CN207134457U - TM mould dielectric resonators - Google Patents
TM mould dielectric resonators Download PDFInfo
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- CN207134457U CN207134457U CN201720895809.4U CN201720895809U CN207134457U CN 207134457 U CN207134457 U CN 207134457U CN 201720895809 U CN201720895809 U CN 201720895809U CN 207134457 U CN207134457 U CN 207134457U
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- lower cover
- cover plate
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- groove
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Abstract
The utility model discloses a kind of TM moulds dielectric resonator, including dielectric resonance post, tuning screw, Metal cavity and cover plate, dielectric resonance post is located at the intracavitary of Metal cavity, cover plate is overlapped by upper cover plate and lower cover, the bottom surface of upper cover plate contacts with the top surface of lower cover and fixed by fastening screw, dielectric resonance column top contacts with lower cover lower surface and the through hole passed through for tuning screw is provided with upper cover plate and lower cover, hollow out endless groove is provided between bore periphery upper cover plate and lower cover, endless elastomeric is provided with hollow out endless groove, the cross section of endless elastomeric is circular or ellipse, bottom forms loop wire with lower cover and contacted.The utility model ensures batch production process, pressure contact point is highly consistent, becomes traditional face contact as regular annular line contact by the design of elastomer structure.In addition, the material that the utility model uses is mechanical industry standardized element, mature production technology, it is of relatively low cost, there are wide market prospects and promotional value.
Description
Technical field
Wireless mobile communication base station wave filter and resonator technologies field are the utility model is related to, relates more specifically to one kind
TM moulds dielectric resonator and wave filter, duplexer, multiplexer.
Background technology
Dielectric resonator is low-loss, high-k, frequency-temperature coefficient and the thermal expansion using ceramic medium material
Coefficient is small, can bear what the features such as high power designed and produced, is characterized in that insertion loss is small, resistance to power is good.Common TM moulds
Dielectric resonator is mainly made up of dielectric resonance post and metallic cavity.Dielectric resonance post upper and lower end face connects in TM mould dielectric resonators
Ground is well crucial, otherwise has a strong impact on resonator behavior.Consider for cost and doing over again property, a kind of design effectively scheme is
Elastic mechanism is set between the two, realizes pressure type Elastic Contact.When temperature change is larger, due to ceramic dielectric resonant column and gold
It is larger to belong to cavity material expansion coefficient difference, when mechanism elasticity is inadequate, is easily caused loose contact, and then cause in dielectric resonance post
Surface can not reliable ground, influence the performance of dielectric resonator.The elastic mechanism used at present in industry, generally there is two kinds：One
Kind is to crimp thin cover plate with high duty metal laciniation to realize that this scheme is higher to sawtooth precision and intensity requirement, otherwise
Act on that the pressure of dielectric resonance post upper surface is uneven, and Material Cost is of a relatively high.Another kind is hamburger type sandwich, in
Interbed is plate-like elastic mechanism, ensures to continue to continue for the thin cover plate that dielectric resonator contacts by expanding with heat and contract with cold for intermediate layer
Apply pressure, ensure good contact.But the contact of platy structure two sides is face contact, and stress action spot obscures, in practical application
The uniformity of dielectric resonator pressure can not be ensured.Key index PIM (passive inter in wave filter can not be ensured
Modulation stability), causes yield to reduce, and cost is substantially increased.
Therefore, it is badly in need of providing a kind of moderate cost, dependable performance being capable of keep medium resonant column in large temperature range
The dielectric resonator that end contact is good and stress point uniformity is high.
The content of the invention
In view of the shortcomings of the prior art, a kind of TM mould media simple in construction, moderate cost provided by the utility model are humorous
Shake device, the good contact of keep medium resonant column end face can be capable of in large temperature range, so as to ensure dielectric resonance
The performance of device.
To achieve the above object, a kind of TM moulds dielectric resonator designed by the utility model, including dielectric resonance post, tune
Humorous screw rod, Metal cavity and cover plate, the dielectric resonance post are located at the intracavitary of Metal cavity, and it is characterized in that, institute
State cover plate to be overlapped by upper cover plate and lower cover, the bottom surface of the upper cover plate contacts with the top surface of lower cover and by fastening spiral shell
Silk is fixed, and the dielectric resonance column top contacts with lower cover lower surface, is provided with the upper cover plate and lower cover for adjusting
The through hole that humorous screw rod passes through, hollow out endless groove, the hollow out ring-type are provided between the bore periphery upper cover plate and lower cover
Groove is corresponding with the position of dielectric resonance post, and endless elastomeric is provided with the hollow out endless groove, the endless elastomeric
Cross section is circular or ellipse, and bottom forms loop wire with lower cover and contacted.
Further, the endless elastomeric is coil spring around the cyclic structure formed.
Further, center is circumferentially provided with and is connected as a single entity with it inside and outside the endless elastomeric
Aileron is positioned, the positioning aileron is annular plate-like structure, parallel with the ring surface of endless elastomeric.
Further, the annular resilient of at least two diameters difference and arranged concentric is provided with the hollow out endless groove
Body, it is connected by positioning aileron between adjacent two endless elastomeric.
Further, the height of the endless elastomeric is more than the depth of hollow out endless groove, and width is less than hollow out ring-type
The width of groove.
Further, the cross section of the hollow out endless groove is circular, oval or square.
Further, the upper cover plate and lower cover are to be both provided with through hole for slab construction, middle part；The upper lid
Plate bore periphery lower surface is provided with the hollow out endless groove placed for endless elastomeric；
Further, the upper cover plate and lower cover are slab construction, and middle part is both provided with through hole, the lower cover
Bore periphery is provided with tuning screw installation step, and the periphery lower cover upper surface of the tuning screw installation step is provided with confession
The hollow out endless groove that endless elastomeric is placed.
Further, the upper surface of the lower cover is provided with annular groove, and the annular groove surrounds the hollow out ring-type of upper cover plate
Bullet is formed on relative position of the groove on lower cover, thickness≤2mm of the lower cover annular groove bottom, the lower cover annular groove bottom
Property structure.
Further, the dielectric resonance post is cylinder or square body structure, and the dielectric resonance post is hollow
Structure or semi-hollow structure.
The utility model contacts for the platy structure two sides contact of the thin cover plate of existing dielectric resonator contact for face, by
Point of force application obscures, the defects of can not ensureing the uniformity of dielectric resonator pressure, passes through the design of elastomer structure, becomes tradition
Face contact is regular annular line contact, causes the elastic construction of lower cover to deform by the deformation of endless elastomeric, so that under
Cover plate and resonant column upper surface formation rule annular line contact.In large temperature range can keep medium resonant column end face connect
Good and high stress point uniformity crimping scheme is touched, so as to ensure the performance of dielectric resonator.The utility model cost is fitted
In, dependable performance, ensure batch production process, pressure contact point is highly consistent, can ensure the consistent of dielectric resonator pressure
Property.On the other hand, the material used in the utility model is mechanical industry standardized element, mature production technology, structural reliability
Fully verified in the past few decades every profession and trade is used on a large scale, be of relatively low cost, there are wide market prospects
With promotional value.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model TM mould dielectric resonators.
Fig. 2, which is that hair is big at H in Fig. 1, to scheme.
Fig. 3 is Fig. 1 fractionation structural representation.
Fig. 4 is the structural representation that endless elastomeric section is solid circles in Fig. 1.
Fig. 5 is that endless elastomeric section is hollow circular structural representation in Fig. 1.
Fig. 6 is the structural representation that endless elastomeric section is solid oval in Fig. 1.
Fig. 7 is the structural representation that endless elastomeric section is hollow ellipse shape in Fig. 1.
Fig. 8 is the structural representation that endless elastomeric is oval ring-type structure in Fig. 1.
Fig. 9 is upper cover plate structural representation in Fig. 1.
Figure 10 is lower cover plate structure schematic diagram in Fig. 1.
Figure 11 is the structural representation that hollow out endless groove is oval ring-type structure in Fig. 1.
Figure 12 is the structural representation of second embodiment of the utility model.
Figure 13 is enlarged drawing at I in Figure 12.
Figure 14 is Figure 12 fractionation structural representation.
Figure 15 is the structural representation of endless elastomeric in the 3rd embodiment of the utility model.
Figure 16 is the structural representation for the endless elastomeric that the 4th embodiment middle section of the utility model is solid circles.
Figure 17 is the structural representation that the 4th embodiment middle section of the utility model is hollow circular endless elastomeric.
Figure 18 is the structural representation for the endless elastomeric that the 5th embodiment middle section of the utility model is solid circles.
Figure 19 is the structural representation that the 5th embodiment middle section of the utility model is hollow circular endless elastomeric.
Figure 20 is that dielectric resonance post is cylinder, the structural representation of semi-hollow structure in Fig. 1.
Figure 21 is the structural representation that dielectric resonance post is square body, hollow structure in Fig. 1.
Figure 22 is the structural representation that Metal cavity has step in Fig. 1.
Figure 23 is the structural representation that Metal cavity has counterbore in Fig. 1.
Figure 24 is the structural representation of the 6th embodiment cover plate of the utility model and Metal cavity.
Figure 25 is the structural representation of the 7th embodiment cover plate of the utility model and Metal cavity.
Figure 26 is the structural representation of the 8th embodiment cover plate of the utility model and Metal cavity.
In figure：Dielectric resonance post 1, tuning screw 2, endless elastomeric 3, position aileron 3-1, out connector 4, gold
Belong to resonator 5, input connector 6, lower cover 7, upper cover plate 8, tuning screw installation step 9, fastening screw 10, through hole 11, engrave
Empty endless groove 12, boss 13, annular groove 14.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in FIG. 1 to 3, a kind of TM moulds dielectric resonator provided by the utility model, including dielectric resonance post 1,
Tuning screw 2, Metal cavity 5, upper cover plate 8 and lower cover 7.The both sides of Metal cavity 5 are respectively arranged with input connector 6
With out connector 4, dielectric resonance post 1 is located at the intracavitary of Metal cavity 5, and top contacts with lower cover 7.Dielectric resonance post 1
It could be arranged to cylindrical structure (Figure 20) or square body structure (Figure 21).Dielectric resonance post 1 could be arranged to hollow structure
(Figure 21) or semi-hollow structure (Figure 20).The cavity of Metal cavity 5 is silver-plated, under have step (Figure 22) or counterbore (Figure 23).
The bottom surface of upper cover plate 8 contacts with the top surface of lower cover 7 and fixed by fastening screw 10, and upper cover plate 8 and the middle part of lower cover 7 are
The through hole 11 passed through for tuning screw 2 is provided with, hollow out endless groove is provided between the periphery upper cover plate 8 of through hole 11 and lower cover 7
12, hollow out endless groove 12 is corresponding with the position of dielectric resonance post 1, and endless elastomeric 3, ring-type are provided with hollow out endless groove 12
Elastomer 3 be possess under high/low temperature excellent resilience high temperature resistant is nonmetallic or metal alloy compositions made of elastomer, cross section
For solid circles (Fig. 4), hollow circular (Fig. 5), solid oval (Fig. 6) or hollow ellipse shape (Fig. 7).Endless elastomeric 3
Diameter slightly larger than the height of hollow out endless groove 12, be slightly less than the width of hollow out endless groove 12, bottom connects with the formation loop wire of lower cover 7
Touch, specific size according to the modulus of elasticity of endless elastomeric 3, the cavity depth of Metal cavity 5, dielectric resonance post 1 external diameter
It is comprehensive to determine.Be provided with elastic construction on lower cover 7, elastic construction can make lower cover 7 and 1 corresponding position of dielectric resonance post with
Vertically together deformed with endless elastomeric 3.
Embodiment one, upper cover plate 8 are the slab construction of metal or engineering plastic flitch, and as depicted in figs. 1 and 2, middle part is set
There is the through hole 11 passed through for tuning screw 2, the periphery lower surface of 8 through hole of upper cover plate 11 is provided with engraves for what endless elastomeric 3 was placed
Empty endless groove 12, when endless elastomeric 3 is using oval ring-type structure, hollow out endless groove 12 is also arranged to matched ellipse
Circular configuration.The section of hollow out endless groove 12 is circular, oval or square.As shown in Fig. 3, lower cover 7 is silver-plated gold
Belong to flat board (being usually aluminium), thickness≤2mm, middle part is provided with the through hole 11 passed through for tuning screw 2, and the surrounding of through hole 11 forms bullet
Property structure.
The difference of second embodiment and one embodiment of the present utility model is：Upper cover plate 8 is high duty metal
Or nonmetallic thin flat plate, middle part are provided with the through hole 11 passed through for tuning screw installation step 9, as shown in Figure 9；Lower cover 7 is
Metal plate (usually aluminium, copper, silver-plated), middle part is provided with the through hole 11 passed through for tuning screw 2,7 through hole of lower cover 11 weeks
While being provided with tuning screw installation step 9, the upper surface of periphery lower cover 7 of tuning screw installation step 9 is provided with for ring-type bullet
Property body 3 place hollow out endless groove 12, thickness≤2mm of the bottom of hollow out endless groove 12, the bottom of 7 hollow out endless groove of lower cover 12
Form elastic construction.As shown in Figure 10.Endless elastomeric 3 could be arranged to circular annular form structure or oval ring-type structure (figure
8), hollow out endless groove 12 is also arranged to matched circular configuration hollow out endless groove or ellipsoidal structure (Figure 11).Engrave
The section of empty endless groove 12 is circular, oval or square.
The difference of 3rd embodiment and one embodiment of the present utility model is：Endless elastomeric 3 is spiral shape
Ring spring around formation cyclic structure, as shown in figure 15.
The difference of 4th embodiment and one embodiment of the present utility model is：Inside and outside the two of endless elastomeric 3
Side center is circumferentially provided with the positioning aileron 3-1 being connected as a single entity with it, and positioning aileron 3-1 is annular plate-like knot
Structure, it is parallel with the ring surface of endless elastomeric 3.Section has positioning aileron 3-1 knot for the endless elastomeric 3 of solid circles
Structure is as shown in figure 16.Section is that hollow circular endless elastomeric 3 has positioning aileron 3-1 structure as shown in figure 17.
The difference of 5th embodiment and one embodiment of the present utility model is：It is provided with hollow out endless groove 12
The endless elastomeric 3 of at least two diameters difference and arranged concentric.Endless elastomeric 3 is the ring-type knot with least two annulus
Structure, the both sides of each annulus are provided with positioning aileron 3-1.Section has two circles for the endless elastomeric 3 of solid circles
Ring and two positioning aileron 3-1 structure are as shown in figure 18.Section is that hollow circular endless elastomeric 3 has two circles
Ring and two positioning aileron 3-1 structure are as shown in figure 19.
The difference of 6th embodiment and one embodiment of the present utility model is：The middle part of lower cover 7 is provided with
The through hole 11 passed through for tuning screw 2, the lower surface periphery of lower cover 7 are provided with downwardly convex boss 13, boss 13 and metal
The upper surface edge of the cavity of resonator 5 is corresponding, to realize lower cover 7 and the one height of other structures, as shown in figure 24, lower cover
Thickness≤the 2mm at the middle part of plate 7, the surrounding of 7 middle through-hole of lower cover 11 form elastic construction.
The difference of 7th embodiment and one embodiment of the present utility model is：The upper surface of lower cover 7 is set
There is annular groove 14, annular groove 14 surrounds relative position of the hollow out endless groove 12 of upper cover plate 8 on lower cover 7, as shown in figure 25, lower cover
Elastic construction is formed on thickness≤2mm of the bottom of 7 annular groove of plate 14, the bottom of 7 annular groove of lower cover 14.The shape of annular groove can be circular rings
Groove, oval annular groove or rectangle annular groove.
The difference of 8th embodiment and one embodiment of the present utility model is：As shown in Figure 26, upper cover plate 8
For the slab construction of metal or engineering plastic flitch, middle part is provided with the through hole 11 passed through for tuning screw 2, the middle part of lower cover 7
It is provided with the through hole 11 passed through for tuning screw 2.The periphery lower surface of 7 through hole of lower cover 11 is provided with places for endless elastomeric 3
Hollow out endless groove 12.Hollow out endless groove 12 is circular counter bore.The upper surface of lower cover 7 is provided with annular groove 14, and annular groove 14 surrounds
Hollow out endless groove 12.The shape of annular groove can be circular ring slot, oval annular groove or rectangle annular groove, the thickness of the bottom of annular groove 14
Elastic construction is formed on≤2mm, the bottom of 7 annular groove of lower cover 14.
In order to realize the elastic construction of lower cover 7 in the state of deformation with the upper surface formation rule toroid of resonant column 1
Contact, thickness≤2mm at the elastic construction of lower cover 7 is designed, so as to which lower cover 7 is under the drive of the deformation of endless elastomeric 3
Efficient deformation is carried out, ensures lower cover 7 and the upper surface formation rule annular line contact of resonant column 1 during utility model works.
It the above is only preferred embodiment of the present utility model, it is noted that for the ordinary skill people of the art
For member, on the premise of the utility model principle is not departed from, some improvement are can be devised by, these improvement also should be regarded as this
The protection domain of utility model.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a kind of TM moulds dielectric resonator, including dielectric resonance post (1), tuning screw (2), Metal cavity (5) and cover plate, institute
State the intracavitary that dielectric resonance post (1) is located at Metal cavity (5), it is characterised in that：The cover plate is by upper cover plate (8) and lower cover
(7) overlap, the bottom surface of the upper cover plate (8) is contacted with the top surface of lower cover (7) and, institute fixed by fastening screw (10)
State and contacted at the top of dielectric resonance post (1) with lower cover (7) lower surface, confession is provided with the upper cover plate (8) and lower cover (7)
The through hole (11) that tuning screw (2) passes through, hollow out is provided between through hole (11) the periphery upper cover plate (8) and lower cover (7)
Endless groove (12), the hollow out endless groove (12) is corresponding with the position of dielectric resonance post (1), in the hollow out endless groove (12)
Endless elastomeric (3) is provided with, the cross section of the endless elastomeric (3) is circular or ellipse, bottom and lower cover (7)
Form loop wire contact.
2. TM moulds dielectric resonator according to claim 1, it is characterised in that：The endless elastomeric (3) is spiral shape
Cyclic structure of the ring spring around formation.
3. TM moulds dielectric resonator according to claim 1, it is characterised in that：Inside and outside the two of the endless elastomeric (3)
Side center is circumferentially provided with the positioning aileron (3-1) being connected as a single entity with it, and the positioning aileron (3-1) is annular
Platy structure, it is parallel with the ring surface of endless elastomeric (3).
4. TM moulds dielectric resonator according to claim 3, it is characterised in that：It is provided with the hollow out endless groove (12)
At least two diameters are different and the endless elastomeric (3) of arranged concentric, by positioning aileron between adjacent two endless elastomeric (3)
(3-1) is connected.
5. TM moulds dielectric resonator according to claim 1, it is characterised in that：The height of the endless elastomeric (3) is big
Depth in hollow out endless groove (12), width are less than the width of hollow out endless groove (12).
6. TM moulds dielectric resonator according to claim 1, it is characterised in that：The cross section of the hollow out endless groove (12)
To be circular, oval or square.
7. TM moulds dielectric resonator according to claim 1, it is characterised in that：The upper cover plate (8) and lower cover (7) are equal
For slab construction, middle part is both provided with through hole (11), and upper cover plate (8) through hole (11) the periphery lower surface is provided with for ring-type bullet
Property body (3) place hollow out endless groove (12).
8. TM moulds dielectric resonator according to claim 1, it is characterised in that：The upper cover plate (8) and lower cover (7) are equal
For slab construction, middle part is both provided with through hole (11)；Lower cover (7) through hole (11) periphery is provided with tuning screw erecting bed
Rank (9), periphery lower cover (7) upper surface of the tuning screw installation step (9) are provided with what is placed for endless elastomeric (3)
Hollow out endless groove (12).
9. TM moulds dielectric resonator according to claim 1, it is characterised in that：The upper surface of the lower cover (7) is set
There is annular groove (14), the annular groove (14) surrounds relative position of the hollow out endless groove (12) of upper cover plate (8) on lower cover (7),
Elastic construction is formed on thickness≤2mm of lower cover (7) annular groove (14) bottom, lower cover (7) annular groove (14) bottom.
10. TM moulds dielectric resonator according to claim 1, it is characterised in that：The dielectric resonance post (1) is cylinder
Or square body structure, the dielectric resonance post (1) are hollow structure or semi-hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720895809.4U CN207134457U (en) | 2017-07-21 | 2017-07-21 | TM mould dielectric resonators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720895809.4U CN207134457U (en) | 2017-07-21 | 2017-07-21 | TM mould dielectric resonators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207134457U true CN207134457U (en) | 2018-03-23 |
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ID=61639296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720895809.4U Active CN207134457U (en) | 2017-07-21 | 2017-07-21 | TM mould dielectric resonators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207134457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275743A (en) * | 2017-07-21 | 2017-10-20 | 武汉凡谷陶瓷材料有限公司 | TM mould dielectric resonators |
-
2017
- 2017-07-21 CN CN201720895809.4U patent/CN207134457U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275743A (en) * | 2017-07-21 | 2017-10-20 | 武汉凡谷陶瓷材料有限公司 | TM mould dielectric resonators |
| CN107275743B (en) * | 2017-07-21 | 2020-05-19 | 武汉凡谷陶瓷材料有限公司 | TM mode dielectric resonator |
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