阅读说明：本技术 一种微调频率耦合谐振器结构 (Fine-tuning frequency coupling resonator structure ) 是由 史作毅 梁文超 汪亭 于 2021-11-02 设计创作，主要内容包括：本发明公开了一种微调频率耦合谐振器结构,属于滤波器技术领域,微调频率耦合谐振器结构,包括腔体,所述腔体上侧可拆卸连接有盖板,所述盖板,所述盖板上设置有调节螺孔,所述调节螺孔内插接有频率主调节螺杆,所述频率主调节螺杆通过频率主调节螺杆锁紧螺母可拆卸连接在盖板上,所述频率主调节螺杆上设置有附属螺孔,所述附属螺孔内插接有频率主调节螺杆附属螺杆,所述频率主调节螺杆附属螺杆通过频率主调节螺杆附属螺杆锁紧螺母可拆卸连接在频率主调节螺杆上,本发明在调节过程中频率达到预定范围内在调试内部增加的辅助螺杆而得到不同的频率,两个单腔之间的容性耦合微弱变化的效果,降低了高次模的产生。(The invention discloses a fine-tuning frequency coupling resonator structure, which belongs to the technical field of filters and comprises a cavity, wherein the upper side of the cavity is detachably connected with a cover plate, the cover plate is provided with a regulating screw hole, a main frequency regulating screw rod is inserted in the regulating screw hole, the main frequency regulating screw rod is detachably connected on the cover plate through a main frequency regulating screw rod locking nut, the main frequency regulating screw rod is provided with an auxiliary screw hole, a main frequency regulating screw rod auxiliary screw rod is inserted in the auxiliary screw hole, the main frequency regulating screw rod auxiliary screw rod is detachably connected on the main frequency regulating screw rod through the main frequency regulating screw rod auxiliary screw rod locking nut, the frequency reaches an auxiliary screw rod added in a preset range during the regulating process to obtain different frequencies, and the effect of weak capacitive coupling change between two single cavities is achieved, the generation of higher order modes is reduced.)

1. A fine-tune frequency-coupled resonator structure, comprising:

cavity (2), cavity (2) upside can be dismantled and be connected with apron (1), be provided with the regulation screw on apron (1), it has frequency main adjusting screw (7) to peg graft in the regulation screw, frequency main adjusting screw (7) can be dismantled through frequency main adjusting screw lock nut (8) and connect on apron (1), be provided with the affiliated screw on frequency main adjusting screw (7), it has frequency main adjusting screw affiliated screw (9) to peg graft in the affiliated screw, frequency main adjusting screw affiliated screw (9) can be dismantled through frequency main adjusting screw affiliated screw lock nut (10) and connect on frequency main adjusting screw (7).

2. The structure of a vernier frequency coupled resonator according to claim 1, wherein 3 frequency master adjusting screws (7) are provided, and a slave adjusting screw (12) is provided between the gaps of the 3 frequency master adjusting screws (7), and the slave adjusting screw (12) is detachably connected to the cover plate (1).

3. The structure of a vernier frequency coupled resonator as claimed in claim 1, wherein the left end of the cavity (2) is provided with an input connector (3), and the input connector (3) is detachably connected to the outer wall of the cavity (2) by an input connector fixing screw (4).

4. A structure as claimed in claim 3, characterized in that said input terminal fixing screws (4) are provided in total in 4, and 4 of said input terminal fixing screws (4) are uniformly distributed at the four corners of the input terminal (3) fixing member.

5. The fine-tuning frequency-coupled resonator structure according to claim 4, wherein an input hole (302) is formed in the left side of the cavity (2), the input connector (3) comprises an input fixing connector (301), an input fixing rod (304) and an input connecting rod (303), one end of the input fixing rod (304) is inserted into the input fixing connector (301), the other end of the input fixing rod is inserted into the input fixing connector (302), one end of the input connecting rod (303) is located in the input fixing rod (304), the other end of the input connecting rod is located in the cavity (2), and the input fixing connector (301) is detachably connected to the cavity (2) through an input connector fixing screw (4).

6. The structure of a frequency-tuned coupled resonator according to claim 1, wherein the right end of the cavity (2) is provided with an output connector (5), and the output connector (5) is detachably connected to the outer wall of the cavity (2) through an output connector fixing screw (6).

7. The structure of claim 6, wherein the output connector fixing screws (6) are provided with 4 output connector fixing screws (6), and the 4 output connector fixing screws (6) are uniformly distributed at four corners of the output connector (5) fixing piece.

8. The fine-tuning frequency-coupled resonator structure according to claim 7, wherein an output hole (502) is formed in the right side of the cavity (2), the output connector (5) comprises an output fixing connector (501), an output fixing rod (504) and an output connecting rod (503), one end of the output fixing rod (504) is inserted into the output fixing connector (501), the other end of the output fixing rod is inserted into the output hole (502), one end of the output connecting rod (503) is located in the output fixing rod (504), the other end of the output connecting rod is located in the cavity (2), and the output fixing connector (501) is detachably connected to the cavity (2) through an output connector fixing screw (6).

9. The structure of claim 1, wherein the cover plate (1) is provided with cover plate fixing screws (11), the cavity (2) is provided with threaded holes matching the shape and the number of the cover plate fixing screws (11), and the cover plate fixing screws (11) are inserted into the threaded holes to fix the cover plate (1) on the cavity (2).

10. The structure of claim 9, wherein a total of 18 cover plate fixing screws (11) are provided, and 18 cover plate fixing screws (11) are evenly distributed on the cover plate (1).

Technical Field

The invention relates to the technical field of filters, in particular to a fine tuning frequency coupling resonator structure.

Background

The filter is a device or circuit which has processing function to the signal, and the main function is: the filter can be installed on a cable to filter signals transmitted by the cable, so that the cable only transmits signals in a specific frequency band, and the electronic equipment connected with the cable works more stably;

in the design of series products such as a conventional cavity high-frequency filter, a duplexer, a multiplexer and the like, because the required frequency is higher and the pass band width is wider, the frequency becomes abnormal and sensitive in the actual design and design process, and the index is difficult to control.

Disclosure of Invention

The invention aims to solve the problem that a high-frequency cavity filter in the prior art is easy to generate a high-order mode due to high frequency in a debugging process, and provides a fine-tuning frequency coupling resonator structure.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fine tune frequency coupled resonator structure comprising:

the cavity, the cavity upside can be dismantled and be connected with the apron, be provided with the regulation screw on the apron, it has frequency owner adjusting screw to peg graft in the regulation screw, frequency owner adjusting screw passes through frequency owner adjusting screw lock nut and can dismantle the connection on the apron, be provided with the affiliated screw on the frequency owner adjusting screw, it has frequency owner adjusting screw to peg graft in the affiliated screw to attach the screw and attach the screw, frequency owner adjusting screw attaches the screw and can dismantle the connection on frequency owner adjusting screw through frequency owner adjusting screw attach screw lock nut, reduces and produces the influence of higher order mode.

Preferably, the frequency main adjusting screw rods are provided with 3 frequency main adjusting screw rods, and slave adjusting screw rods are arranged between 3 frequency main adjusting screw rod gaps and detachably connected to the cover plate.

Preferably, the cavity left end is provided with the input and connects, the input connects through input joint set screw can dismantle the connection on the cavity outer wall.

Preferably, the number of the input connector fixing screws is 4, and the 4 input connector fixing screws are uniformly distributed at four corners of the input connector fixing piece.

Preferably, the cavity left side is provided with the input hole, the input connects including input fixed joint, input dead lever, input connecting rod, input dead lever one end is pegged graft in input fixed joint, and other one end is pegged graft in, input connecting rod one end is arranged in the input dead lever, and other one end is arranged in the cavity, input fixed joint passes through input joint set screw and can dismantle the connection on the cavity.

Preferably, the cavity right-hand member is provided with output joint, output joint passes through output joint set screw and can dismantle the connection on the cavity outer wall.

Preferably, the number of the output joint fixing screws is 4, and the 4 output joint fixing screws are uniformly distributed at four corners of the output joint fixing piece.

Preferably, the cavity right side is provided with the delivery outlet, the output connects including output fixed joint, output dead lever, output connecting rod, output dead lever one end is pegged graft in output fixed joint, and one end is pegged graft in the delivery outlet in addition, output connecting rod one end is arranged in the output dead lever, and one end is arranged in the cavity in addition, output fixed joint passes through output joint set screw and can dismantle the connection on the cavity.

Preferably, the cover plate is provided with cover plate fixing screws, the cavity is provided with cavity threaded holes matched with the cover plate fixing screws in shape and quantity, and the cover plate fixing screws are inserted into the cavity threaded holes to fix the cover plate on the cavity.

Preferably, the cover plate fixing screws are provided with 18 in total, and the 18 cover plate fixing screws are uniformly distributed on the cover plate.

Compared with the prior art, the invention provides a fine tuning frequency coupling resonator structure, which has the following beneficial effects:

1. the fine-tuning frequency coupling resonator structure solves the problem that a high-order mode is easily generated due to high frequency in the debugging process of a high-frequency cavity filter, different frequencies are obtained by adjusting an additional screw rod in the inside of the high-frequency cavity filter within a preset range in the adjusting process, the capacitive coupling between two single cavities has a weak change effect, the generation of the high-order mode is greatly reduced, the processing cost of the cavity is reduced, parts selected by the scheme are national standard universal parts, the cost is low, and the installation and the debugging are convenient;

2. according to the fine-tuning frequency coupling resonator structure, the frequency can be finely tuned in a specified range without influencing the coupling between two single cavities and the generation of the height secondary mode of a product by adding the frequency main debugging screw rod in the cavity.

Drawings

Fig. 1 is an exploded view of a three-dimensional structure of a fine tuning frequency coupled resonator structure according to the present invention;

FIG. 2 is a top view of a fine tuning frequency coupled resonator structure according to the present invention;

FIG. 3 is a cross-sectional view of the A-A lateral interface of a fine tuning frequency coupled resonator structure according to the present invention;

FIG. 4 is an enlarged view of a portion B of a fine tuning frequency coupled resonator structure according to the present invention;

FIG. 5 is an enlarged view of a portion C of a fine tuned frequency coupled resonator structure according to the present invention;

FIG. 6 is an enlarged view of portion D of a fine tuning frequency coupled resonator structure according to the present invention;

FIG. 7 is a left side view of a fine tuning frequency coupled resonator structure according to the present invention;

fig. 8 is an uncapped top view of a fine tuned frequency coupled resonator structure in accordance with the present invention.

In the figure: 1. a cover plate; 2. a cavity; 3. an input connector; 301. inputting the fixed joint; 302. an input aperture; 303. an input connecting rod; 304. inputting a fixed rod; 4. an input joint fixing screw; 5. an output connector; 501. an output fixed joint; 502. an output aperture; 503. an output connecting rod; 504. an output fixing rod; 6. an output connector fixing screw; 7. a frequency master adjusting screw; 8. a frequency main adjusting screw locking nut; 9. the frequency main adjusting screw rod is attached to the screw rod; 10. the frequency main adjusting screw rod is attached with a screw rod locking nut; 11. a cover plate fixing screw; 12. and (4) a slave adjusting 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. 1-8, a fine tune frequency coupled resonator structure comprising:

the cavity 2, the upper side of the cavity 2 is detachably connected with a cover plate 1, the cover plate 1 is convenient to open to observe the internal structure and replace workpieces by using a detachable connection mode, the cover plate 1 is provided with an adjusting screw hole, a frequency main adjusting screw 7 is inserted in the adjusting screw hole, the frequency main adjusting screw 7 is detachably connected to the cover plate 1 through a frequency main adjusting screw locking nut 8, the insertion depth of the frequency main adjusting screw 7 is convenient to adjust, an auxiliary screw hole is arranged on the frequency main adjusting screw 7, a frequency main adjusting screw auxiliary screw 9 is inserted in the auxiliary screw hole, the frequency main adjusting screw auxiliary screw 9 is detachably connected to the frequency main adjusting screw 7 through a frequency main adjusting screw auxiliary screw locking nut 10, the insertion depth of the frequency main adjusting screw auxiliary screw 9 is convenient to adjust, the influence of high order modes is reduced, and the frequency main adjusting screw 7 is provided with 3 in total, a slave adjusting screw 12 is arranged between the cracks of the 3 frequency master adjusting screws 7, the slave adjusting screw 12 is detachably connected to the cover plate 1, and the internal frequency of the cavity is adjusted in an auxiliary manner;

the left end of the cavity 2 is provided with an input joint 3, the input joint 3 is detachably connected on the outer wall of the cavity 2 through an input joint fixing screw 4, the input joint fixing screw 4 is provided with 4, the 4 input joint fixing screws 4 are uniformly distributed at four corners of a fixing part of the input joint 3, the four corners are all fixed, the stability of the joint is ensured, the risk of poor signal contact caused by screw loosening is reduced, the left side of the cavity 2 is provided with an input hole 302, the input joint 3 comprises an input fixing joint 301, an input fixing rod 304 and an input connecting rod 303, one end of the input fixing rod 304 is inserted in the input fixing joint 301, the other end is inserted in the 302, one end of the input connecting rod 303 is positioned in the input fixing rod 304, the other end is positioned in the cavity 2, the input fixing joint 301 is detachably connected on the cavity 2 through the input joint fixing screw 4, carrying out signal transmission;

the right end of the cavity 2 is provided with an output connector 5, the output connector 5 is detachably connected on the outer wall of the cavity 2 through an output connector fixing screw 6, the output connector fixing screw 6 is provided with 4 output connector fixing screws 6, the 4 output connector fixing screws 6 are uniformly distributed at four corners of a fixing part of the output connector 5, the four corners are all fixed, the stability of the connector is guaranteed, the risk of poor signal contact caused by screw loosening is reduced, the right side of the cavity 2 is provided with an output hole 502, the output connector 5 comprises an output fixing connector 501, an output fixing rod 504 and an output connecting rod 503, one end of the output fixing rod 504 is inserted in the output fixing connector 501, the other end of the output fixing rod 504 is inserted in the output hole 502, one end of the output connecting rod 503 is positioned in the output fixing rod 504, the other end of the output fixing connector 501 is positioned in the cavity 2, and the output fixing connector 501 is detachably connected on the cavity 2 through the output connector fixing screw 6, carrying out signal transmission;

the cover plate 1 is provided with cover plate fixing screws 11, the cavity 2 is provided with cavity threaded holes matched with the cover plate fixing screws 11 in shape and quantity, the cover plate fixing screws 11 are inserted into the cavity threaded holes to fix the cover plate 1 on the cavity 2, the cover plate fixing screws 11 are totally provided with 18, and the 18 cover plate fixing screws 11 are uniformly distributed on the cover plate 1, so that the stability of the cover plate 1 is guaranteed, and the risk of poor signal contact caused by screw loosening is reduced;

the invention solves the problem that a high-frequency cavity filter is easy to generate a high-order mode due to higher frequency in the debugging process, the frequency reaches a preset range in the adjusting process, different frequencies are obtained by adding the auxiliary screw rod 9 of the main frequency debugging screw rod in the main frequency debugging screw rod 7 in the cavity, and the effect of weak capacitive coupling change between two single cavities is achieved, so that the generation of the high-order mode is greatly reduced, meanwhile, the processing cost of the cavity is reduced, the selected parts are national standard universal parts, the cost is low, the installation and debugging are convenient, the coupling between the two single cavities is not influenced, and the probability of generating the high-order mode of a product is reduced.

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.