CN202997028U - Harmonic oscillator and cavity filter thereof, and electromagnetic wave equipment - Google Patents
Harmonic oscillator and cavity filter thereof, and electromagnetic wave equipment Download PDFInfo
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- CN202997028U CN202997028U CN 201220616544 CN201220616544U CN202997028U CN 202997028 U CN202997028 U CN 202997028U CN 201220616544 CN201220616544 CN 201220616544 CN 201220616544 U CN201220616544 U CN 201220616544U CN 202997028 U CN202997028 U CN 202997028U
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Abstract
The utility model relates to a harmonic oscillator, comprising at least one dielectric slice and response units adhered on the at least one dielectric slice; wherein the response unit has a structure which is formed by a conductive material and has a geometric pattern. The utility model also relates to a cavity filter having the harmonic oscillator and electromagnetic wave equipment having the cavity filter. The harmonic oscillator of the utility model has a positive equivalent refractive index, thus an equivalent dielectric constant and an equivalent permeability of the harmonic oscillator can be effectively raised, thereby reducing a resonant frequency of the resonant cavity, therefore, the volume of the resonant cavity can be reduced obviously while the same resonant frequency is realized, furthermore a filter such as the cavity filter or a diplexer having the harmonic oscillator and the electromagnetic wave equipment thereof can have a good miniaturization advantage.
Description
Technical field
The utility model relates to the radio-frequency devices field, more particularly, relates to a kind of harmonic oscillator and cavity body filter thereof and electromagnetic wave device.
Background technology
Harmonic oscillator claims again dielectric resonator, has that dielectric constant is high, electromagnetic consumable is a bit low, is widely used in various microwave radio devices the duplexer that consists of such as cavity body filter, cavity body filter etc.Usually harmonic oscillator is cylindrical, is formed by microwave-medium ceramics one sintering.
The requirement that dielectric constant is high, electromagnetic consumable is low although microwave-medium ceramics also has, thereby tolerance power advantages of higher meets harmonic oscillator, but along with improving constantly of the development of science and technology, product integrated level, people further improve the miniaturization demand of filter, duplexer.In prior art, volume and the resonance frequency of cavity body filter, duplexer are inversely proportional to, if directly its resonant cavity cavity is reduced volume, its corresponding resonance frequency can increase, thereby can not satisfy the filter function of filter.How can realize miniaturization, not affect again the use function of normal cavity body filter and duplexer, be the common urgent problem of present research staff.
The utility model content
The purpose of this utility model is, for the defects of prior art, provides a kind of and realizes that miniaturization does not affect harmonic oscillator and cavity body filter and the electromagnetic wave device of resonance frequency and other performances simultaneously.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of harmonic oscillator, comprise at least one dieelctric sheet and be attached to the lip-deep response unit of at least one described dieelctric sheet; Described response unit is the structure with geometrical pattern that electric conducting material is made.
In harmonic oscillator described in the utility model, described response unit presents positive equivalent refractive index at elect magnetic field corresponding to the operating frequency of described harmonic oscillator.
In harmonic oscillator described in the utility model, the dielectric constant of the described response unit of elect magnetic field corresponding to the operating frequency of described harmonic oscillator and magnetic permeability be on the occasion of.
In harmonic oscillator described in the utility model, being attached to the lip-deep response unit of at least one described dieelctric sheet has a plurality of and is not electrically connected to mutually.
In harmonic oscillator described in the utility model, described response unit is arranged on the edge on described dieelctric sheet surface.
In harmonic oscillator described in the utility model, the equivalent refractive index of the different response units on each described dieelctric sheet increases progressively and increases progressively with the distance of itself and dieelctric sheet centre of surface point.
In harmonic oscillator described in the utility model, the size of the different response units on each described dieelctric sheet increases progressively and increases progressively with the distance of itself and dieelctric sheet centre of surface point.
In harmonic oscillator described in the utility model, described harmonic oscillator comprises a plurality of described dieelctric sheets of stack successively, is attached with described response unit on the surface of one of them described dieelctric sheet.
In harmonic oscillator described in the utility model, described response unit is attached on the one or more dieelctric sheets that are positioned at the stacking harmonic oscillator two ends that form.
In harmonic oscillator described in the utility model, the operating frequency of described harmonic oscillator is lower than the resonance frequency of described response unit or higher than the plasma frequency of described response unit.
In harmonic oscillator described in the utility model, the size of described response unit is less than the corresponding electromagnetic wavelength of the operating frequency of described harmonic oscillator.
In harmonic oscillator described in the utility model, the size of described response unit is less than 1/2nd of the corresponding electromagnetic wavelength of operating frequency of described harmonic oscillator.
In harmonic oscillator described in the utility model, the size of described response unit is less than 1/5th of the corresponding electromagnetic wavelength of operating frequency of described harmonic oscillator.
In harmonic oscillator described in the utility model, the size of described response unit is less than 1/10th of the corresponding electromagnetic wavelength of operating frequency of described harmonic oscillator.
In harmonic oscillator described in the utility model, described dieelctric sheet by dielectric constant greater than 1, loss tangent makes less than 0.1 material.
In harmonic oscillator described in the utility model, described dieelctric sheet by dielectric constant greater than 30, loss tangent makes less than 0.01 material.
In harmonic oscillator described in the utility model, described dieelctric sheet is made by microwave-medium ceramics.
In harmonic oscillator described in the utility model, described electric conducting material is metal material.
In harmonic oscillator described in the utility model, described electric conducting material is gold, silver, copper, and perhaps described electric conducting material is the alloy that contains gold, silver or copper.
In harmonic oscillator described in the utility model, described electric conducting material is nonmetallic materials.
In harmonic oscillator described in the utility model, described electric conducting material is indium tin oxide, Al-Doped ZnO or electrically conductive graphite.
In harmonic oscillator described in the utility model, described response unit is anisotropic structure.
In harmonic oscillator described in the utility model, described response unit has a plurality of, and the mode that circularizes array or rectangular array is arranged on described dieelctric sheet.
In harmonic oscillator described in the utility model, described response unit is netted, comprises a sheet metal, and on described sheet metal, hollow out has a plurality of holes.
In harmonic oscillator described in the utility model, described response unit is fan-shaped sheet metal, and a plurality of described fan-shaped sheet metal becomes circumference to arrange take any as the center of circle.
In harmonic oscillator described in the utility model, described response unit is square shape sheet, and two square shape sheet response units interval side by side arrange and consist of a response unit pair, a plurality of described response units to take any as the center of circle one-tenth circumference arrange.
The utility model also relates to a kind of cavity body filter, comprises at least one resonant cavity and the harmonic oscillator that is positioned at least one described resonant cavity, and described harmonic oscillator comprises at least one dieelctric sheet and is attached to the lip-deep response unit of at least one described dieelctric sheet; Described response unit is the structure with geometrical pattern that electric conducting material is made.
In cavity body filter described in the utility model, the first mode of described cavity body filter is the TE pattern, and described response unit is arranged on the plane of the electric field that is parallel to described TE pattern.
In cavity body filter described in the utility model, the response unit of described harmonic oscillator is positioned on the subregion on accompanying dieelctric sheet surface, the magnetic field on each aspect of described subregion along perpendicular to the component on described dieelctric sheet surface less than preset value.
In cavity body filter described in the utility model, the subregion on described dieelctric sheet surface is positioned on the edge on described dieelctric sheet surface.
In cavity body filter described in the utility model, described cavity body filter is band pass filter, band stop filter, high pass filter, low pass filter or multiband filter.
The utility model also relates to a kind of electromagnetic wave device, comprise signal emission module, signal receiving module and cavity body filter, the input of described cavity body filter is connected with described signal emission module, output is connected with described signal receiving module, described cavity body filter comprises resonant cavity and the harmonic oscillator that is positioned at described resonant cavity, and described harmonic oscillator comprises at least one dieelctric sheet and is attached to the lip-deep response unit of at least one described dieelctric sheet; Described response unit is the structure with geometrical pattern that electric conducting material is made.
In electromagnetic wave device described in the utility model, described electromagnetic wave device is the base station.
In electromagnetic wave device described in the utility model, described base station comprises duplexer, and described duplexer comprises post a letter band pass filter and collection of letters band pass filter, and in described post a letter band pass filter and collection of letters band pass filter, at least one is described cavity body filter.
In electromagnetic wave device described in the utility model, described electromagnetic wave device is aircraft or radar or satellite.
Adopt harmonic oscillator of the present utility model and cavity body filter thereof and electromagnetic wave device, have following beneficial effect: harmonic oscillator of the present utility model is owing to having positive equivalent refractive index, can effectively improve effective dielectric constant and the equivalent permeability of harmonic oscillator, thereby reduce the resonance frequency of resonant cavity, therefore the volume of resonant cavity can obviously reduce when realizing identical resonance frequency, and then makes the filtering device such as cavity body filter with this harmonic oscillator or duplexer and electromagnetic wave device thereof have good miniaturization advantage.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the structural representation of the harmonic oscillator of the utility model the first embodiment;
Fig. 2 is the structural representation of a response unit;
Fig. 3 is the equivalent refractive index-frequency relation curve of response unit shown in Figure 2;
Fig. 4 is the structural representation of another response unit;
Fig. 5 is the equivalent refractive index-frequency relation curve of response unit shown in Figure 4;
Fig. 6 is the possible planform of the response unit of harmonic oscillator of the present utility model;
Fig. 7 is the structural representation of the harmonic oscillator of the second embodiment;
Fig. 8 is the structural representation with resonant cavity of harmonic oscillator shown in Figure 7;
Fig. 9 is the distribution map of the electric field of TM pattern;
Figure 10 is the Distribution of Magnetic Field figure of TM pattern;
Figure 11 is the structural representation of the harmonic oscillator of the 3rd embodiment;
Figure 12 is the structural representation of the harmonic oscillator of the 4th embodiment;
Figure 13 is the structural representation of electromagnetic wave device of the present utility model when being the base station.
Embodiment
The utility model relates to a kind of harmonic oscillator, as shown in Figure 1, comprises 3, medium and adheres to the lip-deep response unit 4 of dieelctric sheet 3.Each harmonic oscillator comprises a dieelctric sheet 3, also can comprise a plurality of dieelctric sheets 3, and a plurality of dieelctric sheets 3 are superimposed together and connect as one by modes such as bonding, securing member connections as shown in Figure 1.Dieelctric sheet 3 herein, espespecially be applicable to can be used as in cavity body filter the material of dielectric resonance, these materials have the advantages that dielectric constant is high, loss tangent is low, under the operating frequency of harmonic oscillator, its dielectric constant is usually above 30, and loss tangent is lower than 0.01.Satisfactory common used material is microwave-medium ceramics, for example BaTi
4O
9, Ba
2Ti
9O
20, MgTiO
3-CaTiO
3, BaO-Ln
2O
3-TiO
2System, Bi
2O
3-ZnO-Nb
2O
5System etc.Certainly, except the satisfactory other materials of pottery also can be used as dieelctric sheet of the present utility model, as long as dielectric constant greater than 1, loss tangent is less than 0.1 material, such as polytetrafluoroethylene, epoxy resin etc.
The shape of dieelctric sheet 3 can have any shape, such as square column type, square shape sheet, annular, cylindrical shape, cylindrical, irregularly shaped etc.According to the difference of the shape of applied resonant cavity, the shape of dieelctric sheet 3 is also different, so long as the shape of dielectric resonance that has in prior art, all can be used as the shape of dieelctric sheet 3 of the present utility model.Preferably, dieelctric sheet is the symmetrical structure of rule, square column type or cylindrical for example, and modal is cylindrical.
The operating frequency of harmonic oscillator above, refer to that this harmonic oscillator is applied in the resonant cavity of a cavity body filter or duplexer, corresponding cavity body filter or the needed operating frequency of duplexer, be for example the resonance frequency of the corresponding electromagnetic field of first mode (holotype) separately; This resonance frequency is usually suitable with the resonance frequency of the dieelctric sheet 3 of harmonic oscillator.
Electric conducting material herein can be the alloy of metal or metal, such as silver, copper, copper or contain wherein one or both alloy etc. of gold, silver, copper, can be also can conduct electricity nonmetal, such as electrically conductive graphite, Al-Doped ZnO, indium tin oxide etc.
Make response unit 4 have separately independently electromagnetic response at elect magnetic field, its size should be in the sub-wavelength scope, and namely size is less than the corresponding electromagnetic wavelength of the operating frequency of harmonic oscillator, half is less than 1/2nd, the smaller the better, preferably less than 1/5th, the best is less than 1/10th.Herein, the size of response unit 4 refers to consist of on the curve of its outline, appoints the length of getting that line segment the longest in 2 line segments that are linked to be.
The first utility model point of the present utility model is, satisfies the response unit 4 of above-mentioned dimensional requirement, also must satisfy at the corresponding elect magnetic field of the operating frequency of harmonic oscillator to present positive equivalent refractive index.In other words, at the suitable elect magnetic field of the resonance frequency of frequency and dieelctric sheet 3 corresponding dielectric materials, response unit 4 presents positive equivalent refractive index.
The equivalent refractive index of each response unit 4 is one and follows the relevant curve of frequency, an any given response unit, and for example shown in Figure 2, unit of each mark is millimeter (mm), electric conducting material is Copper Foil.Limit dielectric constant and the loss tangent of its dieelctric sheet that adheres to, get for example 2mm of certain thickness, with this response unit and partly emulation in simulation software of dieelctric sheet thereof, obtain the relation curve of its equivalent refractive index and frequency, as shown in Figure 3.As shown in Figure 3, this response unit its equivalent refractive index in the full frequency band scope be on the occasion of, therefore can use in harmonic oscillator of the present utility model.More specifically to the algorithm of the equivalent refractive index of response unit, can referring to Ruopeng Liu, Tie Jun Cui, Da Huang, Bo Zhao and David R.Smith writes jointly and the paper " Description and explanation ofelectromagnetic behaviors in artificial metamaterials based on effective mediumtheory " delivered in 2007.
Fig. 4 has provided another response unit, is opening resonance loop structure, and this structure is to realize the typical structure of negative magnetoconductivity, negative refraction.The equivalent refractive index of this split ring resonator and the response curve of frequency are as shown in Figure 5.Wherein, equivalent refractive index is resonance frequency f by the frequency that is 0 when transferring negative value to
0, equivalent refractive index by negative value transfer on the occasion of the time be that 0 frequency is plasma frequency f
1Satisfy equivalent refractive index for just, require the operating frequency of harmonic oscillator less than resonance frequency f
0Or greater than plasma frequency f
1
Therefore, there is the response unit of negative value in whole frequency range for equivalent refractive index, make response unit present positive equivalent refractive index at the corresponding elect magnetic field of the operating frequency of harmonic oscillator, the operating frequency of this harmonic oscillator should be lower than the resonance frequency of described response unit or higher than the plasma frequency of described response unit.
When the equivalent refractive index of response unit has a plurality of resonance frequencys and plasma frequency about the curve of frequency, in the resonance frequency or plasma frequency or the frequency range between last plasma frequency and this plasma frequency higher order resonances frequency subsequently greater than maximum of the operating frequency of harmonic oscillator less than minimum.
Positive equivalent refractive index mean dielectric constant and magnetic permeability be on the occasion of, as long as in dielectric constant and magnetic permeability, one of them value is negative value, be negative equivalent refractive index.The response unit of positive equivalent refractive index is applied on harmonic oscillator, and equivalence is for having improved the average dielectric constant of harmonic oscillator.The known dielectric constant is higher, and the resonance frequency of the applied resonant cavity of harmonic oscillator is lower, and the cavity volume when realizing identical resonance frequency is less, thereby realizes further miniaturization.
Certainly, it is shape shown in Figure 2 that response unit 4 in harmonic oscillator of the present utility model does not limit, it can be arbitrary shape, for example solid sheet, hollow ring-type or netted, snowflake shape, fork-shaped, polygon, circle or other are irregularly shaped arbitrarily.Preferred response unit 4 has a Rotational Symmetry center, overlaps such as circle, square, cross etc. after making this response unit 4 with this any 90-degree rotation in Rotational Symmetry center with former response unit.
Fig. 6 shows the possible several flat shapes of response unit 4, and first is annular; Second is netted, and it is that on a sheet metal, hollow out has a plurality of holes to form, and hole can be the rectangle in figure, can be also circular or other are irregularly shaped, these holes can rule as shown in FIG. be arranged, but also random arrangement, and the response unit of this shape can reduce loss; The 3rd is the annular that any irregular curve consists of; The 4th is the triangle metal sheet; The 5th is the ELC structure, can be used for realizing negative magnetoconductivity; The 6th is the distortion of " work " font, two large " work " character form structure perpendicular quadratures, and connect little " work " font at each end, obviously, the end of " work " font that each is little also can continue to connect less " work " font.In addition, response unit can also be fan-shaped sheet metal, and for by the circular arc of two sections concyclic hearts be connected to two sections sheet metals that straight line surrounds at two circular arc two ends, a plurality of so fan-shaped sheet metals become circumference to arrange take any as the center of circle.Embodiment this paper of other response units repeats no more.
Therefore, as shown in Figure 8, the utility model is also protected a kind of cavity body filter, comprises at least one resonant cavity 2 and is positioned at least the harmonic oscillator of one of them resonant cavity 2.The cavity body filter here can be band pass filter, band stop filter, high pass filter, low pass filter or multiband filter.The below only draws the harmonic oscillator in one of them resonant cavity and this resonant cavity for simplified schematic.Those skilled in the art are easy to expect, cavity body filter may have four resonant cavitys, six resonant cavitys, eight resonant cavitys or more resonant cavity.Can place harmonic oscillator of the present utility model in a resonant cavity therein, adopt traditional sucrose harmonic oscillator or metal harmonic oscillator in other chambeies; Also all adopt harmonic oscillator of the present utility model in several resonant cavitys or all resonant cavitys therein.
Below in conjunction with concrete experimental data explanation, adopt harmonic oscillator of the present utility model, can effectively reduce resonance frequency.
Utilize simulation software to carry out emulation to above-mentioned cavity body filter, the first mode that records this filter is the TE pattern, and the resonance frequency of this pattern (being also the resonance frequency of cavity body filter) is 2.265GHz, and the Q value is 10498.And in above-mentioned cavity body filter, response unit 4 is not set, and other conditions all do not change, and also are traditional dielectric cavity fluid filter, and the resonance frequency that emulation draws this filter is 2.385GHz, and the Q value is 10990.Harmonic oscillator of the present utility model is the nearly 120MHz of frequency reducing directly, and the impact of Q value is little.This shows, adopt harmonic oscillator of the present utility model, can effectively reduce the resonance frequency of cavity body filter.In the situation that realize identical resonance frequency, the volume of resonant cavity can be done littlely.
In above-mentioned TE pattern, as shown in Figure 9, the direction of arrow and size show direction and the size of electric field.As shown in Figure 9, electric field is around the central shaft horizontal circle (central axis direction of harmonic oscillator is vertical direction) of harmonic oscillator, therefore, preferred response unit be arranged on the electric field line that is parallel to described TE pattern around the plane on, make effective dielectric constant reach maximum, reduce substantially the resonance frequency of cavity body filter.The magnetic field of TE pattern as shown in figure 10, arrow represents the direction in magnetic field.The central shaft of magnetic field line self-resonance outwards around.
Therefore in the utility model, preferred response unit is arranged on the subregion on the accompanying dieelctric sheet surface that is parallel to the TE mode electric field, the edge, magnetic field on each aspect of this subregion perpendicular to the component on this dieelctric sheet surface less than preset value.In other words, it is surperficial that a dieelctric sheet that is provided with response unit is passed in magnetic field, each point on dieelctric sheet surface is to there being specific magnetic field intensity, each magnetic field intensity is different perpendicular to the component on the direction on this dieelctric sheet surface and a maximum wherein arranged, above-mentioned preset value is a value less than described peaked 50%, and preset value is the smaller the better.All set less than the corresponding point of the component of described preset value have consisted of the subregion on above-mentioned surface.Response unit is positioned at this zone, both can effectively reduce resonance frequency, also can avoid loss to sacrifice large and cause the Q value too low.
As shown in Figure 10, this subregion is basically on the edge on dieelctric sheet 3 surfaces, and described edge dwindles the regional extent between curve after 50% on year-on-year basis take the central point on dieelctric sheet surface as the convergent-divergent center for these dieelctric sheet 3 surface profiles and this profile.As shown in Figure 10, optimum is, response unit 4 is arranged on described dieelctric sheet surface profile and this profile and dwindles on year-on-year basis take the central point on dieelctric sheet surface as the convergent-divergent center on surf zone between curve after 30%.
With reference to Fig. 7, harmonic oscillator and cavity body filter shown in Figure 8, other conditions are not all changed, the circumference of response unit 4 take radius as 7mm on dieelctric sheet 3 equidistantly arranged, and the resonance frequency that records cavity body filter in this new embodiment is 2.194GHz, and the Q value is 7942.And the resonance frequency in embodiment illustrated in fig. 8 is known as 2.265GHz, and the Q value is 10498.As seen, targetedly response unit is arranged on the edge on dieelctric sheet surface, can effectively improves the Q value.
For the response unit 4 of shape geometric similarity, its equivalent refractive index is directly proportional to their size, and size is larger, and equivalent refractive index is also larger.Therefore, in above-mentioned harmonic oscillator, when the equal geometric similarity of the shape of response unit or when close, along with the increase of response unit 4 to the distance of dieelctric sheet 3 centre of surface points, the size of response unit and increase or do not reduce at least thereupon.
For example, in Fig. 7, harmonic oscillator shown in Figure 8 and cavity body filter, other conditions are constant, the response unit that two circle sizes reduce successively is set in the response unit inside of above-mentioned circle distribution again, and as shown in figure 11, emulation records, the resonance frequency of this filter is 2.183GHz, and the Q value is 8278.
Two circles adopt as shown in figure 12 successively when inside, and recording resonance frequency is 2.122GHz, and the Q value reduces to 3417.Contrast can get, and adopts larger response unit, although frequency reducing is more obvious, difference is little, and the Q value sharply reduces.Therefore, preferably adopt response unit the closer to the less distribution form of center size.
In addition, in the utility model, preferred described response unit 4 is anisotropic structure.Anisotropy herein is isotropic opposite.Isotropism, refer to a stereochemical structure, have three mutually perpendicular planes of symmetry in twos, this stereochemical structure is so that wherein the arbitrary plane of symmetry is symmetrical, and this stereochemical structure is identical and partially overlap with adjacent one after the boundary line 90-degree rotation of any two planes of symmetry by eight parts of these three plane of symmetry cuttings simultaneously.The structure that does not meet this requirement is anisotropic structure very, and for example very thin thickness, the structure that is approximately the plane must be anisotropic structure.Because electric field is horizontal circle, therefore preferred response unit 4 is flat anisotropic structure.
The utility model also relates to a kind of electromagnetic wave device with above-mentioned cavity body filter, and this electromagnetic wave device can be the equipment that the various needs such as aircraft, base station, radar, satellite are used cavity body filter.These electromagnetic wave devices can receive and transmitted signal, and carry out filtering after receiving or before sending, so that institute's signal of receiving or sending satisfies the demands, so electromagnetic wave device at least also comprises the signal emission module that is connected with the input of cavity body filter, the signal receiving module that is connected with the output of cavity body filter.
For example, as shown in figure 13, electromagnetic wave device is the base station, and the base station comprises the duplexer as filtering device, and duplexer comprises post a letter band pass filter and collection of letters band pass filter.The input of band pass filter of posting a letter connects sender, and output connects antenna for base station; The input of collection of letters band pass filter connects antenna for base station, and output connects receiver.
For the band pass filter of posting a letter, its signal emission module is sender, and signal receiving module is antenna for base station.And for collection of letters band pass filter, its signal emission module is antenna for base station, and signal receiving module is receiver.Post a letter and have a cavity body filter for having harmonic oscillator of the present utility model in band pass filter and collection of letters band pass filter at least.Adopt such cavity body filter, can greatly reduce the volume of filter, be conducive to the miniaturization of base station.
The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (33)
1. a harmonic oscillator, is characterized in that, described harmonic oscillator comprises:
At least one dieelctric sheet;
Be attached to the lip-deep response unit of at least one described dieelctric sheet;
Wherein, described response unit is the structure with geometrical pattern that electric conducting material is made.
2. harmonic oscillator according to claim 1, is characterized in that, described response unit presents the positive equivalent refractive index of equivalence at elect magnetic field corresponding to the operating frequency of described harmonic oscillator.
3. harmonic oscillator according to claim 1, is characterized in that, being attached to the lip-deep response unit of at least one described dieelctric sheet has a plurality of and be not electrically connected to mutually.
4. harmonic oscillator according to claim 1, is characterized in that, described response unit is arranged on the edge on described dieelctric sheet surface.
5. harmonic oscillator according to claim 1, is characterized in that, the equivalent refractive index of the different response units on each described dieelctric sheet increases progressively and increases progressively with the distance of itself and dieelctric sheet centre of surface point.
6. harmonic oscillator according to claim 5, is characterized in that, the size of the different response units on each described dieelctric sheet increases progressively and increases progressively with the distance of itself and dieelctric sheet centre of surface point.
7. harmonic oscillator according to claim 1, is characterized in that, described harmonic oscillator comprises a plurality of described dieelctric sheets of stack successively, is attached with described response unit on the surface of one of them described dieelctric sheet.
8. harmonic oscillator according to claim 7, is characterized in that, described response unit is attached on the one or more dieelctric sheets that are positioned at the stacking harmonic oscillator two ends that form.
9. harmonic oscillator according to claim 1, is characterized in that, the operating frequency of described harmonic oscillator is higher than the plasma frequency of described response unit or lower than the higher order resonances frequency after described plasma frequency.
10. harmonic oscillator according to claim 1, is characterized in that, the size of described response unit is less than the corresponding electromagnetic wavelength of the operating frequency of described harmonic oscillator.
11. harmonic oscillator according to claim 1 is characterized in that, the size of described response unit is less than 1/2nd of the corresponding electromagnetic wavelength of operating frequency of described harmonic oscillator.
12. harmonic oscillator according to claim 1 is characterized in that, the size of described response unit is less than 1/5th of the corresponding electromagnetic wavelength of operating frequency of described harmonic oscillator.
13. harmonic oscillator according to claim 1 is characterized in that, described dieelctric sheet by dielectric constant greater than 1, loss tangent makes less than 0.1 material.
14. harmonic oscillator according to claim 1 is characterized in that, described dieelctric sheet by dielectric constant greater than 30, loss tangent makes less than 0.01 material.
15. harmonic oscillator according to claim 1 is characterized in that, described dieelctric sheet is made by microwave-medium ceramics.
16. harmonic oscillator according to claim 1 is characterized in that, described electric conducting material is metal material.
17. harmonic oscillator according to claim 16 is characterized in that, described electric conducting material is gold, silver, copper, and perhaps described electric conducting material is the alloy that contains gold, silver or copper.
18. harmonic oscillator according to claim 1 is characterized in that, described electric conducting material is nonmetallic materials.
19. harmonic oscillator according to claim 18 is characterized in that, described electric conducting material is indium tin oxide, Al-Doped ZnO or electrically conductive graphite.
20. harmonic oscillator according to claim 1 is characterized in that, described response unit is anisotropic structure.
21. harmonic oscillator according to claim 1 is characterized in that, described response unit has a plurality of, and the mode that circularizes array or rectangular array is arranged on described dieelctric sheet.
22. harmonic oscillator according to claim 1 is characterized in that, described response unit is netted, comprises a sheet metal, and on described sheet metal, hollow out has a plurality of holes.
23. harmonic oscillator according to claim 1 is characterized in that, described response unit is fan-shaped sheet metal, and a plurality of described fan-shaped sheet metal becomes circumference to arrange take any as the center of circle.
24. harmonic oscillator according to claim 1 is characterized in that, described response unit is square shape sheet, and two square shape sheet response units interval side by side arrange and consist of a response unit pair, a plurality of described response units to take any as the center of circle one-tenth circumference arrange.
25. a cavity body filter is characterized in that, comprises at least one resonant cavity and the harmonic oscillator that is positioned at least one described resonant cavity, described harmonic oscillator is the described harmonic oscillator of claim 1 to 24 any one.
26. cavity body filter according to claim 25 is characterized in that, the first mode of described cavity body filter is the TE pattern, and described response unit is arranged on the plane of the electric field that is parallel to described TE pattern.
27. cavity body filter according to claim 26, it is characterized in that, the response unit of described harmonic oscillator is positioned on the subregion on accompanying dieelctric sheet surface, the magnetic field on each aspect of described subregion along perpendicular to the component on described dieelctric sheet surface less than preset value.
28. cavity body filter according to claim 27 is characterized in that, the subregion on described dieelctric sheet surface is positioned on the edge on described dieelctric sheet surface.
29. cavity body filter according to claim 25 is characterized in that, described cavity body filter is band pass filter, band stop filter, high pass filter, low pass filter or multiband filter.
30. electromagnetic wave device, it is characterized in that, comprise signal emission module, signal receiving module and cavity body filter as described in claim 25 to 29 any one, the input of described cavity body filter is connected with described signal emission module, and output is connected with described signal receiving module.
31. electromagnetic wave device according to claim 30 is characterized in that, described electromagnetic wave device is the base station.
32. electromagnetic wave device according to claim 31, it is characterized in that, described base station comprises duplexer, and described duplexer comprises post a letter band pass filter and collection of letters band pass filter, and in described post a letter band pass filter and collection of letters band pass filter, at least one is described cavity body filter.
33. electromagnetic wave device according to claim 30 is characterized in that, described electromagnetic wave device is aircraft or radar or satellite.
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|---|---|---|---|
| CN 201220616544 CN202997028U (en) | 2012-11-20 | 2012-11-20 | Harmonic oscillator and cavity filter thereof, and electromagnetic wave equipment |
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| CN 201220616544 CN202997028U (en) | 2012-11-20 | 2012-11-20 | Harmonic oscillator and cavity filter thereof, and electromagnetic wave equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022625A (en) * | 2012-11-20 | 2013-04-03 | 深圳光启创新技术有限公司 | Harmonic oscillator as well as cavity filter and electromagnetic wave equipment thereof |
| WO2014079280A1 (en) * | 2012-11-20 | 2014-05-30 | 深圳光启创新技术有限公司 | Harmonic oscillator and cavity filter and electromagnetic wave device thereof |
| CN103840242A (en) * | 2012-11-20 | 2014-06-04 | 深圳光启创新技术有限公司 | Harmonic oscillator, cavity filter with same and electromagnetic wave equipment |
-
2012
- 2012-11-20 CN CN 201220616544 patent/CN202997028U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022625A (en) * | 2012-11-20 | 2013-04-03 | 深圳光启创新技术有限公司 | Harmonic oscillator as well as cavity filter and electromagnetic wave equipment thereof |
| WO2014079280A1 (en) * | 2012-11-20 | 2014-05-30 | 深圳光启创新技术有限公司 | Harmonic oscillator and cavity filter and electromagnetic wave device thereof |
| CN103840242A (en) * | 2012-11-20 | 2014-06-04 | 深圳光启创新技术有限公司 | Harmonic oscillator, cavity filter with same and electromagnetic wave equipment |
| US9711832B2 (en) | 2012-11-20 | 2017-07-18 | Kuang-Chi Innovative Technology Ltd. | Harmonic oscillator and cavity filter and electromagnetic wave device thereof |
| CN103840242B (en) * | 2012-11-20 | 2018-04-17 | 深圳光启创新技术有限公司 | A kind of harmonic oscillator and its cavity body filter and electromagnetic wave device |
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