CN202150531U - Resonant cavity - Google Patents
Resonant cavity Download PDFInfo
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- CN202150531U CN202150531U CN201120274408U CN201120274408U CN202150531U CN 202150531 U CN202150531 U CN 202150531U CN 201120274408 U CN201120274408 U CN 201120274408U CN 201120274408 U CN201120274408 U CN 201120274408U CN 202150531 U CN202150531 U CN 202150531U
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- resonant cavity
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Abstract
The utility model relates to a resonant cavity, comprising a cavity body and a harmonic oscillator arranged in the cavity body. The harmonic oscillator comprises at least one cuboid-shaped ultra-material, each ultra-material comprises at least one material sheet layer, each material sheet layer comprises a substrate and an artificial microstructure adhered to the substrate, and every two adjacent ultra-materials are overlapped together vertically after rotated 90 degrees horizontally. According to the technical scheme of the utility model, by changing the placement positions of the adjacent ultra-materials in the resonant cavity, the resonant frequency of the resonant cavity can be reduced to thereby improve the performance of the resonant cavity, and the miniaturization of the resonant cavity be conducive to be realized.
Description
Technical field
The utility model relates to wireless communication field, more particularly, relates to a kind of resonant cavity.
Background technology
Resonant cavity is the resonant element of under microwave frequency, working, and it comprises the cavity by conductive wall (or magnetic conducting wall) encirclement of an arbitrary shape, and can form the areas of dielectric of electromagnetic viscosimeter therein, and it has the characteristic that stores electromagnetic energy and select the certain frequency signal.Characterize in the S parameter of its performance, S11 is that the input reflection parameter is promptly imported return loss, and this value is more little good more; S21 is the forward transmitted parameter, gain just, and this value is good more near 0dB more.The resonance frequency of microwave cavity depends on the volume in this chamber; In general; The big more resonance frequency of resonant cavity volume is low more; Therefore it is high more that the resonant cavity volume reduces resonance frequency, how to be implemented in the resonance frequency that reduces resonant cavity under the situation that does not increase resonant cavity size and to have great importance for the miniaturization of resonant cavity.
The utility model content
The technical problem that the utility model will solve is to provide a kind of resonant cavity and this resonant cavity that under the situation that does not increase resonant cavity size, can reduce resonance frequency to have preferable performance.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of resonant cavity; Comprise cavity and the harmonic oscillator that is arranged in the said cavity; Said harmonic oscillator comprises the ultra material of at least one block length side bodily form; Said every block of ultra material comprises at least one sheet of material, and each sheet of material comprises substrate and attached to the artificial micro-structural on the said substrate, adjacent two horizontal directions are revolved successively and turn 90 degrees the back vertical pile together in the ultra material of said each piece.
In the preferred implementation of the utility model, said artificial micro-structural comprises four branch roads, arbitrary said branch road with any be pivot successively dextrorotation turn 90 degrees, 180 the degree and 270 the degree after overlap with other three branch roads respectively.
In the preferred implementation of the utility model, said four branch roads are intersection point altogether, said four branch roads with this intersection point be pivot successively dextrorotation turn 90 degrees, overlap with other three branch roads respectively behind 180 degree and 270 degree.
In the preferred implementation of the utility model, be provided with bearing in the said cavity, said harmonic oscillator is fixed on the said bearing.
In the preferred implementation of the utility model, an end of arbitrary said branch road of said artificial micro-structural is that the intersection point of said four branch roads, the other end are that free end is connected with a line segment.
In the preferred implementation of the utility model, the free end of arbitrary said branch road of said artificial micro-structural links to each other with the mid point of said line segment.
In the preferred implementation of the utility model, said branch road comprises at least one kink.
In the preferred implementation of the utility model, the kink of said artificial micro-structural is right angle, fillet or wedge angle.
In the preferred implementation of the utility model, the kink of said artificial micro-structural is a fillet.
In the preferred implementation of the utility model, the kink of said artificial micro-structural is a wedge angle.
Implement the technical scheme of the utility model; Has following beneficial effect: according to the technical scheme of the utility model; The resonance frequency that can reduce resonant cavity through the putting position that in resonant cavity, changes adjacent ultra material improves the performance of resonant cavity, helps realizing the miniaturization of resonant cavity.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of resonant cavity among the embodiment one;
Fig. 2 is the sketch map of arranging of the artificial micro-structural on the sheet of material in the ultra material 2 among Fig. 1;
Fig. 3 is the vertical view of 3 blocks of ultra materials among Fig. 1;
Fig. 4 is the performance diagram of the S11 parameter of the resonant cavity among Fig. 1;
Fig. 5 is the performance diagram of the S21 parameter of the resonant cavity among Fig. 1;
Fig. 6 is the structural representation of the ultra material horizontal direction of 3 in Fig. 1 resonant cavity when not rotating;
Fig. 7 is the performance diagram of the S11 parameter of the resonant cavity among Fig. 6;
Fig. 8 is the performance diagram of the S21 parameter of the resonant cavity among Fig. 6;
Fig. 9 is the structural representation of resonant cavity among the embodiment two;
Figure 10 to Figure 17 is the possible structural representation of artificial micro-structural.
Embodiment
Embodiment one
Present embodiment provides a kind of resonant cavity; As shown in Figure 1, comprise cavity 1, be arranged on the ultra material 2,3 and 4 of three block length side's bodily forms in the cavity 1, ultra material 2 comprises 8 sheet of material; Ultra material 3 comprises 2 sheet of material; Ultra material 4 comprises 2 sheet of material, and each sheet of material comprises substrate and attached to the artificial micro-structural on the substrate, substrate is selected ceramic material for use; The thickness of ceramic material is selected 1 millimeter for use, can certainly select macromolecular material, polytetrafluoroethylene, ferroelectric material, ferrite material, ferromagnetic material, SiO
2Perhaps material such as FR-4 is processed.Artificial micro-structural is the structure with certain geometrical shape that is made up of wire, and wire uses copper cash here, and selecting the cross section of copper cash is rectangle; Cross section is of a size of 0.1 millimeter * 0.018 millimeter; Wherein the live width of copper cash is 0.1 millimeter, and the thickness of copper cash is 0.018 millimeter, and metal wire also can use other metal wires such as silver-colored line certainly; The cross section of metal wire also can be cylindric, flat or other shapes, and its size also can be other size.In the present embodiment the structure of artificial micro-structural be mutually orthogonal two I-shaped, intersection point is positioned at two I-shaped mid points.
Can know that through the experiment detection resonance frequency of corresponding cavity is 10.63GHz when not placing ultra material in the cavity 1; The resonance frequency of this resonant cavity is 2.94GHz after placing ultra material as shown in Figure 1 in the cavity 1; Like Fig. 4 and shown in Figure 5, this resonant cavity corresponding parameters S11 is-38.079dB that S21 is-0.5929dB at the resonance point place.As shown in Figure 6; When three blocks in the cavity 1 ultra materials 2,3 and 4 horizontal directions were not rotated, the resonance frequency of corresponding resonant cavity was 3.029GHz, like Fig. 7 and shown in Figure 8; This resonant cavity corresponding parameters S11 is-17.986dB that S21 is-1.05dB at the resonance point place.S11 is that the input reflection parameter is promptly imported return loss, and this value is more little good more; S21 is the forward transmitted parameter, and this value is good more near 0dB more.Can know the performance that can reduce the resonance frequency raising resonant cavity of resonant cavity through the relative putting position that in resonant cavity, changes adjacent ultra material by experimental result, help realizing the miniaturization of resonant cavity.
Embodiment two
Present embodiment is as shown in Figure 9; With the difference of embodiment one be in cavity 1, to be provided with bearing 5, be positioned at ultra material 2 below, be used for support level three blocks of ultra materials of face on it; The cylindrical structure that bearing 5 adopts foam to process; Bearing 5 also can be other structures, as long as can support ultra material 2, bearing also can be processed by other Microwave-Transparent Materials; Microwave-Transparent Materials is meant wavelength at 1～1000mm, frequency in the electromagnetic transmitance of 0.3～300GHz scope can be inorganic material, macromolecular material, inorganic/polymer composite or diamond etc. greater than 70% material.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment; Above-mentioned embodiment only is schematically, rather than restrictive, and those of ordinary skill in the art is under the enlightenment of the utility model; Do not breaking away under the scope situation that the utility model aim and claim protect; Also can make a lot of distortion, can also be Figure 10 and shown in Figure 11 such as the shape of artificial micro-structural, said artificial micro-structural comprises four branch roads of common intersection point; At least one line segment that every branch road comprises T shape and intersects with the middle connecting line of T shape and divided equally by the middle connecting line of T shape, the length of said line segment can be the same or different.Artificial micro-structural can also be extremely shown in Figure 17 for Figure 12; Each artificial micro-structural comprises four branch roads of common intersection point; Every branch road with the intersection point be pivot successively dextrorotation turn 90 degrees, overlap with other three branch roads respectively behind 180 degree and 270 degree; Each branch road comprises at least one kink; Each kink can be right angle, fillet or wedge angle, and an end of each branch road is that the intersection point other end of four branch roads is a free end, and free end can unsettledly also can connect a line segment and link to each other with the mid point of line segment.Four branch roads of artificial micro-structural also can not be total to intersection point, planar put that dextrorotation successively turn 90 degrees, overlap with other three branch roads respectively behind 180 degree and 270 degree with respect in the space certain.For simplicity, the structure among Figure 10 to Figure 17 is all drawn with fine rule, and in fact, said structure all has certain width; These all belong within the protection of the utility model.
Claims (10)
1. resonant cavity; Comprise cavity and the harmonic oscillator that is arranged in the said cavity; It is characterized in that said harmonic oscillator comprises the ultra material of at least one block length side bodily form, said every block of ultra material comprises at least one sheet of material; Each sheet of material comprises substrate and attached to the artificial micro-structural on the said substrate, adjacent two horizontal directions are revolved successively and turn 90 degrees the back vertical pile together in the ultra material of said each piece.
2. resonant cavity according to claim 1 is characterized in that, said artificial micro-structural comprises four branch roads, arbitrary said branch road with any be pivot successively dextrorotation turn 90 degrees, 180 the degree and 270 the degree after overlap with other three branch roads respectively.
3. resonant cavity according to claim 2 is characterized in that, said four branch roads are intersection point altogether, said four branch roads with this intersection point be pivot successively dextrorotation turn 90 degrees, overlap with other three branch roads respectively behind 180 degree and 270 degree.
4. resonant cavity according to claim 1 is characterized in that, is provided with bearing in the said cavity, and said harmonic oscillator is fixed on the said bearing.
5. resonant cavity according to claim 3 is characterized in that, an end of arbitrary said branch road of said artificial micro-structural is that the intersection point of said four branch roads, the other end are that free end is connected with a line segment.
6. resonant cavity according to claim 5 is characterized in that, the free end of arbitrary said branch road of said artificial micro-structural links to each other with the mid point of said line segment.
7. according to the arbitrary described resonant cavity of claim 2 to 6, it is characterized in that said branch road comprises at least one kink.
8. resonant cavity according to claim 7 is characterized in that, the kink of said artificial micro-structural is right angle, fillet or wedge angle.
9. resonant cavity according to claim 7 is characterized in that, the kink of said artificial micro-structural is a fillet.
10. resonant cavity according to claim 7 is characterized in that, the kink of said artificial micro-structural is a wedge angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120274408U CN202150531U (en) | 2011-07-29 | 2011-07-29 | Resonant cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120274408U CN202150531U (en) | 2011-07-29 | 2011-07-29 | Resonant cavity |
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| Publication Number | Publication Date |
|---|---|
| CN202150531U true CN202150531U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120274408U Expired - Lifetime CN202150531U (en) | 2011-07-29 | 2011-07-29 | Resonant cavity |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593574A (en) * | 2012-02-29 | 2012-07-18 | 深圳光启创新技术有限公司 | Dielectric substrate and microstrip patch antenna using the same |
| CN102593563A (en) * | 2012-02-29 | 2012-07-18 | 深圳光启创新技术有限公司 | Waveguide device based on metamaterial |
| CN102738543A (en) * | 2012-06-05 | 2012-10-17 | 深圳光启创新技术有限公司 | Filter |
| CN102903995A (en) * | 2011-07-29 | 2013-01-30 | 深圳光启高等理工研究院 | Resonant cavity |
| CN103296340A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Low-pass filter |
| CN103296438A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Metamaterial |
| CN103367857A (en) * | 2012-03-31 | 2013-10-23 | 深圳光启创新技术有限公司 | Harmonic oscillator |
| CN103682648A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Horn antenna |
| CN103296480B (en) * | 2012-02-29 | 2017-02-15 | 深圳光启创新技术有限公司 | Metamaterial and antenna housing made of metamaterial |
-
2011
- 2011-07-29 CN CN201120274408U patent/CN202150531U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903995A (en) * | 2011-07-29 | 2013-01-30 | 深圳光启高等理工研究院 | Resonant cavity |
| CN102903995B (en) * | 2011-07-29 | 2015-04-22 | 深圳光启高等理工研究院 | Resonant cavity |
| CN102593574B (en) * | 2012-02-29 | 2015-07-01 | 深圳光启创新技术有限公司 | Dielectric substrate and microstrip patch antenna using the same |
| CN103296340A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Low-pass filter |
| CN103296438A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Metamaterial |
| CN102593563A (en) * | 2012-02-29 | 2012-07-18 | 深圳光启创新技术有限公司 | Waveguide device based on metamaterial |
| CN102593574A (en) * | 2012-02-29 | 2012-07-18 | 深圳光启创新技术有限公司 | Dielectric substrate and microstrip patch antenna using the same |
| CN103296480B (en) * | 2012-02-29 | 2017-02-15 | 深圳光启创新技术有限公司 | Metamaterial and antenna housing made of metamaterial |
| CN103296340B (en) * | 2012-02-29 | 2017-08-25 | 深圳光启创新技术有限公司 | A kind of low pass filter |
| CN103367857A (en) * | 2012-03-31 | 2013-10-23 | 深圳光启创新技术有限公司 | Harmonic oscillator |
| CN102738543A (en) * | 2012-06-05 | 2012-10-17 | 深圳光启创新技术有限公司 | Filter |
| CN102738543B (en) * | 2012-06-05 | 2017-09-19 | 深圳光启创新技术有限公司 | A kind of wave filter |
| CN103682648A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Horn antenna |
| CN103682648B (en) * | 2012-08-31 | 2018-02-23 | 深圳光启创新技术有限公司 | A kind of electromagnetic horn |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518057 2, building 9, hi tech middle 1, Nanshan District high tech Zone, Shenzhen, Guangdong. Co-patentee after: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Patentee after: Shenzhen Kuang-Chi Institute of Advanced Technology Address before: 518000 software building 9, hi tech middle 1, central high tech Zone, Shenzhen, Guangdong, China. Co-patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
|
| CX01 | Expiry of patent term |