CN113889726A - Cavity ultra-wide passband filter structure - Google Patents
Cavity ultra-wide passband filter structure Download PDFInfo
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- CN113889726A CN113889726A CN202111288356.6A CN202111288356A CN113889726A CN 113889726 A CN113889726 A CN 113889726A CN 202111288356 A CN202111288356 A CN 202111288356A CN 113889726 A CN113889726 A CN 113889726A
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- 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
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Abstract
The invention discloses a cavity ultra-wide passband filter structure, which belongs to the technical field of filters and comprises a cover plate, wherein the lower side of the cover plate is detachably connected with a cavity, the left side of the cavity is provided with an OUPUT output copper sheet, the OUPUT output copper sheet is detachably connected in the cavity through an OUPUT output copper sheet fixing screw, the right side of the cavity is provided with a first inductance copper sheet, the first inductance copper sheet is detachably connected in the cavity through a first inductance copper sheet fixing screw, and the opposite side of the first inductance copper sheet relative to the longitudinal central axis of the cavity is provided with a second inductance copper sheet. Time is saved, and efficiency is improved.
Description
Technical Field
The invention relates to the technical field of filters, in particular to a cavity ultra-wide passband filter structure.
Background
The filter is a device or circuit which has processing function to the signal, and the main function is: the filter is widely applied to various electronic equipment to filter noise in the signal transmission process, so that the electronic equipment has better working performance;
in the field of filters, duplexers and multiplexers, because of the requirement of indexes, 2 passbands or a plurality of passbands need to be integrated on a cavity, namely, several channels have several input connectors, all the channels are collected to an output connector after passing through the interior of the cavity, the index requirement of relative inhibition is also provided between every two channels, a designer can increase capacitive coupling or inductive coupling to meet the customer index according to the requirement of the indexes, but for the cavity filter series, the generally used frequency band is relatively low, the total passband is relatively narrow, when the total bandwidth is required to be wide, the port coupling at the output position is required to be relatively strong and difficult to realize, generally, the realization is realized by virtue of the topological structure of a common cavity, but most of the common cavity cannot be used due to the limitation of the appearance, the design difficulty is greatly improved, and the design period is prolonged, is not beneficial to occupying the market.
Disclosure of Invention
The invention aims to solve the problems that port coupling at an output position is high and difficult to realize when the total bandwidth is required to be wide and the realization is required by means of a topological structure of a common cavity in the prior art, and provides a cavity ultra-wide passband filter structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cavity ultra-wide passband filter structure comprising:
the apron, the apron downside can be dismantled and be connected with the cavity, the cavity left side is provided with OUPUT output copper sheet, OUPUT output copper sheet can be dismantled through OUPUT output copper sheet set screw and connect in the cavity, the cavity right side is provided with first inductance copper sheet, first inductance copper sheet can be dismantled in the cavity through first inductance copper sheet set screw, first inductance copper sheet is provided with second inductance copper sheet for the opposite side of the vertical axis of cavity, second inductance copper sheet can be dismantled through second inductance copper sheet set screw and connect in the cavity, second inductance copper sheet and OUPUT output copper sheet are at the homonymy of the vertical axis of cavity, be provided with first screw hole in the middle of the cavity, be provided with on the first screw hole rather than screw assorted inductance copper sheet support piece, inductance copper sheet support piece upside is provided with the electric capacity copper sheet, inductance copper sheet support piece and electric capacity copper sheet realize dismantling through electric capacity copper sheet set screw and cavity and connect the connection copper sheet support piece .
Preferably, an INPUT copper sheet is arranged on the right side of the cavity, the INPUT copper sheet is detachably connected into the cavity through an INPUT copper sheet fixing screw, and the INPUT copper sheet and the first inductance copper sheet are arranged on the same side of the longitudinal central axis of the cavity.
Preferably, an INPUT connector is fixedly connected to the outer wall of the right side of the cavity, and a convex head inserted into the cavity at the left side of the INPUT connector is connected with an INPUT copper sheet.
Preferably, an INPUT copper sheet is arranged on the right side of the cavity, the INPUT copper sheet is detachably connected in the cavity through an INPUT copper sheet fixing screw, and the INPUT copper sheet are located on the same side of the longitudinal central axis of the cavity.
Preferably, an INPUT connector is arranged on the outer wall of the right side of the cavity, and a convex head inserted into the cavity on the left side of the INPUT connector is connected with an INPUT copper sheet.
Preferably, the INPUT joint is detachably connected to the cavity through NPUT INPUT joint fixing screws, the NPUT INPUT joint fixing screws are totally 4, and the 4 NPUT INPUT joint fixing screws are uniformly distributed at four corners of the INPUT joint fixing member.
Preferably, the outer wall of the left side of the cavity is fixedly connected with an output connector, and the right side of the output connector is inserted into the raised head in the cavity and connected with the OUPUT output copper sheet.
Preferably, the cover plate is provided with cover plate fixing screws, the cavity is provided with second threaded holes matched with the cover plate fixing screws in number and shape, and the cover plate and the cavity are detachably connected through the cover plate fixing screws.
Preferably, the cover plate is detachably connected with 36 tuning screws, and the 36 tuning screws are inserted into the cavity through the cover plate.
Preferably, the vertical height of the OUPUT output copper sheet, the first inductance copper sheet fixing screw and the second inductance copper sheet fixing screw fixed in the cavity is smaller than the vertical height of the outer wall of the cavity.
Compared with the prior art, the invention provides a cavity ultra-wide passband filter structure, which has the following beneficial effects:
this cavity ultra-wide passband filter structure, the port coupling demand of output position is stronger when solving needs total bandwidth ratio broad among the prior art, be difficult to realize, need come the problem with the help of the topological structure in public chamber, a single chamber of channel sharing through two close frequency channels, through setting up OUPUT output copper sheet, first inductance copper sheet, second inductance copper sheet and electric capacity copper sheet are constituteed, use a special construction that the copper sheet links to each other and obtains before with another channel and this single chamber, save time, and the lifting efficiency, the difficult and easy degree reduces, moreover, the steam generator is simple in structure.
Drawings
Fig. 1 is a schematic perspective view of an ultra-wide passband cavity filter structure according to the present invention;
fig. 2 is a structural plan view of an ultra-wide cavity passband filter structure according to the present invention;
fig. 3 is a front view of a structure of a cavity ultra-wide passband filter structure according to the present invention;
fig. 4 is a left side view of a structure of a cavity ultra-wide passband filter structure according to the present invention;
fig. 5 is a schematic view of a uncapped three-dimensional structure of a cavity ultra-wide passband filter structure according to the present invention;
fig. 6 is a top view of a cover-removing structure of an ultra-wide passband cavity filter according to the present invention;
fig. 7 is a right side view of a uncapped cavity ultra-wide passband filter structure according to the present invention.
In the figure: 1. a cover plate; 2. a cavity; 3. a tuning screw; 4. a cover plate fixing screw; 5. INPUT1 INPUT connector; 6. INPUT2 INPUT connector; 7. NPUT2 input joint set screws; 8. an output connector; 9. INPUT1 INPUTs copper sheets; 10. INPUT1 INPUT copper sheet fixing screws; 11. INPUT2 INPUTs copper sheets; 12. INPUT2 INPUT copper sheet fixing screws; 13. OUPUT outputs copper sheets; 14. OUPUT outputs copper sheet fixing screws; 15. a first inductance copper sheet fixing screw; 16. a first inductor copper sheet; 17. a second inductor copper sheet; 18. a second inductance copper sheet fixing screw; 19. an inductance copper sheet support; 20. a capacitor copper sheet; 21. and the capacitor copper sheet is fixed on the screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-7, a cavity ultra-wide passband filter structure, comprising:
the cover plate 1 is detachably connected with a cavity 2 at the lower side of the cover plate 1, a detachable connection mode is used, the cover plate 1 is convenient to detach, and the internal structure of the cavity 2 is convenient to assemble, an OUPUT output copper sheet 13 is arranged at the left side of the cavity 2, the OUPUT output copper sheet 13 is detachably connected in the cavity 2 through an OUPUT output copper sheet fixing screw 14 and is convenient to mount and replace, a first inductance copper sheet 16 is arranged at the right side of the cavity 2, the first inductance copper sheet 16 is detachably connected in the cavity 2 through a first inductance copper sheet fixing screw 15 and is convenient to mount and replace, a second inductance copper sheet 17 is arranged at the opposite side of the first inductance copper sheet 16 relative to the longitudinal central axis of the cavity 2, the second inductance copper sheet 17 is detachably connected in the cavity 2 through a second inductance copper sheet fixing screw 18 and is convenient to mount and replace, and the second inductance copper sheet 17 and the OUPUT output copper sheet 13 are at the same side of the longitudinal central axis of the cavity 2, a first threaded hole is formed in the middle of the cavity 2, an inductance copper sheet supporting piece 19 matched with the threaded hole is arranged on the first threaded hole, a capacitance copper sheet 20 is arranged on the upper side of the inductance copper sheet supporting piece 19, the inductance copper sheet supporting piece 19 and the capacitance copper sheet 20 are detachably connected with the cavity 2 through a capacitance copper sheet fixing screw 21, and the detachable connection is convenient to install and replace;
an INPUT copper sheet 9 of INPUT1 is arranged on the right side of the cavity 2, the INPUT copper sheet 9 of INPUT1 is detachably connected into the cavity 2 through an INPUT copper sheet fixing screw 10 of INPUT1 and is convenient to mount and replace, the INPUT copper sheet 9 of INPUT1 and the first inductance copper sheet 16 are arranged on the same side of the longitudinal central axis of the cavity 2, an INPUT connector 5 of INPUT1 is fixedly connected to the outer wall of the right side of the cavity 2, and a raised head inserted into the cavity 2 on the left side of the INPUT connector 5 of INPUT1 is connected with the INPUT copper sheet 9 of INPUT 1;
an INPUT copper sheet 11 of INPUT2 is arranged on the right side of the cavity 2, the INPUT copper sheet 11 of INPUT2 is detachably connected into the cavity 2 through an INPUT copper sheet fixing screw 12 of INPUT2 and is convenient to mount and replace, the INPUT copper sheet 11 of INPUT2 and the INPUT copper sheet 9 of INPUT1 are positioned on the same side of a longitudinal central axis of the cavity 2, an INPUT connector 6 of INPUT2 is arranged on the outer wall of the right side of the cavity 2, and a raised head inserted into the cavity 2 on the left side of the INPUT connector 6 of INPUT2 is connected with the INPUT copper sheet 11 of INPUT 2;
the INPUT joint 6 of the INPUT joint 2 is detachably connected to the cavity 2 through an NPUT2 INPUT joint fixing screw 7, the detachable connection is convenient for installation and replacement, the NPUT2 INPUT joint fixing screws 7 are totally provided with 4, and the 4 NPUT2 INPUT joint fixing screws 7 are uniformly distributed at four corners of a fixing piece of the INPUT joint 6 of the INPUT joint 2 and are fixed by screws, so that the problem of information transmission caused by poor contact due to loosening of the joint is solved;
an output connector 8 is fixedly connected to the outer wall of the left side of the cavity 2, a raised head inserted into the cavity 2 at the right side of the output connector 8 is connected with an OUPUT output copper sheet 13, a cover plate fixing screw 4 is arranged on the cover plate 1, a second threaded hole matched with the cover plate fixing screw 4 in quantity and shape is arranged in the cavity 2, the cover plate 1 and the cavity 2 are detachably connected through the cover plate fixing screw 4, and the detachable connection is convenient to install and replace;
the cover plate 1 is detachably connected with tuning screws 3, the number of the tuning screws 3 is 36, the 36 tuning screws 3 are inserted into the cavity 2 through the cover plate 1, the tuning screws 3 adjust the frequency band generated in the cavity 2, and the vertical height of the OUPUT output copper sheet 13, the first inductance copper sheet fixing screw 15 and the second inductance copper sheet fixing screw 18 which are fixed into the cavity 2 is smaller than the vertical height of the outer wall of the cavity 2, so that the cover plate fixing screws 4 are tightly attached to the cavity 2 when the cover plate 1 is installed on the cover plate 4;
according to the invention, the problems that the port coupling requirement of an output position is strong and difficult to realize when the total bandwidth is required to be wide in the prior art and the realization is realized by means of a topological structure of a common cavity are solved, the OUPUT output copper sheet 13, the first inductance copper sheet 16, the second inductance copper sheet 17 and the capacitance copper sheet 20 are arranged, a single cavity is shared by two channels with similar frequency bands, and the other channel is connected with the single cavity by using the copper sheet to obtain a special structure, so that the time is saved, the efficiency is improved, the difficulty degree is reduced, and the structure is simple.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A cavity ultra-wide passband filter structure, comprising:
the circuit board comprises a cover plate (1), a cavity (2) is detachably connected to the lower side of the cover plate (1), an OUPUT output copper sheet (13) is arranged on the left side of the cavity (2), the OUPUT output copper sheet (13) is detachably connected into the cavity (2) through an OUPUT output copper sheet fixing screw (14), a first inductance copper sheet (16) is arranged on the right side of the cavity (2), the first inductance copper sheet (16) is detachably connected into the cavity (2) through a first inductance copper sheet fixing screw (15), a second inductance copper sheet (17) is arranged on the opposite side of the first inductance copper sheet (16) relative to the longitudinal central axis of the cavity (2), the second inductance copper sheet (17) is detachably connected into the cavity (2) through a second inductance copper sheet fixing screw (18), and the second inductance copper sheet (17) and the OUPUT output copper sheet (13) are arranged on the same side of the longitudinal central axis of the cavity (2), the inductor copper sheet fixing device is characterized in that a first threaded hole is formed in the middle of the cavity (2), an inductor copper sheet supporting piece (19) matched with the first threaded hole is arranged on the first threaded hole, a capacitor copper sheet (20) is arranged on the upper side of the inductor copper sheet supporting piece (19), and the inductor copper sheet supporting piece (19) and the capacitor copper sheet (20) are detachably connected through a capacitor copper sheet fixing screw (21) and the cavity (2).
2. The cavity ultra-wide passband filter structure according to claim 1, wherein an INPUT1 copper sheet (9) is arranged on the right side of the cavity (2), the INPUT1 copper sheet (9) is detachably connected in the cavity (2) through an INPUT1 copper sheet fixing screw (10), and the INPUT1 copper sheet (9) and the first inductance copper sheet (16) are on the same side of the longitudinal central axis of the cavity (2).
3. The ultra-wide passband filter structure of the cavity as recited in claim 2, wherein an INPUT connector (5) of INPUT1 is fixedly connected to the outer wall of the right side of the cavity (2), and a convex head inserted into the cavity (2) at the left side of the INPUT connector (5) of INPUT1 is connected with the INPUT copper sheet (9) of INPUT 1.
4. The cavity ultra-wide passband filter structure according to claim 2, wherein an INPUT2 copper sheet (11) is arranged on the right side of the cavity (2), the INPUT2 copper sheet (11) is detachably connected in the cavity (2) through an INPUT2 copper sheet fixing screw (12), and the INPUT2 copper sheet (11) and the INPUT1 copper sheet (9) are positioned on the same side of the longitudinal central axis of the cavity (2).
5. The ultra-wide passband filter structure of the cavity as recited in claim 4, wherein the INPUT connector (6) of INPUT2 is arranged on the outer wall of the right side of the cavity (2), and the boss inserted into the cavity (2) at the left side of the INPUT connector (6) of INPUT2 is connected with the INPUT copper sheet (11) of INPUT 2.
6. The cavity ultra-wide passband filter structure according to claim 5, wherein the INPUT connector (6) of the INPUT2 is detachably connected to the cavity (2) through an NPUT2 INPUT connector fixing screw (7), the NPUT2 INPUT connector fixing screw (7) is provided with 4, and the 4 NPUT2 INPUT connector fixing screws (7) are uniformly distributed at four corners of the INPUT connector (6) fixing piece of the INPUT connector 2.
7. The cavity ultra-wide passband filter structure according to claim 1, wherein an output connector (8) is fixedly connected to the outer wall of the left side of the cavity (2), and a raised head inserted into the cavity (2) at the right side of the output connector (8) is connected with the OUPUT output copper sheet (13).
8. The cavity ultra-wide passband filter structure according to claim 1, wherein the cover plate (1) is provided with cover plate fixing screws (4), the cavity (2) is provided with second threaded holes matched with the cover plate fixing screws (4) in number and shape, and the cover plate (1) and the cavity (2) are detachably connected through the cover plate fixing screws (4).
9. The cavity ultra-wide passband filter structure according to claim 1, wherein the cover plate (1) is detachably connected with tuning screws (3), the tuning screws (3) are totally provided with 36, and the 36 tuning screws (3) are inserted into the cavity (2) through the cover plate (1).
10. The cavity ultra-wide passband filter structure according to claim 1, wherein the vertical height of the OUPUT output copper sheet (13), the first inductance copper sheet fixing screw (15) and the second inductance copper sheet fixing screw (18) fixed in the cavity (2) is smaller than the vertical height of the outer wall of the cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288356.6A CN113889726A (en) | 2021-11-02 | 2021-11-02 | Cavity ultra-wide passband filter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288356.6A CN113889726A (en) | 2021-11-02 | 2021-11-02 | Cavity ultra-wide passband filter structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113889726A true CN113889726A (en) | 2022-01-04 |
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ID=79015366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111288356.6A Pending CN113889726A (en) | 2021-11-02 | 2021-11-02 | Cavity ultra-wide passband filter structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113889726A (en) |
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2021
- 2021-11-02 CN CN202111288356.6A patent/CN113889726A/en active Pending
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