阅读说明：本技术 一种单通道滤波器实现多通道滤波器 (Multi-channel filter realized by single-channel filter ) 是由 史作毅 汪亭 梁文超 于 2021-10-29 设计创作，主要内容包括：本发明公开了一种单通道滤波器实现多通道滤波器,属于通讯滤波器多工器领域,包括腔体,所述腔体顶部连接有盖板,所述盖板上螺纹连接有调谐螺钉,所述腔体和所述盖板均设有相配合的盖板螺孔,所述盖板螺孔内连接有盖板固定螺钉,所述盖板固定螺钉均与盖板的顶部外壁相抵,所述腔体的底部内壁设有频率点谐振柱,所述腔体前侧安装有四个接头,所述四个接头为PORT1接头、PORT2接头、PORT3接头和PORT4接头,所述PORT1接头、所述PORT2接头、所述PORT3接头和所述PORT4接头的内芯部分都伸入进腔体中,本发明能连接任意两个接头得到不同的滤波器带宽,减少设计时间,降低资源浪费,提高工作效率。(The invention discloses a multi-channel filter realized by a single-channel filter, belonging to the field of communication filter multiplexers and comprising a cavity, the top of the cavity is connected with a cover plate, the cover plate is in threaded connection with a tuning screw, the cavity and the cover plate are both provided with matched cover plate screw holes, the cover plate screw holes are internally connected with cover plate fixing screws which are all propped against the outer wall of the top of the cover plate, the inner wall of the bottom of the cavity is provided with a frequency point resonance column, the front side of the cavity is provided with four connectors, the four connectors are PORT1 connector, PORT2 connector, PORT3 connector and PORT4 connector, the PORT1 junction, the PORT2 junction, the PORT3 junction, and the inner core portion of the PORT4 junction all extend into the cavity, the invention can connect any two connectors to obtain different filter bandwidths, reduce design time, reduce resource waste and improve working efficiency.)

1. The utility model provides a single channel filter realizes multichannel filter, includes cavity (2), its characterized in that, cavity (2) top is connected with apron (1), threaded connection has tuning screw (4) on apron (1), the bottom inner wall of cavity (2) is equipped with frequency point resonance post (13), four joints are installed to cavity (2) front side, four joints are PORT1 joint (5), PORT2 joint (7), PORT3 joint (9) and PORT4 joint (11) respectively, PORT1 joint (5), PORT2 joint (7), PORT3 joint (9) with the interior core portion that PORT4 connected (11) all stretches into in cavity (2).

2. A single-channel filter implementation multi-channel filter according to claim 1, wherein the number of the tuning screws (4) is nine, the tuning screws (4) are uniformly distributed on the position of the horizontal axis at the top end of the cover plate (1), and the outer wall of the tuning screws (4) is connected with fixing nuts which abut against the outer wall at the top of the cover plate (1).

3. The multichannel filter for realizing the single-channel filter of claim 1, wherein the cavity (2) and the cover plate (1) are provided with matching cover plate screw holes, cover plate fixing screws (3) are connected in the cover plate screw holes, the number of the cover plate fixing screws (3) is 10-20, and each cover plate fixing screw (3) abuts against the outer wall of the top of the cover plate (1).

4. A single-channel filter implementation multi-channel filter according to claim 1, characterized in that the frequency point resonance columns (13) are five in total, the frequency point resonance columns (13) are evenly distributed inside the cavity (2), grooves are formed in the frequency point resonance columns (13), and the tuning screws (4) extend into the grooves of the frequency point resonance columns (13).

5. The multi-channel filter for realizing the single-channel filter of claim 1, wherein the fixing plate portion of the PORT1 joint (5) and the cavity (2) are both provided with matching PORT1 joint screw holes, the PORT1 joint screw holes are internally connected with PORT1 fixing screws (6), the number of the PORT1 fixing screws (6) is four, and each of the PORT1 fixing screws (6) abuts against the outer wall of the fixing plate of the PORT1 joint (5).

6. The multi-channel filter for realizing the single-channel filter of claim 1, wherein the fixing plate portion of the PORT2 joint (7) and the cavity (2) are both provided with matching PORT2 joint screw holes, the PORT2 joint screw holes are internally connected with PORT2 fixing screws (8), the number of the PORT2 fixing screws (8) is four, and each of the PORT2 fixing screws (8) abuts against the outer wall of the fixing plate of the PORT2 joint (7).

7. The multi-channel filter for realizing the single-channel filter of claim 1, wherein the fixing plate portion of the PORT3 joint (9) and the cavity (2) are both provided with matching PORT3 joint screw holes, the PORT3 joint screw holes are internally connected with PORT3 fixing screws (10), the number of the PORT3 fixing screws (10) is four, and each PORT3 fixing screw (10) abuts against the outer wall of the fixing plate of the PORT3 joint (9).

8. The single-channel filter implementation multichannel filter of claim 1, characterized in that the fixing plate portion of the PORT4 joint (11) and the chamber (2) are both provided with matching PORT4 joint screw holes, the PORT4 joint screw hole is internally connected with PORT4 fixing screws (12), the number of the PORT4 fixing screws (12) is four, and each of the PORT4 fixing screws (12) abuts against the outer wall of the fixing plate of the PORT4 joint (11).

9. A single-channel filter implementation multichannel filter according to claim 1, characterized in that the bandpass width of each of the PORT1 junction (5), the PORT2 junction (7), the PORT3 junction (9), and the PORT4 junction (11) is different.

10. A single-channel filter implementing multi-channel filter according to claim 1, wherein the inner core part of each of the PORT1 connector (5), the PORT2 connector (7), the PORT3 connector (9) and the PORT4 connector (11) is located right in front of the frequency point resonance column (13).

Technical Field

The invention belongs to the field of communication filter multiplexers, and particularly relates to a multi-channel filter realized by a single-channel filter.

Background

Currently, in the field of wireless communication, due to different designs of base stations, operators have different definitions for external connectors of products with the same frequency band, and therefore, in the design, research, development and manufacturing processes, the designated connector model needs to be determined according to different requirements of customers.

Because the filter belongs to the customization piece, the customer often can propose the frequency channel difference not big, but the customization filter demand that the band-pass width is different, according to different demands, the designer can all design alone for every type of filter under the condition that the bandwidth index is not close, must lead to the fact wasting of resources like this, unfavorable factors such as time extension.

Disclosure of Invention

The invention provides a single-channel filter for realizing a multi-channel filter, aiming at the problems that the bandwidth requirements of the existing filters for clients are different, each filter needs to be designed independently, so that the resource waste is caused, and the working efficiency is low.

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides a single channel filter realizes multichannel filter, includes the cavity, the cavity top is connected with the apron, threaded connection has the tuning screw on the apron, the bottom inner wall of cavity is equipped with frequency point resonance post, four joints are installed to the cavity front side, four joints are PORT1 joint, PORT2 joint, PORT3 joint and PORT4 joint respectively, PORT1 joint PORT2 joint PORT3 joint with the inner core part that PORT4 connected all stretches into in the cavity.

In order to fix the tuning screws on the cover plate, fixing nuts are used for fixing, preferably nine tuning screws are used, the tuning screws are uniformly distributed at the position of the transverse axis of the top end of the cover plate, and the outer walls of the tuning screws are connected with the fixing nuts which are abutted against the outer wall of the top of the cover plate.

In order to fix the cover plate on the upper end of the cavity, preferably, the cavity and the cover plate are provided with cover plate screw holes which are matched with each other, cover plate fixing screws are connected in the cover plate screw holes, the number of the cover plate fixing screws is 10-20, and each cover plate fixing screw abuts against the outer wall of the top of the cover plate.

In order to enable the tuning screws to penetrate into the frequency point resonance columns, preferably, the number of the frequency point resonance columns is five, the frequency point resonance columns are uniformly distributed in the cavity, grooves are formed in the frequency point resonance columns, and the tuning screws penetrate into the grooves of the frequency point resonance columns.

In order to fix the PORT1 joint at the front end of the cavity, preferably, the fixing plate part of the PORT1 joint and the cavity are both provided with matched PORT1 joint screw holes, PORT1 joint screw holes are internally connected with PORT1 fixing screws, the number of PORT1 fixing screws is four, and each PORT1 fixing screw abuts against the outer wall of the fixing plate of the PORT1 joint.

In order to fix the PORT2 joint at the front end of the cavity, preferably, the fixing plate part of the PORT2 joint and the cavity are both provided with matched PORT2 joint screw holes, PORT2 joint screw holes are internally connected with PORT2 fixing screws, the number of PORT2 fixing screws is four, and each PORT2 fixing screw abuts against the outer wall of the fixing plate of the PORT2 joint.

In order to fix the PORT3 joint at the front end of the cavity, preferably, the fixing plate part of the PORT3 joint and the cavity are both provided with matched PORT3 joint screw holes, PORT3 joint screw holes are internally connected with PORT3 fixing screws, the number of PORT3 fixing screws is four, and each PORT3 fixing screw abuts against the outer wall of the fixing plate of the PORT3 joint.

In order to fix the PORT4 joint at the front end of the cavity, preferably, the fixing plate part of the PORT4 joint and the cavity are both provided with matched PORT4 joint screw holes, PORT4 joint screw holes are internally connected with PORT4 fixing screws, the number of PORT4 fixing screws is four, and each PORT4 fixing screw abuts against the outer wall of the fixing plate of the PORT4 joint.

In order to meet the working requirements of different bandwidths, it is preferable that the band width of each of the PORT1 connector, the PORT2 connector, the PORT3 connector and the PORT4 connector is different.

For the connectors to work better, it is preferable that the inner core part of each of the PORT1 connector, the PORT2 connector, the PORT3 connector and the PORT4 connector is located right in front of the resonance column at the frequency point.

Compared with the prior art, the invention provides a multi-channel filter realized by a single-channel filter, and the invention has the following beneficial effects:

the device is characterized in that the part which is not involved is the same as the prior art or can be realized by the prior art, a cover plate fixing screw is firstly used on a cavity to fix a cover plate at the upper end of the cavity, a frequency point resonance column is arranged in the cavity, a fixing nut is used at the upper end of the cover plate to fix a tuning screw, four connectors with different bandwidths are arranged at the front end of the cavity, and through using the connectors with different bandwidths, any two connectors are connected during working to obtain different filter bandwidths and the connectors with other bandwidths can be replaced, so that the requirements of customers are met, the design time of the device can be reduced, the resource waste is reduced, and the working efficiency is improved.

Drawings

Fig. 1 is a top view of a schematic diagram of a single-channel filter implementing a multi-channel filter according to the present invention;

fig. 2 is a front view of a schematic diagram of a single-channel filter implementing a multi-channel filter according to the present invention;

fig. 3 is a rear view of a schematic diagram of a single-channel filter implementing a multi-channel filter according to the present invention;

fig. 4 is a left side view of a schematic diagram of a single-channel filter implementing a multi-channel filter according to the present invention;

fig. 5 is a right side view of a schematic diagram of a single-channel filter implementing a multi-channel filter according to the present invention;

fig. 6 is a top view of a schematic structure diagram of a hidden cover plate of a single-channel filter according to the present invention;

fig. 7 is an overall schematic diagram of a hidden cover plate structure of a single-channel filter according to the present invention;

fig. 8 is an oblique side view of a hidden cover plate structure of a single-channel filter implementing a multi-channel filter according to the present invention.

In the figure: 1. a cover plate; 2. a cavity; 3. a cover plate fixing screw; 4. a tuning screw; 5. a PORT1 connector; 6. PORT1 set screws; 7. a PORT2 connector; 8. PORT2 set screws; 9. a PORT3 connector; 10. PORT3 set screws; 11. a PORT4 connector; 12. PORT4 set screws; 13. the frequency point resonates the column.

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 multichannel filter is realized to single channel filter, including cavity 2, cavity 2 top is connected with apron 1, threaded connection has tuning screw 4 on the apron 1, the bottom inner wall of cavity 2 is equipped with frequency point resonance post 13, four joints are installed to cavity 2 front side, four joints are PORT1 joint 5 respectively, PORT2 joint 7, PORT3 joint 9 and PORT4 joint 11, PORT1 joint 5, PORT2 joint 7, PORT3 joint 9 and PORT4 joint 11's inner core part all stretches into in the cavity 2.

As shown in fig. 1, in order to fix the tuning screws 4 to the cover plate 1, nine tuning screws 4 are used, the tuning screws 4 are uniformly distributed on the horizontal axis position of the top end of the cover plate 1, the fixing nuts are connected to the outer walls of the tuning screws 4, and the fixing nuts are abutted against the top outer wall of the cover plate 1.

As shown in fig. 1 and 6, in order to fix the cover plate 1 on the upper end of the cavity 2, the cavity 2 and the cover plate 1 are both provided with cover plate screw holes which are matched with each other, cover plate fixing screws 3 are connected in the cover plate screw holes, the number of the cover plate fixing screws 3 is 10-20, and each cover plate fixing screw 3 abuts against the outer wall of the top of the cover plate 1.

As shown in fig. 6 and 7, in order to make the tuning screws 4 penetrate into the frequency point resonance columns 13, the number of the frequency point resonance columns 13 is five, the frequency point resonance columns 13 are uniformly distributed in the cavity 2, grooves are formed in the frequency point resonance columns 13, and the tuning screws 4 penetrate into the grooves of the frequency point resonance columns 13.

As shown in fig. 2 and 7, in order to fix the PORT1 joint 5 at the front end of the cavity 2, the fixing plate part of the PORT1 joint 5 and the cavity 2 are both provided with matched PORT1 joint screw holes, PORT1 fixing screws 6 are connected in the PORT1 joint screw holes, the number of PORT1 fixing screws 6 is four, and each PORT1 fixing screw 6 abuts against the outer wall of the fixing plate of the PORT1 joint 5.

As shown in fig. 2 and 7, in order to fix the PORT2 joint 7 at the front end of the cavity 2, the fixing plate part of the PORT2 joint 7 and the cavity 2 are both provided with matched PORT2 joint screw holes, PORT2 fixing screws 8 are connected in the PORT2 joint screw holes, the number of PORT2 fixing screws 8 is four, and each PORT2 fixing screw 8 abuts against the outer wall of the fixing plate of the PORT2 joint 7.

As shown in fig. 2 and 7, in order to fix the PORT3 joint 9 at the front end of the cavity 2, the fixing plate part of the PORT3 joint 9 and the cavity 2 are both provided with matched PORT3 joint screw holes, PORT3 fixing screws 10 are connected in the PORT3 joint screw holes, the number of PORT3 fixing screws 10 is four, and each PORT3 fixing screw 10 abuts against the outer wall of the fixing plate of the PORT3 joint 9.

As shown in fig. 2 and 7, in order to fix the PORT4 joint 11 at the front end of the cavity 2, the fixing plate part of the PORT4 joint 11 and the cavity 2 are both provided with matching PORT4 joint screw holes, PORT4 fixing screws 12 are connected in the PORT4 joint screw holes, the number of PORT4 fixing screws 12 is four, and each PORT4 fixing screw 12 abuts against the outer wall of the fixing plate of the PORT4 joint 11.

In order to meet the working requirements of different bandwidths, the bandpass widths of each of the PORT1 connector 5, the PORT2 connector 7, the PORT3 connector 9 and the PORT4 connector 11 are different.

As shown in fig. 8, for the junction to work better, the internal core portion of each of the PORT1 junction 5, PORT2 junction 7, PORT3 junction 9, and PORT4 junction 11 is located directly in front of the resonant post 13 at the frequency point.

The invention is applied to the field of communication filter multiplexers, firstly, a cover plate fixing screw 3 is used on a cavity 2 to fix a cover plate 1 at the upper end of the cavity 2, a frequency point resonance column is arranged in the cavity 2, a fixing nut is used at the upper end of the cover plate to fix a tuning screw 4, four connectors with different bandwidths are arranged at the front end of the cavity 2, and by using the connectors with different bandwidths, any two connectors can be connected to obtain different filter bandwidths during working, so that the requirements of customers are met, the connectors with other bandwidths can be replaced, the design time of the equipment can be reduced, the resource waste is reduced, and the working efficiency is improved.

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.