CN209119284U - A kind of waveguide filter using ceramic dielectric - Google Patents
A kind of waveguide filter using ceramic dielectric Download PDFInfo
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- CN209119284U CN209119284U CN201822212945.6U CN201822212945U CN209119284U CN 209119284 U CN209119284 U CN 209119284U CN 201822212945 U CN201822212945 U CN 201822212945U CN 209119284 U CN209119284 U CN 209119284U
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- ceramic dielectric
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- dielectric block
- capacitive coupling
- waveguide filter
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Abstract
The utility model provides a kind of waveguide filter using ceramic dielectric, its plane is interlocked cloth chamber, the adjustable cross-linked power of bilateral symmetry, the height of relative position, including ceramic dielectric block, the surface of ceramic dielectric block is coated with conductive material, it is characterized by: the both ends on the surface of the side of the ceramic dielectric block are respectively equipped at least two capacitive coupling holes, the depth in the capacitive coupling hole is adjustable, for adjusting capacitive coupling power, it is equipped in the ceramic dielectric block and between two adjacent capacitive coupling holes through the resonance hole of the ceramic dielectric block, inductive coupling hole is additionally provided on the surface of the side of the ceramic dielectric block, the resonance hole and the cooperation of the capacitive coupling hole and inductive coupling hole constitute resonator, cross coupling structure is constituted at the both ends of ceramic dielectric block respectively, the ceramic dielectric Frequency debugging hole is additionally provided on the surface of the side of block, the surface of the other side of the ceramic dielectric block is equipped with input and output hole.
Description
Technical field
The utility model relates to wave filter technical fields, and in particular to a kind of waveguide filter using ceramic dielectric.
Background technique
Filter is a kind of frequency selective device, specific frequency content in signal can be made to pass through, to greatly decay it
Its frequency content.The filter of traditional metal waveguide has higher Q value, but volume and weight are larger, high production cost, together
When be unfavorable for install and transport.With the development of communication system, it is desirable that filter has filter with low insertion loss, and height inhibits, and low cost is small-sized
The features such as change.
Introducing cross-coupling technique can be improved the selectivity of filter, while can also reduce size；Current medium wave
There are still cross coupling structure complexity for waveguide filter, and inflexible, realize difficult technical problem.
Utility model content
The utility model provides a kind of waveguide filter using ceramic dielectric, and plane is interlocked cloth chamber, and a left side is adjusted
The power of right symmetrical chiasma coupling, the height of relative position.
Its technical solution is such that a kind of waveguide filter using ceramic dielectric, including ceramic dielectric block, the pottery
The surface of ceramic dielectric block is coated with conductive material, it is characterised in that: distinguishes at the both ends on the surface of the side of the ceramic dielectric block
Equipped at least two capacitive coupling holes, the depth in the capacitive coupling hole is adjustable, for adjusting capacitive coupling power, in the pottery
It is equipped on ceramic dielectric block and between two adjacent capacitive coupling holes through the resonance hole of the ceramic dielectric block, the pottery
Inductive coupling hole, the resonance hole and the capacitive coupling hole and inductance coupling are additionally provided on the surface of the side of ceramic dielectric block
Close hole cooperation constitute resonator, respectively ceramic dielectric block both ends constitute cross coupling structure, the one of the ceramic dielectric block
Frequency debugging hole is additionally provided on the surface of side, the surface of the other side of the ceramic dielectric block is equipped with input and output hole.
Further, the capacitive coupling hole is U-lag hole.
Further, the resonance hole includes two both ends for being separately positioned on the surface of the ceramic dielectric block side
The long slot hole of edge further includes four kidney slots being arranged between the capacitive coupling hole, further includes being arranged in the pottery
The resonance groove of the centre on the surface of ceramic dielectric block side, the resonance groove include setting along the ceramic dielectric block length direction
The major trough body set and the arm slot being arranged on the major trough body, the two sides that the arm slot is respectively facing the major trough body, which are staggered, to be set
It sets.
Further, the arm slot includes the first arm slot being arranged upward, third arm slot and the second arm slot being arranged downward.
Further, there are three the settings of the inductive coupling hole, the inductive coupling hole is arranged in described adjacent two
Between frequency debugging hole.
Further, frequency debugging hole is provided with ten.
Further, the conductive material is the coat of metal.
Further, the ceramic dielectric block is made of hard ceramic dielectric material.
The waveguide filter using ceramic dielectric of the utility model has the advantage that through control capacitive coupling hole
The depth adjusts capacitive coupling power, and the zero balance on Lai Shixian passband both sides is for adjusting；Resonance hole and capacitive coupling hole and
The cooperation of inductive coupling hole constitutes resonator, up and down staggeredly cloth chamber, is conducive to realize stronger cross-coupling, conducive to the height of left and right zero point
Low adjustment；It is arranged to the capacitive coupling hole in U-lag hole, suitable for the structure of staggered row chamber, reserves enough sizes to scheduling and planning
Space；The adjustable coupling bandwidth of the setting in inductive coupling hole, frequency debug the adjustable frequency height of setting in hole.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the main view of the waveguide filter using ceramic dielectric of the utility model；
Fig. 2 is the structural schematic diagram of the backsight of the waveguide filter using ceramic dielectric of the utility model；
Fig. 3 is the half-sectional structural schematic diagram of the waveguide filter using ceramic dielectric of the utility model；
Fig. 4 is the frequency response analogous diagram of the waveguide filter using ceramic dielectric of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
See Fig. 1, Fig. 2, Fig. 3, a kind of waveguide filter using ceramic dielectric of the utility model, including ceramic dielectric block
1, ceramic dielectric block 1 is made of hard ceramic dielectric material, and the surface of ceramic dielectric block 1 is coated with conductive material, conductive material
For the coat of metal, the both ends on the surface of the side of ceramic dielectric block are respectively equipped with capacitive coupling hole 21,22,23,24, capacitive coupling
The depth in hole is adjustable, and for adjusting capacitive coupling power, capacitive coupling hole is U-lag hole, in ceramic dielectric block 1 and is located at phase
It is equipped between two adjacent capacitive coupling holes through the resonance hole of ceramic dielectric block, resonance hole is through-hole, specifically in this implementation
In example, resonance hole includes the long slot hole 31,32 of the edge at the both ends on two surfaces for being separately positioned on ceramic dielectric block side,
Further include four kidney slots being arranged between capacitive coupling hole 41,42,43,44, further includes being arranged in ceramic dielectric block side
Surface centre resonance groove 5, resonance groove include along 1 length direction of ceramic dielectric block setting major trough body 51 and setting
Arm slot on major trough body 51, the two sides that arm slot is respectively facing major trough body are arranged in a staggered manner, and arm slot includes the first arm being arranged upward
Slot 52, third arm slot 54 and the second arm slot 53 being arranged downward；
Inductive coupling hole 6, resonance hole and capacitive coupling hole and electricity are additionally provided on the surface of the side of ceramic dielectric block 1
Feel coupling aperture cooperation and constitute resonator, constitutes cross coupling structure 7 at the both ends of ceramic dielectric block respectively, ceramic dielectric block 1
Frequency debugging hole 8 is additionally provided on the surface of side, frequency debugging hole 8 is provided with ten, and there are three the settings of inductive coupling hole 6,
Inductive coupling hole 6 is arranged between adjacent two frequencies debugging hole 8, and the surface of the other side of ceramic dielectric block is equipped with input
Delivery outlet 9 and input and output hole 10, capacitive coupling hole, inductive coupling hole, frequency adjustment hole are respectively blind hole in the present embodiment.
Fig. 4 is the frequency response analogous diagram of the waveguide filter using ceramic dielectric in the present embodiment, logical in filtering
The two sides of band obtain comparatively ideal Out-of-band rejection respectively, realize the high rejection characteristic of dielectric waveguide filter, are conducive to product
Electric property is shown and Miniaturization Design.
The waveguide filter of ceramic dielectric in the present embodiment is respectively set CQ coupling at the both ends of ceramic dielectric block and intersects
Coupled structure can form 4 coupling zero points in passband two sides, by controlling the depth in capacitive coupling hole, it is strong to adjust capacitive coupling
Weak, the zero balance on Lai Shixian passband both sides is for adjusting；Resonance hole and the cooperation of capacitive coupling hole and inductive coupling hole are constituted
Resonator, staggeredly cloth chamber, is conducive to realize stronger cross-coupling, conducive to the high low adjustment of left and right zero point up and down；It is arranged to U-lag
Enough dimensional spaces are reserved to scheduling and planning suitable for the structure of staggered row chamber in the capacitive coupling hole in hole, meanwhile, ceramic dielectric
The surface of the other side of block is equipped with input and output hole, has adjustment effect to input and output time delay.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of waveguide filter using ceramic dielectric, including ceramic dielectric block, the surface of the ceramic dielectric block are coated with
Conductive material, it is characterised in that: the both ends on the surface of the side of the ceramic dielectric block are respectively equipped at least two capacitive couplings
The depth in hole, the capacitive coupling hole is adjustable, for adjusting capacitive coupling power, in the ceramic dielectric block and is located at adjacent
Two capacitive coupling holes between be equipped with through the ceramic dielectric block resonance hole, the surface of the side of the ceramic dielectric block
On be additionally provided with inductive coupling hole, the resonance hole and the capacitive coupling hole and the cooperation of inductive coupling hole constitute resonator,
Cross coupling structure is constituted at the both ends of ceramic dielectric block respectively, frequency is additionally provided on the surface of the side of the ceramic dielectric block
Rate debugs hole, and the surface of the other side of the ceramic dielectric block is equipped with input and output hole.
2. a kind of waveguide filter using ceramic dielectric according to claim 1, it is characterised in that: the capacitive coupling
Hole is U-lag hole.
3. a kind of waveguide filter using ceramic dielectric according to claim 1, it is characterised in that: the resonance hole packet
The long slot hole for including the edge at the both ends on the surface that two are separately positioned on the ceramic dielectric block side further includes four settings
Kidney slot between the capacitive coupling hole further includes the resonance that the centre on surface of the ceramic dielectric block side is arranged in
Groove, the resonance groove include the major trough body being arranged along the ceramic dielectric block length direction and are arranged on the major trough body
Arm slot, the two sides that the arm slot is respectively facing the major trough body are arranged in a staggered manner.
4. a kind of waveguide filter using ceramic dielectric according to claim 3, it is characterised in that: the arm slot includes
The first arm slot, third arm slot and the second arm slot being arranged downward being arranged upward.
5. a kind of waveguide filter using ceramic dielectric according to claim 1, it is characterised in that: the inductive coupling
There are three hole settings, and the inductive coupling hole is arranged between two adjacent frequency debugging holes.
6. a kind of waveguide filter using ceramic dielectric according to claim 1, it is characterised in that: the frequency debugging
Hole is provided with ten.
7. a kind of waveguide filter using ceramic dielectric according to claim 1, it is characterised in that: the conductive material
For the coat of metal.
8. a kind of waveguide filter using ceramic dielectric according to claim 1, it is characterised in that: the ceramic dielectric
Block is made of hard ceramic dielectric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212945.6U CN209119284U (en) | 2018-12-27 | 2018-12-27 | A kind of waveguide filter using ceramic dielectric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212945.6U CN209119284U (en) | 2018-12-27 | 2018-12-27 | A kind of waveguide filter using ceramic dielectric |
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| Publication Number | Publication Date |
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| CN209119284U true CN209119284U (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822212945.6U Active CN209119284U (en) | 2018-12-27 | 2018-12-27 | A kind of waveguide filter using ceramic dielectric |
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| CN (1) | CN209119284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461995A (en) * | 2018-12-27 | 2019-03-12 | 苏州艾福电子通讯有限公司 | A kind of waveguide filter using ceramic dielectric |
| CN112086719A (en) * | 2020-09-16 | 2020-12-15 | 石家庄市鹿泉区麦特思电子科技有限公司 | Microwave dielectric waveguide filter with six-order and four-transmission zero |
-
2018
- 2018-12-27 CN CN201822212945.6U patent/CN209119284U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461995A (en) * | 2018-12-27 | 2019-03-12 | 苏州艾福电子通讯有限公司 | A kind of waveguide filter using ceramic dielectric |
| CN109461995B (en) * | 2018-12-27 | 2024-08-09 | 华为技术有限公司 | Waveguide filter adopting ceramic dielectric |
| CN112086719A (en) * | 2020-09-16 | 2020-12-15 | 石家庄市鹿泉区麦特思电子科技有限公司 | Microwave dielectric waveguide filter with six-order and four-transmission zero |
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Effective date of registration: 20190808 Address after: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee after: Huawei Technologies Co., Ltd. Address before: 215129 14 Environmental Protection Industrial Park No. 369 Lushan Road, Suzhou High-tech Zone, Jiangsu Province Patentee before: Suzhou RF Top Electronic Communication Co., Ltd. |