electric field it is tangential
Component is zero, so back wave can produce 180 ° of phase difference.Therefore the spacing that must assure that antenna and metallic reflection plate is four
/ mono- wavelength so that back wave being capable of in-phase stacking in far field with direct wave.The spacing of antenna and metallic reflection plate is four points
One of the requirement of wavelength make it that antenna will become very thick in low frequency applications, and the bandwidth of antenna is not also wide；In addition, to take
The size of preferable directionality reflecting plate is also required to larger, be unfavorable for minimizing.Moreover, in addition to microstrip antenna, it is above-mentioned other
Antenna is all not belonging to low section structure.
In recent years with electromagnetism Meta Materials (metamaterial) development, occur a kind of using artificial magnetic conductor
The directional aerial of (Artificial Magnetic Conductor, AMC) as reflecting surface.AMC is by the strong resonance structure cycle
The artificial electromagnetic material of arrangement, to simulate perfect magnetic conductor (Perfect Magnetic Conductor, PMC) characteristic,
So that realize that zero phase reflects in specific frequency.Due to AMC zero phase reflection characteristic, metallic conductor reflecting surface is changed into AMC,
Antenna and AMC distance can be infinitely close in theory, therefore can realize the directional aerial of low section.Moreover, certain structures
AMC, such as mushroom-shaped electro-magnetic bandgap (Electromagnetic that propose of American scholar D.Sievenpiper in 1999
Band-gap, EBG) structure, zero reflected phase frequency range is identical with the band gap frequency range of high resistant characteristic, therefore uses it as reflecting surface
Also there is suppression surface wave simultaneously, improve the characteristic of secondary lobe and back lobe.But also there is its shortcoming on AMC surfaces, surface this first
Frequency band it is especially narrow, it is difficult to obtain broadband character, let alone ultra wide band；Secondly, AMC surfaces are periodic structure, it is necessary to more
The individual cycle could realize good function, and its planar dimension is larger；3rd, AMC structure and the distance of antenna are close, the coupling between the two
Conjunction is very strong, so that the design and optimization efficiency of antenna are low.
The research for broadband beam antenna domestic at present be mostly yagi aerial, parabola antenna, electromagnetic horn, using gold
Belong to antenna of reflecting plate etc.." ultra wide band orients day as disclosed in the Chinese invention patent application that notification number is CN103825091A
Line "；Notification number is disclosed in CN102544721A Chinese invention patent application " a kind of Flat printing broadband directional antenna "；It is public
Announcement number is that " wideband directional micro-strip paster antenna " and notification number are disclosed in CN102738572A Chinese invention patent application
" broadband high-efficiency indoor directional antenna " disclosed in CN101752669A Chinese invention patent application.Although the studies above passes through
Certain method generates certain directionality, but theirs is front and rear than being not especially high, and all these methods
Slightly aobvious complexity in design.So add design cost and in some occasions and do not apply to.Further, these patents can not meet
Antenna low section, the requirement of miniaturization.
The content of the invention
To be solved by this invention is that antenna loading conventional metals reflecting plate needs higher section and antenna loading AMC knots
Structure needs the deficiency of larger area and narrower frequency band, there is provided a kind of broadband beam antenna based on resonant mode reflector.
To solve the above problems, the present invention is achieved by the following technical solutions：
A kind of broadband beam antenna based on resonant mode reflector, mainly by broad-band antenna body layer, resonant mode reflector
Layer and director layer composition；Resonant mode reflector layer is located at the underface of broad-band antenna body layer；Director layer is located at broadband day
The surface of line body layer.Above-mentioned broad-band antenna body layer includes bulk medium substrate, primary radiation paster and Metal loading ring；It is main
Radiation patch and Metal loading ring are posted in the same side surface of bulk medium substrate simultaneously, and Metal loading ring is annular in shape, and
It is looped around the opposite exterior lateral sides of primary radiation paster；The center of primary radiation paster is provided with distributing point.Above-mentioned resonant mode reflector layer includes
Resonator, dielectric substrate and metal resonant ring；Metal resonant ring ring-type, and post in a side surface of resonator, dielectric substrate.It is above-mentioned to draw
Include guiding medium substrate into device layer and metal guides ring into；Metal guides ring ring-type into, and posts in the side for guiding medium substrate into
Surface.
In such scheme, primary radiation paster and Metal loading ring are posted in the upper surface of bulk medium substrate, metal simultaneously
Resonant ring is posted in the lower surface of resonator, dielectric substrate, and metal is guided ring into and posted in the upper surface for guiding medium substrate into.
In such scheme, the broad-band antenna body layer still further comprises a micro-strip gradual change impedance transformer, the micro-strip
Gradual change impedance transformer is vertically arranged in the lower section of bulk medium substrate, and the upper end of micro-strip gradual change impedance transformer is pasted with primary radiation
The distributing point of piece is connected.
In such scheme, the distance between resonant mode reflector layer and broad-band antenna body layer are more than director layer and broadband
The distance between antenna body layer.
In such scheme, the distance between resonant mode reflector layer and broad-band antenna body layer are the λ of 0.07 λ~0.11, are drawn
It is the λ of 0.03 λ~0.05 to the distance of device layer and broad-band antenna body layer, wherein λ is the working band starting frequency of main radiation patch
Rate corresponding wavelength.
In such scheme, the center that the primary radiation paster, Metal loading ring, metal resonant ring and metal guide ring into exists
In same vertical line.
In such scheme, it is annular shape that the Metal loading ring, metal resonant ring and metal, which guide ring into,.
In such scheme, the primary radiation paster is fan-shaped bow tie.
In such scheme, the size and the size of Metal loading ring of metal resonant ring match, and metal guides the size of ring into
Match with the size of primary radiation paster.
Compared with prior art, the present invention has following features：
1st, by placing resonant mode reflector layer below broad-band antenna body layer so that the electromagnetic wave of wider frequency section is anti-
Be emitted back towards, with the direct wave of antenna body above antenna in-phase stacking, so as to obtain wide band directed radiation ripple.
2nd, reflector is resonant mode structure, and size is smaller, and using only a reflector can just obtain on a wide frequency band it is good
Good directionality, therefore antenna structure is compact；
3rd, the reflected phase at resonant mode reflector layer is less than 180 ° of metal floor reflector, antenna body and reflector
Between distance can be much smaller than quarter-wave, therefore antenna has the characteristics of low section again.
4th, antenna optimization efficiency is high, has saved system resource；Suitable for the directed radiation of broadband, miniaturization and low section
In system.
Brief description of the drawings
Fig. 1 is a kind of front view of the radiating layer of the broadband beam antenna based on resonant mode reflector；
Fig. 2 is a kind of front view of director of the broadband beam antenna based on resonant mode reflector layer by layer；
Fig. 3 is a kind of front view of the reflector layer of the broadband beam antenna based on resonant mode reflector；
Fig. 4 is a kind of overall side view of the broadband beam antenna based on resonant mode reflector；
Fig. 5 is the S11 curves of antenna；
Fig. 6 is reflected phase of the resonant mode reflector layer of antenna at antenna body；
Fig. 7 is antenna pattern of the antenna at 2.0GHz；
Fig. 8 is antenna pattern of the antenna at 3.0GHz；
Fig. 9 is antenna pattern of the antenna at 4.2GHz；
Figure 10 be before antenna valve and back lobe with the situation of change of frequency；
Figure 11 is the front and rear situation of change than with frequency of antenna；
Label in figure：1st, broad-band antenna body layer；1-1 bulk medium substrates；1-2, primary radiation paster；1-3, Metal loading
Ring；1-4, micro-strip gradual change impedance transformer；2nd, resonant mode reflector layer；2-1, resonator, dielectric substrate；2-2, metal resonant ring；3、
Director layer；3-1 guides medium substrate into；3-2, metal guide ring into.
Embodiment
A kind of broadband beam antenna based on resonant mode reflector, as Figure 1-4, the antenna haves three layers, and divides from top to bottom
Not Wei director layer 3, broad-band antenna body layer 1 and resonant mode reflector layer 2, i.e. resonant mode reflector layer 2 is located at broad-band antenna
The underface of body layer 1；Director layer 3 is located at the surface of broad-band antenna body layer 1.In a preferred embodiment of the invention, draw
To device layer 3, broad-band antenna body layer 1 and resonant mode reflector layer 2 are supported by sticking plaster.Resonant mode reflector
Layer the distance between 2 and broad-band antenna body layer 1 are more than the distance between director layer 3 and broad-band antenna body layer 1.Resonant mode
The reflected phase of reflector layer 2 is less than possessed by conventional metals reflecting plate (PEC) 180 °, and about between 90 ° to 150 °.Cause
This, the distance between resonant mode reflector layer 2 and antenna can be less than 0.25 λ required by metallic reflection plate (PEC), to obtain
Low antenna section；But the distance between resonant mode reflector layer 2 and antenna are more than AMC required zero distance, therefore
The coupling between antenna body and reflector is reduced, improves design efficiency, and wider frequency band can be obtained；It is appropriate to choose resonance
The distance between formula reflector layer 2 and broad-band antenna body layer 1 can just be such that direct wave is superimposed with reflected wave in phase.The present embodiment
In, director layer 3 functions only as bunching action in the present invention, and the distance between antenna body does not cause to the bandwidth of antenna
Too much influence.In a preferred embodiment of the invention, the distance between resonant mode reflector layer 2 and broad-band antenna body layer 1 are
The λ of 0.07 λ~0.11, the distance of director layer 3 and broad-band antenna body layer 1 are the λ of 0.03 λ~0.05, and wherein λ is main radiation patch
1-2 working band initial frequency corresponding wavelength.
Above-mentioned broad-band antenna body layer 1 include bulk medium substrate 1-1, primary radiation paster 1-2, Metal loading ring 1-3 and
Micro-strip gradual change impedance transformer 1-4.Primary radiation paster 1-2 uses wideband patch form, to obtain broadband character.Metal loading
Ring 1-3 makes the radiation characteristic of antenna also take on a new look significantly further to improve while impedance operator.Primary radiation paster 1-2 and gold
Category loaded ring 1-3 is posted in bulk medium substrate 1-1 upper surface, and Metal loading ring 1-3 is annular in shape, and is looped around main spoke
Penetrate paster 1-2 opposite exterior lateral sides.Primary radiation paster 1-2 center is provided with distributing point.Micro-strip gradual change impedance transformer 1-4 is vertically put
In bulk medium substrate 1-1 lower section, and micro-strip gradual change impedance transformer 1-4 upper end and primary radiation paster 1-2 distributing point
It is connected, micro-strip gradual change impedance transformer 1-4 lower end can vertically be suspended from broad-band antenna body layer 1 and resonant mode reflector layer 2
Between, the through hole that can also be opened up from resonant mode reflector layer 2 passes perpendicularly through.In a preferred embodiment of the invention, primary radiation
Paster 1-2 is located at bulk medium substrate 1-1 center, Metal loading ring 1-3 external boundary and bulk medium substrate 1-1 edge
Overlap, primary radiation paster 1-2, Metal loading ring 1-3 and bulk medium substrate 1-1 three are concentrically.The present invention is for primary radiation
Paster 1-2 structure does not have considered critical, and it can be the radiating antenna of the existing distributing point heart wherein in the prior art
Structure, such as can be Archimedian spiral antenna, circular patch, oval paster, triangle patch, trapezoidal paster or they
Deformation, but must be symmetrical structure.In a preferred embodiment of the invention, primary radiation paster 1-2 uses the shape of fan-shaped bowknot
Formula, so that antenna has more preferable impedance operator.The primary radiation paster 1-2 is by the 2 fan-shaped metal patch institute being oppositely arranged groups
Into the center of 2 fan-shaped metal patches is relative and forms distributing point.Primary radiation paster 1-2 uses fan-shaped bow tie, and it is fan-shaped
Radius r0Determine the broad-band antenna low-frequency cut-off frequency.But the antenna of in general fan-shaped bow tie have one it is fatal
Shortcoming, the i.e. reverse current in high frequency on paster can cause directional diagram to divide.In the present invention, Metal loading ring 1-3 shape
Can be for square, flower-shape or other on centrosymmetric loop configuration, but in a preferred embodiment of the invention, metal
Loaded ring 1-3 is annular.One circle Metal loading ring 1-3, the Metal loading by the external load in primary radiation paster 1-2
Ring 1-3 is equivalent to 2 half-wave dipoles, and Metal loading ring 1-3 corresponds to the radiation of low frequency, and primary radiation paster 1-2 emits high levels of radiation
Frequency, to obtain more consistent electric current in whole frequency range, so as to improve the radiation characteristic of whole antenna, while can be apparent
Improvement its impedance operator.Micro-strip gradual change impedance transformer 1-4 is used to feed for broad-band antenna body layer 1.Micro-strip gradual change impedance
The microstrip line gradual change balanced-to-unblanced transformer that converter 1-4 is the Ω of 75 Ω -50 is micro-strip gradual change balun, by antenna impedance
50 Ω are transformed to from 75 Ω.Micro-strip gradual change impedance transformer 1-4 uses the existing structure of prior art, due to being converted for impedance
And the micro-strip gradual change impedance transformer 1-4 of unbalanced transformation technology maturation is equilibrated to, do not do excessive discussion herein.
Above-mentioned resonant mode reflector layer 2 includes resonator, dielectric substrate 2-1 and metal resonant ring 2-2.Metal resonant ring 2-2 is in
Ring-type, and post in resonator, dielectric substrate 2-1 lower surface.In a preferred embodiment of the invention, resonator, dielectric substrate 2-1 and gold
Belong to resonant ring 2-2 concentrically, metal resonant ring 2-2 external boundary and resonator, dielectric substrate 2-1 coincident.In the present invention,
Metal resonant ring 2-2 shape can be for square, flower-shape or other on centrosymmetric loop configuration, but in this hair
In bright preferred embodiment, metal resonant ring 2-2 is annular.Acting as metal resonant ring 2-2 is approximate by low-frequency cutoff wavelength
Electromagnetic wave equal to one section of broad spectrum of its girth is reflected back with certain reflected phase, is subject to resonant mode reflector layer 2
Certain distance between broad-band antenna body layer 1 is smaller, the compensation of the space phase of introducing so that back wave and antenna body
Direct wave is formed compared with intense radiation in the far field in-phase stacking of upper half-space；With this by the two-way or omnidirectional of broad-band antenna body layer 1
Radiated electromagnetic wave is changed into directed radiation ripple.In addition, the resonant mode reflector layer 2 of the present invention only needs a resonator, its chi
It is very little far smaller than need periodic structure to realize artificial magnetic conductor (Artificial Magnetic Conductor,
AMC), therefore there is double dominant.
Above-mentioned director layer 3 includes guiding medium substrate 3-1 into and metal guides ring 3-2 into.It is annular in shape that metal guides ring 3-2 into,
And post in the upper surface for guiding medium substrate 3-1 into.In a preferred embodiment of the invention, guide medium substrate 3-1 into and metal draws
To ring 3-2 concentrically, metal guides ring 3-2 external boundary into less than the edge for guiding medium substrate 3-1 into.Metal guides ring 3-2's into
Shape can be for square, flower-shape or other on centrosymmetric loop configuration, but in a preferred embodiment of the invention,
It is annular that metal, which guides ring 3-2 into,.Metal guides electromagnetic waves of ring 3-2 when can be to high frequency into and plays a part of pack, Ji Jiangtong
The high-end electromagnetic wave of frequency band is directed in antenna main radiation direction front and rear ratio during improving high frequency, to increase determining for antenna
Tropism, and have certain decline to field angle before allowing, gain is improved,
The present invention guides ring 3-2 prints into for primary radiation paster 1-2, Metal loading ring 1-3, metal resonant ring 2-2 and metal
System is little in influence of which side surface of each medium substrate to antenna.The preferred embodiment of the present invention is only to provide one kind preferably
Scheme.In the present invention, primary radiation paster 1-2, Metal loading ring 1-3, metal resonant ring 2-2 and metal guide ring 3-2's into
Center in vertical direction with respect to or allow have certain deviation, but in order to obtain best performance, the primary radiation patch
Piece 1-2, Metal loading ring 1-3, metal resonant ring 2-2 and metal guide ring 3-2 center into same vertical line, should
Vertical line is both perpendicular to bulk medium substrate 1-1, resonator, dielectric substrate 2-1 and guides medium substrate 3-1 into.Metal resonant ring
2-2 size and Metal loading ring 1-3 size match, i.e. metal resonant ring 2-2 center ring footpath and Metal loading ring 1-3
Center ring footpath it is equal.Metal guides ring 3-2 size into and primary radiation paster 1-2 size matches, i.e., metal guides ring 3-2 into
Center ring footpath be less than or equal to primary radiation paster 1-2 outline diameter.
With reference to accompanying drawing, the specific data of a broadband beam antenna based on resonant mode reflector, primary radiation patch are now provided
Piece 1-2 is fan-shaped butterfly shape, and its 2 fan-shaped metal patch sector subtended angles are 120 °, fan-shaped radius r0For 20mm, 2 fan-shaped gold
The gap belonged between paster is 1mm, and primary radiation paster 1-2 input impedance is approximately 75 Ω.Metal loading ring 1-3 is annulus
Shape, its center ring footpath r1 are 25mm, and ring width w1 is 2mm.Metal resonant ring 2-2 is annular, its chi with Metal loading ring 1-3
Very little consistent, its center ring footpath r2 is 25mm, and ring width w2 is 2mm.Resonant mode reflector layer 2 and the distance of broad-band antenna body layer 1
Hr and director layer 3 and the distance hd of broad-band antenna body layer 1 are respectively 12mm and 5mm, and wherein hr is only 0.08 λ (λ antennas
Low-frequency cutoff wavelength), it is significantly smaller than conventional metals reflecting plate and realizes 0.25 λ required for reflection in the same direction.Bulk medium substrate 1-
1st, resonator, dielectric substrate 2-1 with guide that medium substrate 3-1 material therefors are identical and size is consistent into, the relative dielectric of medium substrate is normal
Number is 2.65.
Fig. 5 is the S11 curves of antenna, as seen from the figure, antenna S in 2.0GHz--4.2GHz11Less than -10dB, impedance
It is good with characteristic.Fig. 6 is reflected phase of the resonant mode reflector layer 2 of antenna at antenna body, as seen from the figure, in whole day
Line frequency band internal reflection phase meets the requirement in far field back wave and direct wave in-phase stacking all between -90 ° to+90 °, can
The good in-phase stacking in far field is realized, while antenna gain is significantly improved.Fig. 7, Fig. 8, Fig. 9 are respectively antenna in 2.0GHz,
Directional diagram at 3.0GHz and 4.2GHz, as seen from the figure, the E-plane and H-plane pattern at three frequencies are shown substantially
Directional radiation properties, and directional diagram is highly stable, the skew of rip-panel and main beam does not occur in high frequency.Figure 10 is antenna
Preceding valve and back lobe with frequency change curve, Figure 11 be antenna it is front and rear than with frequency change situation, as seen from the figure, whole
In individual antenna operating band, the front and rear ratio of antenna is all higher than 4dB, can reach 10dB, front and rear than non-in whole working band
It is often stable, meet the communication under some specific environment requirements.This broadband beam antenna overcomes the reflection of antenna loading conventional metals
Higher section needed for plate, larger area required for antenna loading AMC structures and narrower frequency band are overcome again
Deficiency, therefore, the broadband beam antenna have double dominant.
Finally it should be noted that the design parameter in the embodiment is merely to the invention for clearly stating inventor is tested
Card process, it is not intended to limit the scope of patent protection of the present invention；Although the present invention is carried out in detail with reference to foregoing embodiments
Describe in detail it is bright, it will be understood by those within the art that：It still can be to the technical scheme described in foregoing embodiments
Modify, equivalent substitution either is carried out to which part or all technical characteristic；And these modifications or replacement, do not make
The essence of appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the broadband beam antenna based on resonant mode reflector, it is characterised in that：Mainly by broad-band antenna body layer (1), resonance
Formula reflector layer (2) and director layer (3) composition；Resonant mode reflector layer (2) be located at broad-band antenna body layer (1) just under
Side；Director layer (3) is located at the surface of broad-band antenna body layer (1)；
Above-mentioned broad-band antenna body layer (1) includes bulk medium substrate (1-1), primary radiation paster (1-2) and Metal loading ring (1-
3)；Primary radiation paster (1-2) and Metal loading ring (1-3) while post in the same side surface of bulk medium substrate (1-1), and
Metal loading ring (1-3) annularly, and is looped around primary radiation paster (1-2) opposite exterior lateral sides；The center of primary radiation paster (1-2)
Provided with distributing point；
Above-mentioned resonant mode reflector layer (2) includes resonator, dielectric substrate (2-1) and metal resonant ring (2-2)；Metal resonant ring (2-
2) annularly, and post in a side surface of resonator, dielectric substrate (2-1)；
Above-mentioned director layer (3) includes guiding medium substrate (3-1) into and metal guides ring (3-2) into；It is in ring that metal, which guides ring (3-2) into,
Shape, and post in the side surface for guiding medium substrate (3-1) into.
2. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：Primary radiation paster
(1-2) and Metal loading ring (1-3) while post posts in bulk medium substrate (1-1) upper surface, metal resonant ring (2-2)
In resonator, dielectric substrate (2-1) lower surface, metal is guided ring (3-2) into and posted in the upper surface for guiding medium substrate (3-1) into.
3. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：The broad-band antenna
Body layer (1) still further comprises a micro-strip gradual change impedance transformer (1-4), and the micro-strip gradual change impedance transformer (1-4) is vertical
It is placed in bulk medium substrate (1-1) lower section, and the upper end of micro-strip gradual change impedance transformer (1-4) and primary radiation paster (1-2)
Distributing point be connected.
4. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：Resonant mode reflector
Layer the distance between (2) and broad-band antenna body layer (1) more than between director layer (3) and broad-band antenna body layer (1) away from
From.
5. according to the broadband beam antenna based on resonant mode reflector described in claim 1 or 4, it is characterised in that：Resonant mode is anti-
The distance between emitter layer (2) and broad-band antenna body layer (1) are the λ of 0.07 λ~0.11, director layer (3) and broad-band antenna sheet
The distance of body layer (1) is the λ of 0.03 λ~0.05, and wherein λ is the working band initial frequency corresponding wavelength of main radiation patch (1-2).
6. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：The primary radiation patch
The center that piece (1-2), Metal loading ring (1-3), metal resonant ring (2-2) and metal guide ring (3-2) into is vertical in same
On straight line, its vertical line is simultaneously with bulk medium substrate (1-1), resonator, dielectric substrate (2-1) and guiding medium substrate (3- into
1) it is vertical.
7. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：The Metal loading
It is annular shape that ring (1-3), metal resonant ring (2-2) and metal, which guide ring (3-2) into,.
8. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：The primary radiation patch
Piece (1-2) is fan-shaped bow tie.
9. the broadband beam antenna according to claim 1 based on resonant mode reflector, it is characterised in that：Metal resonant ring
The size of (2-2) and the size of Metal loading ring (1-3) match, and metal guides the size and primary radiation paster (1- of ring (3-2) into
2) size matches.
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| CN201610039770.6A CN105490016B (en) | 2016-01-21 | 2016-01-21 | Broadband beam antenna based on resonant mode reflector |
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| CN201610039770.6A CN105490016B (en) | 2016-01-21 | 2016-01-21 | Broadband beam antenna based on resonant mode reflector |
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|---|---|---|---|---|
| CN105870605B (en) * | 2016-04-20 | 2019-04-05 | 电子科技大学 | A kind of ultra wide band low section circular polarisation bifilar helical antenna |
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