CN215266619U

CN215266619U - Universal three-frequency combiner for multiple operators

Info

Publication number: CN215266619U
Application number: CN202120824922.XU
Authority: CN
Inventors: 陈文�; 罗金榜
Original assignee: Hilinks Technology Co ltd
Current assignee: Hilinks Technology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-21
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a general three frequency combiners of many operators, the signal filtering chamber that is used for signal transmission is offered to the inside of combiner main part, signal filtering intracavity and combiner main part an organic whole are connected with the coupling window of separating signal filtering chamber, the coupling window separates signal filtering chamber for first filtering chamber, second filtering chamber and third filtering chamber, the one end of combiner main part is equipped with first signal transmission port, second signal transmission port and third signal transmission port, the other end of combiner main part is equipped with the common signal transmission port, first filtering chamber and second filtering intracavity are equipped with a plurality of resonance posts that are used for signal transmission, the third filtering intracavity is equipped with the inductor of a plurality of coupling connections, a signal transmission for different frequency channels. The utility model discloses make the general three frequency combiners of many operators realize that many networks fuse, and reduce the combiner volume, reduce intermodulation interference, improved and produced the nature price ratio, improved market competition.

Description

Universal three-frequency combiner for multiple operators

Technical Field

The utility model belongs to the technical field of the combiner, especially, relate to a general three frequency combiners of many operators.

Background

The cavity filter and the cavity combiner are widely used in the field of modern communication, useful signals can pass through a signal link to the maximum extent, useless signals are inhibited to the maximum extent, meanwhile, the combiner can also be used for separating and combining signals of different frequency bands, with the rapid advance of the 5G technology, in order to obtain larger channel capacity and higher transmission rate, a mobile communication system is developing towards higher frequency, in order to realize coexistence with the existing system, the combiner is required to meet the requirement of wider bandwidth, and therefore, in the process of evolution of the mobile communication system, the combiner with high performance is naturally needed.

In the engineering application of the three-frequency combiner, C network with frequency bands of 703MHZ-791MHZ,800MHZ, GSM network with frequency bands of 900MHZ or other different frequencies are required to be output simultaneously, and a set of indoor distribution system can simultaneously work in CDMA frequency bands, GSM frequency bands or other frequency bands by adopting the combiner, for example, in a radio antenna system, input and output signals of several different frequency bands (such as 145MHZ and 435MHZ) are combined by the combiner and then connected with a radio station by using a feeder, so that not only a feeder is saved, but also the trouble of switching different antennas is avoided, and the indoor or outdoor coverage distribution system of the mobile network is required to fuse signals of multiple frequency bands such as 2G, 3G, 4G, Internux2300/2400, and the like, so that higher requirements are provided for the design of the combiner.

In the prior art, the three-frequency combiner is applied to an indoor or outdoor distribution system, multi-network integration cannot be realized, the size of the combiner is large, intermodulation interference is high, and the situation needs to be changed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a general three frequency combiners of many operators to solve the problem mentioned in the above-mentioned background art.

For realizing the purpose of the above utility model, the technical scheme adopted is as follows:

a three-frequency combiner universal for multiple operators comprises a combiner main body for bearing each part of the combiner, a signal filtering cavity for signal transmission is arranged in the combiner main body, a coupling window for separating the signal filtering cavity is integrally connected with the combiner main body in the signal filtering cavity, the signal filtering cavity is separated into a first filtering cavity, a second filtering cavity and a third filtering cavity by the coupling window, one end of the combiner main body is provided with a first signal transmission port, a second signal transmission port and a third signal transmission port, the other end of the combiner main body is provided with a common signal transmission port, a cover plate for sealing is detachably connected on the combiner main body and above the signal filtering cavity through screws, a plurality of resonance columns for signal transmission are arranged in the first filtering cavity and the second filtering cavity, and a plurality of coupled inductors are arranged in the third filtering cavity and are used for signal transmission of different frequency bands.

The utility model discloses further set up to: still be equipped with the public axle in the signal filtering chamber, the public axle with first filtering chamber with inductor electric connection in the second filtering chamber the resonance post reaches the third filtering chamber is used for public signal transmission port passes through the public axle will first filtering chamber, second filtering chamber with third filtering chamber signal connection.

The utility model discloses further set up to: the inductor is designed for a chip line inductor structure.

The utility model discloses further set up to: the signal input/output frequency band of the first signal transmission port is 700MHz, the signal input/output frequency band of the second signal transmission port is 791MHz-960MHz, and the signal input/output frequency band of the third signal transmission port is 1427MHz-3800 MHz.

The utility model discloses further set up to: the first filtering cavity, the second filtering cavity and the third filtering cavity are all designed by adopting a band-pass filtering structure.

The utility model discloses further set up to: and 8 resonance columns are fixedly connected in the first filter cavity.

The utility model discloses further set up to: and 11 resonance columns are fixedly connected in the second filter cavity.

The utility model discloses further set up to: the first filtering cavity, the second filtering cavity and the resonant column form an integral resonant cavity.

The utility model discloses further set up to: the resonant columns in the first filtering cavity and the second filtering cavity extend along the contour of the coupling window in sequence, and the adjacent resonant columns are arranged at equal intervals.

The utility model discloses further set up to: the first filtering cavity, the second filtering cavity and the third filtering cavity respectively correspond to the first filtering cavity, the second filtering cavity and the third filtering cavity.

In conclusion, compared with the prior art, the utility model discloses a general three frequency combiners of many operators, the signal filtering chamber that is used for signal transmission is offered to the inside of combiner main part, signal filtering intracavity and combiner main part an organic whole are connected with the coupling window who separates signal filtering chamber, the coupling window separates signal filtering chamber for first filtering chamber, second filtering chamber and third filtering chamber, the one end of combiner main part is equipped with first signal transmission port, second signal transmission port and third signal transmission port, the other end of combiner main part is equipped with public signal transmission port, first filtering chamber and second filtering intracavity are equipped with a plurality of resonance columns that are used for signal transmission, third filtering intracavity is equipped with a plurality of coupling connection's inductor, a signal transmission for different frequency channels. Through this setting promptly for the general three frequency combiners of many operators realize many networks and merge, and reduce the combiner volume, reduce intermodulation interference, improved and produced the sexual valence ratio, improved market competition.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described 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 schematic perspective view of a three-frequency combiner for multiple operators in a universal manner according to this embodiment;

fig. 2 is a schematic diagram of a front view structure of a universal three-frequency combiner for multiple operators according to this embodiment;

fig. 3 is a schematic diagram of an internal structure of a universal triple-frequency combiner for multiple operators according to this embodiment.

Reference numerals: 1. a combiner main body; 11. a first signal transmission port; 12. a second signal transmission port; 13. a third signal transmission port; 14. a common signal transmission port; 2. a signal filtering cavity; 21. a first filter cavity; 22. a second filter cavity; 23. a third filter cavity; 3. a coupling window; 4. a cover plate; 5. a resonant column; 6. an inductor; 7. a common shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

A three-frequency combiner commonly used by multiple operators is disclosed, as shown in figures 1-3, comprising a combiner main body 1 for bearing each part of the combiner, a signal filtering cavity 2 for signal transmission is arranged in the combiner main body 1, a coupling window 3 for separating the signal filtering cavity 2 is connected with the combiner main body 1 in the signal filtering cavity 2, the coupling window 3 divides the signal filtering cavity 2 into a first filtering cavity 21, a second filtering cavity 22 and a third filtering cavity 23, one end of the combiner main body 1 is provided with a first signal transmission port 11, a second signal transmission port 12 and a third signal transmission port 13, the other end of the combiner main body 1 is provided with a common signal transmission port 14, a cover plate 4 for sealing is detachably connected on the combiner main body 1 and above the signal filtering cavity 2 through screws, a plurality of resonance columns 5 for signal transmission are arranged in the first filtering cavity 21 and the second filtering cavity 22, a plurality of coupled inductors 6 are arranged in the third filter cavity 23, and are used for signal transmission of different frequency bands.

In the specific implementation process, still be equipped with public axle 7 in the signal filtering cavity 2, the inductor 6 electric connection in public axle 7 and the resonant column 5 in first filtering cavity 21 and the second filtering cavity 22 and the third filtering cavity 23 for public signal transmission port 14 filters cavity 21, second filtering cavity 22 and the third filtering cavity 23 signal connection through public axle 7, thereby realize the signal output of different frequency channels, realize the multinet and merge, and reduce the combiner volume through the signal filtering cavity 2 of coupling window 3 partition, and reduce the intermodulation interference of signal between each filtering cavity, improved the product nature price ratio, improved market competition.

Further, the inductor 6 is designed as a chip line inductor structure, and it can be understood that specific functions of the chip line inductor in this embodiment can be obtained by those skilled in the art according to the prior art, and details of the structure and the operation principle of the chip line inductor are not described herein again.

The signal input/output frequency band of the first signal transmission port 11 is 700MHz, the signal input/output frequency band of the second signal transmission port 12 is 791MHz-960MHz, and the signal input/output frequency band of the third signal transmission port 13 is 1427MHz-3800MHz, so as to improve the practicability.

It should be noted that the first filter cavity 21, the second filter cavity 22, and the third filter cavity 23 are all designed by using a bandpass filter structure.

In this embodiment, 8 resonant columns 5 are fixedly connected in the first filter cavity 21 for signal transmission in the 700MHz frequency band.

In the present embodiment, 11 resonant columns 5 are fixedly connected in the second filter cavity 22 for signal transmission in the frequency band of 791MHz-960 MHz.

In the specific implementation process, the first filtering cavity 21, the second filtering cavity 22 and the resonant column 5 form an integral resonant cavity, so that the size of the combiner is reduced, intermodulation interference of signals among the filtering cavities is reduced, the cost performance of products is improved, and the market competitiveness is improved.

Further, the resonant columns 5 in the first filter cavity 21 and the second filter cavity 22 sequentially extend along the profile of the coupling window 3, and the adjacent resonant columns 5 are arranged at equal intervals to ensure signal transmission.

Wherein, the first filter cavity 21, the second filter cavity 22 and the third filter cavity 23 correspond to the first filter cavity 21, the second filter cavity 22 and the third filter cavity 23, respectively.

In this embodiment, the frequency band of combiner divides the design clearly, and operating frequency all accords with in the present domestic operator working range, and multifrequency, thereby realized indoor or outdoor cover the integration that distributes many system sharing signal distribution network deployment system, secondly, 1427MHz-3800 MHz's third signal transmission port 13 has adopted the slice line inductor to couple, other ports adopt integrative resonant cavity, not only effectual the volume that has reduced signal filtering cavity 2, reduced the volume of whole combiner moreover, thereby reduction in production cost.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses a general three frequency combiners of many operators. The signal filtering cavity 2 is internally and integrally connected with a coupling window 3 for separating the signal filtering cavity 2 with the combiner main body 1, the coupling window 3 separates the signal filtering cavity 2 into a first filtering cavity 21, a second filtering cavity 22 and a third filtering cavity 23, one end of the combiner main body 1 is provided with a first signal transmission port 11, a second signal transmission port 12 and a third signal transmission port 13, the other end of the combiner main body 1 is provided with a common signal transmission port 14, a cover plate 4 for sealing is detachably connected with the combiner main body 1 above the signal filtering cavity 2 through a screw, a plurality of resonance columns 5 for signal transmission are arranged in the first filtering cavity 21 and the second filtering cavity 22, and a plurality of coupled inductors 6 are arranged in the third filtering cavity 23 and are used for signal transmission of different frequency bands. Through this setting promptly for the general three frequency combiners of many operators realize many networks and merge, and reduce the combiner volume, reduce intermodulation interference, improved and produced the sexual valence ratio, improved market competition.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a general three frequency combiners of many operators which characterized in that: the combiner comprises a combiner main body for bearing each part of the combiner, a signal filtering cavity for signal transmission is arranged in the combiner main body, a coupling window for separating the signal filtering cavity is integrally connected with the combiner main body in the signal filtering cavity, the signal filtering cavity is separated into a first filtering cavity, a second filtering cavity and a third filtering cavity by the coupling window, a first signal transmission port, a second signal transmission port and a third signal transmission port are arranged at one end of the combiner main body, a common signal transmission port is arranged at the other end of the combiner main body, a cover plate for sealing is detachably connected on the combiner main body and above the signal filtering cavity through screws, a plurality of resonance columns for signal transmission are arranged in the first filtering cavity and the second filtering cavity, and a plurality of inductors in coupling connection are arranged in the third filtering cavity, for signal transmission in different frequency bands.

2. The multi-operator universal three-frequency combiner according to claim 1, wherein a common shaft is further disposed in the signal filtering cavity, the common shaft is electrically connected to the resonant columns in the first filtering cavity and the second filtering cavity and the inductors in the third filtering cavity, and the common signal transmission port is used for signal-connecting the first filtering cavity, the second filtering cavity and the third filtering cavity through the common shaft.

3. The multi-operator universal three-frequency combiner of claim 1, wherein the inductor is a chip line inductor structure design.

4. The multi-operator universal three-frequency combiner of claim 1, wherein the signal input/output frequency band of the first signal transmission port is 700MHz, the signal input/output frequency band of the second signal transmission port is 791MHz-960MHz, and the signal input/output frequency band of the third signal transmission port is 1427MHz-3800 MHz.

5. The multi-operator universal three-frequency combiner of claim 1, wherein the first filter cavity, the second filter cavity and the third filter cavity are all designed with band-pass filtering structures.

6. The universal three-frequency combiner of claim 1, wherein 8 resonant columns are fixedly connected in the first filter cavity.

7. The universal three-frequency combiner of claim 1, wherein 11 resonant columns are fixedly connected in the second filter cavity.

8. The multi-operator universal three-frequency combiner of claim 1, wherein the first filtering cavity, the second filtering cavity and the resonant column form an integral resonant cavity.

9. The multi-operator universal three-frequency combiner according to claim 1, wherein the resonant columns in the first filter cavity and the second filter cavity extend along the contour of the coupling window in sequence, and adjacent resonant columns are arranged with equal gaps therebetween.

10. The multi-operator universal three-frequency combiner of claim 1, wherein the first filter cavity, the second filter cavity and the third filter cavity correspond to the first filter cavity, the second filter cavity and the third filter cavity, respectively.