CN103187609B - A kind of resonator cavity - Google Patents
A kind of resonator cavity Download PDFInfo
- Publication number
- CN103187609B CN103187609B CN201110216460.4A CN201110216460A CN103187609B CN 103187609 B CN103187609 B CN 103187609B CN 201110216460 A CN201110216460 A CN 201110216460A CN 103187609 B CN103187609 B CN 103187609B
- Authority
- CN
- China
- Prior art keywords
- resonator cavity
- cavity
- man
- metamaterial sheet
- made microstructure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to a kind of resonator cavity, it is internal is cavity, described inside cavity is placed with at least one metamaterial sheet, each metamaterial sheet includes the nonmetallic materials substrate made and the man-made microstructure adhered on the surface of the substrate, and described man-made microstructure is the structure with geometrical pattern of the silk thread composition of conductive material.Use the resonator cavity of the present invention, after it adds metamaterial sheet, it is possible to substantially reduce the resonant frequency of resonator cavity, therefore can realize the miniaturization of resonator cavity.
Description
Technical field
The present invention relates to wireless communication field, more particularly, it relates to a kind of resonator cavity.
Background technology
Resonator cavity is the resonant element worked at microwave frequencies, and the resonant frequency of microwave cavity depends on this
The volume in chamber, in general, the biggest resonant frequency of volume of resonant cavity is the lowest, and volume of resonant cavity reduces resonance frequency
Rate is the highest, the most how to realize reducing the resonant frequency pair of resonator cavity in the case of not increasing resonant cavity size
Miniaturization in resonator cavity has great importance.
Summary of the invention
The technical problem to be solved in the present invention is, the above-mentioned single resonator cavity for prior art to realize low
Frequency may result in bulky defect, it is provided that a kind of small size and the resonator cavity of low frequency.
The technical solution adopted for the present invention to solve the technical problems is: a kind of resonator cavity of structure, inside it is
Cavity, described inside cavity is placed with at least one metamaterial sheet, and each metamaterial sheet includes nonmetal
The substrate that material is made and attachment man-made microstructure on the surface of the substrate, described man-made microstructure is conduction material
The structure with geometrical pattern of the silk thread composition of material.
In resonator cavity of the present invention, described metamaterial sheet has multiple, and all metamaterial sheet are mutual
Interval is arranged or surface links into an integrated entity in contact abreast.
In resonator cavity of the present invention, being provided with bearing in described cavity, described metamaterial sheet is fixed
On described bearing.
In resonator cavity of the present invention, shown bearing is made up of electromagnetic wave transparent material.
In resonator cavity of the present invention, described man-made microstructure is I-shaped or I-shaped derivative
Shape.
In resonator cavity of the present invention, described man-made microstructure is cross or criss-cross derivative
Shape.
In resonator cavity of the present invention, described criss-cross derivative shape has four identical branch roads, appoints
One branch road with any be center of rotation successively 90-degree rotation, 180 degree, after 270 degree successively respectively at other three
Individual branch road overlaps.
In resonator cavity of the present invention, three branch roads in each branch road one end and other end points altogether is connected, separately
One end is free end, is provided with at least one kink between two ends.
In resonator cavity of the present invention, the free end of described branch road connects a line segment.
In resonator cavity of the present invention, the material of described substrate is pottery, politef, asphalt mixtures modified by epoxy resin
Fat or FR-4.
Implementing the resonator cavity of the present invention, have the advantages that the resonator cavity using the present invention, it adds
After metamaterial sheet, can substantially reduce resonant frequency under conditions of not changing resonator cavity volume, therefore have
It is beneficial to realize the miniaturization of resonator cavity.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the resonator cavity of the preferred embodiment of the present invention；
Fig. 2 is the structural representation of the metamaterial sheet of resonator cavity shown in Fig. 1；
Fig. 3 be man-made microstructure be the structural representation of I-shaped derivative shape；
Fig. 4 be man-made microstructure be the structural representation of criss-cross derivative shape；
Fig. 5 to Fig. 8 be man-made microstructure be the structural representation of another four kinds of criss-cross derivative shapes.
Detailed description of the invention
The present invention relates to a kind of resonator cavity, be primarily referred to as microwave cavity, as it is shown in figure 1, it is internal for filling out
The cavity 8 of filling medium.The medium that the present invention fills in cavity 8 is Meta Materials.
As it is shown in figure 1, Meta Materials includes at least one metamaterial sheet 1.When metamaterial sheet 1 has one
Time, can be affixed directly in cavity 8.When metamaterial sheet 1 has multiple, multiple Meta Materials sheets
Layer 1 surface is the most bonding integral, it is possible to place electromagnetic wave transparent material between adjacent two metamaterial sheet 1
Such as foam is spaced apart by them.Bearing can be placed in cavity 8, bearing arranges slot, by multiple super
In the overall insertion slot that sheet of material 1 is constituted, the placement so that they are parallel to each other.Bearing preferred foams
The electromagnetic wave transparent materials such as plastics.
Metamaterial sheet 1 includes flat substrate 3 and the man-made microstructure 2 being attached on substrate 3 surface.
Wherein, substrate 3 is made up of nonmetallic materials, as politef, epoxy resin, pottery, ferroelectric material,
Ferrite material, ferromagnetic material, FR-4 material etc..Man-made microstructure 2 is that at least silk thread is at substrate 3
The structure of certain geometrical pattern of composition, such as I-shaped, split ring resonator shape etc. on surface.Artificial
The silk thread of micro structure 2 is made of an electrically conducting material, usually metal such as silver, copper etc., it is also possible to use other
Nonmetallic conductive material such as ITO makes.The live width of these silk threads, within 1mm, preferably can be processed
Minimum feature such as 0.1mm；The very thin thickness of silk thread, the usually thickness of coating, in the present invention generally
Less than 0.1mm, such as 0.018mm.
The geometrical pattern of man-made microstructure 2 has a variety of situation, it is known that as I-shaped, it includes being in line
The first metal wire 201 and be connected to the first metal wire 201 two ends and vertically divided equally by the first metal wire 201
Two second metal wires 202；Such I-shaped man-made microstructure can also derive further, obtains work
The derivative shape of font, as it is shown on figure 3, it is in addition to first, second metal wire, also includes being connected to
Every second metal wire 202 two ends and the 3rd metal wire 203 vertically divided equally by the second metal wire 202, point
It is not connected to every 3rd metal wire 203 two ends and the 4th metal wire vertically divided equally by the 3rd metal wire 203
204, the rest may be inferred, continues derivative.
Equally, the man-made microstructure 2 of the present invention can also is that criss-cross derivative shape, and it includes two vertically
And divide mutually criss-cross first metal wire 201 of composition equally, also include being connected to every first metal wire
201 two ends and the second metal wire 202 vertically divided equally by the first metal wire 201, the derivative shape of composition such as figure
Shown in 2；Further, when man-made microstructure is in addition to first, second metal wire, may also include and connect respectively
At every second metal wire 202 two ends and the 3rd metal wire 203 vertically divided equally by the second metal wire 202,
And be connected to every 3rd metal wire 203 two ends and vertically divided equally by every 3rd metal wire 203
4th metal wire 204, then its structure is as shown in Figure 4.All right the rest may be inferred, obtains other derived structures.
In the embodiment of other criss-cross derivative shapes, man-made microstructure 2 includes four identical branch roads
210, arbitrary branch road 210 with any be center of rotation successively 90-degree rotation, 180 degree, after 270 degree successively
Overlap respectively at other three branch roads 210.Therefore, such man-made microstructure 2 is isotropic structure,
It is the most identical to the response characteristic of electromagnetic wave in all directions of the plane at place, above-mentioned such as Fig. 2, Fig. 4
Criss-cross derivative shape man-made microstructure also have characteristics that.Certainly, in above-described embodiment, four
Branch road 210 can totally one end points thus connect as one.
As shown in Fig. 5 to Fig. 8, three branch roads in each branch road 210 one end and other 210 end points altogether is connected,
The other end is free end, is provided with at least one kink between two ends.Here kink can be right angle
Bending, as shown in Figure 5, it is also possible to be that wedge angle bends as shown in Figure 6, Figure 7, it is also possible to be fillet bending,
As shown in Figure 8.The outside of free end also can connect straightway, as shown in Figure 7, Figure 8, preferably is from
It is connected with the midpoint of this line segment by the end points held.
Due to the existence of the man-made microstructure 2 that conductive material is made, it is normal that metamaterial sheet has higher dielectric
Number, after it loads resonator cavity, it is possible to substantially reduce the resonant frequency of resonator cavity so that by multiple resonator cavity groups
The wave filter miniaturization become is possibly realized.
Such as, cavity shown in Fig. 1 is the cube of 20mm × 20mm × 20mm, and metamaterial sheet is
15mm × 12mm × 1.018mm, altogether 12 metamaterial sheet, substrate is pottery, and thickness is 1mm,
Each man-made microstructure is criss-cross derivative shape as shown in Figure 1 and Figure 2, its a size of 3mm × 3mm,
On every piece of substrate, array is placed with 4 × 5 man-made microstructure.By emulation, first, second resonance
Frequency is 0, and the 3rd resonant frequency is 1.9699GHz.And the resonant frequency of cavity is 10GHz.It is visible,
After adding metamaterial structure, its resonant frequency is reduced to 1.9699GHz.It addition, resonator cavity has the most not
Same mould, correspond to different resonant frequencies, uses embodiments of the invention, first, second resonant frequency
Being 0, show that low-order mode is suppressed, high-order mode is excited, and more high-order mode then Q-value is the highest, Q-value Gao Yi
The loss that taste resonator cavity is little.This is also one of the advantage of the present invention.As can be seen here, the employing present invention's is humorous
Shake chamber, after it adds metamaterial sheet 1, can substantially reduce resonant frequency, be advantageously implemented the little of wave filter
Type.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned
Detailed description of the invention, above-mentioned detailed description of the invention is only schematic rather than restrictive, this
The those of ordinary skill in field, under the enlightenment of the present invention, is being protected without departing from present inventive concept and claim
Under the ambit protected, it may also be made that a lot of form, within these belong to the protection of the present invention.
Claims (7)
1. a resonator cavity, it is internal is cavity, it is characterised in that described inside cavity is placed with at least
One metamaterial sheet, each metamaterial sheet includes substrate that nonmetallic materials make and is attached to substrate table
Man-made microstructure on face, described man-made microstructure be conductive material silk thread composition there is geometrical pattern
Structure, described man-made microstructure is cross or criss-cross derivative shape, and described criss-cross derivative shape has
Having four identical branch roads and four branch road totally one end points, arbitrary branch road depends on public point for center of rotation
Secondary 90-degree rotation, 180 degree, overlap respectively at other three branch roads successively after 270 degree, each branch road one end
Being connected with other three branch roads end points altogether, the other end is free end, is provided with at least one bending between two ends
Portion, and described kink be wedge angle bending or fillet bending, wherein, described man-made microstructure be each to
Property structure, and the most identical to the response characteristic of electromagnetic wave in all directions of the plane at place.
Resonator cavity the most according to claim 1, it is characterised in that described metamaterial sheet has multiple,
All metamaterial sheet are spaced setting in parallel to each other or surface links into an integrated entity in contact.
Resonator cavity the most according to claim 2, it is characterised in that be provided with bearing in described cavity,
Described metamaterial sheet is fixed on described bearing.
Resonator cavity the most according to claim 3, it is characterised in that described bearing is by electromagnetic wave transparent material
Make.
Resonator cavity the most according to claim 1, it is characterised in that described man-made microstructure is I-shaped
Shape or I-shaped derivative shape.
Resonator cavity the most according to claim 1, it is characterised in that the free end of described branch road connects
There is a line segment.
Resonator cavity the most according to claim 1, it is characterised in that the material of described substrate be pottery,
Politef, epoxy resin, ferroelectric material, ferrite material, ferromagnetic material or FR-4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110216460.4A CN103187609B (en) | 2011-07-29 | 2011-07-29 | A kind of resonator cavity |
| PCT/CN2011/083811 WO2013016920A1 (en) | 2011-07-29 | 2011-12-12 | Resonant cavity and filter having the resonant cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110216460.4A CN103187609B (en) | 2011-07-29 | 2011-07-29 | A kind of resonator cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103187609A CN103187609A (en) | 2013-07-03 |
| CN103187609B true CN103187609B (en) | 2016-08-31 |
Family
ID=48678671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110216460.4A Active CN103187609B (en) | 2011-07-29 | 2011-07-29 | A kind of resonator cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103187609B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425875A (en) * | 2013-08-30 | 2015-03-18 | 深圳光启创新技术有限公司 | Metamaterial antenna reinforcing device, antenna and antenna array |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1575529A (en) * | 2001-10-26 | 2005-02-02 | 香港科技大学 | Planar band gap materials |
| CN1787280A (en) * | 2004-12-09 | 2006-06-14 | 上海方盛信息科技有限责任公司 | Electromagnetic forbidden band structure material |
| CN101026257A (en) * | 2007-02-09 | 2007-08-29 | 哈尔滨工业大学 | Super-small resonant cavity |
| CN101276952A (en) * | 2008-04-15 | 2008-10-01 | 华南理工大学 | Mixed coupling coaxial cavity filter capable of controlling electromagnetism |
| CN202150533U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8054146B2 (en) * | 2005-11-14 | 2011-11-08 | Iowa State University Research Foundation, Inc. | Structures with negative index of refraction |
| CN202275915U (en) * | 2011-07-29 | 2012-06-13 | 深圳光启高等理工研究院 | Resonant cavity |
-
2011
- 2011-07-29 CN CN201110216460.4A patent/CN103187609B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1575529A (en) * | 2001-10-26 | 2005-02-02 | 香港科技大学 | Planar band gap materials |
| CN1787280A (en) * | 2004-12-09 | 2006-06-14 | 上海方盛信息科技有限责任公司 | Electromagnetic forbidden band structure material |
| CN101026257A (en) * | 2007-02-09 | 2007-08-29 | 哈尔滨工业大学 | Super-small resonant cavity |
| CN101276952A (en) * | 2008-04-15 | 2008-10-01 | 华南理工大学 | Mixed coupling coaxial cavity filter capable of controlling electromagnetism |
| CN202150533U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103187609A (en) | 2013-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202150533U (en) | Resonant cavity | |
| CN105390819B (en) | A kind of ultra wide band electromagnetism surpasses surface circular polarizer | |
| CN103296343B (en) | Filter | |
| CN202217774U (en) | Resonant cavity | |
| CN105186079B (en) | Double frequency-band waveguide filter | |
| CN202275917U (en) | Resonant cavity | |
| CN105406158A (en) | Dual-mode dielectric filter enabling frequency and coupling control based metal patches | |
| CN205194854U (en) | Super surperficial circular polarization ware of ultra wide band electromagnetism | |
| CN103401077A (en) | Miniaturized artificial magnetic conductor based on interdigital capacitor and application thereof | |
| US9166272B2 (en) | Artificial microstructure and metamaterial using the same | |
| CN103187609B (en) | A kind of resonator cavity | |
| CN202275915U (en) | Resonant cavity | |
| CN107171042A (en) | A kind of frequency-selective surfaces structure | |
| CN202434684U (en) | Resonant cavity | |
| CN205335401U (en) | Bimodulus dielectric filter based on metal paster controlled frequency and coupling | |
| CN103296371A (en) | Resonance cavity | |
| WO2012122814A1 (en) | Electromagnetically-transparent metamaterial | |
| CN103187604B (en) | A kind of wave filter | |
| CN102903999B (en) | A kind of resonant cavity | |
| CN202275901U (en) | Filter | |
| CN103000980B (en) | Resonant cavity | |
| CN102903995B (en) | Resonant cavity | |
| CN102938487B (en) | A kind of resonant cavity | |
| CN102800983B (en) | Novel meta-material | |
| CN102810760B (en) | Novel metamaterial |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |