CN105490016A - Broadband directional antenna based on resonant reflector - Google Patents
Broadband directional antenna based on resonant reflector Download PDFInfo
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- CN105490016A CN105490016A CN201610039770.6A CN201610039770A CN105490016A CN 105490016 A CN105490016 A CN 105490016A CN 201610039770 A CN201610039770 A CN 201610039770A CN 105490016 A CN105490016 A CN 105490016A
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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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Abstract
The invention discloses a broadband directional antenna based on a resonant reflector. The broadband directional antenna is mainly composed of a broadband antenna body layer, a resonant reflector layer and a director layer. The resonant reflector layer is arranged exactly below the broadband antenna body layer. The director layer is arranged exactly above the broadband antenna body layer. The broadband antenna body layer comprises a body dielectric substrate, and a main radiation patch and a metal loading ring which are adhered on the body dielectric substrate. The resonant reflector layer comprises a resonant dielectric substrate and a metal resonant ring which is adhered on the resonant dielectric substrate. The director layer comprises a directing dielectric substrate and a metal directing ring which is adhered on the directing dielectric substrate. A higher profile required by loading of a conventional metal reflecting board on the antenna is overcome, and larger area and narrower frequency band required by loading of an AMC structure on the antenna is also overcome so that the broadband directional antenna based on the resonant reflector has dual advantages.
Description
Technical field
The present invention relates to broad-band antenna and directional antenna field, be specifically related to a kind of broadband beam antenna based on resonant mode reflector.
Background technology
Along with society and the progress of science and technology, wireless communication technology obtains and develops rapidly, and the bandwidth of signal is also in continuous improve.Ultra broadband (Ultra-Wideband) antenna have also been obtained significant progress as the core devices in wide-band communication system.But the shortcoming that ultra-wideband antenna has some general, such as has to make the sacrifice of gain in order to improve bandwidth; And the directional diagram of high frequency can worsen, etc.These shortcomings have a strong impact on communication quality.And ultra-wideband antenna normally omnidirectional radiation or bidirectional radiation, and get more and more along with the antenna on modern carrier system, electromagnetic compatibility is a very large problem; On the field needing high security and high resistance immunity, using value is also little.The way solving a simple economy of these weak points is the ultra-wideband antenna using directed radiation.
Directional antenna is generally divided into microstrip antenna, logarithm periodic antenna, Yagi antenna, parabolic antenna, horn antenna, Vivaldi antenna and uses the antenna etc. of metal mirror.Above-mentioned antenna all has higher directionality, but regrettably, they have self deficiency: microstrip antenna is owing to covering metal level as floor at the another side of medium substrate, good directionality can be obtained, but the existence of metal level causes the impedance bandwidth of microstrip antenna very narrow, usually only has about 5%; Yagi antenna has the forward gain of more than 10dBi usually, but the characteristic of its intrinsic narrow-band and end-fire limits its range of application; Logarithm periodic antenna and Vivaldi antenna belong to frequency-independent antenna, they have very wide impedance bandwidth, in whole passband, also can keep more stable directivity, but its larger size and end-fire characteristic make it in portable use field, have no advantage can be sayed simultaneously; And parabolic antenna and horn antenna have been limited range of application equally due to relatively large size.The directional antenna using metal mirror is on broad-band antenna, use metallic conductor (can be equivalent to perfact conductor, PerfectElectricConductor, PEC) as reflecting surface.According to the boundary condition on PEC surface, the tangential component of electric field is zero, so reflected wave can produce the phase difference of 180 °.The spacing that therefore must ensure antenna and metallic reflection plate is quarter-wave, makes reflected wave and direct wave can in-phase stacking in far field.The spacing of antenna and metallic reflection plate is that quarter-wave requirement makes antenna in low frequency applications will become very thick, and the bandwidth of antenna is not wide yet; In addition, for the size obtaining good directionality reflecting plate also needs comparatively large, miniaturization is unfavorable for.And except microstrip antenna, other antennas above-mentioned do not belong to low cross-section structure.
In recent years along with the development of electromagnetism Meta Materials (metamaterial), occurred that a class uses artificial magnetic conductor (ArtificialMagneticConductor, AMC) as the directional antenna of reflecting surface.AMC is by the artificial electromagnetic material of strong resonance structure periodic arrangement, with simulate ideal magnetic conductor (PerfectMagneticConductor, PMC) characteristic, make characteristic frequency realize zero phase reflection.Due to the zero phase reflection characteristic of AMC, change metallic conductor reflecting surface into AMC, the distance of antenna and AMC can be infinitely close in theory, therefore can realize the directional antenna of low section.And, the AMC of certain structures, as the mushroom-shaped electro-magnetic bandgap (Electromagneticband-gap that American scholar D.Sievenpiper in 1999 proposes, EBG) structure, zero reflected phase will frequency range is identical with the band gap frequency range of high resistant characteristic, therefore use it also to have suppression surface wave as reflecting surface simultaneously, improve the characteristic of secondary lobe and back lobe.But also there is its shortcoming on AMC surface, the frequency band on first this surface is narrow especially, is difficult to obtain broadband character, let alone ultra broadband; Secondly, AMC surface is periodic structure, and need multiple cycle to realize good function, its planar dimension is larger; The distance of the three, AMC structure and antenna is very near, and the coupling between the two is very strong, thus make the design of antenna and optimization efficiency low.
The domestic research for broadband beam antenna mostly at present is the antenna etc. of Yagi antenna, parabolic antenna, horn antenna, employing metallic reflection plate.As notification number " ultra broadband directional antenna " disclosed in the Chinese invention patent application of CN103825091A; Notification number is the Chinese invention patent application disclosed " a kind of Flat printing broadband directional antenna " of CN102544721A; Disclosed in the Chinese invention patent application of notification number to be the Chinese invention patent application disclosed " wideband directional micro-strip paster antenna " of CN102738572A and notification number be CN101752669A " broadband high-efficiency indoor directional antenna ".Although above-mentioned research creates certain directionality by certain method, their front and back ratio is not high especially, and these all methods are slightly aobvious complicated in design.Which increase design cost and inapplicable in some occasion.Further, these patents can not meet the low section of antenna, miniaturized requirement.
Summary of the invention
To be solved by this invention is that antenna loading conventional metals reflecting plate needs higher section and antenna loading AMC structure to need the deficiency of larger area and narrower frequency band, provides a kind of broadband beam antenna based on resonant mode reflector.
For solving the problem, the present invention is achieved by the following technical solutions:
Based on a broadband beam antenna for resonant mode reflector, form primarily of broad-band antenna body layer, resonant mode reflector layer and director layer; Resonant mode reflector layer is positioned at immediately below broad-band antenna body layer; Director layer is positioned at directly over broad-band antenna body layer.Above-mentioned broad-band antenna body layer comprises bulk medium substrate, primary radiation paster and Metal loading ring; Primary radiation paster and Metal loading ring post in surface, the same side of bulk medium substrate simultaneously, and Metal loading ring in the form of a ring, and are 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 comprises resonator, dielectric substrate and metal resonant ring; Metal resonant ring ring-type, and post the side surface in resonator, dielectric substrate.Above-mentioned director layer comprises guides medium substrate into and metal guides ring into; Metal guides ring ring-type into, and posts the side surface in guiding medium substrate into.
In such scheme, primary radiation paster and Metal loading ring post the upper surface in bulk medium substrate simultaneously, and metal resonant ring posts the lower surface in resonator, dielectric substrate, and metal is guided ring into and posted upper surface in guiding medium substrate into.
In such scheme, described broad-band antenna body layer also comprises a micro-band gradual change impedance transformer further, this micro-band gradual change impedance transformer is vertically placed in the below of bulk medium substrate, and the upper end of micro-band gradual change impedance transformer is connected with the distributing point of primary radiation paster.
In such scheme, the distance between resonant mode reflector layer and broad-band antenna body layer is greater than the distance between director layer and broad-band antenna body layer.
In such scheme, distance between resonant mode reflector layer and broad-band antenna body layer is 0.07 λ ~ 0.11 λ, the distance of director layer and broad-band antenna body layer is 0.03 λ ~ 0.05 λ, and wherein λ is the working band initial frequency corresponding wavelength of primary radiation paster.
In such scheme, described primary radiation paster, Metal loading ring, metal resonant ring and metal guide Ring current distribution into all in same vertical line.
In such scheme, described Metal loading ring, metal resonant ring and metal are guided ring into and are circular.
In such scheme, described primary radiation paster is fan-shaped bow tie.
In such scheme, the size of metal resonant ring and the size of Metal loading ring match, and the size of size and primary radiation paster that metal guides ring into matches.
Compared with prior art, the present invention has following features:
1, by placing resonant mode reflector layer below broad-band antenna body layer, the electromagnetic wave of wider frequency section being reflected back, with direct wave in-phase stacking above antenna of antenna body, thus obtaining wide band directed radiation ripple.
2, reflector is resonant mode structure, and size is less, and only uses a reflector just can obtain good directionality on a wide frequency band, and therefore antenna structure is compact;
3, the reflected phase will at resonant mode reflector layer place is less than 180 ° of metal floor reflector, and the distance between antenna body and reflector can much smaller than quarter-wave, and therefore antenna has again the feature of low section.
4, antenna optimization efficiency is high, has saved system resource; Be applicable in the directed radiation system of broadband, miniaturization and low section.
Accompanying drawing explanation
Fig. 1 is a kind of front view of radiating layer of the broadband beam antenna based on resonant mode reflector;
Fig. 2 is a kind of director front view layer by layer of the broadband beam antenna based on resonant mode reflector;
Fig. 3 is a kind of front view of reflector layer of the broadband beam antenna based on resonant mode reflector;
Fig. 4 is a kind of unitary side view of the broadband beam antenna based on resonant mode reflector;
Fig. 5 is the S11 curve of antenna;
Fig. 6 is the reflected phase will of resonant mode reflector layer at antenna body place of antenna;
Fig. 7 is the antenna pattern of antenna at 2.0GHz place;
Fig. 8 is the antenna pattern of antenna at 3.0GHz place;
Fig. 9 is the antenna pattern of antenna at 4.2GHz place;
Figure 10 be before antenna lobe and back lobe with the situation of change of frequency;
Figure 11 is than the situation of change with frequency before and after antenna;
Number in the figure: 1, broad-band antenna body layer; 1-1 bulk medium substrate; 1-2, primary radiation paster; 1-3, Metal loading ring; 1-4, micro-band gradual change impedance transformer; 2, 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, this antenna haves three layers, and is respectively director layer 3, broad-band antenna body layer 1 and resonant mode reflector layer 2 from top to bottom, and namely resonant mode reflector layer 2 is positioned at immediately below broad-band antenna body layer 1; Director layer 3 is positioned at directly over broad-band antenna body layer 1.In a preferred embodiment of the invention, director layer 3, broad-band antenna body layer 1 and resonant mode reflector layer 2 are supported by sticking plaster.Distance between resonant mode reflector layer 2 and broad-band antenna body layer 1 is greater than the distance between director layer 3 and broad-band antenna body layer 1.The reflected phase will of resonant mode reflector layer 2 is less than 180 ° that conventional metals reflecting plate (PEC) has, and between 90 ° to 150 °.Therefore, 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 is greater than the required zero distance of AMC, therefore reduces being coupled between antenna body with reflector, improves design efficiency, and wider frequency band can be obtained; The distance suitably chosen between resonant mode reflector layer 2 with broad-band antenna body layer 1 just can make direct wave superpose with reflected wave in phase.In the present embodiment, director layer 3 only plays bunching action in the present invention, and the distance between antenna body does not cause too much influence to the bandwidth of antenna.In a preferred embodiment of the invention, distance between resonant mode reflector layer 2 and broad-band antenna body layer 1 is 0.07 λ ~ 0.11 λ, director layer 3 is 0.03 λ ~ 0.05 λ with the distance of broad-band antenna body layer 1, and wherein λ is the working band initial frequency corresponding wavelength of primary radiation paster 1-2.
Above-mentioned broad-band antenna body layer 1 comprises bulk medium substrate 1-1, primary radiation paster 1-2, Metal loading ring 1-3 and micro-band gradual change impedance transformer 1-4.Primary radiation paster 1-2 adopts wideband patch form, to obtain broadband character.Metal loading ring 1-3 makes the radiation characteristic of antenna also greatly take on a new look while improving impedance operator further.Primary radiation paster 1-2 and Metal loading ring 1-3 all posts the upper surface in bulk medium substrate 1-1, and Metal loading ring 1-3 in the form of a ring, and is looped around the opposite exterior lateral sides of primary radiation paster 1-2.The center of primary radiation paster 1-2 is provided with distributing point.Micro-band gradual change impedance transformer 1-4 is vertically placed in the below of bulk medium substrate 1-1, and the upper end of micro-band gradual change impedance transformer 1-4 is connected with the distributing point of primary radiation paster 1-2, the lower end of micro-band gradual change impedance transformer 1-4 can vertically be suspended between broad-band antenna body layer 1 and resonant mode reflector layer 2, and the through hole also can offered from resonant mode reflector layer 2 passes perpendicularly through.In a preferred embodiment of the invention, primary radiation paster 1-2 is positioned at the center of bulk medium substrate 1-1, the external boundary of Metal loading ring 1-3 and the coincident of bulk medium substrate 1-1, primary radiation paster 1-2, Metal loading ring 1-3 and bulk medium substrate 1-1 three are concentrically.The present invention does not have considered critical for the structure of primary radiation paster 1-2, it can be the radiator antenna structure of the existing distributing point heart wherein in prior art, as can be Archimedian spiral antenna, circular patch, oval paster, triangle patch, trapezoidal paster or their distortion, but it must be symmetrical structure.In a preferred embodiment of the invention, primary radiation paster 1-2 adopts the form of fan-shaped bowknot, has better impedance operator to make antenna.This primary radiation paster 1-2 is made up of the fan-shaped metal patch that 2 are oppositely arranged, and the center of 2 fan-shaped metal patches relatively and form distributing point.Primary radiation paster 1-2 adopts fan-shaped bow tie, its fan-shaped radius r
0determine this broad-band antenna low-frequency cut-off frequency.But the antenna of general fan-shaped bow tie has a fatal shortcoming, and the reverse current namely when high frequency on paster can make directional diagram divide.In the present invention, the shape of Metal loading ring 1-3 can be for square, flower-shape or other are about centrosymmetric loop configuration, but in a preferred embodiment of the invention, Metal loading ring 1-3 is annular.The one circle Metal loading ring 1-3 by the external load at primary radiation paster 1-2, this Metal loading ring 1-3 is equivalent to 2 half-wave dipoles, Metal loading ring 1-3 corresponds to the radiation of low frequency, and the frequency that primary radiation paster 1-2 emits high levels of radiation, to obtain more consistent electric current in whole frequency range, thus improve the radiation characteristic of whole antenna, simultaneously can its impedance operator of improvement clearly.Micro-band gradual change impedance transformer 1-4 is used for for broad-band antenna body layer 1 feed.Micro-band gradual change impedance transformer 1-4 is the microstrip line gradual change balanced-to-unblanced transformer of 75 Ω-50 Ω and micro-band gradual change Ba Lun, so that antenna impedance is transformed to 50 Ω from 75 Ω.Micro-band gradual change impedance transformer 1-4 adopts the existing structure of prior art, due to for impedance transformation and the technology maturation of micro-band gradual change impedance transformer 1-4 equilibrating to unbalanced transformation, does not do too much discussion at this.
Above-mentioned resonant mode reflector layer 2 comprises resonator, dielectric substrate 2-1 and metal resonant ring 2-2.Metal resonant ring 2-2 in the form of a ring, and posts the lower surface in resonator, dielectric substrate 2-1.In a preferred embodiment of the invention, resonator, dielectric substrate 2-1 and metal resonant ring 2-2 concentrically, the external boundary of metal resonant ring 2-2 and the coincident of resonator, dielectric substrate 2-1.In the present invention, the shape of metal resonant ring 2-2 can be for square, flower-shape or other are about centrosymmetric loop configuration, but in a preferred embodiment of the invention, metal resonant ring 2-2 is annular.The electromagnetic wave acting as one section of broad spectrum low-frequency cutoff wavelength being approximately equal to its girth of metal resonant ring 2-2 reflects back with certain reflected phase will, certain distance in addition between resonant mode reflector layer 2 and broad-band antenna body layer 1 is less, the space phase introduced compensates, make the direct wave of reflected wave and antenna body at the far field in-phase stacking of upper half-space, form comparatively intense radiation; The two-way of broad-band antenna body layer 1 or omnidirectional electromagnetic wave is changed into directed radiation ripple with this.In addition, resonant mode reflector layer 2 of the present invention only needs a resonator, and its size is far smaller than the artificial magnetic conductor (ArtificialMagneticConductor, AMC) needing periodic structure to realize, and therefore has double dominant.
Above-mentioned director layer 3 comprises guides medium substrate 3-1 into and metal guides ring 3-2 into.Metal guides ring 3-2 in the form of a ring, and posts the upper surface in guiding medium substrate 3-1 into.In a preferred embodiment of the invention, guide medium substrate 3-1 into and metal guides ring 3-2 into concentrically, the external boundary that metal guides ring 3-2 into is less than the edge guiding medium substrate 3-1 into.The shape that metal guides ring 3-2 into can be for square, flower-shape or other are about centrosymmetric loop configuration, but in a preferred embodiment of the invention, it is annular that metal guides ring 3-2 into.Metal guides ring 3-2 can play pack effect to electromagnetic wave during high frequency into, be directed to improve front and back ratio during high frequency in antenna main radiation direction by the electromagnetic wave that passable frequency is high-end, to increase the directionality of antenna, and allow forward direction field angle have certain decline, improve gain
The present invention guides ring 3-2 into for primary radiation paster 1-2, Metal loading ring 1-3, metal resonant ring 2-2 and metal, and to be printed on the impact of which side surface on antenna of each medium substrate little.The preferred embodiment of the present invention is only provide a kind of preferred scheme.In the present invention, the center that primary radiation paster 1-2, Metal loading ring 1-3, metal resonant ring 2-2 and metal guide ring 3-2 into is relative or allow certain departing from vertical direction, but in order to best performance can be obtained, described primary radiation paster 1-2, Metal loading ring 1-3, metal resonant ring 2-2 and metal guide the center of ring 3-2 into all in same vertical line, and this vertical line is simultaneously perpendicular to bulk medium substrate 1-1, resonator, dielectric substrate 2-1 with guide medium substrate 3-1 into.The size of metal resonant ring 2-2 and the size of Metal loading ring 1-3 match, and namely the centering ring footpath of metal resonant ring 2-2 is equal with the centering ring footpath of Metal loading ring 1-3.The size of size and primary radiation paster 1-2 that metal guides ring 3-2 into matches, and the centering ring footpath that namely metal guides ring 3-2 into is less than or equal to the outline diameter of primary radiation paster 1-2.
By reference to the accompanying drawings, now provide the concrete data of a broadband beam antenna based on resonant mode reflector, primary radiation paster 1-2 is fan-shaped butterfly shape, and its 2 fan-shaped subtended angles of fan-shaped metal patch are 120 °, fan-shaped radius r
0for 20mm, the gap between 2 fan-shaped metal patches is 1mm, and the input impedance of this primary radiation paster 1-2 is approximately 75 Ω.Metal loading ring 1-3 is annular, and its centering ring footpath r1 is 25mm, ring width w1 is 2mm.Metal resonant ring 2-2 is annular, and the consistent size of itself and Metal loading ring 1-3, its centering ring footpath r2 is 25mm, ring width w2 is 2mm.Resonant mode reflector layer 2 is respectively 12mm and 5mm with the distance hr of broad-band antenna body layer 1 and the distance hd of director layer 3 and broad-band antenna body layer 1, wherein hr is only 0.08 λ (λ antenna low-frequency cutoff wavelength), is significantly smaller than conventional metals reflecting plate and realizes reflecting 0.25 required λ in the same way.Bulk medium substrate 1-1, resonator, dielectric substrate 2-1 and consistent size identical with guiding medium substrate 3-1 material therefor into, the relative dielectric constant of medium substrate is 2.65.
Fig. 5 is the S11 curve of antenna, and as seen from the figure, antenna is S in 2.0GHz--4.2GHz
11be less than-10dB, impedance matching property is good.Fig. 6 is the reflected phase will of resonant mode reflector layer 2 at antenna body place of antenna, as seen from the figure, in whole antenna frequency band internal reflection phase place all between-90 ° to+90 °, meet the requirement at far field reflected wave and direct wave in-phase stacking, can realize the in-phase stacking that far field is good, antenna gain is significantly improved simultaneously.Fig. 7, Fig. 8, Fig. 9 are respectively antenna at 2.0GHz, the directional diagram at 3.0GHz and 4.2GHz place, as seen from the figure, E face and the H face directional diagram at three frequency places all show obvious directional radiation properties, and directional diagram is highly stable, there is not the skew of rip-panel and main beam at high frequency.Figure 10 is the front lobe of antenna and the back lobe change curve with frequency, Figure 11 is that the front and back of antenna are than the situation with frequency change, as seen from the figure, in whole antenna operating band, the front and back of antenna are greater than 4dB than all, most high energy reaches 10dB, than highly stable before and after in whole working band, meet some specific environment require under communication.This broadband beam antenna overcomes the higher section needed for antenna loading conventional metals reflecting plate, and overcome again the deficiency of larger area required for antenna loading AMC structure and narrower frequency band, therefore, this broadband beam antenna has double dominant.
The design parameter that finally it should be noted that in described embodiment is only the invention proof procedure in order to clearly state inventor, not for limiting scope of patent protection of the present invention; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. based on the broadband beam antenna of resonant mode reflector, it is characterized in that: form primarily of broad-band antenna body layer (1), resonant mode reflector layer (2) and director layer (3); Resonant mode reflector layer (2) is positioned at immediately below broad-band antenna body layer (1); Director layer (3) is positioned at directly over broad-band antenna body layer (1);
Above-mentioned broad-band antenna body layer (1) comprises 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) post in surface, the same side of bulk medium substrate (1-1) simultaneously, and Metal loading ring (1-3) in the form of a ring, and be looped around the opposite exterior lateral sides of primary radiation paster (1-2); The center of primary radiation paster (1-2) is provided with distributing point;
Above-mentioned resonant mode reflector layer (2) comprises resonator, dielectric substrate (2-1) and metal resonant ring (2-2); Metal resonant ring (2-2) in the form of a ring, and posts the side surface in resonator, dielectric substrate (2-1);
Above-mentioned director layer (3) comprises guides medium substrate (3-1) into and metal guides ring (3-2) into; Metal guides ring (3-2) in the form of a ring, and posts the side surface in guiding medium substrate (3-1) into.
2. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: primary radiation paster (1-2) and Metal loading ring (1-3) post the upper surface in bulk medium substrate (1-1) simultaneously, metal resonant ring (2-2) posts the lower surface in resonator, dielectric substrate (2-1), and metal is guided ring (3-2) into and posted upper surface in guiding medium substrate (3-1) into.
3. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: described broad-band antenna body layer (1) also comprises a micro-band gradual change impedance transformer (1-4) further, this micro-band gradual change impedance transformer (1-4) is vertically placed in the below of bulk medium substrate (1-1), and the upper end of micro-band gradual change impedance transformer (1-4) is connected with the distributing point of primary radiation paster (1-2).
4. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: the distance between resonant mode reflector layer (2) and broad-band antenna body layer (1) is greater than the distance between director layer (3) and broad-band antenna body layer (1).
5. according to claim 1 or 4 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: the distance between resonant mode reflector layer (2) and broad-band antenna body layer (1) is 0.07 λ ~ 0.11 λ, director layer (3) is 0.03 λ ~ 0.05 λ with the distance of broad-band antenna body layer (1), and wherein λ is the working band initial frequency corresponding wavelength of primary radiation paster (1-2).
6. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: described primary radiation paster (1-2), Metal loading ring (1-3), metal resonant ring (2-2) and metal guide the center of ring (3-2) into all in same vertical line, its this vertical line is simultaneously vertical with guiding medium substrate (3-1) into bulk medium substrate (1-1), resonator, dielectric substrate (2-1).
7. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: described Metal loading ring (1-3), metal resonant ring (2-2) and metal are guided ring (3-2) into and be circular.
8. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: described primary radiation paster (1-2) is fan-shaped bow tie.
9. according to claim 1 based on the broadband beam antenna of resonant mode reflector, it is characterized in that: the size of metal resonant ring (2-2) and the size of Metal loading ring (1-3) match, the size of size and primary radiation paster (1-2) that metal guides ring (3-2) into matches.
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| CN111082214A (en) * | 2018-10-22 | 2020-04-28 | 杭州海康威视数字技术股份有限公司 | UHF directional antenna |
| CN111082214B (en) * | 2018-10-22 | 2022-04-19 | 杭州海康威视数字技术股份有限公司 | UHF directional antenna |
| CN110828996A (en) * | 2019-11-19 | 2020-02-21 | 中国地质大学（北京） | Butterfly antenna assembly |
| CN113097702A (en) * | 2019-12-23 | 2021-07-09 | 北京华航无线电测量研究所 | Frequency/polarization hybrid reconfigurable antenna |
| CN111082212A (en) * | 2020-01-03 | 2020-04-28 | 广东通宇通讯股份有限公司 | Double-layer guiding space coupling ultra-wideband radiation unit |
| CN113497343A (en) * | 2020-03-20 | 2021-10-12 | 北京小米移动软件有限公司 | Antenna structure and electronic device |
| CN112421236A (en) * | 2020-10-14 | 2021-02-26 | 西安电子科技大学 | Coplanar antenna capable of directionally radiating along surface of carrier |
| CN112886974A (en) * | 2021-01-27 | 2021-06-01 | 四川荣川通用航空有限责任公司 | Multifunctional airborne navigation equipment |
| CN112886974B (en) * | 2021-01-27 | 2022-03-11 | 四川荣川通用航空有限责任公司 | Multifunctional airborne navigation equipment |
| CN116169468A (en) * | 2023-04-24 | 2023-05-26 | 吉林大学 | Ultra-wideband directional radiation antenna of ground penetrating radar |
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