CN202434684U - Resonant cavity - Google Patents
Resonant cavity Download PDFInfo
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- CN202434684U CN202434684U CN2011202959429U CN201120295942U CN202434684U CN 202434684 U CN202434684 U CN 202434684U CN 2011202959429 U CN2011202959429 U CN 2011202959429U CN 201120295942 U CN201120295942 U CN 201120295942U CN 202434684 U CN202434684 U CN 202434684U
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- resonant cavity
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Abstract
The utility model relates to a resonant cavity including a cavity body, a metal board installed in the cavity body to divide the cavity body into two enclosed chambers, and an input terminal and an output terminal installed on two side walls of the cavity body respectively and thereby extending into the two chambers respectively. The input terminal and the output terminal are arranged oppositely. Ultra material boards are disposed in the two chambers respectively. Each of the ultra material boards includes a substrate made of metal and at least one man-made micro-structure adhering on the substrates. Each of the man-made micro-structures is a two-dimensional or three-dimensional structure having geometric graphs and composed of wires made of conductive material. By adopting the structure provided by the utility model, a single resonant cavity can be utilized. Thus, a function of a small-size band-pass filter can be realized.
Description
Technical field
The utility model relates to electromagnetic communication, more particularly, relates to a kind of resonant cavity.
Background technology
In microwave device, cavity body filter is very important a kind of device.Cavity body filter is made up of several microwave cavities, and each resonant cavity has the cavity by conductive wall (or magnetic conducting wall) encirclement of an arbitrary shape.Usually, a resonant cavity has fixing resonance frequency, connects together through a plurality of resonant cavitys that will have different resonance frequencys and forms a filter, makes it have the bandwidth of certain width.So just make filter will realize the logical or band resistance of band of certain bandwidth, just need possess a plurality of resonant cavitys, cause bulky defective.
The utility model content
The technical problem that the utility model will solve is, could realize the defective of filter function providing a kind of single resonant cavity just can realize the resonant cavity of filter function to above-mentioned a plurality of resonant cavitys of prior art.
The utility model solves the technical scheme that its technical problem adopted: construct a kind of resonant cavity; Comprise cavity, be contained in said inside cavity thereby said cavity is separated into the metallic plate of two closed chambers, is contained on the two side of said cavity and stretches into input and the output in said two chambers respectively respectively; Said input and output are provided with in opposite directions; Respectively be placed with ultra plate of material in said two chambers; Said ultra plate of material comprises the nonmetal substrate of processing and attached at least one the artificial micro-structural on the substrate, each artificial micro-structural be the silk thread of electric conducting material form have geometric plane or a stereochemical structure.
In the described resonant cavity of the utility model, said ultra plate of material comprises at least one ultra sheet of material, and each ultra sheet of material comprises substrate and periodically is arranged in the artificial micro-structural on the said substrate.
In the described resonant cavity of the utility model, said artificial micro-structural is arranged into a rectangular array on said substrate.
In the described resonant cavity of the utility model; Said ultra plate of material comprises a plurality of ultra sheet of material, and adjacent two surpassing between the sheet of material through machinery or bonding way links together or through pouring into liquid baseplate material after coagulation between the sheet of material and the two is fused to together two surpassing.
In the described resonant cavity of the utility model, be interspersed with the connecting rod of a metal on the said metallic plate, the central axis conllinear of the axis of said connecting rod and said input, output, and its two ends are stretched into respectively in two chambers.
In the described resonant cavity of the utility model, thereby each ultra material block is clipped in respectively between input or output and the corresponding connecting rod end by built on stilts.
In the described resonant cavity of the utility model, it is supported that the bottom of each ultra plate of material is lined with the bearing of electromagnetic wave transparent material.
In the described resonant cavity of the utility model, said artificial micro-structural is the I-shaped or criss-cross shape of deriving that silk thread is formed.
In the described resonant cavity of the utility model, the said criss-cross shape of deriving has four identical branch roads, arbitrary branch road with any be pivot revolve successively turn 90 degrees, 180 the degree, 270 the degree after overlap with other three branch roads respectively.
In the described resonant cavity of the utility model, three branch roads of each branch road one end and other end points altogether are connected, and the other end is a free end, is provided with at least one kink between the two ends.
In the described resonant cavity of the utility model, said artificial micro-structural is the structure of silk thread spirally-wound.
Implement the resonant cavity of the utility model, have following beneficial effect: adopt the structure of the utility model, can utilize single resonant cavity, can realize the function of mini zone bandpass filter.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is that the resonant cavity of the utility model is not provided with ultra plate of material structural representation before;
Fig. 2 is the structural representation after resonant cavity shown in Figure 1 is set up ultra plate of material;
Fig. 3 is the structural representation of one of them ultra sheet of material of ultra plate of material in the resonant cavity shown in Figure 2;
Fig. 4 is the emulation sketch map of resonant cavity shown in Figure 1;
Fig. 5 is the policy sketch map of resonant cavity shown in Figure 2;
Fig. 6 is that artificial micro-structural is I-shaped structural representation of deriving during shape;
Fig. 7 is that artificial micro-structural is criss-cross structural representation of deriving during shape;
To be artificial micro-structural be another kind of criss-cross structural representation of deriving during shape to Fig. 8;
Fig. 9 to Figure 11 is that artificial micro-structural is the structural representation of spiral three kinds of embodiment.
Embodiment
The utility model relates to a kind of resonant cavity, and is as shown in Figure 1, comprises cavity 100, metallic plate 700, input 510 and output 500.Wherein, metallic plate 700 is contained in cavity 100 inside, the inner space of cavity 100 is separated into the chamber 300 of two sealings.Metallic plate 700 preferred copper coins.The cross section of metallic plate 700 is identical with the cross section of cavity 100, makes two chambers 300 completely cut off fully and open that for example cavity 100 is of a size of 20mm * 20mm * 20mm, and metallic plate 700 is of a size of 20mm * 20mm * 4mm.Input 510 is contained in respectively on the both sides sidewall of cavity 100 with output 500, and stretches into two chamber 300 inside respectively.Input 510 is provided with output 500 in opposite directions, totally one central axis.
Passed a connecting rod 400 in the middle of the metallic plate 700, through isolated opening such as insulating sleeves, made and insulate between connecting rod 400 and the metallic plate 700 between connecting rod 400 and the metallic plate 700.The central axis conllinear of the axis of connecting rod 400 and input 510, output 500.As shown in Figure 1, the two ends of connecting rod 400 are stretched into respectively in two chambers 300.Connecting rod 400 is the copper bar, and input 510 also preferably adopts the copper bar with the part that output 500 stretches in the chamber 300 simultaneously.Certainly, connecting rod 400 also can adopt other metal materials to process with input 510, output 500 ends.
The innovative point of the utility model is, in two chambers 300, is respectively arranged with a ultra plate of material 600, thereby each ultra plate of material 600 is clipped in respectively between input 510 or output 500 and corresponding connecting rod 400 ends by built on stilts.Perhaps, in order to strengthen fastness, also can be lined with in each ultra plate of material 600 bottom electromagnetic wave transparent material for example the bearing processed of foam play a supportive role.
Ultra material (metamaterial); Claim artificial electromagnetic material again; Be a kind of electromagnetic wave to be had the material of specific response, by medium substrate with periodically be arranged in the lip-deep artificial micro-structural of medium substrate and form, artificial micro-structural is generally electric conducting material such as metal and processes.Through to geometric figure, the size of artificial micro-structural with arrange and design, can make ultra material monolithic embody special even characteristic that occurring in nature is difficult to reach, for example characteristics such as higher dielectric constant, negative magnetoconductivity, negative index.The ultra plate of material of the utility model has promptly adopted this technology, so that the resonant cavity of the utility model has the effect of resonant bandwidth.
As shown in Figure 2, ultra plate of material comprises at least one ultra sheet of material, shows among the figure that each ultra plate of material comprises 7 ultra sheet of material.
Each ultra sheet of material is as shown in Figure 3, comprises substrate 3 and attached to a plurality of artificial micro-structural 2 on the substrate 3.Wherein, substrate 3 is processed by nonmetallic materials usually, for example FR-4, polytetrafluoroethylene, epoxy resin, pottery etc.Artificial micro-structural 2 has geometric plane or a stereochemical structure for what the silk thread of electric conducting material was formed, and the electric conducting material here is generally metal for example copper, silver etc., also can be for example ITO, conductive plasticss etc. of other nonmetallic electric conducting materials.When ultra sheet of material has when a plurality of, adjacent two surpass between the sheet of material links together through machinery or bonding way or through pouring into liquid baseplate material after coagulation between the sheet of material and the two is fused to together two surpassing.
Artificial micro-structural 2 is generally the rectangular array of for example periodically arranging and arranges on substrate 3 surfaces, each artificial micro-structural 2 is all identical; Also can a plurality of artificial micro-structural 2 its shapes, size is different; For example can reduce its size according to certain increasing or decreasing rule gradually or rotate its orientation, these characteristics all are can for example the demand, magnetic permeability distributed needs etc. of refraction index profile are carried out point-to-point design according to different actual demands.Two ultra plate of material are all identical in the utility model, comprise the ultra sheet of material that quantity is identical separately, have a plurality of identical artificial micro-structurals on each ultra sheet of material and are arranged into a rectangular array.
In the utility model, preferably can realize the artificial micro-structural of high-k, such structure has a variety of, will specify below.
Artificial micro-structural 2 can be for I-shaped, and it comprises straight first metal wire and is connected the first metal wire two ends and by vertical two second metal wires of dividing equally of first metal wire; I-shaped artificial micro-structural 2 like this can also further be derived; Obtain the I-shaped shape of deriving; As shown in Figure 6, it also comprises being connected to every second metal wire 202 two ends and the 3rd metal wire of vertically being divided equally by second metal wire 202 203, the 4th metal wire 204 that is connected to every the 3rd metal wire 203 two ends and is vertically divided equally by the 3rd metal wire 203 except first metal wire 201, second metal wire 202; The rest may be inferred, continues to derive.
Equally; The artificial micro-structural 2 of the utility model can also be the criss-cross shape of deriving; It comprises that two vertically and are mutually divided equally criss-cross first metal wire 201 of formation; Also comprise second metal wire 202 that is connected to every first metal wire 201 two ends and is vertically divided equally by first metal wire 201, the shape of deriving of formation is as shown in Figure 3; Further; As shown in Figure 7; When artificial micro-structural except that first, second metal wire; Also can comprise the 3rd metal wire 203 that is connected to every second metal wire 202 two ends and is vertically divided equally by second metal wire 202, and the 4th metal wire 204 that is connected to every the 3rd metal wire 203 two ends and is vertically divided equally by every the 3rd metal wire 203.All right the rest may be inferred, obtains other derived structures.
In the embodiment of other criss-cross shapes of deriving; As shown in Figure 8; Artificial micro-structural 2 comprises four identical branch roads 210, and arbitrary branch road 210 is that pivot revolves successively and turn 90 degrees, overlaps respectively at other three branch roads 210 successively behind 180 degree, 270 degree with a bit.In this example, three branch roads of each branch road 210 1 end and other 210 end points altogether are connected, and the other end is a free end, is provided with at least one kink between the two ends.The kink here can be rolled over for quarter bend, also can be wedge angle bending or fillet bending.Free-ended outside also can be connected with straightway or other curves.Artificial micro-structural 2 like this is an isotropic structure, and it is all identical to electromagnetic response characteristic on all directions on the plane at place, the characteristic so the above-mentioned artificial micro-structural of the criss-cross shape of deriving like Fig. 3, Fig. 7 also has.In the resonant cavity, preferentially select ultra plate of material for use with the artificial micro-structural of isotropism.
When artificial micro-structural 2 is spirality, also can reach the characteristic of high-k, its structure such as Fig. 9, Figure 10 and shown in Figure 11.Fig. 9 be a rhizoid line two ends respectively clockwise, spirals counterclockwise, Figure 10 is a synchronous screw after the rhizoid line doubling, Figure 11 is four identical helixes totally one outer end points and structures of being linked to be.Such helical structure can both make and the first surpass material block and have higher dielectric constant, thereby plays the effect that reduces frequency.
In order to verify the superiority of the utility model, the resonant cavity that cavity shown in Figure 1 and shown in Figure 2 is added in cavity shown in Figure 1 after the excess of imports plate of material carries out emulation.Wherein, the inside dimension of resonant cavity is that cavity is of a size of 20mm * 20mm * 20mm, and metallic plate is of a size of 20mm * 20mm * 4mm, and metallic plate is a copper coin; Input, output are the copper bar, and diameter 1mm stretches into 2.6mm respectively in chamber separately; Connecting rod is the copper bar, diameter 1.1mm, and 2.6mm is also stretched into respectively in its two ends in two chambers.
Such cavity is carried out the S parameters simulation, and its result is as shown in Figure 4.Can know that by Fig. 4 such resonant cavity does not produce resonance.
In cavity shown in Figure 1, put into ultra plate of material, as shown in Figure 2, each ultra plate of material has 7 ultra sheet of material; The substrate of each ultra sheet of material is FR-4; Thick 0.4mm, artificial micro-structural is arranged into a rectangular array with the line displacement of 1.4mm, the line skew of 1.4mm on substrate, and each artificial micro-structural is of a size of 1.2mm * 1.2mm; Live width is 0.1mm, and geometry is as shown in Figure 3.
Resonant cavity to adding after the excess of imports plate of material carries out emulation, and its result is as shown in Figure 5.Can be known that by Fig. 5 the resonant cavity of this structure is similar to a mini zone bandpass filter, frequency range is approximately 400～450MHz, resonance frequency (F
L-F
H)=6.1～6.6GHz, and S11=-30dB, S21=-0.00544358dB.
From the above, adopt the structure of the utility model, can utilize single resonant cavity; Can realize the function of mini zone bandpass filter; This is because input, output, make each artificial micro-structural generation resonance of ultra plate of material as excitation port, the realization cross-couplings; And resonance frequency is synchronous, reaches the effect of energy storage frequency reducing.Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the 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 utility model.
Claims (10)
1. resonant cavity; Comprise cavity, be contained in said inside cavity thereby said cavity is separated into the metallic plate of two closed chambers, is contained on the two side of said cavity and stretches into input and the output in said two chambers respectively respectively; Said input and output are provided with in opposite directions; It is characterized in that; Respectively be placed with ultra plate of material in said two chambers, said ultra plate of material comprises the nonmetal substrate of processing and attached at least one the artificial micro-structural on the substrate, each artificial micro-structural be the silk thread of electric conducting material form have geometric plane or a stereochemical structure.
2. resonant cavity according to claim 1 is characterized in that, said ultra plate of material comprises at least one ultra sheet of material, and each ultra sheet of material comprises substrate and periodically is arranged in the artificial micro-structural on the said substrate.
3. resonant cavity according to claim 2 is characterized in that, said artificial micro-structural is arranged into a rectangular array on said substrate.
4. resonant cavity according to claim 2; It is characterized in that; Said ultra plate of material comprises a plurality of ultra sheet of material, and adjacent two surpassing between the sheet of material through machinery or bonding way links together or through pouring into liquid baseplate material after coagulation between the sheet of material and the two is fused to together two surpassing.
5. resonant cavity according to claim 1 is characterized in that, is interspersed with the connecting rod of a metal on the said metallic plate, the central axis conllinear of the axis of said connecting rod and said input, output, and its two ends are stretched into respectively in two chambers.
6. resonant cavity according to claim 5 is characterized in that, thereby each ultra material block is clipped in respectively between input or output and the corresponding connecting rod end by built on stilts, and it is supported that perhaps the bottom of each ultra plate of material is lined with the bearing of electromagnetic wave transparent material.
7. resonant cavity according to claim 2 is characterized in that, said artificial micro-structural is the I-shaped or criss-cross shape of deriving that silk thread is formed.
8. resonant cavity according to claim 7 is characterized in that, the said criss-cross shape of deriving has four identical branch roads, arbitrary branch road with any be pivot revolve successively turn 90 degrees, 180 the degree, 270 the degree after overlap with other three branch roads respectively.
9. resonant cavity according to claim 8 is characterized in that, three branch roads of each branch road one end and other end points altogether are connected, and the other end is a free end, is provided with at least one kink between the two ends.
10. resonant cavity according to claim 2 is characterized in that, said artificial micro-structural is the structure of silk thread spirally-wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202959429U CN202434684U (en) | 2011-08-16 | 2011-08-16 | Resonant cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202959429U CN202434684U (en) | 2011-08-16 | 2011-08-16 | Resonant cavity |
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| CN202434684U true CN202434684U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202959429U Expired - Lifetime CN202434684U (en) | 2011-08-16 | 2011-08-16 | Resonant cavity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938487A (en) * | 2011-08-16 | 2013-02-20 | 深圳光启高等理工研究院 | Resonant cavity |
| 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 |
| CN103022624A (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 |
| CN103022623A (en) * | 2012-11-20 | 2013-04-03 | 深圳光启创新技术有限公司 | Harmonic oscillator, method for preparing harmonic oscillator, resonant cavity, filter device and microwave device |
-
2011
- 2011-08-16 CN CN2011202959429U patent/CN202434684U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938487A (en) * | 2011-08-16 | 2013-02-20 | 深圳光启高等理工研究院 | Resonant cavity |
| CN102938487B (en) * | 2011-08-16 | 2015-10-14 | 深圳光启高等理工研究院 | A kind of resonant cavity |
| 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 |
| CN103022624A (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 |
| CN103022623A (en) * | 2012-11-20 | 2013-04-03 | 深圳光启创新技术有限公司 | Harmonic oscillator, method for preparing harmonic oscillator, resonant cavity, filter device and microwave device |
| US9711832B2 (en) | 2012-11-20 | 2017-07-18 | Kuang-Chi Innovative Technology Ltd. | Harmonic oscillator and cavity filter and electromagnetic wave device thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
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| CX01 | Expiry of patent term |