CN208849050U - A kind of novel medium filter - Google Patents
A kind of novel medium filter Download PDFInfo
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- CN208849050U CN208849050U CN201821772381.5U CN201821772381U CN208849050U CN 208849050 U CN208849050 U CN 208849050U CN 201821772381 U CN201821772381 U CN 201821772381U CN 208849050 U CN208849050 U CN 208849050U
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- tuning
- cover board
- dielectric resonator
- elastomeric pad
- cylindrical body
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Abstract
The utility model is suitable for technical field of communication equipment.The utility model discloses a kind of novel medium filters, including cavity (1), tacldng medium (2), connector (3), dielectric resonator (4), tuning cover board (5), elastomeric pad (6), elastic cover plate (7), tuning screw (8), tuning nut (9), multiple screws (10)；The utility model has the beneficial effects that: the dielectric resonator of the design uses mechanical erection, traditional dielectric resonator welding and screw installation are eliminated, and cover board is fixed using elastic compression joint mode, maintains the stabilization of Q value, and be easily installed.
Description
Technical field
The utility model relates to technical field of communication equipment, in particular to a kind of novel medium filter.
Background technique
Filter always in the processing of electromagnetic signal have considerable influence, it play allow useful signal as far as possible without
Failure passes through, the function of the decaying as big as possible to garbage signal.Filter is widely used in the communications row such as radio frequency, microwave
Industry, traditional coaxial cavity metal filter technique reach its maturity, using being very extensive.With the quick hair of microwave communication industries
Exhibition, peak power is big, the product demand of low-loss and miniaturization is more and more extensive.Dielectric filter usually uses ceramic dielectric
The design of material for the features such as low-loss, high dielectric constant, thermal expansion coefficient are small, high-power manufactures.Dielectric filter is a kind of cross
Magnetic TM (Transverse Magnetic) mould dielectric resonator uses the series-parallel composition of the multistage of certain way.Common gold
Belong to filter Q between 3000~4500, with the increase of resonator series, the volume of filter can be made larger, such as
Under modern form demand, it is not able to satisfy the design requirement that product instantly is inexpensive, minimizes gradually.
Currently, in previous TM mould dielectric filter, the mounting structure of dielectric resonator usually has: one, in dielectric resonance
Using the method for welding after the standby silver in device end face, one is formed with metal base, this resonator being combined into one is installed again
Into cavity body filter, the filter of such form, due to the coefficient of thermal expansion differences between ceramic dielectric and welding metal pedestal
It is different big, it frequently results in and is easy to easily cause weld failure under high and low temperature environment, be such as broken, decline performance of filter stability；
In addition such welding manner is high to operator's welding process requirement, and difficulty is very big, and batch application is difficult.The second, medium is humorous
The device that shakes uses two or more material in structure, between be designed as stepped hole separation, installed using screw；According to
The silver-plated screw of metal, though high reliablity, since metallic screw will lead to the effective Q value rapid drawdown of dielectric resonator, it is difficult to reach
The design requirement of script；If even if the Q value of dielectric resonator is effectively reliable, but the strength of materials is not spent really with plastic screw
It is required that it is extremely unreliable, therefore also it is unsatisfactory for demand instantly.So the mounting structure of a kind of high q-factor, high reliablity, low cost needs
Ask urgent.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of novel medium filter, a kind of novel medium filter
Wave device, dielectric resonator does not use welding and screw to install, and high q-factor, high reliablity.
To solve the above-mentioned problems, the utility model provides a kind of novel medium filter, including cavity, tacldng medium,
Connector, dielectric resonator, tuning cover board, elastomeric pad, elastic cover plate, tuning screw, tuning nut, multiple screws, it is described
The centre of inside cavity is equipped with annular convex platform, and the left and right sides of the cavity is respectively provided with connecter hole；The tacldng medium is equipped with upper
Cylindrical body, lower cylindrical body, upper cylindrical body are smaller than lower cylindrical body, and upper cylindrical body is in the top of lower cylindrical body；The dielectric resonance
Device is tubular body；A circular groove is equipped with above the tuning cover board, the centre of circular groove is equipped with round tube, and round tube lower part is equipped with
Annular steps；Cover board annular convex platform is arranged below in the tuning cover board；The elastomeric pad is circular ring shape, and elastomeric pad is equipped with interior
Circular hole is downwardly convex, and has elasticity；The elastic cover plate is equipped with cover board circular hole, four fixation holes；The tacldng medium is mounted in
In annular convex platform, and lower cylindrical body and annular convex platform inner wall coincide；The dielectric resonator lower end is situated between on tacldng medium
Matter resonator inner circle and upper cylindrical outer coincide；The tuning cover board is fixed, and cover board ring above cavity by screw
The upper end face contact of shape boss and dielectric resonator；The elastomeric pad is in the circular groove of tuning cover board, and round tube is worn
Interior circular hole is crossed, interior circular hole is blocked by annular steps；The elastic cover plate is pressed in above elastomeric pad, and screw is each passed through four
Fixation hole fixes elastic cover plate with tuning cover board；One end of the tuning screw passes through round tube in conjunction with dielectric resonator, adjusts
The other end of humorous screw rod is in conjunction with tuning nut；The connector device is in connecter hole.
It is furtherly, described that since elastomeric pad is equipped with, interior circular hole is downwardly convex, and with elasticity, elastic cover plate is pressed in elasticity
Above gasket, deformation above and below elastic cover plate generation, so that elastomeric pad generation continues downward pressure and tuning the round recessed of cover board
On slot.
Furtherly, the tuning screw and the combination tuned in conjunction with nut are to tighten combination.
Furtherly, the dielectric resonator both ends of the surface coat conductive coating, it is ensured that the conduction of dielectric resonator end face
Property.
In use, the tacldng medium is mounted in annular convex platform, and lower cylindrical body and annular convex platform inner wall coincide；It is given an account of
Matter resonator lower end is on tacldng medium, and dielectric resonator inner circle and upper cylindrical outer coincide；The tuning cover board dress
It above cavity, is fixed by screw, and the upper end face contact of cover board annular convex platform and dielectric resonator；The elastic cushion is on chip
In the circular groove of tuning cover board, and round tube passes through interior circular hole, and interior circular hole is blocked by annular steps；The elastic cover plate is pressed in
Above elastomeric pad, and screw is each passed through four fixation holes, fixes elastic cover plate with tuning cover board；The tuning screw
One end passes through round tube in conjunction with dielectric resonator, and the other end of tuning screw is in conjunction with tuning nut；The connector device is even
It connects on device hole；Since elastomeric pad is equipped with, interior circular hole is downwardly convex, and with elasticity, elastic cover plate is pressed in above elastomeric pad, bullet
Property cover board occur up and down deformation so that elastomeric pad generate continue downward pressure tuning cover board circular groove on；It is given an account of
Matter resonator both ends of the surface coat conductive coating, it is ensured that the electric conductivity of dielectric resonator end face.
The utility model has the beneficial effects that: the dielectric resonator of the design uses mechanical erection, eliminate traditional
Dielectric resonator welding and screw installation, and cover board is fixed using elastic compression joint mode, maintains the stabilization of Q value, and be convenient for
Installation.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, and the attached drawing in describing is that this is practical
Novel some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.
Fig. 1 is the utility model perspective view of the explosion.
Fig. 2 is the utility model section schematic diagram.
Fig. 3 is the cavity cross-section schematic diagram of the utility model.
Fig. 4 is the tacldng medium diagrammatic cross-section of the utility model.
Fig. 5 is the dielectric resonator diagrammatic cross-section of the utility model.
Fig. 6 is the tuning cover board diagrammatic cross-section of the utility model.
Fig. 7 is the tuning cover board stereoscopic schematic diagram of the utility model.
Fig. 8 is the elastomeric pad diagrammatic cross-section of the utility model.
Fig. 9 is the elastomeric pad stereoscopic schematic diagram of the utility model.
Figure 10 is the elastic cover plate stereoscopic schematic diagram of the utility model.
Below with reference to embodiment, and referring to attached drawing, the realization of the utility model aim, functional characteristics and advantage are made into one
Walk explanation.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of utility model clearer, implement below in conjunction with the utility model
Attached drawing in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
Applying example is utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
It is practical new to belong to this for those of ordinary skill's every other embodiment obtained without making creative work
The range of type protection.
Embodiment one:
Refering to attached drawing 1 to shown in Figure 10, a kind of novel medium filter, including cavity 1, tacldng medium 2, connector
3, dielectric resonator 4, tuning cover board 5, elastomeric pad 6, elastic cover plate 7, tuning screw 8, tuning nut 9, multiple screws 10, institute
It states the centre inside cavity 1 and is equipped with annular convex platform 11, the left and right sides of the cavity 1 is respectively provided with connecter hole 12；The positioning is situated between
Matter 2 is equipped with upper cylindrical body 21, lower cylindrical body 22, and upper cylindrical body 21 is smaller than lower cylindrical body 22, and upper cylindrical body 21 is in lower cylindrical body
22 top；The dielectric resonator 4 is tubular body；The tuning cover board 5 is equipped with a circular groove 51, circular groove 51 above
Centre be equipped with round tube 511,511 lower part of round tube be equipped with annular steps 5111；Cover board convex annular is arranged below in the tuning cover board 5
Platform 52；The elastomeric pad 6 is circular ring shape, and it is downwardly convex that elastomeric pad 6 is equipped with interior circular hole 61, and has elasticity；The elasticity
Cover board 7 is equipped with 71, four fixation holes 72 of cover board circular hole；The tacldng medium 2 in the annular convex platform 11, and lower cylindrical body 22 with
11 inner wall of annular convex platform coincide；4 lower end of dielectric resonator is on tacldng medium 2, and 4 inner circle of dielectric resonator and upper circle
It coincide outside cylinder 21；The tuning cover board 5 is fixed mounted in 1 top of cavity by screw 10, and cover board annular convex platform 52 and Jie
The upper end face contact of matter resonator 4；The elastomeric pad 6 is in the circular groove 51 of tuning cover board 5, and round tube 511 passes through
Interior circular hole 61, interior circular hole 61 are blocked by annular steps 5111；The elastic cover plate 7 is pressed in 6 top of elastomeric pad, and screw 10 divides
Not Chuan Guo four fixation holes 72, keep elastic cover plate 7 and tuning cover board 5 fixed；One end of the tuning screw 8 passes through round tube 511
It is combined with dielectric resonator 4, the other end of tuning screw 8 is combined with tuning nut 9；The connector 3 is mounted in connecter hole 12
On.
Specifically: the tacldng medium 2 is in annular convex platform 11, and lower cylindrical body 22 and 11 inner wall of annular convex platform are kissed
It closes；4 lower end of dielectric resonator coincide on tacldng medium 2, and outside 4 inner circle of dielectric resonator and upper cylindrical body 21；
The tuning cover board 5 is fixed, and the upper end of cover board annular convex platform 52 and dielectric resonator 4 mounted in 1 top of cavity by screw 10
Face contact；The elastomeric pad 6 is in the circular groove 51 of tuning cover board 5, and round tube 511 passes through interior circular hole 61, interior circular hole
61 are blocked by annular steps 5111；The elastic cover plate 7 is pressed in 6 top of elastomeric pad, and screw 10 is each passed through four fixations
Hole 72 keeps elastic cover plate 7 and tuning cover board 5 fixed；One end of the tuning screw 8 passes through round tube 511 and 4 knot of dielectric resonator
It closes, the other end of tuning screw 8 is combined with tuning nut 9；The connector 3 is in connecter hole 12；Due to elastomeric pad 6
It is downwardly convex equipped with interior circular hole 61, there is elasticity, elastic cover plate 7 is pressed in 6 top of elastomeric pad, and elastic cover plate 7 occurs to become up and down
Shape, so that elastomeric pad 6, which generates, continues downward pressure on the circular groove 51 of tuning cover board 5；4 both ends of dielectric resonator
Face coats conductive coating, it is ensured that the electric conductivity of 4 end face of dielectric resonator.
It is described since to be equipped with interior circular hole 61 downwardly convex for elastomeric pad 6 refering to attached drawing 1 to shown in Figure 10, there is elasticity, bullet
Property cover board 7 be pressed in the top of elastomeric pad 6, elastic cover plate 7 occurs to deform up and down, so that elastomeric pad 6, which generates, continues downward pressure
On the circular groove 51 of tuning cover board 5.
Refering to shown in attached drawing 1, Fig. 2, the combination that the tuning screw 8 and tuning nut 9 are combined is to tighten combination.
Refering to attached drawing 1 to shown in Fig. 7,4 both ends of the surface of dielectric resonator coat conductive coating, it is ensured that dielectric resonator
The electric conductivity of 4 end faces.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features, and these
Modifications or substitutions, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. a kind of novel medium filter, which is characterized in that humorous including cavity (1), tacldng medium (2), connector (3), medium
It shakes device (4), tuning cover board (5), elastomeric pad (6), elastic cover plate (7), tuning screw (8), tuning nut (9), multiple screws
(10), the internal centre of the cavity (1) is equipped with annular convex platform (11), and the left and right sides of the cavity (1) is respectively provided with connecter hole
(12)；The tacldng medium (2) is equipped with upper cylindrical body (21), lower cylindrical body (22), and upper cylindrical body (21) is than lower cylindrical body (22)
It is small, and upper cylindrical body (21) is in the top of lower cylindrical body (22)；The dielectric resonator (4) is tubular body；The tuning cover board
(5) it is equipped with a circular groove (51) above, the centre of circular groove (51) is equipped with round tube (511), and round tube (511) lower part is equipped with circle
Land rank (5111)；Cover board annular convex platform (52) are arranged below in the tuning cover board (5)；The elastomeric pad (6) is circular ring shape,
It is downwardly convex that elastomeric pad (6) is equipped with interior circular hole (61), and has elasticity；The elastic cover plate (7) be equipped with cover board circular hole (71),
Four fixation holes (72)；The tacldng medium (2) is in annular convex platform (11), and lower cylindrical body (22) and annular convex platform (11)
Inner wall coincide；Dielectric resonator (4) lower end is on tacldng medium (2), and dielectric resonator (4) inner circle and upper cylindrical body
(21) external to coincide；The tuning cover board (5) is fixed by screw (10) above cavity (1), and cover board annular convex platform
(52) with the upper end face contact of dielectric resonator (4)；Circular groove (51) of the elastomeric pad (6) mounted in tuning cover board (5)
It is interior, and round tube (511) passes through interior circular hole (61), interior circular hole (61) is blocked by annular steps (5111)；Elastic cover plate (7) pressure
Above elastomeric pad (6), and screw (10) is each passed through four fixation holes (72), makes elastic cover plate (7) and tuning cover board (5)
It is fixed；One end of the tuning screw (8) passes through round tube (511) and dielectric resonator (4) and combines, tuning screw (8) it is another
End is combined with tuning nut (9)；The connector (3) is on connecter hole (12).
2. a kind of novel medium filter according to claim 1, which is characterized in that described since elastomeric pad (6) is equipped with
Interior circular hole (61) is downwardly convex, has elasticity, and elastic cover plate (7) is pressed in above elastomeric pad (6), in elastic cover plate (7) generation
Lower deformation, so that elastomeric pad (6), which generates, continues downward pressure on the circular groove (51) of tuning cover board (5).
3. a kind of novel medium filter according to claim 1, which is characterized in that the tuning screw (8) and tuning spiral shell
The combination that female (9) combine is to tighten combination.
4. a kind of novel medium filter according to claim 2, which is characterized in that dielectric resonator (4) both ends of the surface
Coat conductive coating, it is ensured that the electric conductivity of dielectric resonator (4) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821772381.5U CN208849050U (en) | 2018-10-30 | 2018-10-30 | A kind of novel medium filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821772381.5U CN208849050U (en) | 2018-10-30 | 2018-10-30 | A kind of novel medium filter |
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| Publication Number | Publication Date |
|---|---|
| CN208849050U true CN208849050U (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821772381.5U Active CN208849050U (en) | 2018-10-30 | 2018-10-30 | A kind of novel medium filter |
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| Country | Link |
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| CN (1) | CN208849050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769346A (en) * | 2020-08-03 | 2020-10-13 | 深圳国人科技股份有限公司 | TM mode dielectric filter |
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2018
- 2018-10-30 CN CN201821772381.5U patent/CN208849050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769346A (en) * | 2020-08-03 | 2020-10-13 | 深圳国人科技股份有限公司 | TM mode dielectric filter |
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