CN106558747A - A kind of wave filter of resonator cavity and its composition - Google Patents
A kind of wave filter of resonator cavity and its composition Download PDFInfo
- Publication number
- CN106558747A CN106558747A CN201510627422.6A CN201510627422A CN106558747A CN 106558747 A CN106558747 A CN 106558747A CN 201510627422 A CN201510627422 A CN 201510627422A CN 106558747 A CN106558747 A CN 106558747A
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- millimeters
- dielectric resonance
- resonance block
- air
- resonator cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
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Abstract
The invention discloses the wave filter of a kind of resonator cavity and its composition, the present invention is by being filled in resonance intracavity by the dielectric resonance block of high-k, while electrical characteristic is filtered in the case where similar frequency bands are realized, the volume of resonator cavity is reduced significantly, and the present invention can also complete the tuning to wave filter by the shape and size of adjustment dielectric resonance block, air tuning slot, so as to realize the miniaturization of wave filter.
Description
Technical field
The present invention relates to communication technical field, more particularly to the wave filter of a kind of resonator cavity and its composition.
Background technology
The structure of existing Metal cavity as shown in figure 1, the resonator cavity mainly by metallic shielding structure 101,
Air dielectric chamber 102, metal resonant rod 103 and tuning screw 104 are constituted.In normal work, wave filter
Cascaded by multiple resonator cavitys, electromagnetic field is transmitted in the air dielectric of resonance intracavity, be equivalent to LC wave filter electricity
Road, is presented low-impedance transmission characteristic to the signal of useful frequency range, so as to complete filter function.Wherein adjust empty
The height in gas medium chamber 102, the depth of the height and tuning screw 104 of metal resonant rod 103 is completing
The debugging of filter resonance frequency.
Due to being limited to the characteristic that electromagnetic wave is transmitted in air low-k medium, when resonant frequency it is relatively low
When, wavelength is longer, and according to microwave theory, the size of air chamber is closely related with wavelength, is fixed value, from
And determining that the size of wave filter air chamber cannot change substantially so that whole wave filter volume is bigger than normal, so as to
Larger space is taken in RRU systems.
The content of the invention
In view of above-mentioned analysis, the present invention is intended to provide the wave filter of a kind of resonator cavity and its composition, to solve
The certainly relatively large problem of resonator cavity volume in prior art.
To solve the above problems, the present invention is mainly achieved through the following technical solutions：
One aspect of the present invention provides a kind of resonator cavity, and the resonator cavity includes：Dielectric resonance block and air tuning
Groove and the metallic shielding structure of rooved face is tuned located at the dielectric resonance block and the air, wherein,
The air tuning slot be from the dielectric resonance block groove from side to the dielectric resonance block inner recess
Body；
The size of the entirety of dielectric resonance block, the air described in HFSS computed in software are emulated by high-frequency structure
The position of the size of tuning slot and the air tuning slot on the dielectric resonance block, so that the resonance
Chamber is filtered to the frequency beyond predeterminated frequency.
Preferably, the dielectric resonance block is shaped as cylinder, cuboid, square or polygonal body.
Preferably, when the dielectric resonance block is cylinder, a height of 0.1-50 millis of the dielectric resonance block
Rice, radius are 0.5-50 millimeters；
When the dielectric resonance block is cuboid, a height of 0.1-50 millimeters of the dielectric resonance block are a length of
0.5-50 millimeters, a width of 0.5-50 millimeters；
When the dielectric resonance block is square, a height of 0.1-50 millimeters of the dielectric resonance block are a length of
0.5-50 millimeters, a width of 0.5-50 millimeters.
Preferably, the dielectric constant of the dielectric resonance block is more than or equal to 30.
Preferably, the air tuning slot is shaped as cylinder, cuboid, square or polygonal body.
Preferably, when the air tuning slot is cylinder, a height of 0.1-50 millis of the air tuning slot
Rice, radius are 0.5-5 millimeters；
When the air tuning slot is cuboid, a height of 0.1-50 millimeters of the air tuning slot are a length of
0.5-5 millimeters, a width of 0.5-5 millimeters；
When the air tuning slot is square, a height of 0.1-50 millimeters of the air tuning slot are a length of
0.5-5 millimeters, a width of 0.5-5 millimeters.
Preferably, the metallic shielding structure is to be arranged on the medium by plating, spraying, attaching mode
Shielding material on resonance block outer surface and the air tuning slot inner surface.
Another aspect of the present invention provides a kind of wave filter, and the wave filter includes above-mentioned humorous described in any one
Shake chamber.
The present invention has the beneficial effect that：
Relative to the resonator cavity of traditional air dielectric, the present invention is by by the dielectric resonance block of high-k
Resonance intracavity is filled in, and while electrical characteristic being filtered in the case where similar frequency bands are realized, significantly reduces resonance
The volume in chamber, and the present invention can also be by adjusting dielectric resonance block, the shape and size of air tuning slot
The tuning to wave filter is completed, so as to realize the miniaturization of wave filter.
Other features and advantages of the present invention will be illustrated in the following description, and partial from description
In become apparent, or by implement the present invention and understand.The purpose of the present invention and other advantages can be led to
Cross specifically noted structure in the description, claims and accompanying drawing write to realize and obtain.
Description of the drawings
Fig. 1 is the structural representation of resonator cavity of the prior art；
Cross section structure diagrams of the Fig. 2 for a kind of resonator cavity of the embodiment of the present invention；
Overall structure diagrams of the Fig. 3 for another kind of resonator cavity of the embodiment of the present invention；
Overall structure diagrams of the Fig. 4 for another resonator cavity of the embodiment of the present invention；
Overall structure diagrams of the Fig. 5 for another resonator cavity again of the embodiment of the present invention；
Overall structure diagrams of the Fig. 6 for also another resonator cavity of the embodiment of the present invention；
The overall structure diagrams of again going back another resonator cavity of the Fig. 7 for the embodiment of the present invention；
Overall structure diagrams of the Fig. 8 for the yet a further resonator cavity of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings specifically describing the preferred embodiments of the present invention, wherein, accompanying drawing constitutes the application one
Part, and be used for together with embodiments of the present invention explaining the principle of the present invention.For purpose of clarity and simplification,
When which may make subject of the present invention smudgy, will omit in device described herein known function and
Structure is illustrated in detail.
The main purpose of the embodiment of the present invention is to provide a kind of resonator cavity and wave filter, and the present invention is by by Gao Jie
The dielectric resonance block of electric constant is filled in resonance intracavity, while filtering electrical characteristic in the case where similar frequency bands are realized,
The volume of resonator cavity is significantly reduced, and the present invention can also be adjusted by adjusting dielectric resonance block, air
The shape and size of humorous groove complete the tuning to wave filter, so as to realize the miniaturization of wave filter, below it is just logical
Cross several specific embodiments to be described in detail technical scheme.
Resonator cavity embodiment
A kind of resonator cavity is embodiments provided, referring to Fig. 2, the resonator cavity includes：Dielectric resonance block
202 and air tuning slot 203, and it is located at the dielectric resonance block 202 and 203 table of air tuning slot
The metallic shielding structure 201 in face, wherein, the air tuning slot 203 is by the dielectric resonance block 202
Cell body of the side to 202 inner recess of dielectric resonance block；
According to high-frequency structure emulates (High Frequency Structure Simulator, HFSS) calculating
The tuning of the size of the entirety of dielectric resonance block 202, the size of the air tuning slot 203 and the air
Position of the groove 203 on the dielectric resonance block 202, so that the resonator cavity is to the frequency beyond predeterminated frequency
Rate is filtered.
Relative to the resonator cavity of traditional air dielectric, the present invention is by by the dielectric resonance block of high-k
202 are filled in resonance intracavity, while filtering electrical characteristic in the case where similar frequency bands are realized, significantly reduce humorous
Shake the volume in chamber, and the present invention can also be by adjusting the dielectric resonance block 202, shape of air tuning slot 203
Shape and size complete the tuning to wave filter, so as to realize the miniaturization of wave filter.
When being propagated in high-k material due to electromagnetic wave, its wavelength can shorten, so the present invention is real
Example is applied using the medium of definite shape to replace being filled in the air of resonance intracavity, it is whole so as to reduce resonator cavity
Body volume.
When being embodied as, the embodiment of the present invention emulates certain to be filtered of HFSS computed in software by high-frequency structure
Frequency (or the frequency beyond certain frequency to be filtered), required dielectric resonance block 202 and air tuning
The size of groove 203, and position of the air tuning slot 203 on the dielectric resonance block 202, and
In the resonator cavity as obtained in above-mentioned requirements, to realize filtering to above-mentioned frequency or the frequency beyond frequency.
Specifically, in the embodiment of the present invention volume of dielectric resonance block 202 be reduction with frequency filtering and
Increase.
The size of the resonator cavity described in the embodiment of the present invention is adjustable, so as to realize that large-scale frequency is filtered.
Dielectric resonance block 202 described in the embodiment of the present invention is shaped as cylinder, cuboid, square, many
Side body or other irregular asymmetric profiled shapes.When the dielectric resonance block 202 is cylinder,
A height of 0.1-50 millimeters of the dielectric resonance block 202, radius are 0.5-50 millimeters；When the dielectric resonance
When block 202 is cuboid, a height of 0.1-50 millimeters of the dielectric resonance block 202, a length of 0.5-50 millimeters,
A width of 0.5-50 millimeters；When the dielectric resonance block 202 is square, the dielectric resonance block 202
A height of 0.1-50 millimeters, a length of 0.5-50 millimeters, a width of 0.5-50 millimeters.
For high-k, dielectric constant is more than or equal to the dielectric resonance block 202 adopted by the embodiment of the present invention
30, the composition of dielectric resonance block 202 can be any, as long as reaching above-mentioned dielectric constant.
Air tuning slot 203 described in the embodiment of the present invention is shaped as cylinder, cuboid, square, many
Side body or other irregular asymmetric profiled shapes.When the air tuning slot 203 is cylinder,
A height of 0.1-50 millimeters of the air tuning slot 203, radius are 0.5-5 millimeters；When the air tuning slot
203 be cuboid when, a height of 0.1-50 millimeters of the air tuning slot 203, a length of 0.5-5 millimeters are wide
For 0.5-5 millimeters；When the air tuning slot 203 be square when, the air tuning slot 203 it is a height of
0.1-50 millimeters, a length of 0.5-5 millimeters, a width of 0.5-5 millimeters.
Fig. 3-Fig. 8 is the overall structure diagram of the different resonator cavity of the embodiment of the present invention, as shown in figures 3-8,
The shape of the dielectric resonance block 202 and air resonance groove of the embodiment of the present invention can all be cylinder, it is also possible to
It is that dielectric resonance block 202 is cuboid, and air resonance groove is cylinder, i.e. Jie of the embodiment of the present invention
The shape of matter resonance block 202 and air resonance groove can with inconsistent, and the surface of air resonance groove without the need for
202 surface of dielectric resonance block keeps strict parallel or vertical relation, for example, when the air resonance groove is
During rectangular shape, air resonance groove direction can be transformed to rotate 45 degree vertically.
Also, the dielectric resonance block 202 of the embodiment of the present invention has certain space with air tuning slot 203
Position relationship, specifically can be according to the cymometer beyond certain frequency to be filtered or certain frequency to be filtered
Calculate and obtain.
Metallic shielding structure 201 described in the embodiment of the present invention is to be arranged on by plating, spraying, attaching method
Shielding material on 202 outer surface of dielectric resonance block and 203 inner surface of air tuning slot.
Dielectric resonance block 202 of the embodiment of the present invention using high-k, is filled with dielectric resonance block 202
The medium of definite shape, the air resonance groove of the present invention are located at an outer surface of dielectric resonance block 202, from
The appearance of dielectric resonance block 202 forms a cell body towards its inner recess, by plating, spraying, patch
Subsidiary formula method is arranged on shielding material on 203 inner surface of 202 outer surface of dielectric resonance block and air tuning slot,
Above-mentioned metallic shielding structure 201 is obtained.
It should be noted that the embodiment of the present invention is previously according to certain to be filtered frequency, or to filter
Certain frequency beyond frequency, come the material of calculation medium resonance block 202, dielectric resonance block 202 and sky
The size of gas tuning slot 203, and position of the air tuning slot 203 on the dielectric resonance block 202
Put, and in the resonator cavity as obtained in above-mentioned requirements, and make electromagnetic wave in the dielectric resonance block 202 of resonator cavity
After portion's transmission, by filtering for above-mentioned frequency or the frequency beyond frequency.
Each structure of the resonator cavity described in the embodiment of the present invention will be said with a specific example below
It is bright：
During frequency beyond 1800MHz is filtered, HFSS computed in software is emulated by high-frequency structure and is situated between
A length of 17 millimeters, a width of 34 millimeters, a height of 7 millimeters of matter resonance block 202, air tuning slot 203 is
Cylinder, and at the center of dielectric resonance block 202, specifically, the radius of air tuning slot 203
For 3 millimeters, 0.5 millimeter of a high position.
The embodiment of the present invention by the dielectric resonance block 202 of high-k is filled in resonance intracavity, in reality
While electrical characteristic is filtered under existing similar frequency bands, the volume of resonator cavity, and the present invention are significantly reduced
Can also be completed to wave filter by adjusting the shape and size of dielectric resonance block 202, air tuning slot 203
Tuning, so as to realize the miniaturization of wave filter.
Filter embodiment
A kind of wave filter is embodiments provided, the wave filter includes appointing described in resonator cavity embodiment
Anticipate a kind of resonator cavity.
Specifically, the embodiment of the present invention obtains wave filter by above-mentioned multiple resonator cavitys are carried out cascade, makes
Electromagnetic wave filter internal transmission after, by filtering for the frequency beyond the frequency of certain or certain frequency.
Related content in the embodiment of the present invention can refer to resonator cavity embodiment part and be understood that here is no longer
Repeat.
The present invention can at least obtain following beneficial effect：
The embodiment of the present invention is realizing phase by the dielectric resonance block of high-k is filled in resonance intracavity
While with electrical characteristic being filtered under frequency range, significantly reduce the volume of resonator cavity, and the present invention can also
Enough shape and size by adjustment dielectric resonance block, air tuning slot complete the tuning to wave filter, so as to
Realize the miniaturization of wave filter.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention not office
Be limited to this, any those familiar with the art the invention discloses technical scope in, can be easily
The change or replacement expected, should all be included within the scope of the present invention.Therefore, protection of the invention
Scope should be defined by the protection domain of claims.
Claims (8)
1. a kind of resonator cavity, it is characterised in that include：Dielectric resonance block and air tuning slot and it is located at
The dielectric resonance block and the air tune the metallic shielding structure of rooved face, wherein, the air tuning
Groove be from the dielectric resonance block cell body from side to the dielectric resonance block inner recess；
The size of the entirety of dielectric resonance block, the air described in HFSS computed in software are emulated by high-frequency structure
The position of the size of tuning slot and the air tuning slot on the dielectric resonance block, so that the resonance
Chamber is filtered to the frequency beyond predeterminated frequency.
2. resonator cavity according to claim 1, it is characterised in that
The dielectric resonance block is shaped as cylinder, cuboid, square or polygonal body.
3. resonator cavity according to claim 2, it is characterised in that
When the dielectric resonance block is cylinder, a height of 0.1-50 millimeters of the dielectric resonance block, radius
For 0.5-50 millimeters；
When the dielectric resonance block is cuboid, a height of 0.1-50 millimeters of the dielectric resonance block are a length of
0.5-50 millimeters, a width of 0.5-50 millimeters；
When the dielectric resonance block is square, a height of 0.1-50 millimeters of the dielectric resonance block are a length of
0.5-50 millimeters, a width of 0.5-50 millimeters.
4. resonator cavity according to claim 1, it is characterised in that
The dielectric constant of the dielectric resonance block is more than or equal to 30.
5. the resonator cavity according to any one in claim 1-4, it is characterised in that
The air tuning slot is shaped as cylinder, cuboid, square or polygonal body.
6. resonator cavity according to claim 5, it is characterised in that
When the air tuning slot is cylinder, a height of 0.1-50 millimeters of the air tuning slot, radius
For 0.5-5 millimeters；
When the air tuning slot is cuboid, a height of 0.1-50 millimeters of the air tuning slot are a length of
0.5-5 millimeters, a width of 0.5-5 millimeters；
When the air tuning slot is square, a height of 0.1-50 millimeters of the air tuning slot are a length of
0.5-5 millimeters, a width of 0.5-5 millimeters.
7. the resonator cavity according to any one in claim 1-4, it is characterised in that
The metallic shielding structure is to be arranged on outside the dielectric resonance block by plating, spraying, attaching mode
Shielding material on surface and the air tuning slot inner surface.
8. a kind of wave filter, it is characterised in that the wave filter is included in claim 1-7 described in any one
Resonator cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627422.6A CN106558747A (en) | 2015-09-28 | 2015-09-28 | A kind of wave filter of resonator cavity and its composition |
| PCT/CN2016/083041 WO2017054474A1 (en) | 2015-09-28 | 2016-05-23 | Resonance cavity and filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627422.6A CN106558747A (en) | 2015-09-28 | 2015-09-28 | A kind of wave filter of resonator cavity and its composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106558747A true CN106558747A (en) | 2017-04-05 |
Family
ID=58416547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510627422.6A Withdrawn CN106558747A (en) | 2015-09-28 | 2015-09-28 | A kind of wave filter of resonator cavity and its composition |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106558747A (en) |
| WO (1) | WO2017054474A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238015A (en) * | 2019-05-10 | 2019-09-17 | 深圳市信维通信股份有限公司 | A kind of hole slot inner wall metallization process of device architecture |
| CN111384569A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric resonator, dielectric filter and communication equipment |
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| EP1056151B1 (en) * | 1999-05-25 | 2005-09-07 | Murata Manufacturing Co., Ltd. | Dielectric resonator, filter, duplexer, oscillator and communication apparatus |
| CN101933192A (en) * | 2007-12-10 | 2010-12-29 | Cts公司 | RF monoblock filter with recessed top pattern and cavity providing improved attenuation |
| CN201898192U (en) * | 2010-10-13 | 2011-07-13 | 浙江嘉康电子股份有限公司 | TEM (transverse electric and magnetic) mode coaxial dielectric ceramic resonator |
| CN202308231U (en) * | 2011-11-04 | 2012-07-04 | 浙江嘉康电子股份有限公司 | TEM die coaxial medium ceramic filter |
| CN104364962A (en) * | 2013-06-04 | 2015-02-18 | 华为技术有限公司 | Dielectric resonator and dielectric filter, transceiver and base station using same |
| CN204668436U (en) * | 2015-06-10 | 2015-09-23 | 苏州东山精密制造股份有限公司 | Cavity low pass filter |
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|---|---|---|---|---|
| FR2994028B1 (en) * | 2012-07-27 | 2015-06-19 | Thales Sa | FREQUENCY TUNING BAND FILTER FOR MICROWAVE WAVE |
| CN103855455B (en) * | 2012-11-30 | 2018-05-22 | 深圳光启创新技术有限公司 | A kind of harmonic oscillator, resonator, filtering device and electromagnetic wave device |
| CN104716411A (en) * | 2013-12-17 | 2015-06-17 | 天津市康丰达石油工程有限公司 | Cavity filter with small size |
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2015
- 2015-09-28 CN CN201510627422.6A patent/CN106558747A/en not_active Withdrawn
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2016
- 2016-05-23 WO PCT/CN2016/083041 patent/WO2017054474A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1056151B1 (en) * | 1999-05-25 | 2005-09-07 | Murata Manufacturing Co., Ltd. | Dielectric resonator, filter, duplexer, oscillator and communication apparatus |
| CN101933192A (en) * | 2007-12-10 | 2010-12-29 | Cts公司 | RF monoblock filter with recessed top pattern and cavity providing improved attenuation |
| CN201898192U (en) * | 2010-10-13 | 2011-07-13 | 浙江嘉康电子股份有限公司 | TEM (transverse electric and magnetic) mode coaxial dielectric ceramic resonator |
| CN202308231U (en) * | 2011-11-04 | 2012-07-04 | 浙江嘉康电子股份有限公司 | TEM die coaxial medium ceramic filter |
| CN104364962A (en) * | 2013-06-04 | 2015-02-18 | 华为技术有限公司 | Dielectric resonator and dielectric filter, transceiver and base station using same |
| CN204668436U (en) * | 2015-06-10 | 2015-09-23 | 苏州东山精密制造股份有限公司 | Cavity low pass filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384569A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric resonator, dielectric filter and communication equipment |
| CN110238015A (en) * | 2019-05-10 | 2019-09-17 | 深圳市信维通信股份有限公司 | A kind of hole slot inner wall metallization process of device architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017054474A1 (en) | 2017-04-06 |
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