CN117578053A - Cavity filter capable of reducing out-of-band rejection of filter - Google Patents
Cavity filter capable of reducing out-of-band rejection of filter Download PDFInfo
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- CN117578053A CN117578053A CN202410063963.XA CN202410063963A CN117578053A CN 117578053 A CN117578053 A CN 117578053A CN 202410063963 A CN202410063963 A CN 202410063963A CN 117578053 A CN117578053 A CN 117578053A
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- filter
- groove
- fixedly connected
- cavity
- pushing
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- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 abstract 2
- 230000001629 suppression Effects 0.000 description 10
- 230000005764 inhibitory process Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910001954 samarium oxide Inorganic materials 0.000 description 1
- 229940075630 samarium oxide Drugs 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 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
- H01P1/212—Frequency-selective devices, e.g. filters suppressing or attenuating harmonic frequencies
-
- 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
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a cavity filter for reducing out-of-band rejection of a filter, which belongs to the technical field of filters and comprises a device shell; a plurality of resonators are arranged, and the resonators are arranged in the device shell; the adjusting mechanism comprises a sliding groove, a pushing sliding rod, an adjusting cavity, a cross clamping groove, a fixed circular plate, a threaded sleeve, a screw rod, a cross inserting block and an extrusion cylinder, wherein the sliding groove is formed at the upper end of a device shell, the pushing sliding rod is slidably connected in the sliding groove, the adjusting cavity is formed in the lower inner wall of the sliding groove, and the device can reduce out-of-band restraining signals formed by resonance of a plurality of resonators without adjusting the resonators from the outside so as to control the intensity of the restraining signals.
Description
Technical Field
The invention belongs to the technical field of filters, and particularly relates to a cavity filter capable of reducing out-of-band rejection of the filter.
Background
The filter is a filter circuit composed of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency points of the specific frequency or the frequencies outside the frequency points in the power line to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.
Through searching, a novel cavity dielectric cavity filter is disclosed in Chinese patent with the authority of publication number of CN102969549B, and comprises a cavity and a dielectric resonator, wherein the dielectric resonator is a cylinder with a through hole; the dielectric resonator consists of the following components in percentage by mass: 29-32% of pure 97.5% of calcium carbonate, 9-11% of aluminum oxide with purity of 97.5%, 21-25% of oxidized with purity of 99.5% and 35-38% of titanium dioxide with purity of 99.6%; one end of the dielectric resonator is plated with a silver layer, and the other end of the dielectric resonator is welded in the cavity; the cavity consists of the following components in percentage by mass: 95-96% of oxidation, 2-3% of calcium carbonate, 0.8-1.5% of lanthanum oxide and 0.2-0.5% of samarium oxide; the cavity dielectric constant is 9.5. The dielectric cavity filter has high Q value, small volume and adjustable temperature coefficient, and the reliability of the product structure is high; and the thermal expansion coefficients of the cavity and the dielectric resonator are good in consistency.
Said invention has high Q value, small volume, adjustable temperature coefficient, high reliability of product structure; and the cavity and the dielectric resonator have good thermal expansion coefficient consistency, but the dielectric resonator in the novel type is fixed at one position, so that the internal dielectric resonator is very inconvenient to adjust when the out-of-band suppression signal intensity of the filter is required to be regulated.
Disclosure of Invention
The invention aims to provide a cavity filter for reducing out-of-band rejection of a filter, and aims to solve the problem that in the prior art, when the out-of-band rejection signal intensity of the filter needs to be regulated and controlled, the internal dielectric resonance needs to be regulated very inconveniently.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a cavity filter that reduces out-of-band rejection of the filter, comprising:
a device housing;
the device comprises a device shell, a plurality of resonators and a plurality of control units, wherein the resonators are arranged in the device shell;
the adjusting mechanism comprises a sliding groove, a pushing sliding rod, an adjusting cavity, a cross clamping groove, a fixed circular plate, a threaded sleeve, a screw rod, a cross insertion block and an extrusion cylinder, wherein the sliding groove is formed in the upper end of a device shell, the pushing sliding rod is slidably connected in the sliding groove, the adjusting cavity is formed in the lower inner wall of the sliding groove, the cross clamping groove is formed in the lower end of the pushing sliding rod, the fixed circular plate is fixedly connected to the circumferential inner wall of the adjusting cavity, the threaded sleeve is fixedly connected to the lower end of the fixed circular plate, the screw rod is in threaded connection with the threaded sleeve, the cross insertion block is formed in the upper end of the screw rod and is matched with the cross clamping groove, and the extrusion cylinder is fixedly connected to the lower end of the screw rod;
the connecting mechanisms are provided with a plurality of groups, and the plurality of groups of connecting mechanisms are arranged in the device shell;
the reset mechanisms are provided with a plurality of groups, and each group of reset mechanism is arranged in the device shell and connected with the connecting mechanism.
As a preferable scheme of the invention, each group of connecting mechanism comprises a pressed block, a connecting rod, a connecting groove, a T-shaped sliding groove and a T-shaped sliding block, wherein the connecting groove is formed in the lower inner wall of the device shell, the T-shaped sliding groove is formed in one side inner wall of the connecting groove, the T-shaped sliding block is slidably connected in the T-shaped sliding groove, the pressed block is fixedly connected to one side end of the T-shaped sliding block and slides in the connecting groove, and the pressed block is fixedly connected to one side end of the connecting rod and is in contact with the pressing cylinder.
As a preferable scheme of the invention, each group of reset mechanism comprises a reset groove, a spring push plate and a reset spring, wherein the reset groove is formed in the side inner wall of the T-shaped sliding groove, the spring push plate is fixedly connected with one side end of the T-shaped sliding block and slides in the reset groove, the reset spring is fixedly connected with the side inner wall of the reset groove and one side end of the spring push plate, and the resonator is fixedly connected with the upper end of the T-shaped sliding block.
As a preferable scheme of the invention, the circumference surface of the pushing slide bar is fixedly connected with a pushing circular plate, the upper end of the fixed circular plate is fixedly connected with a first spring, the upper end of the first spring is fixedly connected with a spring circular plate, and the pushing circular plate slides on the upper end of the spring circular plate.
As a preferable scheme of the invention, the circumferential surface of the pushing slide bar is fixedly connected with friction lines.
As a preferable scheme of the invention, the lower end of the cross clamping groove is provided with an upper positioning opening, and the upper end of the cross insertion block is provided with a lower positioning opening.
As a preferable scheme of the invention, a plurality of resonant cavities are arranged in the device shell, and a plurality of resonators are respectively arranged in the resonant cavities.
As a preferred embodiment of the present invention, a cover plate is provided at an upper end of the device case.
As a preferred embodiment of the present invention, the device housing and the cover plate are both made of ceramic materials.
As a preferable scheme of the invention, the upper end of the resonator is provided with a flower knife groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the device has the advantages that the extrusion barrel extrudes the plurality of connecting mechanisms to move the plurality of resonators to enable the plurality of resonators to move out of the optimal resonant distance, so that the device can reduce out-of-band suppression signals formed by the resonance of the plurality of resonators without adjusting the resonators from the outside, and the intensity of the suppression signals is controlled.
2. Through this device, will promote the slide bar gyration when needs to adjust out of band suppression signal to the maximum, make the recipient upwards move back home position, the reset spring that is extrudeed the shrink before rebound makes T type slider rebound and makes T type slider card in the one side inner wall of T type spout make T type slider reset, resets a plurality of resonators to the optimal resonance position and amplifies the suppression signal.
3. Through this device, will promote slide bar and screw rod connection when through needs regulation for when the device is placed outside needs to fix the signal, promote the slide bar and receive contact such as outside collision and also can not influence the screw rod and then make the resonator by the position fixing after adjusting, and then stabilize the signal strength after the regulation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a first cross-sectional view of the structure of the present invention;
FIG. 3 is a cross-sectional view of a second construction of the present invention;
FIG. 4 is a first cross-sectional exploded view of the present invention;
FIG. 5 is a cross-sectional view of a third construction according to the present invention;
FIG. 6 is a second cross-sectional exploded view of the present invention;
FIG. 7 is an enlarged view of the invention at A in FIG. 3;
FIG. 8 is an enlarged view of the invention at B in FIG. 4;
fig. 9 is an enlarged view of fig. 5C in accordance with the present invention.
In the figure: 1. a device housing; 2. a resonator; 3. a sliding groove; 4. pushing the slide bar; 5. a regulating chamber; 6. a cross clamping groove; 7. fixing the circular plate; 8. a threaded sleeve; 9. a screw; 10. a cross insert; 11. pushing the circular plate; 12. a spring circular plate; 13. a first spring; 14. an extrusion cylinder; 15. a pressed block; 16. a connecting rod; 17. friction lines; 18. an upper positioning opening; 19. a lower positioning opening; 20. a connecting groove; 22. a T-shaped chute; 23. a reset groove; 24. a T-shaped slider; 25. a spring push plate; 26. a return spring; 27. a resonant cavity; 28. a cover plate; 29. flower knife groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-9, the present invention provides the following technical solutions:
a cavity filter that reduces out-of-band rejection of the filter, comprising:
a device case 1;
a plurality of resonators 2, wherein the plurality of resonators 2 are arranged in the device shell 1;
the adjusting mechanism comprises a sliding groove 3, a pushing sliding rod 4, an adjusting cavity 5, a cross clamping groove 6, a fixed circular plate 7, a threaded sleeve 8, a screw 9, a cross insert 10 and an extrusion cylinder 14, wherein the sliding groove 3 is formed at the upper end of the device shell 1, the pushing sliding rod 4 is connected in the sliding groove 3 in a sliding manner, the adjusting cavity 5 is formed in the lower inner wall of the sliding groove 3, the cross clamping groove 6 is formed at the lower end of the pushing sliding rod 4, the fixed circular plate 7 is fixedly connected to the circumferential inner wall of the adjusting cavity 5, the threaded sleeve 8 is fixedly connected to the lower end of the fixed circular plate 7, the screw 9 is in threaded connection with the threaded sleeve 8, the cross insert 10 is formed at the upper end of the screw 9 and matched with the cross clamping groove 6, and the extrusion cylinder 14 is fixedly connected to the lower end of the screw 9;
the connecting mechanisms are provided with a plurality of groups, and the plurality of groups of connecting mechanisms are arranged in the device shell 1;
the reset mechanisms are provided with a plurality of groups, and each group of reset mechanism is arranged in the device shell 1 and is connected with the connecting mechanism.
In the embodiment of the invention, the resonators 2 are used for transmitting frequency inhibition signals, the resonators 2 are arranged in the device shell 1 and have the same distance to generate resonance so as to enhance out-of-band inhibition signals, each resonator 2 is respectively connected with a connecting mechanism, the pushing slide bar 4 slides and rotates in the adjusting cavity 5, the pushing slide bar 4 is matched with the inner wall of the sliding groove 3 so as to prevent the pushing slide bar 4 from shifting when sliding in the sliding groove 3, the fixed circular plate 7 is fixed in the adjusting cavity 5, the screw 9 is arranged in the threaded sleeve 8, when the pushing slide bar 4 is not used, the cross clamping groove 6 and the cross inserting block 10 are not contacted with each other, when the out-of-band inhibition signals need to be reduced, the adjusting cavity 5 is extruded by the cross clamping groove 6 to be inserted into the cross inserting block 10 from outside, then the pushing slide bar 4 is rotated, the screw 9 is driven to rotate when the pushing slide bar 4 is fixed, the threaded sleeve 8 and the screw 9 are in threaded connection so as to drive the extruding cylinder 14 to slowly move downwards when rotating, so that the extruding cylinder 14 extrudes the connecting mechanisms to move the resonators 2, so that the resonators 2 can be optimally moved out of resonance signals, and the out-of the resonators 2 need to be controlled from outside, and the resonance signals can not be reduced, and the out-of-band inhibition signals need to be controlled, and the resonance signals can be reduced, and the resonance signals can be controlled from the resonators can not be removed from the outside, and the device.
Referring to fig. 1-9, each set of connection mechanism includes a pressed block 15, a connecting rod 16, a connecting slot 20, a T-shaped chute 22 and a T-shaped slide block 24, the connecting slot 20 is formed on the lower inner wall of the device housing 1, the T-shaped chute 22 is formed on one side inner wall of the connecting slot 20, the T-shaped slide block 24 is slidably connected in the T-shaped chute 22, the pressed block 15 is fixedly connected to one side end of the T-shaped slide block 24 and slides in the connecting slot 20, and the pressed block 15 is fixedly connected to one side end of the connecting rod 16 and contacts with the extrusion cylinder 14.
In this embodiment: t-shaped sliding block 24 and T-shaped sliding groove 22 are T-shaped, T-shaped sliding block 24 is attached to the inner wall of T-shaped sliding groove 22, so that T-shaped sliding block 24 can not shake to ensure stability of resonator 2 when moving in T-shaped sliding groove 22, when adjusting mechanism makes extrusion barrel 14 move downwards, extrusion barrel 14 extrudes extruded block 15, the contact surface of extrusion barrel 14 and extruded block 15 is an inclined surface, extrusion barrel 14 pushes extruded block 15 to slide towards the inner side of connecting groove 20 when moving downwards to extrude extruded block 15, T-shaped sliding block 24 is pushed to drive resonator 2 to slide towards one side of T-shaped sliding groove 22, and then a plurality of resonators 2 are pushed to move away from each other, so that a plurality of resonators 2 move to an optimal resonant distance, and the intensity of inhibition signals sent by resonators 2 is reduced.
Referring to fig. 1-9 specifically, each set of reset mechanism includes a reset groove 23, a spring push plate 25 and a reset spring 26, the reset groove 23 is opened on a side inner wall of the T-shaped chute 22, the spring push plate 25 is fixedly connected to a side end of the T-shaped slider 24 and slides in the reset groove 23, the reset spring 26 is fixedly connected to a side inner wall of the reset groove 23 and a side end of the spring push plate 25, and the resonator 2 is fixedly connected to an upper end of the T-shaped slider 24.
In this embodiment: when the extrusion cylinder 14 pushes the T-shaped sliding block 24 to move towards one side of the T-shaped sliding groove 22, the T-shaped sliding block 24 drives the two spring pushing plates 25 to slide in the reset groove 23, the spring pushing plates 25 move to extrude the reset springs 26 to shrink, after the movement of the spring pushing plates 25 stops, the extrusion cylinder 14 is fixed, the extruded and shrunk reset springs 26 cannot rebound to fix the position of the T-shaped sliding block 24, when out-of-band rejection signals are required to be regulated to the maximum, the push sliding rod 4 is pushed to rotate to enable the extrusion cylinder 14 to move upwards to return to the original position, the extruded and shrunk reset springs 26 rebound to enable the T-shaped sliding block 24 to be clamped on one side inner wall of the T-shaped sliding groove 22, the T-shaped sliding block 24 is reset, and the resonators 2 are reset to the optimal resonance positions to amplify the rejection signals.
Referring to fig. 1-9, a pushing circular plate 11 is fixedly connected to the circumferential surface of the pushing slide bar 4, a first spring 13 is fixedly connected to the upper end of the fixed circular plate 7, a spring circular plate 12 is fixedly connected to the upper end of the first spring 13, and the pushing circular plate 11 slides on the upper end of the spring circular plate 12.
In this embodiment: the spring circular plate 12 and the pushing circular plate 11 are the same in shape and slide up and down in the adjusting cavity 5, when the pushing slide bar 4 is in a normal state, the spring circular plate 12 and the pushing circular plate 11 are propped against the upper inner wall of the adjusting cavity 5 by the first spring 13, at the moment, the adjusting cavity 5 and the cross insert 10 are not contacted with each other, when out-of-band inhibition needs to be reduced, the pushing slide bar 4 is pushed downwards to enable the pushing slide bar 4 to overcome the resilience force of the first spring 13 and press the first spring 13 to shrink until the cross insert 10 is inserted into the cross insert 10, the pushing slide bar 4 is connected with the screw 9, so that the pushing slide bar 4 can drive the screw 9 to rotate, when the adjusting is finished, the operator releases the pushing slide bar 4 by hand, the resilience of the first spring 13 pressed and shrunk before the pushing slide bar 4 enables the cross insert 6 to be pushed out of the cross insert 10, so that the screw 9 is not contacted with the pushing slide bar 4 when the device needs to be placed outside, the signal is fixed, the pushing slide bar 4 is not affected by external collision and the like, so that the signal strength after the resonator 2 is adjusted is further stabilized, and the signal strength after the adjusting is adjusted is stable.
Referring to fig. 1-9, friction lines 17 are fixedly connected to the circumferential surface of the pushing slide bar 4.
In this embodiment: friction lines 17 are formed on the circumferential surface of the pushing slide bar 4 close to the upper side, friction lines 17 are formed on the surface of the pushing slide bar 4 to increase friction between fingers and the pushing slide bar 4 when an operator pinches the pushing slide bar 4 to twist, and deflection sliding is avoided when the operator twists the pushing slide bar 4.
Referring to fig. 1-9, an upper positioning opening 18 is formed at the lower end of the cross slot 6, and a lower positioning opening 19 is formed at the upper end of the cross insert 10.
In this embodiment: the upper positioning opening 18 and the lower positioning opening 19 are formed at the joint of the cross clamping groove 6 and the cross inserting block 10, so that the lower end of the cross clamping groove 6 and the upper end of the cross inserting block 10 are both trapezoid openings, and when the sliding rod 4 is pushed to slide into the adjusting cavity 5 by extrusion, the inclined surfaces on two sides of the upper positioning opening 18 and the lower positioning opening 19 are contacted with each other, the extrusion force can enable the upper positioning opening 18 to slide to one side of the lower positioning opening 19 so that the cross inserting block 10 is inserted into the cross clamping groove 6, and the connection between the cross clamping groove 6 and the cross inserting block 10 is facilitated.
Referring to fig. 1 to 9, a device case 1 is provided with a plurality of resonators 27, and a plurality of resonators 2 are respectively disposed in the plurality of resonators 27.
In this embodiment: the inner wall of the cavity 27 is made of metal, and the suppression signal emitted by the resonator 2 can oscillate at a series of frequencies, so as to cooperate with the resonators 2 in the cavities of the other cavities 27 to resonate to enhance the suppression signal.
Referring specifically to fig. 1-9, a cover 28 is provided at the upper end of the device housing 1.
In this embodiment: the cover plate 28 is arranged at the upper end of the device shell 1, and a through hole for pushing the slide bar 4 to slide is arranged at the upper end of the cover plate 28, when the device is in use, the cover plate 28 covers the device shell 1 to enable the device to be in a sealed and closed state.
Referring specifically to fig. 1-9, the device housing 1 and cover 28 are both made of ceramic materials.
In this embodiment: the device case 1 and the cover plate 28 at the outer end of the device are made of ceramic materials, so that the device case 1 and the cover plate 28 have electrical insulation properties and can transmit and store electrical signals.
Referring specifically to fig. 1-9, the resonator 2 has a flower-shaped slot 29 at its upper end.
In this embodiment: the flower knife groove 29 is arranged at the upper end of the resonator 2, so that the resonator 2 can be conveniently adjusted by the flower knife to control the frequency adjustment of the resonator 2.
It should be noted that the resonator 2 used in the present apparatus is a prior art, and will not be described in detail herein.
The working principle and the using flow of the invention are as follows: the resonators 2 are used for emitting frequency suppression signals, the resonators 2 are arranged in the device shell 1 and have the same distance to generate resonance so as to enhance out-of-band suppression signals, each resonator 2 is respectively connected with a connecting mechanism, the push slide bar 4 slides and rotates in the adjusting cavity 5, the push slide bar 4 is matched with the inner wall of the sliding groove 3 so that the push slide bar 4 does not deviate when sliding in the sliding groove 3, the fixed circular plate 7 is fixed in the adjusting cavity 5, the screw 9 is arranged in the threaded sleeve 8, when the push slide bar 4 is not used, the cross clamping groove 6 and the cross insert 10 are not contacted with each other, when the out-of-band suppression signals are required to be reduced, the adjusting cavity 5 is extruded from the outside, the cross clamping groove 6 is inserted into the cross insert 10 so that the cross clamping groove 6 is meshed with the cross insert 10, then the push slide bar 4 is rotated, the screw 9 is driven to rotate when the push slide bar 4 is pushed, the fixed circular plate 7 is fixed, the threaded sleeve 8 and the screw 9 are in threaded connection so that the screw 9 drives the extruding cylinder 14 to slowly move downwards when rotating, the extruding cylinder 14 so that the connecting mechanisms squeeze the resonators 2, so that the optimal resonators 2 move out, when the resonators 2, when the out of the adjusting device, the out-of the resonance signals, the out-of the resonators 2, the out of the resonance signals, the external resonance signals can be controlled, and the external resonance signals can be suppressed, and the resonance signals can not be required, and the external resonance signals can be reduced, and the resonance signals can be controlled.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a reduce cavity filter of filter out-of-band rejection which characterized in that: comprising the following steps:
a device case (1);
the device comprises a plurality of resonators (2), wherein the resonators (2) are arranged in a plurality, and the resonators (2) are all arranged in a device shell (1);
the adjusting mechanism comprises a sliding groove (3), a pushing sliding rod (4), an adjusting cavity (5), a cross clamping groove (6), a fixed circular plate (7), a threaded sleeve (8), a screw rod (9), a cross insertion block (10) and an extrusion cylinder (14), wherein the sliding groove (3) is formed at the upper end of the device shell (1), the pushing sliding rod (4) is slidably connected in the sliding groove (3), the adjusting cavity (5) is formed at the lower inner wall of the sliding groove (3), the cross clamping groove (6) is formed at the lower end of the pushing sliding rod (4), the fixed circular plate (7) is fixedly connected to the circumferential inner wall of the adjusting cavity (5), the threaded sleeve (8) is fixedly connected to the lower end of the fixed circular plate (7), the screw rod (9) is in the threaded sleeve (8), the cross insertion block (10) is formed at the upper end of the screw rod (9) and matched with the cross clamping groove (6), and the extrusion cylinder (14) is fixedly connected to the lower end of the screw rod (9).
The connecting mechanisms are provided with a plurality of groups, and the plurality of groups of connecting mechanisms are arranged in the device shell (1);
the resetting mechanisms are provided with a plurality of groups, and each group of resetting mechanism is arranged in the device shell (1) and connected with the connecting mechanism.
2. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 1, wherein: each group of connecting mechanism comprises an extruded block (15), a connecting rod (16), a connecting groove (20), a T-shaped sliding groove (22) and a T-shaped sliding block (24), wherein the connecting groove (20) is formed in the lower inner wall of the device shell (1), the T-shaped sliding groove (22) is formed in one side inner wall of the connecting groove (20), the T-shaped sliding block (24) is slidably connected in the T-shaped sliding groove (22), the extruded block (15) is fixedly connected with one side end of the T-shaped sliding block (24) and slides in the connecting groove (20), and the extruded block (15) is fixedly connected with one side end of the connecting rod (16) and is in contact with the extrusion cylinder (14).
3. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 2, wherein: every group reset mechanism all includes reset groove (23), spring push pedal (25) and reset spring (26), reset groove (23) are seted up in the side inner wall of T type spout (22), spring push pedal (25) fixedly connected with one side end of T type slider (24) and at reset inslot (23) slip, reset spring (26) fixedly connected with one side inner wall of reset groove (23) and one side end of spring push pedal (25), resonator (2) fixedly connected with the upper end of T type slider (24).
4. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 3, wherein: the pushing slide rod is characterized in that a pushing circular plate (11) is fixedly connected to the circumferential surface of the pushing slide rod (4), a first spring (13) is fixedly connected to the upper end of the fixed circular plate (7), a spring circular plate (12) is fixedly connected to the upper end of the first spring (13), and the pushing circular plate (11) slides on the upper end of the spring circular plate (12).
5. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 4, wherein: the circumferential surface of the pushing slide bar (4) is fixedly connected with friction lines (17).
6. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 5, wherein: an upper positioning opening (18) is formed in the lower end of the cross clamping groove (6), and a lower positioning opening (19) is formed in the upper end of the cross insertion block (10).
7. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 6, wherein: a plurality of resonant cavities (27) are formed in the device shell (1), and a plurality of resonators (2) are respectively arranged in the resonant cavities (27).
8. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 7, wherein: the upper end of the device shell (1) is provided with a cover plate (28).
9. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 8, wherein: the device shell (1) and the cover plate (28) are made of ceramic materials.
10. A cavity filter for reducing out-of-band rejection of a filter as defined in claim 9, wherein: the upper end of the resonator (2) is provided with a flower knife groove (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063963.XA CN117578053B (en) | 2024-01-17 | 2024-01-17 | Cavity filter for improving out-of-band rejection performance of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063963.XA CN117578053B (en) | 2024-01-17 | 2024-01-17 | Cavity filter for improving out-of-band rejection performance of filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117578053A true CN117578053A (en) | 2024-02-20 |
| CN117578053B CN117578053B (en) | 2024-03-29 |
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| CN202410063963.XA Active CN117578053B (en) | 2024-01-17 | 2024-01-17 | Cavity filter for improving out-of-band rejection performance of filter |
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Citations (11)
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