CN205050968U - Super material band -pass filtering structure , antenna house and antenna system - Google Patents
Super material band -pass filtering structure , antenna house and antenna system Download PDFInfo
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- CN205050968U CN205050968U CN201520764657.5U CN201520764657U CN205050968U CN 205050968 U CN205050968 U CN 205050968U CN 201520764657 U CN201520764657 U CN 201520764657U CN 205050968 U CN205050968 U CN 205050968U
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Abstract
The utility model provides a super material band -pass filtering structure, antenna house and antenna system. Should include by super material band -pass filtering structure: base plate and the electrically conductive geometry layer of the at least one deck of setting on the base plate, electrically conductive geometry layer is including electrically conductive plate and a plurality of conducting strip, every fretwork portion on the electrically conductive plate includes a concave shape fretwork and the 2nd concave shape fretwork, and the notch of a concave shape fretwork and the notch of the 2nd concave shape fretwork set up each other with deviating from, and through style of calligraphy fretwork intercommunication between a concave shape fretwork and the 2nd concave shape fretwork, and a style of calligraphy fretwork lies in between a concave shape fretwork and the 2nd concave shape fretwork, the conducting strip correspond to set up in fretwork portion, has the interval between the edge of the contour's edge of conducting strip and the fretwork portion that corresponds. Use the technical scheme of the utility model filtering structure is to the good just TE ripples of working frequency band electromagnetic wave inhibiting effect outward of antenna and the single problem of permeable wave -wave section of TM ripples in can solving prior art.
Description
Technical field
The utility model relates to filter apparatus field, in particular to a kind of Meta Materials bandpass filtering structure, radome and antenna system.
Background technology
Generally, antenna system all can be provided with radome.The object of radome protects antenna system from the impact of wind and rain, ice and snow, sand and dust and solar radiation etc., makes antenna system service behaviour more stable, reliable.Alleviate the wearing and tearing of antenna system, corrosion and aging simultaneously, increase the service life.But radome is the barrier before antenna, can produces aerial radiation ripple and absorb and reflection, change the free space Energy distribution of antenna, and affect the electric property of antenna to a certain extent.
Use pure material radome can affect the performance of antenna in certain scope.Wherein, be common physical material for making the pure material of radome, when making pure material radome, utilize half-wavelength or quarter-wave theory, and according to different antenna frequencies, change the thickness of pure material, in order to reduce to respond electromagnetic wave transparent.When designing and producing pure material radome, when the wavelength of radiated wave of antenna is long, utilize half-wavelength or quarter-wave theory, pure material radome can seem thicker, and then makes the weight of whole radome excessive.On the other hand, the wave penetrate capability of pure material is more homogeneous, wave transparent in working frequency range, and its successive bands wave transmission effect is also excellent, the normal work of the easy potato masher antenna of the wave transparent outside working frequency range.
For filter structure in prior art bad and TE ripple (longitudinal wave) and TM ripple (lateral wave) to the electromagnetic wave inhibition outside the working frequency range of antenna can the single problem of wave transparent wave band, at present effective solution is not yet proposed.
Utility model content
Main purpose of the present utility model is to provide a kind of Meta Materials bandpass filtering structure, radome and antenna system, can the single problem of wave transparent wave band with what solve filter structure in prior art bad and TE ripple and TM ripple to the electromagnetic wave inhibition outside the working frequency range of antenna.
To achieve these goals, according to an aspect of the present utility model, provide a kind of Meta Materials bandpass filtering structure, comprising: substrate; At least one deck conduction geometry layer, conduction geometry layer is arranged on substrate, and conduction geometry layer comprises conductive plate piece and multiple conducting strip; Wherein, conductive plate piece is provided with multiple hollow-out parts, each hollow-out parts comprises the first concave character type hollow out and the second concave character type hollow out, the recess of the first concave character type hollow out and the recess of the second concave character type hollow out are arranged away from one another, hollow-out parts also comprises yi word pattern hollow out, be communicated with by yi word pattern hollow out between first concave character type hollow out with the second concave character type hollow out, and yi word pattern hollow out is between the first concave character type hollow out and the second concave character type hollow out; Conducting strip correspondence is arranged in hollow-out parts, has interval between the contour edge of conducting strip and the edge of corresponding hollow-out parts.
Further, the plate that is structure as a whole of conductive plate piece.
Further, the rectangular array distribution of multiple hollow-out parts.
Further, each conducting strip comprises: the first concave character type portion, and the first concave character type portion coordinates with the first concave character type hollow out and is positioned at the first concave character type hollow out; Second concave character type portion, the second concave character type portion coordinates with the second concave character type hollow out and is positioned at the second concave character type hollow out; Connecting portion, connecting portion, in yi word pattern hollow out, is connected by connecting portion between the first concave character type portion with the second concave character type portion.
Further, the geometric center of conducting strip overlaps with the geometric center of corresponding hollow-out parts.
Further, the distance between the contour edge of conducting strip and the edge of corresponding hollow-out parts is L, 0.2mm≤L≤0.5mm.
Further, at least one deck conduction geometry layer is identical two-layer of structure, two-layer conduction geometry layer is arranged along the interval, direction perpendicular to conduction geometry layer, and wherein the projection of each conducting strip of one deck conduction geometry layer overlaps with the small part that is projected to of the conducting strip of the correspondence position of another layer of conduction geometry layer.
Further, wherein the projection of each conducting strip of one deck conduction geometry layer coincides with the projection of the corresponding conducting strip of another layer of conduction geometry layer.
Further, substrate is honeycomb substrate, and honeycomb substrate is arranged between two-layer conduction geometry layer.
Further, the thickness of substrate is H, 4.5mm≤H≤10.0mm.
Further, Meta Materials bandpass filtering structure also comprises prepreg substrate, is provided with prepreg substrate, conduction geometry layer and substrate isolates to be opened between conduction geometry layer and substrate.
Further, Meta Materials bandpass filtering structure also comprises polylith prepreg substrate, and each conduction geometry layer is folded between two pieces of prepreg substrates to open with substrate isolates.
Further, the Thickness Ratio away from the prepreg substrate of honeycomb substrate is thick near the thickness of the prepreg substrate of honeycomb substrate.
Further, Meta Materials bandpass filtering structure also comprises soft board layer, and soft board layer is arranged between conduction geometry layer and prepreg substrate, and conduction geometry layer and soft board layer fit.
Further, Meta Materials bandpass filtering structure also comprises multiple soft board layer, and every layer of conduction geometry layer is folded between two soft board layers to open with prepreg substrate isolates.
Further, mutually bonding between substrate and adjacent prepreg substrate, and/or mutually bonding between prepreg substrate and adjacent soft board layer, and/or mutually bonding between conduction geometry layer and adjacent soft board layer.
According to another aspect of the present utility model, provide a kind of radome, comprise filter structure, this filter structure is aforesaid Meta Materials bandpass filtering structure.
According to another aspect of the present utility model, provide a kind of antenna system, comprise radome, this radome is aforesaid radome.
Application the technical solution of the utility model, this is torn material webs pass filter structure open and comprises substrate and at least one deck conduction geometry layer, wherein, every layer of conduction geometry layer comprises conductive plate piece and conducting strip, conductive plate piece offers hollow-out parts, and be placed in hollow out by conducting strip, and the edge of the contour edge of conducting strip and hollow-out parts has interval.Above-mentioned Meta Materials bandpass filtering structure can regulate dielectric constant and magnetic permeability, better resonance effect is produced by the electromagnetic wave of conduction geometry layer to incidence, thus when electromagnetic wave is by Meta Materials bandpass filtering structure of the present utility model, TE wave energy is made enough to realize the band-pass filtering function of two section wavelength band, and TM wave energy enough realizes the band-pass filtering function of three sections of wavelength band, the electromagnetism wave energy high efficiency of working frequency range penetrates, and the electromagnetic wave effectively ended outside working frequency range, thus solve existing filter structure bad and TE ripple and TM ripple to the electromagnetic wave inhibition outside the working frequency range of antenna can the single problem of wave transparent wave band.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the fit structure schematic diagram according to the conductive plate piece in the single hollow-out parts of the embodiment of Meta Materials bandpass filtering structure of the present utility model and conducting strip;
Fig. 2 shows the partial structurtes schematic diagram of the embodiment according to Meta Materials bandpass filtering structure of the present utility model;
Fig. 3 shows the main TV structure schematic diagram of the conductive plate of c1 × c2 according to the embodiment of Meta Materials bandpass filtering structure of the present utility model and the fit structure of conducting strip;
Fig. 4 shows the sectional structure schematic diagram of Fig. 2;
Fig. 5 shows the CST simulation result S21 Contrast on effect curve chart of TE ripple according to Meta Materials bandpass filtering structure of the present utility model and TM ripple;
Fig. 6 shows the TE ripple CST simulation result curve chart according to Meta Materials bandpass filtering structure of the present utility model;
The TE ripple that Fig. 7 shows Fig. 6 take first band as the CST simulation result curve chart of core;
The TE ripple that Fig. 8 shows Fig. 6 take second band as the CST simulation result curve chart of core bands;
Fig. 9 shows the TM ripple CST simulation result curve chart according to Meta Materials bandpass filtering structure of the present utility model;
Figure 10 shows the CST simulation result curve chart that the TM ripple of Fig. 9 is core with the 3rd wave band;
Figure 11 shows the CST simulation result curve chart that the TM ripple of Fig. 9 is core with the 4th wave band;
Figure 12 shows the CST simulation result curve chart that the TM ripple of Fig. 9 is core with the 5th wave band.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, substrate; 20, conduction geometry layer;
21, conductive plate piece; 22, conducting strip;
211, the first concave character type hollow out; 212, the second concave character type hollow out;
213, yi word pattern hollow out; 30, prepreg substrate;
40, soft board layer.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As depicted in figs. 1 and 2, present embodiments provide a kind of Meta Materials bandpass filtering structure, this Meta Materials bandpass filtering structure comprises substrate 10 and at least one deck conduction geometry layer 20, conduction geometry layer 20 arranges on the substrate 10, and conduction geometry layer 20 comprises conductive plate piece 21 and multiple conducting strip 22.Wherein, conductive plate piece 21 is provided with multiple hollow-out parts, each hollow-out parts comprises the first concave character type hollow out 211 and the second concave character type hollow out 212, the recess of the first concave character type hollow out 211 and the recess of the second concave character type hollow out 212 are arranged away from one another, hollow-out parts also comprises yi word pattern hollow out 213, be communicated with by yi word pattern hollow out 213 between first concave character type hollow out 211 with the second concave character type hollow out 212, and yi word pattern hollow out 213 is between the first concave character type hollow out 211 and the second concave character type hollow out 212, conducting strip 22 correspondence is arranged in hollow-out parts, between the contour edge of conducting strip 22 and the edge of corresponding hollow-out parts, there is interval.The edge contour shape of conducting strip 22 is consistent with the contour shape of hollow-out parts, particularly, each conducting strip 22 comprises the first concave character type portion, the second concave character type portion and connecting portion, in the present embodiment, first concave character type portion coordinates with the first concave character type hollow out 211 and is positioned at the first concave character type hollow out 211, second concave character type portion coordinates with the second concave character type hollow out 212 and is positioned at the second concave character type hollow out 212, connecting portion, in yi word pattern hollow out 213, is connected by connecting portion between the first concave character type portion with the second concave character type portion.
Above-mentioned Meta Materials bandpass filtering structure can regulate dielectric constant and magnetic permeability, better resonance effect is produced by the electromagnetic wave (comprising TE ripple and TM ripple) of conduction geometry layer to incidence, thus when electromagnetic wave is by Meta Materials bandpass filtering structure of the present utility model, make TE ripple (longitudinal wave) that the band-pass filtering function of two section wavelength band can be realized, and TM ripple (lateral wave) can realize the band-pass filtering function of three sections of wavelength band, the electromagnetism wave energy high efficiency of working frequency range penetrates, and the electromagnetic wave effectively ended outside working frequency range, thus solve existing filter structure to electromagnetic wave (TE ripple and the TM ripple outside the working frequency range of antenna, i.e. longitudinal wave and lateral wave) the bad and TE ripple (longitudinal wave) of inhibition and TM ripple (lateral wave) can the single problem of wave transparent wave band.
The function of what the Meta Materials bandpass filtering structure due to the present embodiment realized is bandpass filtering, therefore the plate that is structure as a whole of the conductive plate piece 21 of this Meta Materials bandpass filtering structure, namely conductive plate piece 21 is the continuous conduction parts in conduction geometry layer 20, thus can realize the target of bandpass filtering.
The conduction geometry layer 20 of the present embodiment can use any electric conducting material manufacture to process, it can be metal material, such as the mixture of gold, silver, copper or several metal, preferably adopts copper, and the original form of the metal material used can be solid, liquid, stream-like body or powder; Also can be nonmetallic materials, as electrically conductive ink.
In the present embodiment, as shown in Figure 2, the rectangular array distribution of multiple hollow-out parts, and the geometric center of conducting strip 22 overlaps with the geometric center of corresponding hollow-out parts.Like this, when electromagnetic wave (i.e. TE ripple and/or TM ripple) this Meta Materials bandpass filtering structure incident, electromagnetic wave can be made between conductive plate piece 21 and conducting strip 22 to produce resonance effect, thus improve the wave transparent energy of TE ripple and TM ripple, make the TE ripple in working frequency range and TM wave energy wave transparent enough expeditiously.
In order to improve conductive plate piece 21 and conducting strip 22 further to electromagnetic resonance effect, in the present embodiment, the distance between the contour edge of conducting strip 22 and the edge of corresponding hollow-out parts is L, 0.2mm≤L≤0.5mm, preferably, and L=0.3mm.
As shown in Figure 3, in one deck conduction geometry layer 20, isolate the cell block of c1 × c2 (c1=10mm, c2=15mm), and when being separated, in the centre position of adjacent rows hollow-out parts separately.First concave character type portion is all identical with size with the shape in the second concave character type portion, and the recess of the corresponding first concave character type hollow out 211 of the recess in the first concave character type portion, the recess of the corresponding second concave character type hollow out 212 of recess in the second concave character type portion, is then coupled together the first concave character type portion and the second concave character type portion by connecting portion.In the present embodiment, the a1=4.35mm shown in Fig. 3, wherein, a1=a2+a3, a2=2.0mm, a3=2.35mm.The width of connecting portion is a4, preferably, and a4=0.8mm; The length of connecting portion is a5, a5=4.3mm.
In each hollow-out parts of the present embodiment, the height of the first concave character type hollow out 211 is b1,3.95mm≤b1≤5.95mm, preferably b1=4.95mm.The length of the projecting edge of the notched side of the first concave character type hollow out 211 is b2, 2.5mm≤b2≤4.5mm, preferably b2=3.5mm, the width of the projecting block of the recess of the formation first concave character type hollow out 211 of conductive plate piece 21 is b3, 1.45mm≤b3≤2.20mm, preferably b3=1.8mm, the width forming the conductive plate piece 21 of yi word pattern hollow out 213 is b4, 2.95mm≤b4≤4.45mm, preferably b4=3.7mm, and the edge length of the formation first concave character type hollow out 211 of the conductive plate piece 21 adjacent with b4 edge is b5, 2.95mm≤b5≤4.45mm, preferably b5=3.7mm.In the present embodiment, the edge length be parallel on yi word pattern hollow out bearing of trend of each hollow-out parts is between 10.5mm to 16.5mm, preferably the length of yi word pattern hollow out is 13.6mm, each hollow-out parts along being 8.0mm to 10.0mm perpendicular to the width in yi word pattern hollow out direction, preferably the width of yi word pattern hollow out is 8.8mm.
As depicted in figs. 1 and 2, in the present embodiment, this Meta Materials bandpass filtering structure is made up of two-layer conduction geometry layer 20, two-layer conduction geometry layer 20 is arranged along the interval, direction perpendicular to conduction geometry layer 20, the thickness of every layer of conduction geometry layer 20 of the present embodiment is between 0.0145mm to 0.0215mm, preferably the thickness of every layer of conduction geometry layer 20 is 0.018mm, and wherein the projection of each conducting strip 22 of one deck conduction geometry layer 20 overlaps with the small part that is projected to of the conducting strip 22 of the correspondence position of another layer of conduction geometry layer 20.When electromagnetic wave incident, between the conductive plate piece 21 not only in same layer and conducting strip 22, resonance effect is produced to electromagnetic wave, and make electromagnetic wave also can produce resonance effect to electromagnetic wave between two-layer conduction geometry layer 20.Further, in order to resonance effect can be produced to the electromagnetic wave of incidence better, enable the electromagnetic wave wave transparent efficiently in working frequency range, therefore, the projection of each conducting strip 22 of wherein one deck conduction geometry layer 20 of two-layer conduction geometry layer 20 coincides (namely both projections overlap completely) with the projection of the corresponding conducting strip 22 of another layer of conduction geometry layer 20.Preferably, the two-layer conduction geometry layer 20 of the present embodiment is the two-layer conduction geometry layer that structure is identical, and namely in two-layer conduction geometry layer 20, the shape of hollow-out parts and conducting strip 22 is all identical with size dimension.
As shown in Figure 4, the substrate 10 of the present embodiment is honeycomb substrate, and honeycomb substrate is arranged between two-layer conduction geometry layer 20.Like this, two-layer conduction geometry layer 20 can be separated by honeycomb substrate, and the thickness of substrate 10 is H, 4.5mm≤H≤10.0mm, preferably, and the thickness H=6.5mm of honeycomb substrate.Like this, honeycomb substrate separates suitable distance by between two-layer conduction geometry layer 20, thus the electromagnetic resonance effect of effective raising.
In order to fit with substrate 10 with can making conduction geometry layer 20 more convenient and quicker when assembling this Meta Materials bandpass filtering structure, thus in this Meta Materials bandpass filtering structure, prepreg substrate 30 is utilized, prepreg substrate 30 is provided with between conduction geometry layer 20 and substrate 10, so that each conduction geometry layer 20 is kept apart (now with substrate 10, one piece of prepreg substrate 30 is only had to be arranged between conduction geometry layer 20 and substrate 10, namely the geometry layer 20 that conducts electricity is provided with prepreg substrate 30 and conducts electricity the opposite side of geometry layer 20 and then do not arrange prepreg substrate 30 towards the side of substrate 10).
In order to protect conduction geometry layer 20 better, conduction geometry layer is not allowed to be subject to the impact of external environment, corrode and cause aging even weathering, therefore, each conduction geometry layer 20 is folded between two pieces of prepreg substrates 30 to keep apart (now with substrate 10, the both sides of every layer of conduction geometry layer 20 are provided with prepreg substrate 30, wherein, prepreg substrate 30 away from substrate 10 can prevent conduction geometry layer 20 to be subject to the impact of the wind and weather of external environment well, thus extend the useful life of this Meta Materials bandpass filtering structure).In the present embodiment, the Thickness Ratio away from the prepreg substrate 30 of honeycomb substrate is thick near the thickness of the prepreg substrate 30 of honeycomb substrate.Like this, even if away from the prepreg substrate 30 of honeycomb substrate under the impact of external environment, the structure of this Meta Materials bandpass filtering inside configuration also can be protected preferably to form.Preferably, in the present embodiment, the thickness away from two pieces of prepreg substrates 30 of honeycomb substrate is equal, and the thickness away from two pieces of prepreg substrates 30 of honeycomb substrate is between 0.5mm to 1.0mm, is preferably 0.8mm; Thickness in addition near two pieces of prepreg substrates 30 of honeycomb substrate is also equal, thickness near two pieces of prepreg substrates 30 of honeycomb substrate is 0.3mm to 0.6mm, is preferably 0.4mm (the Meta Materials bandpass filtering structure of the present embodiment is provided with four pieces of prepreg substrates 30 altogether).
In the process manufacturing this Meta Materials bandpass filtering structure of processing, consider the ability of directly fitting between conduction geometry layer 20 and prepreg substrate 30, can more rapidly and realize between prepreg substrate 30 in order to conduction geometry layer 20 can be made fitting, therefore, this Meta Materials bandpass filtering structure utilizes soft board layer 40 to improve the laminating ability of this Meta Materials bandpass filtering structure, in the present embodiment, soft board layer 40 is arranged between conduction geometry layer 20 and prepreg substrate 30, and conduction geometry layer 20 fits (now with soft board layer 40, one piece of soft board layer 40 is only provided with) between conduction geometry layer 20 and the prepreg substrate 30 of close substrate 10.
Can more rapidly and realize between prepreg substrate 30 in order to conduction geometry layer 20 can not only be made fitting, and in order to the internal structure of this Meta Materials bandpass filtering structure can be made more firm, therefore, utilize multiple soft board layer 40 in the present embodiment, every layer of conduction geometry layer 20 is folded between two soft board layers 40 to keep apart with prepreg substrate 30.Like this, the both sides of every layer of conduction geometry layer 20 are provided with soft board layer 40, in the engineering manufacturing processing, staff utilizes after conduction geometry layer 20 clamps by soft board layer 40, then directly utilize soft board layer 40 and prepreg substrate 30 to fit, thus utilize two pieces of prepreg substrates 30 to be clamped by conduction geometry layer 20.In the present embodiment, soft board layer 40 is the plastics offset plate of thin layer, soft board layer 40 has certain hardness, but it can bend and have certain intensity to realize stretching, before conduction geometry layer 20 is bonded on prepreg substrate 30, first utilize soft board layer 40 by stable for conduction geometry layer 20 to make component parts in conduction geometry layer 20 swing displacement, thus reach accurately bonding object., the scope of the thickness of each soft board layer 40 is 0.02mm to 0.03mm, and preferred thickness is 0.025mm.
In the present embodiment, the conveniently manufacture processing of this Meta Materials bandpass filtering structure, therefore, mutually bonding between substrate 10 and adjacent prepreg substrate 30, and/or mutually bonding between prepreg substrate 30 and adjacent soft board layer 40, and/or mutually bonding between conduction geometry layer 20 and adjacent soft board layer 40.Utilize the Gumming glue film that adhesive property is good, thus improve the manufacture working (machining) efficiency of this Meta Materials bandpass filtering structure, and the structural strength of this Meta Materials bandpass filtering structure can be improved preferably, improve the quality of products.Preferably, in the Meta Materials bandpass filtering structure of the present embodiment, conduction geometry layer 20 is with between soft board layer 40, between soft board layer 40 with prepreg substrate 30 and be bonding between prepreg substrate 30 with substrate 10 (i.e. honeycomb substrate).And, consider the adhesive property between prepreg substrate 30 and honeycomb substrate, prepreg substrate 30 difficulty bonding with between honeycomb substrate is larger, therefore, at prepreg substrate 30 with to utilize the adhesive film of 0.1mm left and right thickness to carry out between honeycomb substrate bonding, improve the adhesive strength between prepreg substrate 30 and honeycomb substrate, in the present embodiment, the thickness range of adhesive film is 0.08mm to 0.12mm, is preferably 0.1mm.
Certainly, staff also can to power on the conduction geometry layer 20 plating out and design at soft board layer 40, then utilizes bonding technique, and soft board layer 40 is bonding with prepreg substrate 30, and/or by bonding with honeycomb substrate for prepreg substrate 30.
In the Meta Materials bandpass filtering structure of the present embodiment, the scope of the dielectric constant of prepreg substrate 30 is 2.52≤ε≤3.78, preferably ε=3.15, and the scope of its proportion of goods damageds is 0.004≤loss≤0.006, preferably, and loss=0.005.The dielectric constant range of honeycomb substrate is 0.84≤ε≤1.26, ε=1.05 in the present embodiment, and its proportion of goods damageds scope is 0.0045≤loss≤0.0072, preferably loss=0.006.The scope of the dielectric constant of soft board layer 40 is 2.56≤ε≤3.84, and preferably the scope of its proportion of goods damageds of ε=3.2 is 0.0016≤loss≤0.0024, preferably, and loss=0.002.Prepreg substrate 30 with apply adhesive film between honeycomb substrate and carry out bonding, the scope of the dielectric constant of this adhesive film is 2.32≤ε≤3.48, preferably ε=2.9, and the scope of its proportion of goods damageds is 0.0064≤loss≤0.0096, preferably, loss=0.008.
According to another aspect of the present utility model, provide a kind of radome, this radome comprises filter structure, and this filter structure is aforesaid Meta Materials bandpass filtering structure.
According to another aspect of the present utility model, provide a kind of antenna system, this antenna system comprises radome, and this radome is aforesaid radome.
As shown in Figure 5, it illustrates the TE ripple of Meta Materials bandpass filtering structure and the CST simulation result S21 Contrast on effect curve chart of TM ripple, namely when TE ripple and TM ripple simultaneously this Meta Materials bandpass filtering structure incident time, the Contrast on effect of the wave transparent energy curve of TE ripple and the wave transparent energy curve of TM ripple.Utilize the Meta Materials bandpass filtering structure of the present embodiment, incident TE ripple has two sections of wave transparent wave bands, and the TM ripple of incidence has three sections of wave transparent wave bands.
In order to this Meta Materials bandpass filtering structure TE ripple wave transparent ability corresponding respectively and TM ripple wave transparent ability clearly can be understood, therefore test the curve of the CST simulation result of incident TE ripple and TM ripple respectively.
As shown in Figure 6, it is the TE ripple CST simulation result curve chart of this Meta Materials bandpass filtering structure.Can know, when TE ripple this Meta Materials bandpass filtering structure incident, to there are first band and second band two wave transparent wave bands from Fig. 6.As shown in Figure 7, the CST simulation result curve chart of its to be TE ripple with first band be core, first band is 3.01GHz to 4.51GHz wave band.As shown in Figure 8, the CST simulation result curve chart of its to be TE ripple with second band be core, second band is 15.09GHz to 15.55GHz wave band.In first band and second band, the wave transparent energy (namely shown in S21 curve) of TE ripple is all higher than-2.77dB, and TE ripple is in the wavelength band of below 1.85GHz and more than 16.11GHz, the wave transparent energy of TE ripple all lower than-20dB (in the wavelength band of first band and second band, TE wave reflection energy is all lower than wave transparent energy, and the S11 curve shown in Fig. 6 to Fig. 8 represents TE wave reflection energy).
As shown in Figure 9, it is the TM ripple CST simulation result curve chart of this Meta Materials bandpass filtering structure.Can know from Fig. 9, when TM ripple this Meta Materials bandpass filtering structure incident, there are the 3rd wave band, the 4th wave band and the 5th wave band three wave transparent wave bands, as shown in Figure 10, it is the CST simulation result curve chart that TM ripple is core with the 3rd wave band, and the 3rd wave band is 2.85GHz to 3.21GHz wave band.As shown in figure 11, it is the CST simulation result curve chart that TM ripple is core with the 4th wave band, and the 4th wave band is 8.66GHz to 9.78GHz wave band.As shown in figure 12, it is the CST simulation result curve chart that TM ripple is core with the 5th wave band, and the 5th wave band is 14.53GHz to 14.80GHz wave band.At the 3rd wave band, in the wavelength band of the 4th wave band and the 5th wave band, the wave transparent energy (namely shown in S ' 21 curve) of TM ripple is all higher than-2.77dB, and TM ripple is in the wave band of the scope of below 2.43GHz and more than 16.23GHz, the wave transparent energy of TM ripple is all lower than-20dB, and TM ripple is in the wavelength band of 3.42GHz to 7.44GHz and the wavelength band of 11.24GHz to 14.19GHz, the wave transparent energy of TM ripple is all lower than-20dB, at the 3rd wave band, in the wavelength band of the 4th wave band and the 5th wave band, TM wave reflection energy is all lower than wave transparent energy, S ' 11 curve shown in Fig. 9 to Figure 12 represents TM wave reflection energy.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (18)
1. a Meta Materials bandpass filtering structure, is characterized in that, comprising:
Substrate (10);
At least one deck conduction geometry layer (20), described conduction geometry layer (20) is arranged on described substrate (10), and described conduction geometry layer (20) comprises conductive plate piece (21) and multiple conducting strip (22); Wherein,
(21) are provided with multiple hollow-out parts to described conductive plate piece, each hollow-out parts comprises the first concave character type hollow out (211) and the second concave character type hollow out (212), the recess of described first concave character type hollow out (211) and the recess of described second concave character type hollow out (212) are arranged away from one another, described hollow-out parts also comprises yi word pattern hollow out (213), be communicated with by described yi word pattern hollow out (213) between described first concave character type hollow out (211) with described second concave character type hollow out (212), and described yi word pattern hollow out (213) is positioned between described first concave character type hollow out (211) and described second concave character type hollow out (212),
Described conducting strip (22) correspondence is arranged in described hollow-out parts, has interval between the contour edge of described conducting strip (22) and the edge of corresponding described hollow-out parts.
2. Meta Materials bandpass filtering structure according to claim 1, is characterized in that, the plate that described conductive plate piece (21) is structure as a whole.
3. Meta Materials bandpass filtering structure according to claim 1, is characterized in that, the rectangular array distribution of described multiple hollow-out parts.
4. Meta Materials bandpass filtering structure according to claim 1, is characterized in that, each conducting strip (22) comprising:
First concave character type portion, described first concave character type portion coordinates with described first concave character type hollow out (211) and is positioned at described first concave character type hollow out (211);
Second concave character type portion, described second concave character type portion coordinates with described second concave character type hollow out (212) and is positioned at described second concave character type hollow out (212);
Connecting portion, described connecting portion, in described yi word pattern hollow out (213), is connected by described connecting portion between described first concave character type portion with described second concave character type portion.
5. Meta Materials bandpass filtering structure according to claim 4, is characterized in that, the geometric center of described conducting strip (22) overlaps with the geometric center of corresponding described hollow-out parts.
6. Meta Materials bandpass filtering structure according to claim 5, is characterized in that, the distance between the contour edge of described conducting strip (22) and the edge of corresponding described hollow-out parts is L, 0.2mm≤L≤0.5mm.
7. Meta Materials bandpass filtering structure according to any one of claim 1 to 6, it is characterized in that, described at least one deck conduction geometry layer (20) is identical two-layer of structure, two-layer described conduction geometry layer (20) is arranged along the interval, direction perpendicular to described conduction geometry layer (20), and the projection of each described conducting strip (22) of geometry layer (20) of wherein conducting electricity described in one deck overlaps with the small part that is projected to of the described conducting strip (22) of the correspondence position of another layer of described conduction geometry layer (20).
8. Meta Materials bandpass filtering structure according to claim 7, it is characterized in that, the projection of each described conducting strip (22) of geometry layer (20) of wherein conducting electricity described in one deck coincides with the projection of the corresponding described conducting strip (22) of another layer of described conduction geometry layer (20).
9. Meta Materials bandpass filtering structure according to claim 7, is characterized in that, described substrate (10) is honeycomb substrate, and described honeycomb substrate is arranged between two-layer described conduction geometry layer (20).
10. Meta Materials bandpass filtering structure according to claim 9, is characterized in that, the thickness of described substrate (10) is H, 4.5mm≤H≤10.0mm.
11. Meta Materials bandpass filtering structures according to claim 9, it is characterized in that, described Meta Materials bandpass filtering structure also comprises prepreg substrate (30), prepreg substrate (30) is provided with, described conduction geometry layer (20) and substrate (10) to be kept apart between described conduction geometry layer (20) and described substrate (10).
12. Meta Materials bandpass filtering structures according to claim 9, it is characterized in that, described Meta Materials bandpass filtering structure also comprises polylith prepreg substrate (30), and each described conduction geometry layer (20) is folded between two pieces of described prepreg substrates (30) to keep apart with described substrate (10).
13. Meta Materials bandpass filtering structures according to claim 12, it is characterized in that, the Thickness Ratio away from the described prepreg substrate (30) of described honeycomb substrate is thick near the thickness of the described prepreg substrate (30) of described honeycomb substrate.
14. Meta Materials bandpass filtering structures according to claim 12, it is characterized in that, described Meta Materials bandpass filtering structure also comprises soft board layer (40), described soft board layer (40) is arranged between described conduction geometry layer (20) and described prepreg substrate (30), and described conduction geometry layer (20) and described soft board layer (40) fit.
15. Meta Materials bandpass filtering structures according to claim 12, it is characterized in that, described Meta Materials bandpass filtering structure also comprises multiple soft board layer (40), and every layer of described conduction geometry layer (20) is folded between two described soft board layers (40) to keep apart with described prepreg substrate (30).
16. Meta Materials bandpass filtering structures according to claim 15, it is characterized in that, mutually bonding between described substrate (10) and adjacent described prepreg substrate (30), and/or mutually bonding between described prepreg substrate (30) and adjacent described soft board layer (40), and/or mutually bonding between described conduction geometry layer (20) and adjacent described soft board layer (40).
17. 1 kinds of radomes, comprise filter structure, it is characterized in that, the Meta Materials bandpass filtering structure of described filter structure according to any one of claim 1 to 16.
18. 1 kinds of antenna systems, comprise radome, it is characterized in that, described radome is radome according to claim 17.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808256A (en) * | 2017-04-28 | 2018-11-13 | 深圳光启尖端技术有限责任公司 | Micro-structure, microstructured layers, Meta Materials and antenna house |
| CN109994838A (en) * | 2017-12-29 | 2019-07-09 | 深圳光启尖端技术有限责任公司 | A kind of controllable absorbing meta-material |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808256A (en) * | 2017-04-28 | 2018-11-13 | 深圳光启尖端技术有限责任公司 | Micro-structure, microstructured layers, Meta Materials and antenna house |
| CN109994838A (en) * | 2017-12-29 | 2019-07-09 | 深圳光启尖端技术有限责任公司 | A kind of controllable absorbing meta-material |
| CN109994838B (en) * | 2017-12-29 | 2024-06-11 | 深圳光启尖端技术有限责任公司 | Controllable wave-absorbing metamaterial |
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