CN209312975U - A kind of microwave filter - Google Patents
A kind of microwave filter Download PDFInfo
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- CN209312975U CN209312975U CN201920157284.3U CN201920157284U CN209312975U CN 209312975 U CN209312975 U CN 209312975U CN 201920157284 U CN201920157284 U CN 201920157284U CN 209312975 U CN209312975 U CN 209312975U
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- microwave filter
- negative coupling
- dielectric resonance
- slot
- coupling slot
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Abstract
The utility model discloses a kind of microwave filters, including microwave filter ontology, the upper surface of microwave filter ontology is equipped at least two dielectric resonance holes, dielectric resonance hole is blind hole, microwave filter ontology is equipped with interference preventing slots, interference preventing slots is the rectangular channel with setting length, width and height, interference preventing slots is located at the side in two dielectric resonance holes of arbitrary neighborhood, negative coupling slot is additionally provided on the upper surface of microwave filter ontology and between two dielectric resonance holes of arbitrary neighborhood, negative coupling slot be blind slot and its be extended on the side side wall in dielectric resonance hole to dielectric resonance hole direction from interference preventing slots.The utility model opens up negative coupling slot between a pair of of dielectric resonance hole, length, width and groove depth by adjusting negative coupling slot can control the size of coupling amount, to realize the negative coupling of microwave filter, the processing is simple, have the function of that high q-factor, low-loss, highly selective, distorted signals is small, and there is line style phase.
Description
Technical field
The utility model belongs to wave filter technology field, specially a kind of microwave filter.
Background technique
Filter is low-loss, high dielectric constant, frequency-temperature coefficient and the thermal expansion coefficient using medium ceramic material
It is small, can bear what the features such as high power designed and produced.Filter plays in the processing of electronic signal always and its important work
With it, which has, allows useful signal passing through without failure as far as possible, the function of the failure as big as possible to garbage signal.Filter quilt
It is widely used in the communication fields such as radio frequency, microwave.With the fast development of microwave radio commu system, the resource of frequency range it is in short supply,
Requirement to transmitting and the receiving of signal is also higher and higher, proposes increasingly higher demands to the performance and volume of filter.
Therefore, need that a kind of distorted signals is small, microwave filter of simple process.
Utility model content
To solve defect of the existing technology, the utility model provides a kind of microwave filter.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of microwave filter of the utility model, including microwave filter ontology, the upper table of the microwave filter ontology
Face is equipped at least two dielectric resonance holes, and the dielectric resonance hole is blind hole, and the microwave filter ontology, which is equipped with, to be run through
The interference preventing slots of microwave filter ontology, the interference preventing slots are the rectangular channel with setting length, width and height, the anti-tampering slot position
In on the side in two dielectric resonance holes of arbitrary neighborhood, the upper surface of the microwave filter ontology and positioned at arbitrary neighborhood two
Be additionally provided with negative coupling slot between dielectric resonance hole, the negative coupling slot be blind slot and its by interference preventing slots close to dielectric resonance hole
It is extended on the side wall of side to dielectric resonance hole direction, is additionally provided with input adapter on the lower surface of the microwave filter ontology
Column and out splice going splice column.
As a kind of optimal technical scheme of the utility model, the microwave filter ontology includes by solid dielectric material
Manufactured filtering body and the conductive layer being set on filtering body outer surface.
As a kind of optimal technical scheme of the utility model, the solid dielectric material is dielectric ceramic.
As a kind of optimal technical scheme of the utility model, the conductive layer be silver, aluminium, copper, it is golden in any one
Metal conducting layer.
As a kind of optimal technical scheme of the utility model, on the lower surface of the microwave filter ontology and it is located at extremely
The second negative coupling slot is additionally provided between few two dielectric resonance holes, the second negative coupling slot is blind slot.
As a kind of optimal technical scheme of the utility model, the length direction and negative coupling slot of the second negative coupling slot
Length direction it is consistent.
As a kind of optimal technical scheme of the utility model, length, width and the groove depth of the negative coupling slot are for adjusting
Section coupling size.
As a kind of optimal technical scheme of the utility model, each negative coupling slot is for realizing negative coupling.
As a kind of optimal technical scheme of the utility model, it is equipped between two dielectric resonance holes of arbitrary neighborhood anti-dry
Disturb slot.
The beneficial effects of the utility model are: the utility model is compared to the prior art, between a pair of of dielectric resonance hole
Negative coupling slot is opened up, the size of coupling amount can control by the groove depth and length that adjust negative coupling slot, to realize that microwave is filtered
The negative coupling of wave device, the processing is simple, has the function of that high q-factor, low-loss, highly selective, distorted signals is small, and has line style
Phase.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the upper surface of microwave filter first embodiment of the utility model.
Fig. 2 is a kind of structural schematic diagram of the lower surface of microwave filter first embodiment of the utility model.
Fig. 3 is a kind of cross-sectional view of the structure of microwave filter first embodiment of the utility model.
Fig. 4 is a kind of structural schematic diagram of the upper surface of microwave filter second embodiment of the utility model.
Fig. 5 is a kind of structural schematic diagram of the lower surface of microwave filter second embodiment of the utility model.
Fig. 6 is a kind of structural schematic diagram of the upper surface of microwave filter second embodiment of the utility model.
Fig. 7 is a kind of structural schematic diagram of the upper surface of microwave filter 3rd embodiment of the utility model.
Fig. 8 is a kind of structural schematic diagram of the lower surface of microwave filter 3rd embodiment of the utility model.
Fig. 9 is a kind of structural schematic diagram of the upper surface of microwave filter 3rd embodiment of the utility model.
In figure: 1, microwave filter ontology, 2, dielectric resonance hole, 3, interference preventing slots, 4, negative coupling slot, 5, input adapter
Column, 6, out splice going splice column, the 7, second negative coupling slot.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
In the description of the present invention, it should be understood that the orientation or positional relationship of the instructions such as term " left side " " right side "
It is all based on the orientation or positional relationship shown in FIG. 1 of Figure of description, is merely for convenience of description the utility model and simplification
Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is equipped with "
It may be fixed connection or may be dismantle connection, or integral connection；It can be directly connected, centre can also be passed through
Medium is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in this reality as the case may be
With the concrete meaning in novel.
Embodiment 1
In order to reach the purpose of this utility model, as shown in Figure 1 to Figure 3, in one of embodiment party of the utility model
A kind of microwave filter, including microwave filter ontology 1 are provided in formula, the upper surface of microwave filter ontology 1 is equipped with two rows
Dielectric resonance hole 2, for every row respectively there are three mutual corresponding dielectric resonance hole 2, dielectric resonance hole 2 is blind hole, microwave filter
Ontology 1 is equipped with the interference preventing slots 3 through microwave filter ontology, and interference preventing slots 3 is the rectangular channel with setting length, width and height, prevents
Interference tank 3 is located at first of first row between second dielectric resonance hole of first row, first and second of second row
Row second dielectric resonance hole between, first of first row between first dielectric resonance hole of second row, Yi Ji
Second of one row is between second dielectric resonance hole of second row, to constitute cross-shaped groove structure, interference preventing slots 3 is also located at
Between first row second and the third dielectric resonance hole of first row, the third medium of second row second and second row it is humorous
Between vibration hole and between second dielectric resonance hole of first row second and second row, the upper surface of microwave filter ontology 1
Upper and be located at first and ranked third and second ranked third and be additionally provided with negative coupling slot 4 between a dielectric resonance hole, negative coupling slot 4 is blind
Slot and its be extended on the side side wall in dielectric resonance hole to dielectric resonance hole direction from interference preventing slots, microwave filter
Input adapter column 5 and out splice going splice column 6 are additionally provided on the lower surface of ontology 1.
Specifically, dielectric resonance hole 2 is blind cylindrical hole or prismatic blind hole, can specifically be selected according to actual needs,
It is not limited solely to the present embodiment.
Specifically, microwave filter ontology 1 includes the filtering body made of solid dielectric material and is set to filter
Conductive layer on wave device body outer surface.
Specifically, solid dielectric material is dielectric ceramic.In addition, solid dielectric material can also select those skilled in the art
Other materials known to member, such as the high molecular polymer of glass, electrical isolation.
Specifically, conductive layer be silver, aluminium, copper, it is golden in any one metal conducting layer, can adopt according to actual needs
With.Meanwhile metal conducting layer can carry out plating metal by the outer surface to microwave filter ontology and be formed.
The present embodiment ranked third first and second ranked third and open up negative coupling slot between a dielectric resonance hole, passes through tune
Length, width and the groove depth for saving negative coupling slot can control the size of coupling amount, to realize the negative coupling of microwave filter, add
Work is simple, has the function of that high q-factor, low-loss, highly selective, distorted signals is small, and has line style phase.
Embodiment 2
As shown in Figures 4 to 6, in order to further optimize the implementation result of the utility model, in the another of the utility model
In a kind of embodiment, on the basis of foregoing teachings, on the lower surface of above-mentioned microwave filter ontology 1 and it is located at first row
Third and second ranked third and be additionally provided with the second negative coupling slot 7 between a dielectric resonance hole, and the second negative coupling slot 7 is blind slot.It is logical
The second negative coupling slot 7 is crossed, negative coupling performance can be improved.
Embodiment 3
As shown in Figure 7 to 9, in order to further optimize the implementation result of the utility model, in the another of the utility model
In a kind of embodiment, on the basis of foregoing teachings, the negative coupling slot 7 of above-mentioned second is from the right end end of microwave filter ontology
It is extended towards a left side.
Specifically, the length direction of the second negative coupling slot 7 is consistent with the length direction of negative coupling slot 4.
Specifically, the groove depth of negative coupling slot 4 and the length of negative coupling slot 4 are for adjusting coupling size, the slot of negative coupling slot 4
The length of deep and negative coupling slot 4 can be designed according to actual needs, and present embodiment is not especially limited.
Specifically, each negative coupling slot 4 is for realizing negative coupling.In addition, the number of negative coupling slot 4 can be one or more
In one, can transmission zero point according to actual needs number and frequency come design the number of negative coupling slot, position, groove depth and
Length.
Finally, it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (9)
1. a kind of microwave filter, which is characterized in that including microwave filter ontology (1), the microwave filter ontology (1)
Upper surface is equipped at least two dielectric resonance holes (2), and the dielectric resonance hole (2) is blind hole, the microwave filter ontology
(1) it is equipped with the interference preventing slots (3) through microwave filter ontology, the interference preventing slots (3) is the square with setting length, width and height
Shape slot, the interference preventing slots (3) are located at the side of two dielectric resonance holes (2) of arbitrary neighborhood, the microwave filter ontology (1)
Upper surface on and be additionally provided with negative coupling slot (4) between two dielectric resonance holes (2) of arbitrary neighborhood, the negative coupling slot
(4) for blind slot and its be extended on the side side wall in dielectric resonance hole to dielectric resonance hole direction from interference preventing slots, institute
It states and is additionally provided with input adapter column (5) and out splice going splice column (6) on the lower surface of microwave filter ontology (1).
2. microwave filter according to claim 1, which is characterized in that the microwave filter ontology (1) includes by solid
Filtering body made of state dielectric material and the conductive layer being set on filtering body outer surface.
3. microwave filter according to claim 2, which is characterized in that the solid dielectric material is dielectric ceramic.
4. microwave filter according to claim 2, which is characterized in that the conductive layer be silver, aluminium, copper, gold in times
It anticipates a kind of metal conducting layer.
5. microwave filter according to claim 1, which is characterized in that the lower surface of the microwave filter ontology (1)
It above and between at least two dielectric resonance holes is additionally provided with the second negative coupling slot (7), the second negative coupling slot (7) is blind
Slot.
6. microwave filter according to claim 5, which is characterized in that the length direction of the second negative coupling slot (7)
It is consistent with the length direction of negative coupling slot (4).
7. microwave filter according to claim 1, which is characterized in that length, width and the slot of the negative coupling slot (4)
It is deep to couple size for adjusting.
8. microwave filter according to claim 1, which is characterized in that each negative coupling slot (4) is for realizing negative coupling.
9. microwave filter according to claim 1, which is characterized in that set between two dielectric resonance holes of arbitrary neighborhood
There are interference preventing slots (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920157284.3U CN209312975U (en) | 2019-01-29 | 2019-01-29 | A kind of microwave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920157284.3U CN209312975U (en) | 2019-01-29 | 2019-01-29 | A kind of microwave filter |
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| Publication Number | Publication Date |
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| CN209312975U true CN209312975U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920157284.3U Active CN209312975U (en) | 2019-01-29 | 2019-01-29 | A kind of microwave filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828948A (en) * | 2019-12-24 | 2020-02-21 | 合肥云之微电子有限公司 | Dielectric waveguide filter |
| CN111370818A (en) * | 2020-03-06 | 2020-07-03 | 广东国华新材料科技股份有限公司 | Capacitive coupling structure and dielectric filter |
| CN111490319A (en) * | 2019-01-29 | 2020-08-04 | 苏州艾福电子通讯股份有限公司 | Microwave filter |
-
2019
- 2019-01-29 CN CN201920157284.3U patent/CN209312975U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490319A (en) * | 2019-01-29 | 2020-08-04 | 苏州艾福电子通讯股份有限公司 | Microwave filter |
| CN110828948A (en) * | 2019-12-24 | 2020-02-21 | 合肥云之微电子有限公司 | Dielectric waveguide filter |
| CN111370818A (en) * | 2020-03-06 | 2020-07-03 | 广东国华新材料科技股份有限公司 | Capacitive coupling structure and dielectric filter |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215131 No. 65, Chengji Road, Hushuguan Town, high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215131 East Workshop of Lushan Road Environmental Protection Industrial Park, Suzhou High-tech Zone, Jiangsu Province Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. |
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