CN110391486A - Duplexer, dielectric filter and its capacitive coupling structure - Google Patents
Duplexer, dielectric filter and its capacitive coupling structure Download PDFInfo
- Publication number
- CN110391486A CN110391486A CN201910797060.3A CN201910797060A CN110391486A CN 110391486 A CN110391486 A CN 110391486A CN 201910797060 A CN201910797060 A CN 201910797060A CN 110391486 A CN110391486 A CN 110391486A
- Authority
- CN
- China
- Prior art keywords
- regulating tank
- capacitive coupling
- medium body
- side wall
- dielectric filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 89
- 238000010168 coupling process Methods 0.000 title claims abstract description 89
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 89
- 230000001105 regulatory effect Effects 0.000 claims abstract description 192
- 238000002955 isolation Methods 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 29
- 238000000034 method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/2002—Dielectric waveguide filters
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of duplexer, dielectric filter and its capacitive coupling structures, capacitive coupling structure includes the first regulating tank being arranged between adjacent two dielectric resonators in medium body, by the first preset length and predetermined depth, one end of first regulating tank and the one side wall interval of the medium body are arranged, and the other end of first regulating tank is connected to another side wall of the medium body or the other end of first regulating tank is connected to isolation window.The capacitive coupling structure production difficulty is low, also facilitates and carries out subsequent scheduling and planning；In this way, low using the production difficulty of the dielectric filter of the capacitive coupling structure, scheduling and planning difficulty is low；In this way, low using the production difficulty of the duplexer of the dielectric filter, scheduling and planning difficulty is low.
Description
Technical field
The present invention relates to wave filter technology fields, and in particular to a kind of duplexer, dielectric filter and its capacitive coupling knot
Structure.
Background technique
With the rapid development of communication technology, in order to satisfy the use demand, communication device is also increasingly minimized.Dielectric filter
Device is widely used in a communications device because it has the characteristics of miniaturization.
For the effect for realizing good loss and inhibition, dielectric filter is usually by increasing cross-linked mode to reach
To better performance and smaller volume, therefore capacitive coupling structure need to be set on dielectric filter.Dielectric filter is
With realizing capacitively coupled mesh, traditional way is arranged deep usually between two dielectric resonators adjacent in medium body
Hole, by adjusting the spacing between the bottom wall of deep hole and the lower surface of medium body to adjust capacitive coupling bandwidth, wherein deep hole
Bottom wall and medium body lower surface between spacing it is smaller, capacitive coupling bandwidth is smaller, in order to realize small capacitive coupling
Bandwidth, the spacing needs between the bottom wall of deep hole and the lower surface of medium body are sufficiently small, in the sintering process at the process of production,
It is unfavorable for sinter molding, increases production difficulty, is also unfavorable for subsequent scheduling and planning.
Summary of the invention
Based on this, a kind of duplexer, dielectric filter and its capacitive coupling structure are proposed, the capacitive coupling structure is raw
It is low to produce difficulty, also facilitates and carries out subsequent scheduling and planning；In this way, the production of the dielectric filter using the capacitive coupling structure
Difficulty is low, and scheduling and planning difficulty is low；In this way, low using the production difficulty of the duplexer of the dielectric filter, scheduling and planning is difficult
It spends low.
Its technical solution is as follows:
On the one hand, a kind of capacitive coupling structure of dielectric filter is provided, including being set to adjacent two in medium body
The first regulating tank being arranged between a dielectric resonator, by the first preset length and predetermined depth, the one of first regulating tank
End and the one side wall interval of the medium body are arranged, the other end of first regulating tank and the other side of the medium body
The other end of wall connection or first regulating tank is connected to isolation window.
The capacitive coupling structure of above-mentioned dielectric filter presses first between two adjacent dielectric resonators of medium body
Preset length flexibly opens up out the first regulating tank of predetermined depth, so that the side of one end of the first regulating tank and medium body
The setting of wall interval, the other end of the first regulating tank are connected to another side wall of medium body, i.e., the first regulating tank extends to medium
Another side wall of ontology or the other end of the first regulating tank are connected to isolation window.The capacitive coupling knot of above-mentioned dielectric filter
Structure, by flexibly adjusting the length for opening up depth and the first regulating tank of the first regulating tank, so as to flexibly to appearance
Property coupling bandwidth be adjusted, compared to traditional form using blind hole, in order to realize small capacitive coupling bandwidth, be not required to individually
The depth of first regulating tank is adjusted, the flexibility of design is improved, reduces production difficulty, is convenient for mass production,
Also facilitate and carry out subsequent scheduling and planning；Meanwhile, it is capable to realize comparatively wide capacitive coupling bandwidth, consistency is good, functional,
Production cost is saved, convenient for the control of dielectric filter difference zero point.
Technical solution is illustrated further below:
The bottom wall of first regulating tank is equipped with the second regulating tank by the second preset length in one of the embodiments,
Second regulating tank runs through the medium body, and one end of second regulating tank and another side wall of the medium body connect
One end of logical or described second regulating tank is connected to the isolation window.In this way, by the second regulating tank of setting, it can be further
Flexibly capacitive coupling bandwidth is adjusted.
The length of second regulating tank is W in one of the embodiments,1, and W1It is adjustable.In this way, by adjusting second
The length of regulating tank can further flexibly be adjusted capacitive coupling bandwidth.
The side wall of the other end of second regulating tank is set as the first arc section in one of the embodiments, and/or
The side wall of one end of first regulating tank is set as the second arc section.In this way, convenient for the first regulating tank and the second regulating tank
It is processed.
The length of first regulating tank is W in one of the embodiments,2, and W2Adjustable and/or described first adjusting
The depth of slot is H, and H is adjustable.In this way, regulative mode is flexible, structure is simply, conveniently, easy to process.
The medium body includes at least three dielectric resonators being set side by side in one of the embodiments,
Between two adjacent dielectric resonators be equipped with first regulating tank, and one end of first regulating tank with given an account of
The one side wall interval of matter ontology is arranged, and the other end of first regulating tank is connected to another side wall of the medium body.
The dielectric resonator is equipped with the adjustment hole for adjusting frequency in one of the embodiments,.It so, it is possible root
Frequency is adjusted according to actual needs.
The medium body includes four dielectric resonators in one of the embodiments, and four media are humorous
Device shake in the column setting of two rows two, and the medium body is equipped with the isolation window for completely cutting off four dielectric resonators,
First regulating tank, one end of first regulating tank and the medium are equipped between two adjacent dielectric resonators
The one side wall interval of ontology is arranged, and the other end of first regulating tank is connected to the isolation window.
On the other hand, a kind of dielectric filter is provided, including the capacitive coupling structure.
Above-mentioned dielectric filter, it is flexible by the first preset length between two adjacent dielectric resonators of medium body
The first regulating tank of predetermined depth is opened up out, so that one end of the first regulating tank and the one side wall interval of medium body are arranged, the
The other end of one regulating tank is connected to another side wall of medium body, i.e. the other side that the first regulating tank extends to medium body
The other end of wall or the first regulating tank is connected to isolation window.Above-mentioned dielectric filter, by flexibly adjusting the first regulating tank
The length for opening up depth and the first regulating tank, so as to which flexibly capacitive coupling bandwidth is adjusted, compared to tradition
The form using blind hole in order to realize small capacitive coupling bandwidth be not required to that individually the depth of the first regulating tank is adjusted,
The flexibility for improving design, reduces production difficulty, is convenient for mass production, also facilitates and carries out subsequent scheduling and planning；Together
When, can be realized comparatively wide capacitive coupling bandwidth, consistency is good, and it is functional, production cost is saved, dielectric filter is convenient for
The control of device difference zero point.
In another aspect, a kind of duplexer is provided, including the dielectric filter.
Above-mentioned duplexer is flexibly opened up between two adjacent dielectric resonators of medium body by the first preset length
First regulating tank of predetermined depth out, so that one end of the first regulating tank and the one side wall interval of medium body are arranged, first is adjusted
The other end of section slot is connected to another side wall of medium body, i.e. the first regulating tank extends to another side wall of medium body, or
The other end of first regulating tank is connected to isolation window.Above-mentioned duplexer opens up depth by flexibly adjust the first regulating tank
The length of degree and the first regulating tank, so as to which flexibly capacitive coupling bandwidth is adjusted, compared to traditional using blind
The form in hole is not required to that individually the depth of the first regulating tank is adjusted, improves and set to realize small capacitive coupling bandwidth
The flexibility of meter, reduces production difficulty, is convenient for mass production, also facilitates and carries out subsequent scheduling and planning；Meanwhile, it is capable to real
Existing comparatively wide capacitive coupling bandwidth, consistency is good, functional, saves production cost, is convenient for dielectric filter difference zero
The control of point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first surface of the capacitive coupling structure of the dielectric filter of one embodiment；
Fig. 2 is the cross-sectional view of the part capacitive coupling structure A-A of the dielectric filter of Fig. 1；
Fig. 3 is the structural schematic diagram of the second surface of the capacitive coupling structure of the dielectric filter of Fig. 1；
Fig. 4 is the cross-sectional view of the part capacitive coupling structure B-B of the dielectric filter of Fig. 3；
Fig. 5 is the structural schematic diagram of the first surface of the capacitive coupling structure of the dielectric filter of another embodiment；
Fig. 6 is the cross-sectional view of the part capacitive coupling structure C-C of the dielectric filter of Fig. 5；
Fig. 7 is the structural schematic diagram of the second surface of the capacitive coupling structure of the dielectric filter of Fig. 5；
Fig. 8 is the cross-sectional view of the part capacitive coupling structure D-D of the dielectric filter of Fig. 7；
Fig. 9 is the structural schematic diagram of the medium body of the capacitive coupling structure of the dielectric filter of one embodiment；
Figure 10 is the W of the capacitive coupling structure of the dielectric filter of one embodiment2With the relational graph of capacitive coupling bandwidth；
Figure 11 is the W of the capacitive coupling structure of the dielectric filter of another embodiment2With the relationship of capacitive coupling bandwidth
Figure；
Figure 12 is the H of the capacitive coupling structure of the dielectric filter of one embodiment and the relational graph of capacitive coupling bandwidth；
Figure 13 is the W of the capacitive coupling structure of the dielectric filter of one embodiment1With the relational graph of capacitive coupling bandwidth.
Description of symbols:
100, medium body, 110, isolation window, the 120, first regulating tank, the 121, second arc section, 130, second is adjusted
Slot, the 131, first arc section, 140, first surface, 150, second surface, 200, conductive layer, 1000, dielectric resonator, 1100,
Adjustment hole.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve
The present invention is released, and the scope of protection of the present invention is not limited.
It should be noted that it can be directly another when element is referred to as " being set to ", " being fixedly arranged on " another element
On a element or there may also be elements placed in the middle.When element is referred to as " being fixedly arranged on " another element, or with another yuan
Part " is fixedly connected ", and can be the mode of being detachably fixed between them is also possible to non-removable fixed form.When a member
Part is considered as " connection ", " rotation connection " another element, it can be directly to another element or may be same
When there are centering elements.Term as used herein "vertical", "horizontal", "left" and "right", "upper", "lower" and similar
Statement for illustrative purposes only, be not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the constraint present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
The similar term such as heretofore described " first ", " second ", " third " does not represent specific quantity and sequence, only
It is the differentiation for title.
As shown in Figures 1 to 4, in one embodiment, a kind of capacitive coupling structure of dielectric filter is disclosed, including
It is arranged in medium body 100 between two adjacent dielectric resonators 1000, by the first preset length and predetermined depth
First regulating tank 120, one end of the first regulating tank 120 and the one side wall interval of medium body 100 are arranged, the first regulating tank 120
The other end be connected to another side wall of medium body 100 or the other end of the first regulating tank 120 with isolation window 110 be connected to.
The capacitive coupling structure of the dielectric filter of above-described embodiment, in two adjacent dielectric resonances of medium body 100
The first regulating tank 120 for flexibly opening up out predetermined depth between device 1000 by the first preset length, so that the first regulating tank 120
One end and the one side wall interval of medium body 100 be arranged, the other end of the first regulating tank 120 is another with medium body 100
Side wall connection, i.e. the first regulating tank 120 extend to medium body 100 another side wall or the first regulating tank 120 the other end with
Completely cut off window 110 to be connected to.The capacitive coupling structure of the dielectric filter of above-described embodiment, by flexibly adjusting the first regulating tank
120 length for opening up depth and the first regulating tank 120, so as to which flexibly capacitive coupling bandwidth is adjusted, phase
Than traditional form using blind hole, in order to realize small capacitive coupling bandwidth, it is not required to individually to the depth of the first regulating tank 120
It is adjusted, improves the flexibility of design, reduce production difficulty, be convenient for mass production, also facilitate and carry out subsequent life
Produce debugging；Meanwhile, it is capable to realize comparatively wide capacitive coupling bandwidth, consistency is good, functional, saves production cost, just
In the control of dielectric filter difference zero point.
It needs to be illustrated, the one side wall of the first regulating tank 120 and another side wall of medium body 100 refer to medium
The different two side walls of ontology, such as the two side walls of relative spacing setting.
In one embodiment, the depth of the first regulating tank 120 is H, and H is adjustable.The depth of first regulating tank 120 can be with
It is flexibly adjusted according to actual use demand, the depth that need to only meet the first regulating tank 120 of change can be to capacitive coupling
Bandwidth flexibly adjust.
In one embodiment, the length of the first regulating tank 120 is W2, and W2It is adjustable.The length of first regulating tank 120 can
Flexibly to be adjusted according to actual use demand, the length that need to only meet the first regulating tank 120 of change can be to capacitive coupling
The wide progress of crossed belt is flexibly adjusted.
It needs to be illustrated, the length of the depth of the first regulating tank 120 and the first regulating tank 120 can carry out simultaneously
It adjusts, can also be adjusted, preferably be adjusted simultaneously respectively, compared to traditional blind hole form, while being adjusted can
The flexibility of design is improved, production difficulty is reduced, is convenient for debugging.First regulating tank 120 preferably strip or linear,
It is easy to process, it is also convenient for that the length of the first regulating tank 120 is adjusted；Certainly, the first regulating tank 120 or arc,
Need to only meet can length to the first regulating tank 120 and depth be adjusted to adjust capacitive coupling bandwidth.
As shown in Figure 1 to Figure 3, in one embodiment, the bottom wall of one end of the first regulating tank 120 presses the second preset length
Equipped with the second regulating tank 130, the second regulating tank 130 runs through medium body 100, one end of the second regulating tank 130 and medium body
100 another side wall connection or one end of the second regulating tank 130 are connected to isolation window 110.In this way, further being adjusted first
The second regulating tank 130 is simply and easily opened up out by the second preset length on the bottom wall of slot 120, by changing the second regulating tank
130 length further enhances the flexibility of adjusting to which further capacitive coupling bandwidth be adjusted.
Further, the length of the second regulating tank 130 is W1, and W1It is adjustable.In this way, the second preset length also being capable of basis
Actual use demand is flexibly adjusted, and the length that need to only meet the second regulating tank 130 of change can be to capacitive coupling bandwidth
Flexibly adjust.The chamfered shape of second regulating tank 130 can be arc, or linear or strip, only
The length of the second regulating tank 130 of adjusting need to be met so as to accordingly adjust capacitive coupling bandwidth.
As shown in Figure 1, further, the side wall of the other end of the second regulating tank 130 is set as the first arc section 131.
In this way, further reduced production difficulty convenient for processing the second regulating tank 130 on the bottom wall of the first regulating tank 120.When
So, in other embodiments, the side wall of the other end of the second regulating tank 130 may be set to be right angle changeover portion, only need to meet
The length of the second regulating tank 130 is adjusted so as to adjust capacitive coupling bandwidth.
As shown in figure 3, based on any of the above embodiments, the side wall of one end of the first regulating tank 120 is set as
Two arc sections 121.In this way, further reduced production difficulty convenient for processing the first regulating tank 120 in medium body 100.
Certainly, in other embodiments, the side wall of one end of the first regulating tank 120 may be set to be right angle changeover portion, only need to meet
Length and the depth of the first regulating tank 120 are adjusted so as to adjust capacitive coupling bandwidth.
Based on any of the above embodiments, medium body 100 is integrally formed using high dielectric constant material.In this way,
Medium body 100 is integrally formed using high dielectric constant materials such as ceramic dielectrics, can not only play the role of transmitting signal,
It can also play the role of structural support.When using ceramic dielectric material, medium body 100 can by way of die cast system
, the size and weight of entire dielectric waveguide filter can be substantially reduced.
As shown in Fig. 1 and Fig. 4, based on any of the above embodiments, dielectric resonator 1000 is equipped with for adjusting frequency
The adjustment hole 1100 of rate.In this way, can be adjusted accordingly to frequency using adjustment hole 1100.The depth of adjustment hole 1100 can
Frequency according to actual needs is adjusted accordingly, need to only be met the actual needs.
As shown in Figures 1 to 4, in one embodiment, medium body 100 includes the first surface of relative spacing setting
140 and second surface 150, first surface 140 is equipped with adjustment hole 1100, and the first regulating tank 120 is set to first surface 140.Such as
This, adjustment hole 1100 and the first regulating tank 120 are all set on first surface 140, are not required in process to medium body
100 are overturn so as to quickly in one plane process adjustment hole 1100 and the first regulating tank 120, are saved
Process, improves processing efficiency.Certainly, in other embodiments, as shown in Fig. 5 to Fig. 8, adjustment hole 1100 is set to first
After on surface 140, the first regulating tank 120 can also be set to second surface 150, need to only meet and adjust the first regulating tank 120
Length and depth can flexibly adjust capacitive coupling bandwidth.
As shown in Fig. 2 to Fig. 4, Fig. 5 to Fig. 8, in order to realize narrow capacitive coupling bandwidth, while production difficulty is reduced, made
It must design that the processing is simple, be easily assembled, the length of the second regulating tank 130 is (with W1Indicate), the length of the first regulating tank 120 is (with W2
Indicate) and depth (being indicated with H) and the first regulating tank 120 the other end and medium body 100 the distance between side wall
(with W3Indicate), it can be flexibly adjusted according to actual requirement, to may be repeated debugging, reduce design and debugging
Difficulty.
As shown in Figure 10, in one embodiment, the length W of the second regulating tank 1301=0mm, the first regulating tank 120
The distance between the side wall of depth H=0.7mm, the other end of the first regulating tank 120 and medium body 100 W3=2mm, by changing
Become the length of the first regulating tank 120, i.e. adjusting W2Size, capacitive coupling bandwidth can be accordingly adjusted, wherein W2More
Greatly, capacitive coupling bandwidth is smaller.
As shown in figure 11, in one embodiment, the length W of the second regulating tank 1301=0mm, the first regulating tank 120
The distance between the side wall of depth H=2mm, the other end of the first regulating tank 120 and medium body 100 W3=2mm passes through change
The length of first regulating tank 120, i.e. adjusting W2Size, capacitive coupling bandwidth can be accordingly adjusted, wherein W2It is bigger,
Capacitive coupling bandwidth is smaller.
As shown in figure 12, in one embodiment, the length W of the second regulating tank 1301=0mm, the first regulating tank 120
Length W2The distance between the side wall of=9mm, the other end of the first regulating tank 120 and medium body 100 W3=2mm passes through change
The depth of first regulating tank 120 adjusts the size of H, capacitive coupling bandwidth accordingly can be adjusted, wherein and H is smaller,
Capacitive coupling bandwidth is smaller.
If Figure 13 shows, in one embodiment, the length W of the first regulating tank 1202=9mm, the depth of the first regulating tank 120
Spend H=0.7mm, the distance between side wall of the other end of the first regulating tank 120 and medium body 100 W3=2mm passes through change
The length of second regulating tank 130, i.e. adjusting W1Size, capacitive coupling bandwidth can be accordingly adjusted, wherein W1It is smaller,
Capacitive coupling bandwidth is smaller.
As shown in figure 9, in one embodiment, medium body 100 includes at least three dielectric resonators being set side by side
1000, the first regulating tank 120, and one end of the first regulating tank 120 and Jie are equipped between two adjacent dielectric resonators 1000
The one side wall interval of matter ontology 100 is arranged, and the other end of the first regulating tank 120 is connected to another side wall of medium body 100.Such as
This, the dielectric resonator 1000 of medium body 100 is arranged in line style, it is easy to process, it is also convenient for subsequently through to the first regulating tank
120 depth or length is adjusted.
In one embodiment, medium body 100 includes three dielectric resonators 1000 being set side by side, first medium
First regulating tank 120, and first regulating tank 120 are equipped between resonator 1000 and second dielectric resonator 1000
The one side wall interval of one end and medium body 100 is arranged, and the other end of first regulating tank 120 is another with medium body 100
Side wall connection；First regulating tank 120 is equipped between second dielectric resonator 1000 and third dielectric resonator 1000,
And one end of first regulating tank 120 and the one side wall interval of medium body 100 are arranged, the other end of first regulating tank 120
It is connected to another side wall of medium body 100, and the bottom wall of the other end of first regulating tank 120 is equipped with the second regulating tank
130。
In one embodiment, medium body 100 includes four dielectric resonators 1000 being set side by side, first medium
First regulating tank 120, and first regulating tank 120 are equipped between resonator 1000 and second dielectric resonator 1000
The one side wall interval of one end and medium body 100 is arranged, and the other end of first regulating tank 120 is another with medium body 100
Side wall connection；First regulating tank 120 is equipped between second dielectric resonator 1000 and third dielectric resonator 1000,
And one end of first regulating tank 120 and the one side wall interval of medium body 100 are arranged, the other end of first regulating tank 120
It is connected to another side wall of medium body 100, and the bottom wall of the other end of first regulating tank 120 is equipped with the second regulating tank
130；First regulating tank 120 is equipped between third dielectric resonator 1000 and the 4th dielectric resonator 1000, and should
One end of first regulating tank 120 and the one side wall interval of medium body 100 are arranged, the other end of first regulating tank 120 and Jie
Another side wall of matter ontology 100 is connected to.
As shown in Figures 1 to 8, in one embodiment, medium body 100 include four dielectric resonators 1000, four
Dielectric resonator 1000 is in the column setting of two rows two, and medium body 100 is equipped with the isolation for completely cutting off four dielectric resonators
Window 110 is equipped with the first regulating tank 120, one end of the first regulating tank 120 and Jie between two adjacent dielectric resonators 1000
The one side wall interval of matter ontology 100 is arranged, and the other end of the first regulating tank 120 is connected to isolation window 110.In this way, four Jie
Matter resonator 1000, to form medium body 100, is equipped in the middle position of medium body 100 and is used in the column setting of two rows two
Obstruct dielectric resonator 1000 between energy transmission isolation window 110, also, two adjacent dielectric resonators 1000 it
Between the first regulating tank 120 is set so that the one side wall interval setting of one end of the first regulating tank 120 and medium body 100, first
The other end of regulating tank 120 is connected to isolation window 110；By the length, the first regulating tank 120 that adjust the first regulating tank 120
Depth, thus accordingly adjust capacitive coupling bandwidth.It can also be in the first regulating tank 120 close to the bottom wall of isolation window 110
On by the second preset length open up out the second regulating tank 130, by individually adjusting the length of the first regulating tank 120, first adjusting
The length of the depth of slot 120 and the second regulating tank 130, or the length of the first regulating tank 120, the first regulating tank 120 are adjusted simultaneously
Depth and the second regulating tank 130 length, can adjust capacitive coupling bandwidth accordingly.It is being situated between by way of plating again
Outer wall (first surface 140, second surface 150, side wall, the inner wall of the first regulating tank 120, the second regulating tank of matter ontology 100
130 inner wall, the inner wall for completely cutting off window 110, adjustment hole 1100 inner wall) form conductive layer 200 and played to form electric wall
Electromagnetic shielding action.The diameter of isolation window 110 can be adjusted flexibly according to actual needs, to reach flexible tune
Save the purpose of capacitive coupling bandwidth.
In one embodiment, a kind of dielectric filter is also disclosed, the capacitive coupling knot including any of the above-described embodiment
Structure.
The dielectric filter of above-described embodiment, by the between two adjacent dielectric resonators 1000 of medium body 100
One preset length flexibly opens up out the first regulating tank 120 of predetermined depth, so that one end of the first regulating tank 120 and medium sheet
The one side wall interval of body 100 is arranged, and the other end of the first regulating tank 120 is connected to another side wall of medium body 100, i.e., and first
Regulating tank 120 extends to another side wall of medium body 100 or the other end of the first regulating tank 120 and isolation window 110 connects
It is logical.The dielectric filter of above-described embodiment opens up depth and the first regulating tank by flexibly adjust the first regulating tank 120
120 length, so as to which flexibly capacitive coupling bandwidth is adjusted, compared to traditional form using blind hole, in order to
It realizes small capacitive coupling bandwidth, is not required to that individually the depth of the first regulating tank 120 is adjusted, improves the flexible of design
Property, production difficulty is reduced, mass production is convenient for, also facilitates and carries out subsequent scheduling and planning；Meanwhile, it is capable to realize comparatively wide
Capacitive coupling bandwidth, consistency is good, functional, production cost is saved, convenient for the control of dielectric filter difference zero point.
In one embodiment, a kind of duplexer is also disclosed, the dielectric filter including above-described embodiment.
The duplexer of above-described embodiment, it is pre- by first between two adjacent dielectric resonators 1000 of medium body 100
If the first regulating tank 120 for opening up out predetermined depth of length-flexible, so that one end of the first regulating tank 120 and medium body
100 one side wall interval setting, the other end of the first regulating tank 120 are connected to another side wall of medium body 100, i.e., first adjusts
The other end of another side wall or the first regulating tank 120 that section slot 120 extends to medium body 100 is connected to isolation window 110.
The duplexer of above-described embodiment, by the length for opening up depth and the first regulating tank 120 for flexibly adjusting the first regulating tank 120
Degree is small in order to realize compared to traditional form using blind hole so as to which flexibly capacitive coupling bandwidth is adjusted
Capacitive coupling bandwidth is not required to that individually the depth of the first regulating tank 120 is adjusted, improves the flexibility of design, reduce
Production difficulty is convenient for mass production, also facilitates and carries out subsequent scheduling and planning；Meanwhile, it is capable to realize comparatively wide capacitive coupling
Crossed belt is wide, and consistency is good, functional, saves production cost, convenient for the control of dielectric filter difference zero point.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the constraint to patent of invention range.It should be pointed out that for those of ordinary skill in the art, In
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of capacitive coupling structure of dielectric filter, which is characterized in that including being set to two Jie adjacent in medium body
The first regulating tank being arranged between matter resonator, by the first preset length and predetermined depth, one end of first regulating tank with
The one side wall interval of the medium body is arranged, and the other end of first regulating tank and another side wall of the medium body connect
The other end of logical or described first regulating tank is connected to isolation window.
2. the capacitive coupling structure of dielectric filter according to claim 1, which is characterized in that first regulating tank
Bottom wall is equipped with the second regulating tank by the second preset length, and second regulating tank runs through the medium body, and described second is adjusted
One end of slot is connected to another side wall of the medium body or one end of second regulating tank is connected to the isolation window.
3. the capacitive coupling structure of dielectric filter according to claim 2, which is characterized in that second regulating tank
Length is W1, and W1It is adjustable.
4. the capacitive coupling structure of dielectric filter according to claim 2, which is characterized in that second regulating tank
The side wall that the side wall of the other end is set as one end of the first arc section and/or first regulating tank is set as the second arc section.
5. the capacitive coupling structure of dielectric filter according to claim 1, which is characterized in that first regulating tank
Length is W2, and W2The depth of adjustable and/or described first regulating tank is H, and H is adjustable.
6. the capacitive coupling structure of dielectric filter according to any one of claims 1 to 5, which is characterized in that given an account of
Matter ontology includes at least three dielectric resonators being set side by side, and is equipped with institute between two adjacent dielectric resonators
The first regulating tank is stated, and one end of first regulating tank and the one side wall interval of the medium body are arranged, described first adjusts
The other end of section slot is connected to another side wall of the medium body.
7. the capacitive coupling structure of dielectric filter according to any one of claims 1 to 5, which is characterized in that given an account of
Matter resonator is equipped with the adjustment hole for adjusting frequency.
8. the capacitive coupling structure of dielectric filter according to any one of claims 1 to 5, which is characterized in that given an account of
Matter ontology includes four dielectric resonators, and four dielectric resonators are arranged in two rows two column, and the medium body
It is equipped with the isolation window for completely cutting off four dielectric resonators, is equipped with institute between two adjacent dielectric resonators
The first regulating tank is stated, one end of first regulating tank and the one side wall interval of the medium body are arranged, and described first is adjusted
The other end of slot is connected to the isolation window.
9. a kind of dielectric filter, which is characterized in that including capacitive coupling structure as claimed in any one of claims 1 to 8.
10. a kind of duplexer, which is characterized in that including dielectric filter as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797060.3A CN110391486A (en) | 2019-08-27 | 2019-08-27 | Duplexer, dielectric filter and its capacitive coupling structure |
| PCT/CN2020/110585 WO2021036944A1 (en) | 2019-08-27 | 2020-08-21 | Duplexer, and dielectric filter and capacitive coupling structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797060.3A CN110391486A (en) | 2019-08-27 | 2019-08-27 | Duplexer, dielectric filter and its capacitive coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110391486A true CN110391486A (en) | 2019-10-29 |
Family
ID=68289537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910797060.3A Pending CN110391486A (en) | 2019-08-27 | 2019-08-27 | Duplexer, dielectric filter and its capacitive coupling structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110391486A (en) |
| WO (1) | WO2021036944A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342187A (en) * | 2020-03-10 | 2020-06-26 | 京信通信技术(广州)有限公司 | Filter and dielectric resonator thereof |
| WO2021036944A1 (en) * | 2019-08-27 | 2021-03-04 | 京信通信技术(广州)有限公司 | Duplexer, and dielectric filter and capacitive coupling structure thereof |
| CN113258230A (en) * | 2020-06-24 | 2021-08-13 | 中兴通讯股份有限公司 | Dielectric filter combining unit and dielectric multiplexer |
| WO2021169220A1 (en) * | 2020-02-24 | 2021-09-02 | 江苏灿勤科技股份有限公司 | Dielectric filter and radio receiving and transmitting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1168406A (en) * | 1997-08-08 | 1999-03-09 | Tokin Corp | Dielectric filter |
| CN109616725A (en) * | 2018-12-29 | 2019-04-12 | 扬州江嘉科技有限公司 | A kind of novel medium waveguide filter |
| CN109755700A (en) * | 2019-03-07 | 2019-05-14 | 苏州波发特电子科技有限公司 | A kind of capacitive coupling structure of dielectric filter |
| CN210142706U (en) * | 2019-08-27 | 2020-03-13 | 京信通信技术(广州)有限公司 | Duplexer, dielectric filter and capacitive coupling structure thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3309483B2 (en) * | 1993-04-12 | 2002-07-29 | 松下電器産業株式会社 | Dielectric filter |
| JPH0955603A (en) * | 1995-08-15 | 1997-02-25 | Tokin Corp | Dielectric filter |
| CN110391486A (en) * | 2019-08-27 | 2019-10-29 | 京信通信技术(广州)有限公司 | Duplexer, dielectric filter and its capacitive coupling structure |
| CN111403863A (en) * | 2020-04-03 | 2020-07-10 | 京信射频技术(广州)有限公司 | Communication device, dielectric waveguide filter and capacitance coupling adjusting method thereof |
-
2019
- 2019-08-27 CN CN201910797060.3A patent/CN110391486A/en active Pending
-
2020
- 2020-08-21 WO PCT/CN2020/110585 patent/WO2021036944A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1168406A (en) * | 1997-08-08 | 1999-03-09 | Tokin Corp | Dielectric filter |
| CN109616725A (en) * | 2018-12-29 | 2019-04-12 | 扬州江嘉科技有限公司 | A kind of novel medium waveguide filter |
| CN109755700A (en) * | 2019-03-07 | 2019-05-14 | 苏州波发特电子科技有限公司 | A kind of capacitive coupling structure of dielectric filter |
| CN210142706U (en) * | 2019-08-27 | 2020-03-13 | 京信通信技术(广州)有限公司 | Duplexer, dielectric filter and capacitive coupling structure thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036944A1 (en) * | 2019-08-27 | 2021-03-04 | 京信通信技术(广州)有限公司 | Duplexer, and dielectric filter and capacitive coupling structure thereof |
| WO2021169220A1 (en) * | 2020-02-24 | 2021-09-02 | 江苏灿勤科技股份有限公司 | Dielectric filter and radio receiving and transmitting device |
| CN111342187A (en) * | 2020-03-10 | 2020-06-26 | 京信通信技术(广州)有限公司 | Filter and dielectric resonator thereof |
| CN113258230A (en) * | 2020-06-24 | 2021-08-13 | 中兴通讯股份有限公司 | Dielectric filter combining unit and dielectric multiplexer |
| WO2021259298A1 (en) * | 2020-06-24 | 2021-12-30 | 中兴通讯股份有限公司 | Medium filter combining unit and medium multiplexer |
| CN113258230B (en) * | 2020-06-24 | 2022-04-01 | 中兴通讯股份有限公司 | Dielectric filter combining unit and dielectric multiplexer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021036944A1 (en) | 2021-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110391486A (en) | Duplexer, dielectric filter and its capacitive coupling structure | |
| CN110148819B (en) | Capacitive coupling structure of dielectric waveguide filter and dielectric waveguide filter | |
| CN205141103U (en) | Novel mix dielectric filter | |
| WO2017107134A1 (en) | Filter, and wireless network device | |
| CN108649302A (en) | A kind of six chamber ceramic filters applied to 4G base station communications | |
| CN206532857U (en) | A kind of ceramic waveguide wave filter | |
| CN107046157A (en) | Suspended stripline bandstop filter and its communication cavity device | |
| CN106099271B (en) | A kind of HE11Modal balancing formula dielectric filter | |
| CN105720337B (en) | The two band filter of substrate integration wave-guide complementary openings resonant ring and strip lines configuration | |
| CN110459840A (en) | Communication equipment, dielectric filter, medium block | |
| US20220344792A1 (en) | Band-stop filter and radio frequency device | |
| CN109509950A (en) | A kind of compact dual-frequency waveguide filter | |
| JP2015506628A (en) | Multimode bandpass filter | |
| CN209626393U (en) | Dielectric waveguide filter and its capacitive coupling structure | |
| CN209880773U (en) | Capacitive coupling structure of dielectric waveguide filter and dielectric waveguide filter | |
| CN108306088A (en) | Rectangular waveguide bimodulus resonant cavity, waveguide dual mode filter, double-mode duplexer | |
| CN210142706U (en) | Duplexer, dielectric filter and capacitive coupling structure thereof | |
| CN105406158A (en) | Dual-mode dielectric filter enabling frequency and coupling control based metal patches | |
| CN110380165A (en) | Dielectric filter | |
| CN110112519A (en) | High bandwidth dielectric waveguide filter | |
| CN206422195U (en) | A kind of new four moulds medium bandpass filter | |
| CN110112520A (en) | A kind of dielectric waveguide filter and its port coupled structure | |
| CN207303308U (en) | Bandstop filter and radio-frequency devices | |
| CN109786910A (en) | A kind of ceramic waveguide filter for realizing cross-coupling zero point | |
| CN206532856U (en) | Suspended stripline bandstop filter and its communication cavity device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200117 Address after: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Applicant after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Address before: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Applicant before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Applicant before: COMBA TELECOM SYSTEMS (CHINA) Ltd. Applicant before: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230731 Address after: 510730, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Applicant after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Applicant after: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Address before: 510730, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Applicant before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. |