CN208970718U - A kind of resonator and cavity body filter - Google Patents
A kind of resonator and cavity body filter Download PDFInfo
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- CN208970718U CN208970718U CN201821276802.5U CN201821276802U CN208970718U CN 208970718 U CN208970718 U CN 208970718U CN 201821276802 U CN201821276802 U CN 201821276802U CN 208970718 U CN208970718 U CN 208970718U
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Abstract
This application discloses a kind of resonator and cavity body filters.The resonator includes resonant cavity, the loaded medium being placed in resonant cavity and resonant rod, frequency modulation bar, wherein resonant cavity includes cover board, side wall and bottom wall；Resonant rod includes resonant column and loading disc, and one end of resonant column is set on bottom wall, and loading disc is set to the other end of resonant column, and the upper surface of loaded medium is connect with cover board, and the lower surface of loaded medium is connect with loading disc, and loaded medium is equipped with first through hole；Cover board is run through in one end of frequency modulation bar, and extends in first through hole.In this way, can be under the premise of guaranteeing resonator miniaturization, the effective Q value and power capacity for improving resonator.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of resonator and cavity body filter.
Background technique
With the development of communication technology, the specification of communication equipment is required to be increasingly stringenter, is set being able to satisfy communication
On the basis of standby performance, it is desirable to reduce the weight and volume of communication equipment as far as possible.
A kind of communication equipment of the resonator as frequency-selecting and inhibition signal, plays a significant role in communication radio frequency field.
Present inventor has found that traditional low-frequency resonator is required to obtain low frequency in long-term R&D work
Resonant rod disk diameter is larger, and to guarantee the requirement of resonator specification, resonant rod is closer from resonator cover board, so as to cause resonator
More sensitive, quality factor (Q value) and power capacity cannot improve.
Utility model content
The application is mainly solving the technical problems that provide a kind of resonator and cavity body filter, to improve the Q of resonator
Value and power capacity.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of resonator, the resonator
It include: resonant cavity, resonant cavity includes cover board, side wall and bottom wall；The loaded medium and resonant rod being placed in the resonant cavity,
In, resonant rod includes integrally formed resonant column and loading disc, and the upper surface of loaded medium is connect with cover board, and the one of resonance roofbolt
End is set on bottom wall, and loading disc is set to the other end of resonance mast, and the lower surface of loaded medium is connect with loading disc, load
Medium is equipped with first through hole；Cover board is run through in one end of frequency modulation bar, frequency modulation bar, and extends in first through hole.
Wherein, loaded medium, loading disc, resonant column and frequency modulation bar are cylindrical structure, and are coaxially disposed.
Wherein, the internal diameter of first through hole is greater than the outer diameter of frequency modulation bar；During resonant rod is provided with close to one end of loaded medium
Empty inner cavity, the internal diameter of hollow cavity are greater than the outer diameter of frequency modulation bar；The outer diameter of loaded medium is greater than the outer diameter of loading disc；Loading disc
Outer diameter is greater than the outer diameter of resonant column.
Wherein, resonator further comprises fixed bolt, and one end of fixed bolt is fixed on the bottom wall of resonant cavity, another
End setting resonant column.
In order to solve the above technical problems, another technical solution that the application uses is: a kind of cavity body filter is provided, it should
Cavity body filter includes: N number of sequentially connected first resonator, and the first resonator is above-mentioned resonator.
Wherein, cavity body filter further comprises: multiple coupling muscle, is provided with first between two adjacent the first resonators
The resonant rod of window, two adjacent the first resonators is connected by coupling muscle along first window；Multiple adjusting screw rods adjust spiral shell
Bar is set to first window, and is arranged in a one-to-one correspondence with muscle is coupled.
Wherein, cavity body filter further comprises: cross coupling flying bar, and n-th in N number of first resonator first humorous
Second is provided between vibration device and the n-th+2 the first resonators, between the n-th+4 the first resonators and the n-th+6 the first resonators
Window, n-th of first resonators and the n-th+2 the first resonators are connected by being set to the cross coupling flying bar of the second window,
The n-th+4 the first resonators and the n-th+6 the first resonators are connected by being set to the cross coupling flying bar of the second window；
Cross-coupling screw rod, between the n-th+2 the first resonators and the n-th+4 the first resonators in N number of first resonator, n-th+6
It is provided with third window between a first resonator and the n-th+8 the first resonators, the n-th+4 the first resonators and the n-th+6
First resonator is connected by being set to the cross-coupling screw rod of third window, the n-th+6 the first resonators and the n-th+8 first
Resonator is connected by being set to the cross-coupling screw rod of third window.
Wherein, cavity body filter further comprises: the second resonator and input terminal；Wherein, the second resonator and n-th
It is provided with the 4th window between first resonator, is provided with the 5th window between the second resonator and (n-1)th the first resonator；Second
Resonator is connect along the 4th window with n-th of first resonators by coupling muscle, and the second resonator is by coupling muscle along the 5th window
Mouth is connect with (n-1)th the first resonator, and the second resonator is connect with input terminal；Third resonator and output terminal；Its
In, the 6th window is provided between third resonator and the n-th+8 the first resonators；Third resonator is by coupling muscle along the 6th window
Mouth is connect with the n-th+8 the first resonators, and third resonator is connect with output terminal.
Wherein, 10 N, n 2, the 2nd the first resonator are connect with the 4th the first resonator by cross coupling flying bar,
6th the first resonator is connect with the 8th the first resonator by cross coupling flying bar；4th the first resonator and the 6th
One resonator is connected by cross-coupling screw rod, and the 8th the first resonator and the 10th the first resonator pass through cross-coupling spiral shell
Bar connection；Second resonator, 10 the first resonators and third resonator are successively at W-shaped arrangement.
Wherein, resonant cavity is rectangular resonant cavity.
The beneficial effect of the application is: being different from the prior art, the embodiment of the present application resonator includes resonant cavity, accommodating
In loaded medium and resonant rod, frequency modulation bar in resonant cavity, wherein resonant cavity includes cover board, side wall and bottom wall；Resonant rod includes
One end of resonant column and loading disc, resonant column is set on bottom wall, and loading disc is set to the other end of resonant column, and loaded medium
Upper surface connect with cover board, the lower surface of loaded medium is connect with loading disc, loaded medium be equipped with first through hole；Frequency modulation bar
Cover board is run through in one end, and extends in first through hole.The embodiment of the present application resonator between loading disc and cover board by loading
Loaded medium, with the increase of the dielectric constant of loaded medium, the frequency of resonator is substantially reduced, and therefore, is guaranteeing resonator
Under the premise of miniaturization, can guarantee resonant rod between cover board at a distance from, therefore can be improved resonator Q value and power hold
Amount.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application resonator first embodiment；
Fig. 2 be in Fig. 1 resonator along the schematic diagram of the section structure of A-A '；
Fig. 3 is the dismantling schematic diagram of resonator in Fig. 1；
Fig. 4 is the schematic diagram of the section structure of the application resonator second embodiment；
Fig. 5 is the schematic diagram of the section structure of the application resonator 3rd embodiment；
Fig. 6 is the structural schematic diagram of the another embodiment of loaded medium of the application resonator；
Fig. 7 is the schematic diagram of the section structure of the application resonator sixth embodiment；
Fig. 8 is one Performance Simulation Results figure of Fig. 1 embodiment；
Fig. 9 is traditional one Performance Simulation Results figure of metal resonators；
Figure 10 is the structural schematic diagram of one embodiment of the application cavity body filter；
Figure 11 is the dismantling schematic diagram of Figure 10 embodiment；
Figure 12 is the Performance Simulation Results figure of Figure 10 embodiment；
Figure 13 is another Performance Simulation Results figure of Figure 10 embodiment.
Specific embodiment
The application is described in detail with reference to the accompanying drawings and examples.
The application proposes a kind of resonator first, as shown in Figure 1-3, Fig. 1 is the knot of the application resonator first embodiment
Structure schematic diagram；Fig. 2 is that for resonator along the schematic diagram of the section structure of A-A ', Fig. 3 is the dismantling schematic diagram of resonator in Fig. 1 in Fig. 1.
The present embodiment resonator 101 includes resonant cavity 102 and loaded medium 103, resonant rod 104 and frequency modulation bar 105, and loaded medium
103 and resonant rod 104 be placed in resonant cavity 102；Wherein, resonant cavity 102 includes cover board 106, side wall 107 and bottom wall 108；It is humorous
The bar 104 that shakes includes integrally formed resonant column 109 and loading disc 110, and one end of resonant column 109 is set on bottom wall, loading disc
110 are set to the other end of resonant column 109, and the upper surface of loaded medium 103 is connect with cover board 106, the following table of loaded medium 103
Face is connect with loading disc 110；Loaded medium 103 is equipped with first through hole 201, and cover board 106 is run through in one end of frequency modulation bar 105, and prolongs
It extends in first through hole 201.
The loaded medium 103 and cover board 106 of the present embodiment are in close contact, and loaded medium 103 is being set to loading disc 110
After upper, cover board 106 is directly crimped on loaded medium 103, so that the upper surface of loaded medium 103 and 106 short circuit of cover board are even
It connects and the lower surface of loaded medium 103 is connect with 110 short circuit of loading disc.
Resonator 101 is a kind of electronic component for generating resonance frequency, has and stablizes, the good spy of interference free performance
Point is widely used in various electronic equipments.The present embodiment adjusts the resonance frequency of resonator 101 by frequency modulation bar 104.
Wherein, the loaded medium 103 of the present embodiment is nonmetal medium, specifically can be the materials such as ceramic material.
It is different from the prior art, the present embodiment resonator 101 between loading disc 110 and cover board 106 by loading
Medium 103, with the increase of dielectric constant, the frequency of resonator 101 is substantially reduced, and stability is good, therefore, can guaranteed
Under the premise of resonator 101 minimizes, the effective Q value and power capacity for improving resonator 101.
Optionally, the dielectric constant range of the loaded medium 103 of the present embodiment is 20-60.
Wherein, the size of the quality factor Q of resonator 101 is related with the size of resonant cavity 102.For example, resonant cavity
When 102 diameter is 34mm, is highly 23mm, the Q value of resonator 101 can be 2662.5, and traditional metal resonators exist
When the diameter of resonant cavity is 34mm, is highly 23mm, Q value is 2394.3, it is clear that under identical resonant cavity size, the application
Resonator can obtain higher Q value.
Wherein, the present embodiment resonator 101 can realize TM mode of resonance；The loaded medium of the present embodiment resonator 101
103, loading disc 110, resonant column 109 and frequency modulation bar 105 are cylindrical structure, and are coaxially disposed.This coaxial resonator
101 structures have the advantages that loss is low, power capacity is high.
The loaded medium 103 of the present embodiment resonator 101 is consistent with 102 shape of resonant cavity, is also cylinder.
Optionally, as shown in Fig. 2, the internal diameter of the first through hole 201 of the present embodiment resonator 101 is greater than frequency modulation bar 105
Outer diameter.
The size in the unlimited gap between frequency bar 105 and loaded medium 103 of setting the tone of the application.
Optionally, hollow as shown in Fig. 2, resonant rod 104 is provided with hollow cavity 202 close to one end of loaded medium 103
The internal diameter of inner cavity 202 is greater than the outer diameter of frequency modulation bar 105.In the present embodiment, hollow cavity 202 is not through resonant column 109
The other end, in another embodiment, as shown in figure 4, Fig. 4 is the schematic diagram of the section structure of the application resonator second embodiment.
The hollow cavity 402 of the present embodiment resonator 401 runs through resonant rod 403.
Optionally, as shown in Fig. 2, the outer diameter of the loaded medium 103 of the present embodiment is greater than the outer diameter of loading disc 110.Certainly,
In another embodiment, it can also realize that the outer diameter of loaded medium 502 is greater than the outer of loading disc 503 using structure shown in fig. 5
Diameter.
Optionally, as shown in Fig. 2, the outer diameter of the loading disc 110 of the present embodiment is greater than the outer diameter of resonant column 109.
Certainly, in other embodiments, can be adjusted in above-mentioned first through hole according to the specific requirement of resonator design
It is big between the size relation of the internal diameter of diameter and hollow cavity and above-mentioned loaded medium outer diameter, load dish external diameter and resonant column outer diameter
Small relationship.
Optionally, the application can also carry out chamfering structure setting to loading disc, specifically as shown in fig. 6, Fig. 6 is the application
The structural schematic diagram of one embodiment of loaded medium of resonator.The present embodiment loaded medium 601 close to cover board (not shown) one
End and one end of close loading disc (not shown) are provided with chamfering structure.
Resonant cavity described in above-described embodiment, resonant rod, loading disc and loaded medium are structure as a whole, wherein resonance
Cavity and resonant rod are made of modes such as vehicle, milling and die casting, and inboard wall outer surface uses electric conductive oxidation, silver-plated, copper facing or plating
The modes such as gold are handled, and to improve the conductivity of housing surface, reduce insertion loss.
Optionally, as shown in fig. 7, Fig. 7 is the schematic diagram of the section structure of the application resonator fourth embodiment.The present embodiment
Resonator 701 further comprises fixed bolt 702, and the bottom wall 703 of resonant cavity (figure is not marked) is fixed in one end of fixed bolt 702
On, resonant column 704 is arranged in the other end.
In an application scenarios, as shown in figure 8, Fig. 8 is one Performance Simulation Results figure of Fig. 1 embodiment.The emulation item of Fig. 8
Part includes: that the resonance frequency of resonator 101 is 736MHz, and the outer diameter of resonant cavity 102 is 34mm, and the height of resonant cavity 102 is
23mm, loaded medium 103 are ceramic material, and the dielectric constant of loaded medium 103 is 45.Simulation result can be seen that from Fig. 8
(Q value is defined as Q=2 π * (consuming power in average energy storage/resonator one week) to the Q value of the present embodiment resonator 101
2.6625e-005, i.e., 2662.5, can bear maximum electric field strength is 5.71e+08v/m, and v/m is bigger, the function of resonator 101
Rate capacity is smaller.
Under identical simulated conditions, as shown in figure 9, Fig. 9 is traditional one Performance Simulation Results figure of metal resonators, pass
The Q value 2.3943e-003 of the metal resonators of system, i.e., 2394.3, can bear maximum electric field strength is 8.22e+08v/m.
From above-mentioned simulation result it is found that the present embodiment resonator 101 has higher Q value than traditional metal resonators,
Bigger power capacity.
The application is it is further proposed that a kind of cavity body filter, as shown in Figures 10 and 11, Figure 10 are the filtering of the application cavity
The structural schematic diagram of one embodiment of device, Figure 11 are the dismantling schematic diagrames of Figure 10 embodiment.The present embodiment cavity body filter 1001 wraps
Include N number of sequentially connected first resonator 1002, wherein first resonator 1002 of the present embodiment is humorous using above-described embodiment
Vibration device structure, detailed structure, working principle and extension do not repeat here.
Optionally, the present embodiment cavity body filter 1001 further comprises multiple coupling muscle 1003, adjacent two first
First window 1004 is provided between resonator 1002, two adjacent the first resonators 1002 are by coupling muscle 1003 along the first window
Mouth 1004 connects.
The first window 1004 of the present embodiment couples for realizing between adjacent two neighboring first resonator 1002, coupling
For muscle 1003 for reinforcing coupling between two neighboring first resonator 1002, coupling 1003 both ends of muscle are humorous with two neighboring first respectively
Resonant rod (figure is not marked) connection of vibration device 1002.It certainly, in other embodiments, can be between two neighboring first resonator 1002
First window 1004 is only set.
Optionally, the cavity body filter 1001 of the present embodiment further comprises multiple adjusting screw rods 1005, adjusting screw rod
1005 are set to first window 1004, and are arranged in a one-to-one correspondence with muscle 1003 is coupled, and adjusting screw rod 1005 is for reinforcing adjacent two
It is coupled between a first resonator 1002.
Optionally, the present embodiment cavity body filter 1001 further comprises cross coupling flying bar 1006, cross coupling flying bar
1007, cross-coupling screw rod 1008 and cross-coupling screw rod 1009, n-th of first resonance in N number of first resonator 1002
Between device 1002 and the n-th+2 the first resonators 1002, the n-th+4 the first resonators 1002 and the n-th+6 the first resonators 1002
Between be provided with the second window 1010, n-th of first resonators 1002 and the n-th+2 the first resonators 1002 by being set to
The cross coupling flying bar 1006 of two windows 1010 connects, the n-th+4 the first resonators 1002 and the n-th+6 the first resonators 1002
Cross coupling flying bar 1007 by being set to the second window 1010 connects；The n-th+2 the first resonators 1002 and the n-th+4
Third window is provided between one resonator 1202, between the n-th+6 the first resonators 1002 and the n-th+8 the first resonators 1002
1011, the n-th+2 the first resonators 1002 and the n-th+4 the first resonators 1002 are by being set to the intersection of third window 1011
It couples screw rod 1008 to connect, the n-th+6 the first resonators 1002 and the n-th+8 the first resonators 1002 are by being set to third window
The cross-coupling screw rod 1009 of mouth 1011 connects, and cross coupling flying bar 1006/1007, cross-coupling screw rod 1008/1009 are used for
Increase the stiffness of coupling between two non-adjacent the first resonators 1002.
Specifically, 1006/1007 both ends of cross coupling flying bar are suspended on the resonant cavity of the first non-adjacent resonator 1002
It is interior.
Described in the embodiment of the present application it is adjacent refer to be sequentially connected, it is non-adjacent to refer to there is no being sequentially connected relationship.
Optionally, the present embodiment cavity body filter 1001 further comprises the second resonator 1012 and input terminal 1013,
Wherein, be provided with the 4th window 1014 between the second resonator 1012 and n-th of first resonators 1002, the second resonator 1012 with
The 5th window 1015 is provided between (n-1)th the first resonator 1002；Second resonator 1012 is by coupling muscle 1003 along the 4th
Window 1014 is connect with n-th of first resonators 1002, and the second resonator 1012 is by coupling muscle 1003 along the 5th window 1005
It is connect with (n-1)th the first resonator 1002, and the second resonator 1012 is connect with input terminal 1013.
Optionally, the present embodiment cavity body filter 1001 further comprises third resonator 1016 and output terminal 1017；
Wherein, the 6th window 1018 is provided between third resonator 1016 and the n-th+8 the first resonators 1002；Third resonator 1016
Connect with the n-th+8 the first resonators 1002 by a coupling muscle 1003 along the 6th window 1008, and third resonator 1016 and
Output terminal 1017 connects.
Wherein, the second resonator 1012 and/or third resonator 1016 are the filter of metal-loaded.Certainly, other
In embodiment, the second resonator 1012 and/or third resonator 1016 may be first filter 1002.
Optionally, the N of the present embodiment is 10, n 2, the 2nd the first resonator 1002 and the 4th the first resonator 1002
It is connected by cross coupling flying bar 1006, the 6th the first resonator 1002 and the 8th the first resonator 1002 pass through cross-coupling
Fly bar 1007 to connect.4th the first resonator 1002 and the 6th the first resonator 1002 are connected by cross-coupling screw rod 1008
It connects, the 8th the first resonator 1002 is connect with the 10th the first resonator 1002 by cross-coupling screw rod 1009.
Wherein, 1012,10 the first resonators 1002 of the second resonator and third resonator 1016 are successively at W-shaped arrangement.
Resonant cavity is rectangular resonant cavity.In other embodiments, resonant cavity can also be round or other shapes.
Receiving antenna received signal is successively alternately across 1012,10 the first resonators 1002 of cascade second resonator
And third resonator 1016, cavity is formed under the collective effect of each resonator, coupling muscle 1003 and adjusting screw rod 1005 etc.
Frequency response curve needed for filter 1001.As shown in FIG. 12 and 13, Figure 12 is the Performance Simulation Results figure of Figure 10 embodiment, figure
13 be another Performance Simulation Results figure of Figure 10 embodiment.Figure 12 shows cavity body filter 1201, and frequency band is bent at different temperatures
Line, Figure 13 are Out-of-band rejection curve under different temperatures, wherein S (1,2) and S (1,1) represents frequency band curve under room temperature, S (3,4)
And S (3,3) represents frequency band curve under high temperature, S (5,6) and S (5,5) represent frequency band curve under low temperature, and m1-m3 distinguishes above-mentioned three kinds
At a temperature of first test frequency point, m10-m12 distinguish above-mentioned three kinds at a temperature of second test frequency point, m4-m5 difference above-mentioned three
Third at a temperature of kind tests frequency point.
It can be recognized from fig. 12 that in full temperature test, compared with room temperature (m10:freq=824.610MHz), high temperature
(m11:freq=824.530MHz) frequency when offsets by 0.08MHz, low temperature (m12:freq=824.910MHz) to bottom end
When frequency to high-end offset about 0.3MHz；With room temperature (m1:dB (S (1,2)=- 96.992) is compared, high temperature (m3:dB (S (3,
4) Out-of-band rejection wave crest when=- 98.382) fluctuates about 1.5dB, and (band when (S (5,6)=- 97.170) m12:dB is outer for low temperature
Inhibit wave crest fluctuation 1.0dB or so；As can be seen from Figure 13, in full temperature test, with room temperature (m4:dB (S (1,1))=-
22.633) (return loss when (S (3,3)=- 22.197) m5:dB deteriorates about 0.5dB, low temperature (m6:dB (S (5,5)) to high temperature
=-20.400) return loss when deteriorates about 2.0dB.By above-mentioned test result it is found that 1201 property of the present embodiment cavity body filter
It can be more stable.
In full temperature test, high temperature offsets by 0.08MHz to low side, return loss deteriorates 0.5dB or so；Low temperature to it is high-end partially
0.3MHz is moved, Out-of-band rejection wave crest fluctuates 1.0dB or so, and return loss deteriorates 2.0dB or so, relatively stable.
Wherein, room temperature tests environment: temperature is 25 DEG C, pressure 101kpa；High temperature test environment: temperature is 90 DEG C, pressure
It is by force 101kpa；Low-temperature test environment: temperature is -40 DEG C, pressure 101kpa.
It is different from the prior art, the resonator of the embodiment of the present application cavity body filter between loading disc and cover board by adding
Carrier loaded medium, with the increase of dielectric constant, the frequency of resonator is substantially reduced, and therefore, can guarantee that resonator is small
Under the premise of type, the effective Q value and power capacity for improving resonator, therefore can be improved the stability of filter, and chamber
Fluid filter performance is stablized.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of resonator, which is characterized in that the resonator includes:
Resonant cavity, the resonant cavity include cover board, side wall and bottom wall；
The loaded medium and resonant rod being placed in the resonant cavity, wherein the resonant rod includes integrally formed resonant column
And loading disc, one end of the resonant column are set on the bottom wall, the loading disc is set to the other end of the resonant column,
And the upper surface of the loaded medium is connect with the cover board, the lower surface of the loaded medium is connect with the loading disc, institute
Loaded medium is stated equipped with first through hole；
The cover board is run through in one end of frequency modulation bar, the frequency modulation bar, and extends in the first through hole.
2. resonator according to claim 1, which is characterized in that the loaded medium, the loading disc, the resonant column
And the frequency modulation bar is cylindrical structure, and is coaxially disposed.
3. resonator according to claim 2, which is characterized in that the internal diameter of the first through hole is greater than the frequency modulation bar
Outer diameter；
The resonant rod is provided with hollow cavity close to one end of the loaded medium, and the internal diameter of the hollow cavity is greater than described
The outer diameter of frequency modulation bar；
The outer diameter of the loaded medium is greater than the outer diameter of the loading disc；
The outer diameter of the loading disc is greater than the outer diameter of the resonant column.
4. resonator according to claim 2, which is characterized in that the resonator further comprises fixed bolt, described
One end of fixed bolt is fixed on the bottom wall of the resonant cavity, and the resonant column is arranged in the other end.
5. a kind of cavity body filter, which is characterized in that the cavity body filter includes: N number of sequentially connected first resonator, institute
Stating the first resonator is the described in any item resonators of claim 1-4.
6. cavity body filter according to claim 5, which is characterized in that the cavity body filter further comprises:
Multiple coupling muscle, are provided with first window between first resonator of adjacent two, and described adjacent two described
The resonant rod of one resonator is connected by the coupling muscle along the first window；
Multiple adjusting screw rods, the adjusting screw rod is set to the first window, and is arranged in a one-to-one correspondence with the muscle that couples.
7. cavity body filter according to claim 6, which is characterized in that the cavity body filter further comprises:
Cross coupling flying bar, between n-th of first resonators and the n-th+2 the first resonators in N number of first resonator,
Be provided with the second window between the n-th+4 the first resonators and the n-th+6 the first resonators, n-th of first resonators and
The n-th+2 first resonators are connected by being set to the cross coupling flying bar of second window, and described the n-th+4
First resonator and the n-th+6 first resonators are connected by being set to the cross coupling flying bar of second window
It connects；
Cross-coupling screw rod, between the n-th+2 the first resonators and the n-th+4 the first resonators in N number of first resonator,
It is provided with third window between n+6 the first resonators and the n-th+8 the first resonators, the n-th+4 the first resonators and described
The n-th+6 the first resonators are connected by being set to the cross-coupling screw rod of the third window, and described the n-th+6 first
Resonator is connected with the n-th+8 first resonators by being set to the cross-coupling screw rod of the third window.
8. cavity body filter according to claim 7, which is characterized in that the cavity body filter further comprises:
Second resonator and input terminal, wherein be provided with the 4th window between second resonator and n-th of first resonators
Mouthful, the 5th window is provided between second resonator and (n-1)th first resonator；Second resonator passes through institute
It states coupling muscle to connect along the 4th window with n-th of first resonators, second resonator passes through the coupling muscle
It is connect along the 5th window with (n-1)th first resonator, and second resonator is connect with the input terminal；
Third resonator and output terminal, wherein be provided with the 6th window between the third resonator and the n-th+8 the first resonators
Mouthful；The third resonator is connect along the 6th window with the n-th+8 first resonators by the coupling muscle, and institute
Third resonator is stated to connect with the output terminal.
9. cavity body filter according to claim 8, which is characterized in that the N is 10, and the n is the 2, the 2nd first humorous
Vibration device is connect with the 4th the first resonator by the cross coupling flying bar, the 6th the first resonator and the 8th the first resonance
Device is connected by the cross coupling flying bar；
4th the first resonator is connect with the 6th the first resonator by the cross-coupling screw rod, the 8th the first resonator
It is connect with the 10th the first resonator by the cross-coupling screw rod；
Wherein, second resonator, 10 first resonators and the third resonator are successively at W-shaped arrangement.
10. cavity body filter according to claim 5, which is characterized in that the resonant cavity is rectangular resonant cavity.
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| CN201821276802.5U CN208970718U (en) | 2018-08-08 | 2018-08-08 | A kind of resonator and cavity body filter |
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| CN201821276802.5U CN208970718U (en) | 2018-08-08 | 2018-08-08 | A kind of resonator and cavity body filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010888A (en) * | 2018-08-08 | 2020-04-14 | 深圳市大富科技股份有限公司 | Resonator and cavity filter |
| CN113036354A (en) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
-
2018
- 2018-08-08 CN CN201821276802.5U patent/CN208970718U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010888A (en) * | 2018-08-08 | 2020-04-14 | 深圳市大富科技股份有限公司 | Resonator and cavity filter |
| CN111010888B (en) * | 2018-08-08 | 2022-08-12 | 大富科技(安徽)股份有限公司 | Resonator and cavity filter |
| CN113036354A (en) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Address before: 518104, Guangdong, Shenzhen province Baoan District manhole street, oyster Road, manhole Industrial Company Third Industrial Zone, A1, A2, A3 101, A4 first, second, third layers Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |