CN103311633B - Resonator tuning structure - Google Patents
Resonator tuning structure Download PDFInfo
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- CN103311633B CN103311633B CN201210067857.6A CN201210067857A CN103311633B CN 103311633 B CN103311633 B CN 103311633B CN 201210067857 A CN201210067857 A CN 201210067857A CN 103311633 B CN103311633 B CN 103311633B
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Abstract
The invention discloses a resonator tuning structure, which comprises at least one metal cavity, a conductor belt, a medium substrate, a support body and a medium body, wherein the support body extends into the metal cavity from the outer side of the metal cavity; the medium body is arranged at the top end, which extends into the metal cavity, of the support body. The resonator tuning structure disclosed by the invention has the characteristics of simpleness in processing, flexible structure, convenience in use and sensitive tuning, and can be widely used for electronic systems of each microwave waveband, especially for the military and civil fields, such as radars, missile guidance and communication.
Description
Technical field
The present invention relates to a kind of resonator tuning structure, specifically, relate to a kind of dielectric resonant chamber tuning structure regulated for microwave device characteristic.
Background technology
Microwave device is carried out tuning in, usually can use tuning screw.But the tuning sensitivity of common tuning screw is limited, and often there is tuning screw and by the very little situation in the gap between dielectric resonant chamber tuning structure, which increase tuning difficulty, and this situation also can bring stability problem.In the devices such as microstrip structure, dielectric resonant chamber and dielectric oscillator, because energy of electromagnetic field in these devices concentrates in device, make the impact on electromagnetic field of general tuning screw very little, tuning poor effect.
Summary of the invention
Major advantage of the present invention, utilizes and is positioned at the very high dielectric material of tuning screw front end, dielectric constant or permeability, changes the magnetic distribution near microwave device significantly, thus regulates the characteristic of microwave device better.
The object of the present invention is to provide that a kind of structure is simple, processing is simple, debug dielectric resonant chamber tuning structure easily.
For achieving the above object, the technical solution used in the present invention is: a kind of resonator tuning structure, comprises metal cavitg and the tuning supporter that stretches into from metal cavitg in metal cavitg and be arranged on the tuning dielectric that tuning supporter extend into one end in metal cavitg; Also comprise with the dielectric substrate that is connected of metal cavitg inwall and the conductor belt resonant cavity that is connected with dielectric substrate, tuning dielectric is positioned at the top of resonant cavity.
Described tuning supporter is column structure; The interface of described tuning dielectric and tuning supporter is plane.
Also be provided with foil between described tuning dielectric and tuning supporter, and tuning dielectric, foil, interface between tuning supporter three are plane parallel to each other; Described tuning dielectric is also provided with foil away from the one side of tuning supporter.
Described tuning supporter is provided with screw thread in the one end away from metal cavitg inside; Tuning supporter is also provided with fixture in the one end away from metal cavitg inside, and described tuning supporter is coordinated with fixture by screw thread, makes the up mobile adjustment in metal cavitg of tuning supporter, and is fixed by fixture.
Between described tuning supporter and tuning dielectric, be also provided with cylindrical metal platform, the linkage interface of described cylindrical metal platform and tuning supporter, tuning dielectric is plane.
Described metal cavitg is the cavity of opening or closed cavity.
The dielectric constant of described tuning dielectric is or/and permeability is greater than 30.
Described tuning supporter is dielectric material or the conductor that dielectric constant is less than 3.
Described resonant cavity is positioned at conductor belt side, and there is gap between resonant cavity and conductor belt; Resonant cavity is that bottom to be connected with dielectric substrate and relative dielectric constant or the relative permeability Arbitrarily shaped dielectric object body that is greater than 10.
Described resonant cavity is thin conductor sheet.
In the present invention, the present invention arranges tuning dielectric by extending into one end in metal cavitg at tuning supporter.By the effect of tuning dielectric, its magnetic distribution can be changed, thus the characteristic of microwave device is regulated.General aerial electromagnetic wavelength ratio is comparatively large, after adding tuning dielectric, changes electromagnetic transmission wavelength.Can change its magnetic distribution with this, very large on the impact of electromagnetic field, tuning effect is fine, increases the sensitivity regulated.Resonant cavity plays resonance effect at some Frequency point, and dielectric substrate possesses and does supporting role to resonant cavity and conductor belt, and resonant cavity and conductor belt resonant cavity form coupled structure, conductor belt Energy Coupling to resonant cavity.
Tuning supporter is provided with column structure to facilitate processing and facilitate tuning supporter up-down adjustment, makes to change the impact on electromagnetic field at any time.
Be plane parallel to each other by the interface between tuning dielectric, foil, tuning supporter three.Simple, convenient batch production of structural design of they three with this.Interface between three is arranged to plane parallel to each other simultaneously, the connection between they three can be facilitated.Reduce process time and difficulty of processing.
Due to the standardized product that the tuning dielectric generally adopted is on existing market, therefore the tuning dielectric of general standard generally welds for the convenience of the users, its one end is all provided with foil, in order to be arranged to electric capacity on this basis, the present invention is special is also provided with foil at tuning dielectric away from the one side of tuning supporter, the two ends up and down of tuning like this dielectric are provided with foil, form capacitance body structure with this, thus increase the impact effect to electromagnetic field.The further sensitivity increasing adjustment.
The tuning supporter that the present invention is arranged is coordinated with fixture by screw thread, by rotary fixing device, tuning supporter can be made to move up and down, convenient to electromagnetic subjectivity adjustment artificially.
When tuning supporter cross section is smaller time, time tuning dielectric is larger, now, tuning supporter is wanted to weld with tuning dielectric, therefore certain difficulty is had, for this reason, the present invention spy is provided with cylindrical metal platform between tuning supporter and tuning dielectric, make tuning supporter together with tuning medium physical efficiency rapid welding by the form of intermediate, when electric property of the present invention can not be affected, increase cylindrical metal platform, can conveniently connect, increase production efficiency.
In time using Antenna Design field, metal cavitg is adopted to be the cavity of opening; In time using filter, coupler field, metal cavitg is adopted to be closed cavity.
The dielectric constant of described tuning dielectric is or/and permeability is greater than 30.
Through repeatedly contrast experiment's Data Comparison effect and theory deduction, when tuning supporter be conductor or and relative dielectric constant or and the relative permeability dielectric material that is less than 3.And when tuning dielectric relative dielectric constant or and relative permeability is greater than 30 time, can more effectively change microwave device built-in field distribution.Thus the adjustment more effectively realized microwave device.
When adopt relative dielectric constant or and the material of relative permeability smaller tuning dielectric time, DeGrain of the present invention, there is no the meaning of what reality, therefore, the present invention adopt relative dielectric constant or and the relative permeability tuning dielectric that is greater than 30, its effect is more obvious.
The operation principle of resonant cavity tuning structure is: insert metallic object or medium in microwave device inside, can change its magnetic distribution, thus regulate the characteristic of microwave device.Adopt the resonant cavity tuning structure with tuning medium (dielectric constant is or/and permeability is greater than 30), more effectively can change the distribution of microwave device built-in field.Thus the adjustment that can sensitiveer, more effectively realize microwave device.
The invention has the advantages that, processing is simple, flexible structure, easy to use, tuning sensitive.Tuning structure of the present invention is expected to be widely used in various microwave device, particularly the military affairs such as radar, missile guidance, communication and civil area.
Fig. 1 is the front view schematic diagram of the embodiment of the present invention one.
Fig. 2 is the A-A generalized section of the embodiment of the present invention one.
Fig. 3 is the front view schematic diagram of the embodiment of the present invention two.
Fig. 4 is the A-A generalized section of the embodiment of the present invention two.
Label in figure is expressed as:
1-metal cavitg; The tuning supporter of 2-; The tuning dielectric of 3-; 4-foil; 5-cylindrical metal platform; 6-fixture; 7-resonant cavity; 8-dielectric substrate; 9-conductor belt.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment one
As shown in Figure 1, 2, a kind of resonator tuning structure, comprises metal cavitg 1 and from metal cavitg 1, stretches into the tuning supporter 2 in metal cavitg 1 and be arranged on the tuning dielectric 3 that tuning supporter 2 extend into one end in metal cavitg 1; Also comprise with the dielectric substrate 8 that is connected of metal cavitg 1 inwall and conductor belt 9 resonant cavity 7 that is connected with dielectric substrate 8, tuning dielectric 3 is positioned at the top of resonant cavity 7.Tuning supporter 2 is column structure; Tuning dielectric 3 is plane with the interface of tuning supporter 2.Also be provided with foil 4 between tuning dielectric 3 and tuning supporter 2, and tuning dielectric 3, foil 4, interface between tuning supporter 2 three are plane parallel to each other; Tuning dielectric 3 is also provided with foil 4 away from the one side of tuning supporter 2.Tuning supporter 2 is provided with screw thread in the one end away from metal cavitg 1 inside; Tuning supporter 2 is also provided with fixture 6 in the one end away from metal cavitg 1 inside, and tuning supporter 2 is coordinated with fixture 6 by screw thread, makes the up mobile adjustment in metal cavitg 1 of tuning supporter 2, and is fixed by fixture 6.Between tuning supporter 2 and tuning dielectric 3, be also provided with cylindrical metal platform 5, cylindrical metal platform 5 is plane with the linkage interface of tuning supporter 2, tuning dielectric 3.Metal cavitg 1 is the cavity of opening or closed cavity.The dielectric constant of tuning dielectric 3 is or/and permeability is greater than 30.Tuning supporter 2 is less than dielectric material or the conductor of 3 for dielectric constant.Resonant cavity 7 is positioned at conductor belt 9 side, and there is gap between resonant cavity 7 and conductor belt 9; Resonant cavity 7 is that bottom is connected with dielectric substrate 8 and relative dielectric constant or the relative permeability Arbitrarily shaped dielectric object body that is greater than 10.Resonant cavity 7 is thin conductor sheet.
As Fig. 1,2, the present invention includes metal cavitg 1, tuning supporter 2, tuning dielectric 3, foil 4, cylindrical metal platform 5, fixture 6, resonant cavity 7, dielectric substrate 8 and conductor belt 9.It is inner that tuning supporter 2 stretches into metal cavitg 1 by metal cavitg 1 outside, and fixed by fixture 6 in outside.The top stretching into metal cavitg 1 part at tuning supporter 2 is connected with cylindrical metal platform 5, foil 4 is connected with away from the end face of supporter 2 at cylindrical metal platform 5, foil 4 is connected with tuning dielectric 3 away from the end face of cylindrical metal platform 5, and tuning dielectric 3 is connected with another sheet foil 4 away from the end face of foil 4.
Tuning supporter 2, tuning dielectric 3, foil 4, cylindrical metal platform 5, fixture 6 are all column structure, and it is inner that axis points to metal cavitg 1 from metal cavitg 1 outside, and axis all on the same line, and joint face is plane.
Tuning supporter 2 is the dielectric material that conductor or dielectric constant are less than 5.
Relative dielectric constant or the relative permeability of tuning dielectric 3 are greater than 30.
Resonant cavity 7 is the dielectric that relative dielectric constant or relative permeability are greater than 10.
Dielectric substrate 8 is less than the dielectric of 5 for relative dielectric constant.
Resonant cavity 7, dielectric substrate 8 and conductor belt 9 are positioned at the below of dielectric 3.
Resonant cavity 7, conductor belt 9 are positioned at the top of dielectric substrate 8.
Embodiment two
As shown in Figure 3,4, the difference of this embodiment embodiment one is:
Resonant cavity 7 is foil.
We give the embodiment of two resonator tuning structures here.Implementation of the present invention is hard-core.Such as, can determine on tuning structure, whether use cylindrical metal platform 5 and foil 4 according to actual conditions, can by the fixture 6 of various structure, and the resonant cavity 7 of various different materials and the conductor belt 9 etc. of different structure.This resonant cavity tuning structure also can as part for forming other filtering device and microwave components.
Claims (8)
1. a resonator tuning structure, is characterized in that: comprise metal cavitg (1), the tuning supporter (2) stretched into from metal cavitg (1) in metal cavitg (1), be arranged on the tuning dielectric (3) that tuning supporter (2) extend into metal cavitg (1) interior one end; Also comprise the dielectric substrate (8) be connected with metal cavitg (1) inwall and conductor belt (9) resonant cavity (7) be connected with dielectric substrate (8), tuning dielectric (3) is positioned at the top of resonant cavity (7); Also be provided with foil (4) between described tuning dielectric (3) and tuning supporter (2), and tuning dielectric (3), foil (4), interface between tuning supporter (2) three are plane parallel to each other; Described tuning dielectric (3) is also provided with foil (4) away from the one side of tuning supporter (2).
2. a kind of resonator tuning structure according to claim 1, is characterized in that, described tuning supporter (2) is provided with screw thread in one end inner away from metal cavitg (1); Tuning supporter (2) is also provided with fixture (6) in one end inner away from metal cavitg (1), described tuning supporter (2) is coordinated with fixture (6) by screw thread, make tuning supporter (2) up mobile adjustment in metal cavitg (1), and fixed by fixture (6).
3. a kind of resonator tuning structure according to claim 1, it is characterized in that, between described tuning supporter (2) and tuning dielectric (3), be also provided with cylindrical metal platform (5), described cylindrical metal platform (5) is plane with the linkage interface of tuning supporter (2), tuning dielectric (3).
4. according to a kind of resonator tuning structure in claim 1-3 described in any one, it is characterized in that, the cavity that described metal cavitg (1) is opening or closed cavity.
5. according to a kind of resonator tuning structure in claim 1-3 described in any one, it is characterized in that, the dielectric constant of described tuning dielectric (3) is or/and permeability is greater than 30.
6. according to a kind of resonator tuning structure in claim 1-3 described in any one, it is characterized in that, dielectric material or conductor that described tuning supporter (2) is less than 3 for dielectric constant.
7. according to a kind of resonator tuning structure in claim 1-3 described in any one, it is characterized in that, described resonant cavity (7) is positioned at conductor belt (9) side, and there is gap between resonant cavity (7) and conductor belt (9); Resonant cavity (7) to be connected with dielectric substrate (8) and relative dielectric constant or the relative permeability Arbitrarily shaped dielectric object body that is greater than 10 for bottom.
8. according to a kind of resonator tuning structure in claim 1-3 described in any one, it is characterized in that, described resonant cavity (7) is thin conductor sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210067857.6A CN103311633B (en) | 2012-03-15 | 2012-03-15 | Resonator tuning structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210067857.6A CN103311633B (en) | 2012-03-15 | 2012-03-15 | Resonator tuning structure |
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| CN103311633A CN103311633A (en) | 2013-09-18 |
| CN103311633B true CN103311633B (en) | 2015-03-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070450A1 (en) * | 2013-11-18 | 2015-05-21 | 华为技术有限公司 | Resonator, filter, duplexer and multiplexer |
| CN105048052B (en) * | 2015-07-08 | 2018-07-27 | 广东国华新材料科技股份有限公司 | A kind of tunable dielectric resonator and dielectric filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201523058U (en) * | 2009-10-28 | 2010-07-07 | 华南理工大学 | Controllable electromagnetic coupling dielectric resonator filter |
| CN201533009U (en) * | 2009-09-18 | 2010-07-21 | 河北博威集成电路有限公司 | Device for loading electric capacity of coaxial resonant cavity |
| CN202474175U (en) * | 2012-03-15 | 2012-10-03 | 成都赛纳赛德科技有限公司 | Tuning structure of resonator |
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- 2012-03-15 CN CN201210067857.6A patent/CN103311633B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201533009U (en) * | 2009-09-18 | 2010-07-21 | 河北博威集成电路有限公司 | Device for loading electric capacity of coaxial resonant cavity |
| CN201523058U (en) * | 2009-10-28 | 2010-07-07 | 华南理工大学 | Controllable electromagnetic coupling dielectric resonator filter |
| CN202474175U (en) * | 2012-03-15 | 2012-10-03 | 成都赛纳赛德科技有限公司 | Tuning structure of resonator |
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| CN103311633A (en) | 2013-09-18 |
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