CN215771492U - Outdoor broadband combiner - Google Patents
Outdoor broadband combiner Download PDFInfo
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- CN215771492U CN215771492U CN202122328035.6U CN202122328035U CN215771492U CN 215771492 U CN215771492 U CN 215771492U CN 202122328035 U CN202122328035 U CN 202122328035U CN 215771492 U CN215771492 U CN 215771492U
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Abstract
The utility model provides an outdoor broadband combiner, and relates to the technical field of communication. In the outdoor broadband combiner provided by the utility model, a cavity comprises a bottom plate and a side wall, a waterproof cover plate covers the cavity, and a public end interface, a first frequency band interface and a second frequency band interface are all arranged on the side wall of the cavity; the coaxial resonators are arranged in the cavity; the plurality of coaxial resonators are divided into two groups, the first group of coaxial resonators form a first filter, the first filter is connected with the first frequency band interface and the common cavity, the second group of coaxial resonators form a second filter, the second filter is connected with the second frequency band interface and the common cavity, and the common cavity is connected with the common end interface; the connecting end of the common end interface comprises a first portion, a second portion and a third portion, wherein the three portions are cylindrical, the diameter of the first portion is in the middle, the diameter of the second portion is the largest, and the diameter of the third portion is the smallest. The technical scheme of the utility model can improve the flux of the public end interface of the outdoor broadband combiner.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to an outdoor broadband combiner.
Background
In recent years, rapid development of mobile communication requires that signal coverage of a base station antenna is wider and wider, but a space for building a base station is more and more limited, in order to solve the problem, a situation that a plurality of different systems, different frequency bands and even different operators share one station address has occurred, and a development trend that the same base station antenna needs to support a plurality of different frequency bands and different systems simultaneously is objectively promoted.
At present, the radio frequency signals of different systems are separately led out to different antenna radio frequency ports mainly by using a combiner inside an antenna. However, the flux of the common terminal interface in the existing combiner is small, and the practical application is difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model provides an outdoor broadband combiner which can improve the flux of a public end interface of the outdoor broadband combiner.
The utility model provides an outdoor broadband combiner, which adopts the following technical scheme:
this outdoor broadband combiner includes: the antenna comprises a cavity, a waterproof cover plate, a public end interface, a first frequency band interface, a second frequency band interface, a plurality of coaxial resonators and a public cavity; wherein the content of the first and second substances,
the cavity comprises a bottom plate and a side wall which are integrally formed, the waterproof cover plate covers the cavity, and the public end interface, the first frequency band interface and the second frequency band interface are all arranged on the side wall of the cavity;
the coaxial resonators are arranged in the cavity and are integrally formed with the bottom plate of the cavity;
the plurality of coaxial resonators are divided into two groups, the first group of coaxial resonators form a first filter, the first filter is connected with the first frequency band interface and the common cavity, the second group of coaxial resonators form a second filter, the second filter is connected with the second frequency band interface and the common cavity, and the common cavity is connected with the common end interface;
the connecting end of the public end interface comprises a first part, a second part and a third part which are sequentially connected along the direction of the inside of the cavity, the first part, the second part and the third part are cylindrical, the diameter of the first part is centered, the diameter of the second part is the largest, the diameter of the third part is the smallest, and the connecting end of the public end interface is connected with the public cavity.
Optionally, the common port interface, the first frequency band interface and the connection end of the second frequency band interface are all sleeved with insulating sleeves, the connection end of the first frequency band interface is connected with the first filter, and the connection end of the second frequency band interface is connected with the second filter.
Optionally, the insulating sleeve is sleeved on the third portion.
Optionally, the outdoor broadband combiner further includes three lightning protection plates and three inductors, the three lightning protection plates are installed inside the cavity, one ends of the three inductors are respectively located inside the common port interface, the first frequency band interface and the second frequency band interface, and the other ends of the three inductors are respectively connected to one lightning protection plate.
Optionally, the outdoor wideband combiner includes 16 coaxial resonators, 7 coaxial resonators form the first filter, 9 coaxial resonators form the second filter, and a passband of the second filter is higher than a passband of the first filter.
Optionally, the outdoor broadband combiner further includes two capacitive flybars, each of which forms a cross-coupling with two of the coaxial resonators in the second filter.
Optionally, the capacitive flybar is dumbbell-shaped.
Optionally, the passband of the first filter is 1710MHz to 1880MHz, and the passband of the second filter is 1920MHz to 2690 MHz.
Optionally, the coaxial resonator further includes an adjusting cover plate located between the waterproof cover plate and the cavity, the coaxial resonator is provided with an adjusting bolt, and the adjusting cover plate is correspondingly provided with an adjusting hole for exposing the adjusting bolt.
Optionally, the cavity, the waterproof cover plate, the public end interface, the first frequency band interface, the second frequency band interface, the coaxial resonator, and the public cavity are all made of aluminum alloy.
The utility model provides an outdoor broadband combiner, wherein in the outdoor broadband combiner, a connecting end of a common end interface comprises a first part, a second part and a third part which are sequentially connected towards the inside of a cavity, the first part, the second part and the third part are all cylindrical, the diameter of the first part is in the middle, the diameter of the second part is the largest, and the diameter of the third part is the smallest, namely, the common end interface is designed to have step impedance, the diameter of the first part is in the middle, the impedance is in the middle (the same as that in the prior art), the diameter of the second part is the largest, the impedance is the largest (higher than that in the prior art), the diameter of the third part is the smallest, and the impedance is the smallest (lower than that in the prior art), so that the high flux of the common end interface can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective structural view of an outdoor broadband combiner according to an embodiment of the present invention;
fig. 2 is a structure diagram of the interior of a cavity of the outdoor broadband combiner according to the embodiment of the present invention;
FIG. 3 is a block diagram of a common port provided by an embodiment of the present invention;
fig. 4 is a structural diagram of a first frequency band interface according to an embodiment of the present invention;
fig. 5 is a diagram of a position relationship between the lightning protection plate and the inductor according to the embodiment of the utility model;
fig. 6 is a diagram of a positional relationship between an inductor and a first frequency band interface according to an embodiment of the present invention;
FIG. 7 is a block diagram of a capacitive fly rod according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating the position relationship between a capacitive fly rod and a coaxial resonator according to an embodiment of the present invention;
FIG. 9 is a block diagram of a fly rod support provided by an embodiment of the utility model;
fig. 10 is a structural diagram of an adjusting cover plate according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the technical features in the embodiments of the present invention may be combined with each other without conflict.
An embodiment of the present invention provides an outdoor broadband combiner, and specifically, as shown in fig. 1, fig. 2 and fig. 3, fig. 1 is a three-dimensional structure diagram of the outdoor broadband combiner provided in the embodiment of the present invention, fig. 2 is a structure diagram of an interior of a cavity of the outdoor broadband combiner provided in the embodiment of the present invention, and fig. 3 is a structure diagram of a common port provided in the embodiment of the present invention, where the outdoor broadband combiner includes: the antenna comprises a cavity 10, a waterproof cover plate 20, a public end interface 30, a first frequency band interface 40, a second frequency band interface 50, a plurality of coaxial resonators 60 and a public cavity 70; wherein the content of the first and second substances,
the cavity 10 comprises a bottom plate 11 and a side wall 12 which are integrally formed, the waterproof cover plate 20 covers the cavity 10, and the public end interface 30, the first frequency band interface 40 and the second frequency band interface 50 are all arranged on the side wall 12 of the cavity 10;
a plurality of coaxial resonators 60 are disposed inside the cavity 10 and integrally formed with the bottom plate 11 of the cavity 10;
the plurality of coaxial resonators 60 are divided into two groups, the first group of coaxial resonators 60 (e.g., the upper 9 coaxial resonators 60 in fig. 1) form a first filter, the first filter is connected with the first frequency band interface 40 and the common cavity 70, the second group of coaxial resonators 60 (e.g., the lower 7 coaxial resonators 60 in fig. 1) form a second filter, the second filter is connected with the second frequency band interface 50 and the common cavity 70, and the common cavity 70 is connected with the common end interface 30;
the connection end of the common end interface 30 comprises a first part 31, a second part 32 and a third part 33 which are connected in sequence towards the inside of the chamber, the first part 31, the second part 32 and the third part 33 are all cylindrical, the diameter of the first part 31 is central, the diameter of the second part 32 is the largest, the diameter of the third part 33 is the smallest, and the connection end of the common end interface 30 is connected with the common chamber 70.
The utility model provides an outdoor broadband combiner, in the outdoor broadband combiner, the connecting end of a common terminal interface 30 comprises a first part 31, a second part 32 and a third part 33 which are sequentially connected towards the inside of a cavity, the first part 31, the second part 32 and the third part 33 are all cylindrical, the diameter of the first part 31 is centered, the diameter of the second part 32 is the largest, and the diameter of the third part 33 is the smallest, namely, the common terminal interface 30 has a step impedance design, the diameter of the first part 31 is centered, the impedance is centered (consistent with that in the prior art), the diameter of the second part 32 is the largest, the impedance is the largest (higher than that in the prior art), the diameter of the third part 33 is the smallest, and the impedance is the smallest (lower than that in the prior art), thereby realizing high flux of the common terminal interface.
The following embodiments of the present invention describe each structure of the above outdoor broadband combiner in detail. For reasons of space limitation, details of the structure not mentioned may be referred to in the prior art and will not be described herein.
Optionally, as shown in fig. 4, fig. 4 is a structural diagram of the first frequency band interface according to an embodiment of the present invention, where the connection end of the first frequency band interface 40 is a cylinder with a consistent diameter at each position, and the diameter and impedance of the connection end are consistent with those of the prior art. In the first frequency band interface 40 having the structure shown in fig. 4, an insulating sleeve is provided on the left side thereof over a certain length. The specific structure of the second band interface 50 is the same as that of the first band interface 40, and will not be described herein.
Optionally, the common port 30, the first band port 40, and the second band port 50 are all sleeved with an insulating sleeve (not shown in the figure), the connection end of the first band port 40 is connected to the first filter (specifically, connected to one coaxial resonator 60 in the first filter), and the connection end of the second band port 50 is connected to the second filter (specifically, connected to one coaxial resonator 60 in the second filter).
In the common terminal interface 30 having the structure shown in fig. 3, an insulating sleeve is fitted over the third portion 33 thereof.
Because the link that public end interface 30 and public chamber 70 are connected, the link that first frequency channel interface 40 and first filter are connected, and all overlap on the link that second frequency channel interface 50 and second filter are connected and be equipped with the insulation support, therefore, public end interface 30 and public chamber 70, first frequency channel interface 40 and the coaxial resonator 60 that corresponds, direct contact between second frequency channel interface 50 and the coaxial resonator 60 that corresponds, and then at public end interface 30, first frequency channel interface 40 and second frequency channel interface 50 department all form the capacitive coupling, and then compare with the two direct contact of prior art, can obtain bigger energy from each kneck, in order to support higher passband. In addition, the coaxial resonators 60 and the bottom plate 11 of the cavity 10 are integrally formed, so that the interface stability between the coaxial resonators and the bottom plate can be improved, and the consistency of the outdoor broadband combiner can be improved.
Optionally, as shown in fig. 2, fig. 5 and fig. 6, fig. 5 is a position relationship diagram of a lightning protection plate and an inductor according to an embodiment of the present invention, and fig. 6 is a position relationship diagram of an inductor and a first frequency band interface according to an embodiment of the present invention, the outdoor broadband combiner further includes three lightning protection plates 80 and three inductors 90, the three lightning protection plates 80 are installed inside the cavity 10, one ends of the three inductors 90 are respectively located inside the common terminal interface 30, the first frequency band interface 40 and the second frequency band interface 50, and the other ends of the three inductors 90 are respectively connected to one lightning protection plate 80. One end of the inductor 90 is welded to the common terminal interface 30, the first frequency band interface 40 or the second frequency band interface 50, and the other end of the inductor can penetrate through a through hole formed in the lightning protection plate 80 and contact with a side wall of the through hole, so that the inductor is connected to the lightning protection plate 80.
The lightning protection plate 80 and the inductor 90 may be disposed to reduce the performance impact or damage of the outdoor broadband combiner caused by the lightning. Meanwhile, capacitive coupling is formed at the common terminal interface 30, the first frequency band interface 40 or the second frequency band interface 50, and lightning is direct current and cannot pass through the capacitive coupling, so that the influence or damage of the lightning on the performance of the outdoor broadband combiner can be further reduced by the design of the insulating sleeves on the common terminal interface 30, the first frequency band interface 40 or the second frequency band interface 50.
Optionally, as shown in fig. 2, in the embodiment of the present invention, the outdoor wideband combiner includes 16 coaxial resonators, 7 coaxial resonators 60 (7 coaxial resonators located in a lower portion in fig. 2) form a first filter, 9 coaxial resonators 60 (9 coaxial resonators located in an upper portion in fig. 2) form a second filter, and a passband of the second filter is higher than a passband of the first filter. Optionally, the passband of the first filter is 1710MHz to 1880MHz, and the passband of the second filter is 1920MHz to 2690 MHz.
Alternatively, as shown in fig. 2, 7, 8 and 9, fig. 7 is a structural diagram of a capacitive flying bar according to an embodiment of the present invention, fig. 8 is a positional relationship diagram of the capacitive flying bar and a coaxial resonator according to the embodiment of the present invention, fig. 9 is a structural diagram of a flying bar bracket according to the embodiment of the present invention, the outdoor broadband combiner further includes two capacitive flying bars 100, each capacitive flying bar 100 forms cross coupling with two coaxial resonators 60 in the second filter, and the cross coupling can make the working channel of the second filter steeper, thereby increasing the isolation between the working channel of the second filter and the working channel of the first filter. Illustratively, as shown in fig. 2, the capacitive flying bar 100 is dumbbell-shaped, and the relative area between the capacitive flying bar 100 and the coaxial resonator 60 with this structure is large, so that the cross-coupling effect is more obvious.
Illustratively, as shown in fig. 8 and 9, a capacitive fly bar 100 is secured between two coaxial resonators 60 by fly bar brackets 110, forming a cross coupling.
Optionally, as shown in fig. 1 and 10, fig. 10 is a structural diagram of an adjusting cover plate according to an embodiment of the present invention, in the embodiment of the present invention, the coaxial resonator 60 is provided with an adjusting bolt 120, the outdoor broadband combiner further includes an adjusting cover plate 130 located between the waterproof cover plate 20 and the cavity 10, the adjusting cover plate 130 is correspondingly provided with an adjusting hole 140 for exposing the adjusting bolt 120, and the coupling effect between the coaxial resonators 60 can be further adjusted by adjusting a distance between the adjusting bolt 120 and the bottom surface 11 of the cavity 10 without detaching the adjusting cover plate 130.
Optionally, in the embodiment of the present invention, the cavity 10, the waterproof cover plate 20, the public end interface 30, the first frequency band interface 40, the second frequency band interface 50, the coaxial resonator 60, and the public cavity 70 are all made of aluminum alloy. The aluminum alloy has lower cost, better conductivity and no magnetism, is favorable for ensuring that the outdoor broadband combiner has better performance and has lower cost.
Optionally, as shown in fig. 1 and fig. 2, in the embodiment of the present invention, the outdoor wideband combiner further includes two mounting brackets 150, and the outdoor wideband combiner is mounted at a target location, such as a base station antenna, through the two mounting brackets 150.
In addition, the waterproof cover plate 20, the lightning protection plate 80, the debugging cover plate 130, the mounting bracket 150, etc. can be fixed by screws, screw holes, etc., and the details are not repeated here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An outdoor broadband combiner, comprising: the antenna comprises a cavity, a waterproof cover plate, a public end interface, a first frequency band interface, a second frequency band interface, a plurality of coaxial resonators and a public cavity; wherein the content of the first and second substances,
the cavity comprises a bottom plate and a side wall which are integrally formed, the waterproof cover plate covers the cavity, and the public end interface, the first frequency band interface and the second frequency band interface are all arranged on the side wall of the cavity;
the coaxial resonators are arranged in the cavity and are integrally formed with the bottom plate of the cavity;
the plurality of coaxial resonators are divided into two groups, the first group of coaxial resonators form a first filter, the first filter is connected with the first frequency band interface and the common cavity, the second group of coaxial resonators form a second filter, the second filter is connected with the second frequency band interface and the common cavity, and the common cavity is connected with the common end interface;
the connecting end of the public end interface comprises a first part, a second part and a third part which are sequentially connected along the direction of the inside of the cavity, the first part, the second part and the third part are cylindrical, the diameter of the first part is centered, the diameter of the second part is the largest, the diameter of the third part is the smallest, and the connecting end of the public end interface is connected with the public cavity.
2. The outdoor broadband combiner according to claim 1, wherein an insulating sleeve is sleeved on each of the common port interface, the first band interface and the second band interface, the connection end of the first band interface is connected with the first filter, and the connection end of the second band interface is connected with the second filter.
3. The outdoor broadband combiner of claim 2, wherein the insulating sleeve is sleeved on the third portion.
4. The outdoor broadband combiner of claim 1, further comprising three lightning protection plates and three inductors, wherein the three lightning protection plates are installed inside the cavity, one ends of the three inductors are respectively located inside the common port interface, the first band interface and the second band interface, and the other ends of the three inductors are respectively connected to one lightning protection plate.
5. The outdoor wideband combiner of claim 1, where the outdoor wideband combiner includes 16 of the coaxial resonators, 7 of the coaxial resonators constitute the first filter, and 9 of the coaxial resonators constitute the second filter, where the second filter has a higher passband than the first filter.
6. The outdoor broadband combiner of claim 5, further comprising two capacitive flybars, each of the capacitive flybars cross-coupled with two of the coaxial resonators in the second filter.
7. The outdoor broadband combiner of claim 6, wherein the capacitive flybars are dumbbell-shaped.
8. The outdoor wideband combiner of claim 5, where the passband of the first filter is 1710MHz to 1880MHz and the passband of the second filter is 1920MHz to 2690 MHz.
9. The outdoor broadband combiner of claim 1, further comprising an adjusting cover plate located between the waterproof cover plate and the cavity, wherein the coaxial resonator is provided with an adjusting bolt, and the adjusting cover plate is correspondingly provided with an adjusting hole for exposing the adjusting bolt.
10. The outdoor broadband combiner of claim 1, wherein the cavity, the waterproof cover plate, the common port interface, the first band interface, the second band interface, the coaxial resonator, and the common cavity are all made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328035.6U CN215771492U (en) | 2021-09-24 | 2021-09-24 | Outdoor broadband combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328035.6U CN215771492U (en) | 2021-09-24 | 2021-09-24 | Outdoor broadband combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215771492U true CN215771492U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122328035.6U Active CN215771492U (en) | 2021-09-24 | 2021-09-24 | Outdoor broadband combiner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215771492U (en) |
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2021
- 2021-09-24 CN CN202122328035.6U patent/CN215771492U/en active Active
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