CN203119075U - Resonant cavity, filter device and electromagnetic wave equipment - Google Patents
Resonant cavity, filter device and electromagnetic wave equipment Download PDFInfo
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- CN203119075U CN203119075U CN 201220735438 CN201220735438U CN203119075U CN 203119075 U CN203119075 U CN 203119075U CN 201220735438 CN201220735438 CN 201220735438 CN 201220735438 U CN201220735438 U CN 201220735438U CN 203119075 U CN203119075 U CN 203119075U
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- resonant cavity
- cavity according
- harmonic oscillator
- filtering device
- electromagnetic wave
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Abstract
The utility model relates to a resonant cavity. The resonant cavity comprises a cavity body and a harmonic oscillator, wherein the harmonic oscillator is arranged in the cavity body. Moisture-proof glue is attached to an outer surface of the cavity body of the resonant cavity. The utility model further relates to a filter device having the resonant cavity and electromagnetic wave equipment. According to the utility model, the moisture-proof glue is coated on the outer surface of the resonant cavity, especially on gaps between a tuning rod and fixing holes for fixing the tuning rod, and because the moisture-proof glue has the advantages of moisture resistance, salt fog resistance and corrosive resistance, the service life of the resonant cavity can be prolonged, and the service life of the filter device and the electromagnetic wave equipment having the filter device can also be prolonged.
Description
Technical field
The utility model relates to radio frequency components and parts and equipment thereof, more particularly, relates to a kind of resonant cavity, filtering device and electromagnetic wave equipment.
Background technology
The resonant cavity of present filter all is to be made by metal material especially aluminium, though have characteristics such as good protection against the tide, anti-salt fog, though but the screw of the gap between tuning plug and the screwed hole or connection chamber lid and cavity and the gap between the screw hole can make in the resonant cavity and make moist the performance of reduction resonant cavity.
(application number is 201210061804.3 to China's utility model patent, the applying date is 2012.03.09, date of publication is 2012.08.01) related a kind of cavity body filter, connector and corresponding manufacturing process, comprise cavity, cover plate and be arranged on cavity or cover plate on connector, connector one end connects the internal components of filter, the other end connects the PERCOM peripheral communication device, connector comprises the inner wire of coaxial setting, metal shell and be arranged at metal shell and inner wire between dielectric, the outer peripheral face of metal shell is provided with non-metallic layer, by the outer peripheral face at the metal shell of connector the protection against the tide that non-metallic layer strengthens connector and cavity body filter is set, anti-salt fog, mildew-resistant ability and reliability.This utility model patent only relates to the abilities such as protection against the tide of connector, does not relate to the moistureproof ability of cavity connection hole.
The utility model content
The purpose of this utility model is, at the above-mentioned defective of prior art, provides a kind of protection against the tide, anti-salt fog, anticorrosion, the resonant cavity that increases the service life, filtering device and electromagnetic wave equipment.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of resonant cavity is provided, and described resonant cavity comprises: cavity, be arranged on the harmonic oscillator in the described cavity, described resonant cavity chamber outer surface is with moistureproof glue.
In resonant cavity described in the utility model, be coated with completely or partly apply moistureproof glue on the described chamber outer surface.
In resonant cavity described in the utility model, described cavity comprises upper chamber cover and lower chambers, and described upper chamber cover and lower chambers surround out enclosure space, and described harmonic oscillator is positioned at described enclosure space.
In resonant cavity described in the utility model, the contacting to sew on of described upper chamber cover and lower chambers is attached with moistureproof glue.
In resonant cavity described in the utility model, described resonant cavity also comprises and passes described upper chamber cover and enter tuning plug in the described enclosure space, offers on the described upper chamber cover and is convenient to first fixing hole that described tuning plug passes.
In resonant cavity described in the utility model, described moistureproof glue covers the place, slit between described tuning plug and first fixing hole.
In resonant cavity described in the utility model, described resonant cavity also comprises the securing member that passes described upper chamber cover and fixedly connected with described lower chambers, offers on the described upper chamber cover to be convenient to second fixing hole that described securing member passes.
In resonant cavity described in the utility model, described moistureproof glue covers the place, slit between described securing member and second fixing hole.
In resonant cavity described in the utility model, described harmonic oscillator is the metal harmonic oscillator.
In resonant cavity described in the utility model, described harmonic oscillator is dielectric resonance.
In resonant cavity described in the utility model, described dielectric resonance is TE mould harmonic oscillator or TM mould harmonic oscillator.
In resonant cavity described in the utility model, described dielectric resonance by dielectric constant greater than 1, loss tangent makes less than 0.1 material.
In resonant cavity described in the utility model, described dielectric resonance by dielectric constant greater than 10, loss angle tangent makes less than 0.01 material.
In resonant cavity described in the utility model, the sub-material of described dielectric resonance by dielectric constant greater than 30, loss angle tangent makes less than 0.001 material.
In resonant cavity described in the utility model, the material of described dielectric resonance is pottery.
In resonant cavity described in the utility model, described harmonic oscillator is super material resonances.
In resonant cavity described in the utility model, described super material resonances is super material resonances of TE mould.
In resonant cavity described in the utility model, super material resonances of described TE mould comprises a plurality of all-in-one-piece dieelctric sheets that pile up, and the surface of at least one described dieelctric sheet is provided with by what electric conducting material was made has a geometric artificial micro-structural.
In resonant cavity described in the utility model, super material resonances of described TE mould also comprises the tack coat that connects adjacent two dieelctric sheets, and described tack coat covers on the dieelctric sheet surface on the surf zone except described artificial micro-structural.
In resonant cavity described in the utility model, the thickness of described tack coat equates with the thickness of described artificial micro-structural.
In resonant cavity described in the utility model, described super material resonances is super material resonances of TM mould.
In resonant cavity described in the utility model, super material resonances of described TM mould is the sleeve of hollow, and the inner surface of described sleeve or outer surface are the face of cylinder, is attached with on the described face of cylinder by what electric conducting material was made to have a geometric artificial micro-structural.
In resonant cavity described in the utility model, super material resonances of described TM mould comprises common central shaft and sheathed at least two sleeves from inside to outside successively, the outer surface of one of them sleeve or inner surface are cylindrical, have on the described face of cylinder by what electric conducting material was made and have a geometric artificial micro-structural.
The utility model also relates to a kind of filtering device, comprises one or more resonant cavitys, and at least one resonant cavity comprises cavity, is arranged on the harmonic oscillator in the described cavity, and described resonant cavity chamber outer surface is with moistureproof glue.
In filtering device described in the utility model, described filtering device is filter or duplexer.
In filtering device described in the utility model, described filtering device 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 equipment, comprise signal emission module, signal receiving module and filtering device, the input of described filtering device is connected with described signal emission module, output is connected with signal receiving module, described filtering device comprises one or more resonant cavitys, at least one resonant cavity comprises cavity, is arranged on the harmonic oscillator in the described cavity, and described resonant cavity chamber outer surface is with moistureproof glue.
In electromagnetic wave equipment described in the utility model, described electromagnetic wave equipment is the base station.
In electromagnetic wave equipment 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 at least one is described filtering device in described post a letter band pass filter and the collection of letters band pass filter.
In electromagnetic wave equipment described in the utility model, described electromagnetic wave equipment is aircraft or radar.
Implement the utility model, have following beneficial effect: moistureproof glue is coated on the resonant cavity chamber outer surface, especially tuning plug is located with the slit that securing member contacts with cavity respectively, can moistureproof, anti-salt fog, anticorrosion, prolong the useful life of resonant cavity, have the filtering device of this resonant cavity and volume that electromagnetic wave equipment also can prolong its useful life and also can obviously reduce thereupon.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of the resonant cavity of the utility model first embodiment;
Fig. 2 is the structural representation of the resonant cavity of the utility model second embodiment;
Fig. 3 is the test result figure that scribbles the damp and hot experiment of resonant cavity of moistureproof glue among the embodiment;
Fig. 4 is the resonant cavity test result figure of humidification not that scribbles moistureproof glue among the embodiment;
Fig. 5 is the test result figure that is not coated with the damp and hot experiment of resonant cavity of moistureproof glue among the embodiment;
Partial structurtes schematic diagram when Fig. 6 is the base station for electromagnetic wave equipment of the present utility model.
Embodiment
The utility model provides resonant cavity, filtering device and the electromagnetic wave equipment of a kind of protection against the tide, anti-salt fog, anticorrosion, life-saving.
Resonant cavity of the present utility model comprises cavity and is positioned at the harmonic oscillator of cavity, because harmonic oscillator need place in the cavity, so must comprising covering mutually and surrounding an enclosure space, cavity holds harmonic oscillator, therefore, as shown in Figure 1 and Figure 2, cavity generally includes upper chamber cover 1 and lower chambers 6, and the two surrounds out the enclosure space of an inside, and harmonic oscillator 5 namely is positioned at this enclosure space.
Utility model point of the present utility model is to have moistureproof glue at chamber outer surface.The advantage of She Zhiing is like this, because each holes from cavity such as steam, air enter in the enclosure space, can the work of harmonic oscillator 5 be exerted an influence, especially steam and corrosive gas enter, and can directly influence the useful life of harmonic oscillator 5 and filter.Therefore, adhere to moistureproof glue at chamber outer surface, can effectively reduce the generation of this this situation.
Chamber outer surface can be coated with full moistureproof glue fully fully stopping entering of steam and air, in order to save material and specific aim prevents, also can only be coated on the position that hole is arranged on the chamber outer surface.
In the utility model, the hole of chamber outer surface mainly comprises on the upper chamber cover 1 first fixing hole 3 tuning plug 2 being installed and being offered, the 3rd fixing hole for making things convenient for second fixing hole that securing member 20 fixedly connected upper chamber covers 1 and lower chambers 6 offer at upper chamber cover 1 and lower chambers 6 to offer, and also comprises the seam that contacts that upper chamber cover 1 and lower chambers 6 fasten.
Resonant cavity as shown in Figure 1, harmonic oscillator 5 is positioned at the enclosure space that upper chamber cover 1 and lower chambers 6 surround, be provided with through hole in the middle of the harmonic oscillator 5, tuning plug 2 passes upper chamber cover 1 and stretches into and play tunning effect in the enclosure space, offers on the upper chamber cover 1 and is convenient to first fixing hole 3 that tuning plug 2 passes.Wherein tuning plug 2 can partly expose outside cavity, and another part stretches in the cavity.
Resonant cavity as shown in Figure 2 not only comprises tuning plug 2, also comprises the securing member 20 of fixedly connected upper chamber cover 1 and lower chambers 6, and securing member 20 is generally bolt of long stem or other threaded fasteners.For securing member 20 is installed, offer the second fixing hole (not shown) at upper chamber cover 1, correspondence position in lower chambers 6 offers the 3rd fixing hole (not shown), securing member 20 inserts second fixing hole and the 3rd fixing hole successively, thereby upper chamber cover 1 is fixed on the lower chambers 6; In the example of Fig. 2, show that moistureproof glue 4 is coated with the mode of full upper chamber cover 1, certainly, place, the preferred only slit between securing member 20 and second fixing hole is coated with moistureproof glue 4.
In another embodiment, also the seam outer surface that contacts of upper chamber cover 1 and lower chambers 3 applies moistureproof glue 4 again, stitches the inner space that enters cavity to prevent water vapour from this contact, influences the electric property of harmonic oscillator 5.
If wish to obtain thicker moistureproof glue, can obtain by moistureproof glue two-layer or that multiple coating is thinner, after being coated with the moistureproof glue bone dry of ground floor, apply other which floor moistureproof glue more successively, available can better resonant cavity.
Resonant cavity of the present utility model also limits the kind of its harmonic oscillator that adopts, and therefore, harmonic oscillator can be the metal harmonic oscillator, it also can be dielectric resonance, dielectric resonance can be TE mould harmonic oscillator, also can be TM mould harmonic oscillator, or the harmonic oscillator of TEM mould harmonic oscillator or other patterns.Usually dielectric resonance all adopt dielectric constant greater than air (dielectric constant of air is 1 substantially), loss tangent less than 0.1 material, preferred dielectric constant greater than 10, loss angle tangent is less than 0.01, is dielectric constant best greater than 30, loss angle tangent is less than 0.001.Satisfy the material of this index request commonly used be pottery, for example aluminium oxide also can be microwave-medium ceramics, for example BaTi
4O
9, Ba
2Ti
9O
20, MgTiO
3-CaTiO
3, BaO-Ln
2O
3-TiO
2Or Bi
2O
3-ZnO-Nb
2O
5Deng, all can be used in the resonant cavity of the present utility model.
Harmonic oscillator of the present utility model also can be super material resonances, and super material resonances mainly contains two classes, and a class is super material resonances of TE mould, and a class is super material resonances of TM mould.
Super material resonances of TE mould refers to that it is applied in makes in the resonant cavity that first pattern of this resonant cavity is super material resonances of TE pattern, comprise a plurality of all-in-one-piece dieelctric sheets that pile up, the surface of one of them dieelctric sheet is provided with by what electric conducting material was made has a geometric artificial micro-structural.The adhesive linkage that relies on bonding agent to form between adjacent two dieelctric sheets connects, and when the contact-making surface between adjacent two dieelctric sheets was provided with artificial micro-structural, adhesive linkage covered part or all of in the zone except artificial micro-structural on the contact-making surface of two dieelctric sheets.Therefore, the thickness of adhesive linkage equates with the thickness of artificial micro-structural or greater than the thickness of artificial micro-structural.
The dielectric constant of the binding agent of tack coat should be low as far as possible, and loss tangent also should be as far as possible little, and preferred dielectric constant is 1 ~ 5, and loss tangent is 0.0001 ~ 0.1, and best dielectric constant is preferably 1 ~ 3, and loss is preferably 0.0001 ~ 0.01 binding agent.
The used material of the material of dieelctric sheet and dielectric resonance is identical, also all need dielectric constant greater than air (dielectric constant of air is 1 substantially), loss tangent less than 0.1, preferred dielectric constant greater than 10, loss angle tangent is less than 0.01, is dielectric constant best greater than 30, loss angle tangent is less than 0.001.Satisfy the material of this index request commonly used be pottery, for example aluminium oxide also can be microwave-medium ceramics, for example BaTi
4O
9, Ba
2Ti
9O
20, MgTiO
3-CaTiO
3, BaO-Ln
2O
3-TiO
2Or Bi
2O
3-ZnO-Nb
2O
5Deng, certainly, other materials also is feasible as polytetrafluoroethylene, epoxy resin etc.
The electric conducting material of making artificial micro-structural can be metal, and for example gold, silver, copper perhaps contain the alloy of gold, silver or copper.Electric conducting material also can be that other conduct electricity very well, are the nonmetallic materials of good conductor, for example indium tin oxide, Al-Doped ZnO or electrically conductive graphite etc.
Artificial micro-structural is planar structure, is generally the geometrical pattern that plating or evaporation after etching obtain, and can be other arbitrary shapes such as square shape sheet, disk shape, annular, " worker " font, " ten " font, split ring resonator.
Because existing harmonic oscillator all is not to be with the monoblock medium of artificial micro-structural, so there is not the adhesion problem of dieelctric sheet; And in the present embodiment, rely on and adhere to artificial micro-structural on the dieelctric sheet, can improve the dielectric constant of harmonic oscillator, reduce the resonance frequency of resonant cavity, thereby reduce the volume of resonant cavity; A plurality of dieelctric sheets are made one must be needed bondingly, and directly is coated with full bonding agent at dieelctric sheet, covers the Q value that artificial micro-structural can reduce harmonic oscillator greatly, is unfavorable for reaching the performance index of resonant cavity; And in the utility model, do not apply the adhesive linkage of bonding agent on the artificial micro-structural, and the loss of introducing is little, and the Q value is high, is conducive to the performance requirement of resonant cavity.
Super material resonances of TM mould refers to that it is applied in makes in the resonant cavity that first pattern of resonant cavity is super material resonances of TM pattern.Super material resonances of TM mould has the face of cylinder, and this face of cylinder is provided with the flat artificial micro-structural that attaches along this face of cylinder.Super material resonances of TM mould can be the sleeve of a hollow, and the inner surface of sleeve or outer surface are the face of cylinder, is attached with on this face of cylinder by what electric conducting material was made to have a geometric artificial micro-structural.Another kind of embodiment is, super material resonances of TM mould comprises common central shaft and sheathed at least two sleeves from inside to outside successively, the outer surface of one of them sleeve or inner surface are cylindrical, have on these one or more faces of cylinder by what electric conducting material was made and have a geometric artificial micro-structural.
The material of the sleeve is here selected can be identical with the dieelctric sheet of super material resonances of TE mould, gets final product with reference to the material of preamble to dieelctric sheet.Equally, the material of artificial micro-structural is selected, shape all can be identical with the description of the relevant artificial micro-structural of super material resonances of TE mould, and the artificial micro-structural that is the plane of super material resonances of TE mould bends to arc along the face of cylinder in the TM pattern.
The advantage of resonant cavity of the present utility model is described below by concrete experiment.
The resonant cavity that scribbles the resonant cavity of moistureproof glue and be not coated with moistureproof glue is done damp and hot experiment respectively, be dielectric resonance in the resonant cavity, moistureproof glue is coated with full upper chamber cover according to mode shown in Figure 2, humidification 95% under 25 ℃ and 55 ℃ of temperature, each two hours circulation primary, be 2110MHz in frequency, test result such as Fig. 3 under the 2170MHz, shown in 5, scribble moistureproof glue not test result such as Fig. 4 of humidification, show that the resonant cavity that has been coated with moistureproof glue is constant substantially with respect to the S21 parameter of the resonant cavity that is not coated with moistureproof glue, the contrast test result of S21 parameter shows that its Insertion Loss of resonant cavity and the return loss that scribble moistureproof glue do not have to change substantially under the 2110MHz, and its Insertion Loss that is not coated with moistureproof glue will increase 0.3dB, and return loss reduces 3dB.Therefore the resonant cavity that scribbles moistureproof glue can moistureproof, anti-salt fog, anticorrosion, increase the service life.
Therefore; the utility model is also protected a kind of filtering device with above-mentioned resonant cavity; this filtering device can be filter; band pass filter for example; band stop filter; high pass filter; low pass filter or multiband filter; it also can be duplexer; can also be that other play filter function; and the filtering device with one or more resonant cavitys; in these one or more resonant cavitys; at least one resonant cavity comprises cavity or is arranged on the interior harmonic oscillator of cavity; and this chamber outer surface is attached with moistureproof glue; this protection against the tide glue is attached on the position that hole is arranged on this chamber outer surface at least, and preferred moistureproof glue is coated in the place, slit between the tuning plug and first fixing hole and place, the slit between securing member and second fixing hole on the upper chamber cover.All features of the resonant cavity here and harmonic oscillator thereof are all identical with the description of above-mentioned corresponding contents, hereinafter repeat no more.
And then the utility model is also protected a kind of electromagnetic wave equipment with above-mentioned filtering device, and this electromagnetic wave equipment can be the equipment that any needs are used filtering device, for example aircraft, radar, base station, satellite etc.These electromagnetic wave equipment can receive and send signal, and after receiving or before sending, carry out filtering, so that institute's signal of receiving or sending satisfies the demands, so electromagnetic wave equipment at least also comprises the signal emission module that is connected with the input of filtering device, the signal receiving module that is connected with the output of filtering device.
For example, as shown in Figure 6, electromagnetic wave equipment 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.Have at least one to be above-mentioned filtering device in described post a letter band pass filter and the collection of letters band pass filter.Other electromagnetic wave equipment comprise that aircraft, radar, satellite etc. also can adopt above-mentioned filtering device, improve the life-span of filtering device, reduce the part replacement speed of this electromagnetic wave equipment, increase the service life and reduce maintenance cost.
To sum up, adopt resonant cavity of the present utility model, the resonant cavity outer surface is arranged moistureproof glue, especially be coated in the place, slit that parts such as tuning plug and securing member contact with cavity respectively, can effectively prevent from entering in the cavity because of moisture and corrosive gas, influence the electric property of resonant cavity.And therefore filtering device and electromagnetic wave equipment with this resonant cavity also can increase the service life greatly, reduce the care and maintenance cost.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.
Claims (30)
1. resonant cavity, described resonant cavity comprises: cavity, be arranged on the harmonic oscillator in the described cavity, it is characterized in that described resonant cavity chamber outer surface is with moistureproof glue.
2. resonant cavity according to claim 1 is characterized in that, is coated with completely or partly applies moistureproof glue on the described chamber outer surface.
3. resonant cavity according to claim 1 is characterized in that, described cavity comprises upper chamber cover and lower chambers, and described upper chamber cover and lower chambers surround out enclosure space, and described harmonic oscillator is positioned at described enclosure space.
4. resonant cavity according to claim 3 is characterized in that, the contacting to sew on of described upper chamber cover and lower chambers is attached with moistureproof glue.
5. resonant cavity according to claim 3 is characterized in that, described resonant cavity also comprises and passes described upper chamber cover and enter tuning plug in the described enclosure space, offers on the described upper chamber cover and is convenient to first fixing hole that described tuning plug passes.
6. resonant cavity according to claim 5 is characterized in that, described moistureproof glue covers the place, slit between described tuning plug and first fixing hole.
7. resonant cavity according to claim 3 is characterized in that, described resonant cavity also comprises the securing member that passes described upper chamber cover and fixedly connected with described lower chambers, offers on the described upper chamber cover to be convenient to second fixing hole that described securing member passes.
8. resonant cavity according to claim 7 is characterized in that, described moistureproof glue covers the place, slit between described securing member and second fixing hole.
9. resonant cavity according to claim 1 is characterized in that, described harmonic oscillator is the metal harmonic oscillator.
10. resonant cavity according to claim 1 is characterized in that, described harmonic oscillator is dielectric resonance.
11. resonant cavity according to claim 10 is characterized in that, described dielectric resonance is TE mould harmonic oscillator or TM mould harmonic oscillator.
12. resonant cavity according to claim 10 is characterized in that, described dielectric resonance by dielectric constant greater than 1, loss tangent makes less than 0.1 material.
13. resonant cavity according to claim 10 is characterized in that, described dielectric resonance by dielectric constant greater than 10, loss angle tangent makes less than 0.01 material.
14. resonant cavity according to claim 10 is characterized in that, the sub-material of described dielectric resonance by dielectric constant greater than 30, loss angle tangent makes less than 0.001 material.
15. resonant cavity according to claim 10 is characterized in that, the material of described dielectric resonance is pottery.
16. resonant cavity according to claim 1 is characterized in that, described harmonic oscillator is super material resonances.
17. resonant cavity according to claim 16 is characterized in that, described super material resonances is super material resonances of TE mould.
18. resonant cavity according to claim 17 is characterized in that, super material resonances of described TE mould comprises a plurality of all-in-one-piece dieelctric sheets that pile up, and the surface of at least one described dieelctric sheet is provided with by what electric conducting material was made has a geometric artificial micro-structural.
19. resonant cavity according to claim 18 is characterized in that, super material resonances of described TE mould also comprises the tack coat that connects adjacent two dieelctric sheets, and described tack coat covers on the dieelctric sheet surface on the surf zone except described artificial micro-structural.
20. resonant cavity according to claim 19 is characterized in that, the thickness of described tack coat equates with the thickness of described artificial micro-structural.
21. resonant cavity according to claim 16 is characterized in that, described super material resonances is super material resonances of TM mould.
22. resonant cavity according to claim 21, it is characterized in that, super material resonances of described TM mould is the sleeve of hollow, and the inner surface of described sleeve or outer surface are the face of cylinder, is attached with on the described face of cylinder by what electric conducting material was made to have a geometric artificial micro-structural.
23. resonant cavity according to claim 21, it is characterized in that, super material resonances of described TM mould comprises common central shaft and sheathed at least two sleeves from inside to outside successively, the outer surface of one of them sleeve or inner surface are cylindrical, have on the described face of cylinder by what electric conducting material was made and have a geometric artificial micro-structural.
24. a filtering device comprises one or more resonant cavitys, it is characterized in that, one of them resonant cavity is each described resonant cavity of claim 1 to 23.
25. filtering device according to claim 24 is characterized in that, described filtering device is filter or duplexer.
26. filtering device according to claim 25 is characterized in that, described filtering device is band pass filter, band stop filter, high pass filter, low pass filter or multiband filter.
27. electromagnetic wave equipment, it is characterized in that, comprise signal emission module, signal receiving module and as each described filtering device of claim 24 to 26, the input of described filtering device is connected with described signal emission module, output is connected with signal receiving module.
28. electromagnetic wave equipment according to claim 27 is characterized in that, described electromagnetic wave equipment is the base station.
29. electromagnetic wave equipment according to claim 28, 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 at least one is described filtering device in described post a letter band pass filter and the collection of letters band pass filter.
30. electromagnetic wave equipment according to claim 27 is characterized in that, described electromagnetic wave equipment is aircraft or radar or satellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735438 CN203119075U (en) | 2012-11-20 | 2012-11-30 | Resonant cavity, filter device and electromagnetic wave equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220616509 | 2012-11-20 | ||
| CN201220616509.5 | 2012-11-20 | ||
| CN 201220735438 CN203119075U (en) | 2012-11-20 | 2012-11-30 | Resonant cavity, filter device and electromagnetic wave equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119075U true CN203119075U (en) | 2013-08-07 |
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|---|---|---|---|
| CN 201220735438 Expired - Fee Related CN203119075U (en) | 2012-11-20 | 2012-11-30 | Resonant cavity, filter device and electromagnetic wave equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870570A (en) * | 2016-04-01 | 2016-08-17 | 苏州欣天新精密机械有限公司 | Preparation method of composite material resonant column |
-
2012
- 2012-11-30 CN CN 201220735438 patent/CN203119075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870570A (en) * | 2016-04-01 | 2016-08-17 | 苏州欣天新精密机械有限公司 | Preparation method of composite material resonant column |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20201130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |