CN210200932U

CN210200932U - Combiner

Info

Publication number: CN210200932U
Application number: CN201921292406.6U
Authority: CN
Inventors: An Chen; 陈安; Bihui Meng; 孟弼慧; Siyong Tuo; 陀思勇; Ning Wang; 王宁; Jiayuan Chen; 陈嘉元
Original assignee: Comba Telecom Technology Guangzhou Ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-03-27
Anticipated expiration: 2029-08-08

Abstract

The utility model provides a combiner, its including the cavity that has the cavity and the public joint of locating cavity one end, be equipped with in the cavity and extend and will along its lengthwise direction the cavity separates the baffle of two-layer cavity about forming, one side that the cavity is close to the public joint is equipped with the resonance body and first resonance post, just the both ends of resonance body are arranged in upper and lower two-layer cavity respectively, public joint department is equipped with the coupling stick, be equipped with the coupling hole on the resonance body, the coupling stick inserts in the coupling hole so that the resonance body receives first frequency channel, first resonance post and coupling stick coupling connection are in order to receive the second frequency channel. The coupling rod is arranged at the common joint of the combiner and is electrically connected with the resonator and the first resonance column respectively, so that the multi-band signal splitting/combining integrated with the 5G frequency band can be realized, and compared with the port structure of the traditional combiner, the combiner is simple in structure and can meet the development of the 5G communication technology.

Description

Combiner

Technical Field

The utility model relates to a communication radio frequency technology field especially relates to a combiner.

Background

The cavity combiner is widely used in the field of modern communication, and has the basic functions of enabling useful signals to pass through a signal link to the maximum extent, suppressing useless signals to the maximum extent, and simultaneously splitting/combining signals of different frequency bands. Most of the frequency bands of the conventional combiner are included in frequency band 1(617MHz-960MHz) and frequency band 2(1400MHz-2700MHz), and the bandwidth of the common port needs to include frequency band 1 and frequency band 2.

With the development of communication technology, especially 5G communication technology, a combiner needs to add a 5G frequency band, i.e., frequency band 3(3300MHz-3800MHz), which requires that the port bandwidth of the common port of the combiner must include frequency band 1, frequency band 2, and frequency band 3, so as to realize splitting/combining signals in the three frequency bands; however, since the frequency of the 5G band-band 3(3300MHz-3800MHz) is high and the wavelength is short, a combiner that can integrate three bands and realize the splitting/combining of signals in the three bands is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective aims at providing a combiner that has the multifrequency section signal that realizes the integration to have the 5G frequency channel and divide/close the way effect.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model relates to a combiner, including the cavity that has the cavity and the public joint of locating cavity one end, be equipped with in the cavity and extend and will along its lengthwise direction the cavity separates the baffle of two-layer cavity about forming, one side that the cavity is close to the public joint is equipped with resonance body and first resonance post, just two-layer cavity about the both ends of resonance body are located respectively, public joint department is equipped with the coupling stick, be equipped with the coupling hole on the resonance body, the coupling stick inserts in the coupling hole so that the resonance body receives first frequency channel, first resonance post is connected in order to receive the second frequency channel with the coupling of coupling stick.

Further setting: and a second resonance column is also arranged in the cavity and is connected with the coupling rod through a lead so as to receive a third frequency band.

Further setting: the first frequency band comprises 1400MHz-2700MHz, the second frequency band comprises 3300MHz-3800MHz, and the third frequency band comprises 617MHz-960 MHz.

Further setting: the coupling area or distance between the first resonance column and the coupling rod is associated with the bandwidth of the second frequency band received by the first resonance column.

Further setting: the resonance body is including locating the third resonance post in the upper cavity and locating the fourth resonance post in the lower floor's cavity, the baffle be close to the one end of common junction be equipped with the via hole of coupling hole intercommunication, the coupling stick warp the via hole inserts in the coupling hole in order to distribute the bandwidth of third resonance post and fourth resonance post receiving frequency channel.

Further setting: and the coupling rod is sleeved with an insulating medium piece which is abutted against the outer wall of the resonator.

Further setting: the coupling hole is positioned in the middle of the resonator, and the third resonance column and the fourth resonance column are symmetrically arranged on two sides of the coupling hole;

or the coupling hole is formed in one side, close to the third resonant column, of the resonant body;

or the coupling hole is formed in one side, close to the fourth resonant column, of the resonant body.

Further setting: the coupling rod provided at the common joint may be moved with the partition as a reference surface corresponding to the position of the coupling hole.

Further setting: and a window for the coupling rod to pass through is further arranged on one side of the cavity close to the common joint, and the size change of the window can be used for changing the size of energy coupled from the coupling rod by the third resonant column and the fourth resonant column.

Further setting: the combiner further comprises a cover plate which is covered with the cavity, and tuning screws are arranged on the cover plate and respectively correspond to the resonant body, the first resonant column and the second resonant column.

Compared with the prior art, the utility model discloses a scheme has following advantage:

1. the utility model discloses an among the combiner, through setting up the coupling stick in common joint department to simultaneously with the distribution of resonance body, first resonance post and second resonance post coupling connection in order to realize a plurality of frequency channels, thereby can realize that the integration has the branch/close way of the multifrequency section signal of 5G frequency channels, compare in the port structure of traditional combiner, simple structure can satisfy in communication technology's development needs.

2. In the combiner of the utility model, for the first frequency band with wider frequency band, the bandwidth allocation of the first frequency band received by the third resonance column and the fourth resonance column is adjusted by changing the relative position of the coupling hole on the resonance body; the size of the window is changed or the depth of the coupling rod extending into the coupling hole is changed, so that the energy obtained by the third resonance column and the fourth resonance column through coupling of the coupling rod is adjusted; meanwhile, the adjustment of the bandwidth of the second frequency band port can be realized by adjusting the coupling area or distance between the first resonance column and the coupling rod, the structure is simple, the operation is convenient, and the method provides a high-quality choice for the deployment of a high-performance mobile communication base station and a 5G large-scale antenna.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the combiner of the present invention;

fig. 2 is a partial structure split view of an embodiment of the combiner of the present invention;

fig. 3 is a schematic structural diagram of the combiner of the present invention used for illustrating a plurality of signal single joints.

In the figure, 11, chamber; 12. a cover plate; 13. a partition plate; 131. a via hole; 14. a common connection; 15. a signal single joint; 16. a window; 2. a first resonant column; 3. a second resonant column; 4. a resonator body; 41. a third resonant column; 42. a fourth resonant column; 43. a coupling hole; 5. a coupling rod; 51. an insulating dielectric member; 6. a tuning screw; 100. a combiner.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 to 3, the present invention relates to a combiner 100, which can implement a splitting/combining path of a plurality of frequency bands including 617MHz-960MHz, 1400MHz-2700MHz, 3300MHz-3800MHz or sub-bands included in the frequency bands, wherein 3300MHz-3800MHz is a 5G frequency band, and is suitable for the development of 5G communication technology.

The combiner 100 includes a cavity 11 and a cover plate 12 covering the cavity 11, and the cavity 11 and the cover plate 12 are fixed by screws, so that the cavity 11 and the cover plate 12 define a closed cavity (not shown in the figure, the same applies below) for signal transmission in the cavity 11. And a partition plate 13 for partitioning the cavity into an upper layer cavity and a lower layer cavity is also arranged in the cavity 11, and the volume of the combiner can be reduced by the structure of the upper layer cavity and the lower layer cavity under the condition that the number of paths of the combiner is large. One end of the cavity 11 is provided with a common joint 14, and one end of the cavity 11 opposite to the common joint 14 is provided with a plurality of signal single joints 15.

A common port structure (not shown in the figure, the same below) which is butted with the common joint 14 is arranged at one end, close to the common joint 14, of the cavity 11, the common port structure comprises a coupling rod 5, a first resonance column 2 and a resonance body 4, two ends of the resonance body 4 are respectively located in an upper cavity and a lower cavity, the coupling rod 5 is electrically connected with an inner conductor of the common joint 14, and the coupling rod 5 is respectively coupled with the first resonance column 2 and the resonance body 4 to realize the distribution of two frequency bands.

The resonator 4 is coupled with the coupling rod 5 to receive a first frequency band, where the first frequency band is a frequency band in a range of 1400MHz to 2700MHz or a sub-frequency band included in the frequency band range.

The first resonant column 2 is coupled with the coupling rod 5 to receive a second frequency band, wherein the second frequency band is a frequency band ranging from 3300MHz to 3800MHz or a sub-frequency band included in the frequency band range.

Further, the common port structure further comprises a second resonant column 3 electrically connected with the coupling rod 5 through a wire, so as to receive a third frequency band, wherein the third frequency band is a frequency band ranging from 617MHz to 960MHz or a sub-frequency band included in the frequency band range.

In addition, still can be in newly-increased in the cavity 11 with coupling stick electric connection's resonance post, through the frequency channel signal is received to the resonance post, so that the utility model discloses a combiner 100 realizes the branch/way of more frequency channels to the frequency channel that newly-increased resonance post received is for containing the sub-frequency channel in the three frequency channels of 617MHz-960MHz, 1400MHz-2700MHz, 3300MHz-3800MHz in above-mentioned scope.

Referring to fig. 1 and 2, the resonator 4 is coupled to the coupling rod 5 so that the resonator 4 is configured to receive a first frequency band, the resonator 4 is disposed on the partition 13, and one end of the resonator 4 is located in the upper cavity, and the other end of the resonator is located in the lower cavity, one end of the resonator 4 located in the upper cavity forms a third resonant column 41, and one end of the resonator 4 located in the lower cavity forms a fourth resonant column 42, the resonator 4 is provided with a coupling hole 43 into which the coupling rod 5 is inserted, so that the resonator 4 and the coupling rod 5 are coupled to receive a second frequency band, and bandwidth allocation between the third resonant column 41 and the fourth resonant column 42 can be achieved by inserting the coupling rod 5 into the coupling hole 43.

The coupling rod 5 can be directly assembled with the common joint 14 for fixation without welding with the resonance column, so that the assembly difficulty is reduced, and meanwhile, due to the fact that no welding point is arranged on the resonance column, the nonlinear factor of the cavity 11 can be reduced.

In addition, because the resonator 4 is located on the partition 13, a via hole 131 communicating with the coupling hole 43 is further opened at one end of the partition 13 close to the common joint 14, the coupling rod 5 is inserted into the coupling hole 43 through the via hole 131, and gaps exist between the coupling rod 5 and the via hole 131 and between the coupling rod 5 and the coupling hole 43.

Further, when the coupling hole 43 is located in the middle of the resonator body 4, the third resonant column 41 and the fourth resonant column 42 are symmetrically disposed on both sides of the coupling hole 43, so that the coupling rod 5 is inserted into the coupling hole 43, and the bandwidths allocated to the third resonant column 41 and the fourth resonant column 42 from the coupling rod 5 are equal or substantially equal.

The coupling hole 43 may also be disposed on a side of the resonator body 4 close to the third resonant column 41, where the bandwidth allocated to the third resonant column 41 is greater than the bandwidth allocated to the fourth resonant column 42.

The coupling hole 43 may also be disposed on a side of the resonator body 4 close to the fourth resonant post 42, where the bandwidth allocated to the fourth resonant post 42 is greater than the bandwidth allocated to the third resonant post 41.

By changing the relative distance from the coupling hole 43 to the third resonant column 41 and the fourth resonant column 42, the bandwidth of the two resonant columns can be allocated, so that the normal transmission of signals in a limited bandwidth can be ensured, and the phenomenon of network blockage caused by too large transmission signal amount can be avoided.

In addition, the position of the coupling rod 5 can be moved corresponding to the position of the coupling hole 43 by using the partition plate 13 as a reference surface, so as to ensure that the coupling rod 5 can be accurately inserted into the coupling hole 43.

Further, the coupling rod 5 is further sleeved with an insulating medium member 51 abutting against the outer wall of the resonator 4, so as to ensure signal coupling between the coupling rod 5 and the resonator 4. Preferably, the insulating dielectric member 51 is made of teflon, which has a good dielectric constant, so that the coupling rod 5 and the resonator 4 are insulated from each other.

Further, the combiner common port structure further comprises a window 16 which is arranged in the cavity 11 and close to the common joint, the coupling rod 5 penetrates through the window 16, and the size of the window is consistent with that of the third resonance column and the fourth resonance column, so that the size of energy coupled from the coupling rod by the third resonance column and the fourth resonance column can be adjusted by adjusting the size of the window 16, and the bandwidth distribution of the third resonance column and the fourth resonance column can be realized according to the mutual coupling size between the third resonance column and the fourth resonance column.

In addition, the amount of energy coupled from the coupling rod 5 by the third resonant column 41 and the fourth resonant column 42 can also be achieved by changing the depth of the coupling rod 5 inserted into the coupling hole 43. Preferably, the coupling hole 43 in this embodiment may be a through hole, so that the depth adjustment range of the coupling rod 5 inserted into the coupling hole 43 is wider, and since electromagnetic field energy is generally concentrated between the coupling rod 5 and the coupling hole 43, the bandwidth adjustment range of the third resonant column 41 and the fourth resonant column 42 is wider by adjusting the depth of the coupling hole 43. In addition, the coupling hole 43 can be a blind hole or other forms according to actual needs.

The first resonant column 2 is coupled with the coupling rod 5 to realize the distribution of a second frequency band, the second frequency band is a 5G frequency band, the frequency is high, the wavelength is short, and higher wireless speed can be supported. In addition, by adjusting the coupling area between the first resonant column 2 and the coupling rod 5 or the distance between the two, so as to achieve the purpose of adjusting the port bandwidth of the second frequency band (i.e. 5G frequency band) received by the first resonant column 2, and the coupling area or distance between the first resonant column 2 and the coupling rod 5 is related to the bandwidth of the second frequency band received by the first resonant column 2, the coupling areas and distances of the first resonant column 2 and the coupling rod 5 respectively have optimal values, wherein, when the coupling area of the first resonant column 2 and the coupling rod 5 is gradually increased to an optimal value, the first resonant column 2 is gradually increased from the bandwidth of the second frequency band allocated by the coupling rod 5, but when the coupling area of the first resonant column 2 and the coupling rod 5 exceeds the optimal value, the bandwidth of the second frequency band is kept unchanged or gradually reduced; similarly, when the distance between the first resonant column 2 and the coupling rod 5 is an optimal value, the bandwidth of the second frequency band can reach a peak value, so that the coupling area or the distance between the first resonant column 2 and the coupling rod 5 can be adjusted according to the size of the required bandwidth of the second frequency band.

In this embodiment, the utility model discloses a combiner 100 can form four at least resonant cavities (not shown in the figure, the same from beginning to end) corresponding to first resonance post 2, second resonance post 3, third resonance post 41 and fourth resonance post 42, and every resonant cavity comprises the resonance post and cavity 11 and apron 12 that correspond, and signal single-end connector 15 one-to-one sets up four pairs to satisfy the synchronous branch/way operation of a plurality of frequency channels.

Furthermore, a tuning screw 6 is further arranged on the cover plate 12 and corresponds to the first resonant column 2, the second resonant column 3 and the resonant body 4, the tuning screw 6 is in threaded connection with the cover plate 12, and the length of the tuning screw 6 extending into the cavity 11 is adjusted to adjust the coupling amount of the corresponding resonant column.

In addition, because the cavity 11 is a double-layer cavity structure, the bottom wall of the cavity 11 parallel to the cover plate 12 can also be provided with a tuning screw 6 corresponding to the resonant column.

Compared with the traditional combiner, the combiner 100 of the utility model can realize the branch/combination of a plurality of frequency bands integrated with 5G frequency bands, and meets the development requirement of communication technology; the double-layer cavity is adopted, so that the volume of the combiner can be reduced when the number of the channels is large, and the miniaturization is realized; meanwhile, in a first frequency band with a wider frequency band, the bandwidth allocation of the first frequency band received by the third resonant column 41 and the fourth resonant column 42 is adjusted by changing the relative position of the coupling hole 43 on the resonant body 4; the adjustment of the energy obtained by the third resonant column 41 and the fourth resonant column 42 from the coupling of the coupling rod 5 is achieved by changing the size of the window 16 or the depth of the coupling rod 5 extending into the coupling hole 43; the purpose of adjusting the bandwidth of a port of a second frequency band (namely, a 5G frequency band) received by the first resonance column 2 is achieved by adjusting the coupling area between the first resonance column 2 and the coupling rod 5 or the distance between the first resonance column and the coupling rod; the utility model discloses combiner 100's simple structure, it is the high-quality selection that the deployment of high performance mobile communication basic station and the extensive antenna of 5G provided.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a combiner, is including the cavity that has the cavity and locate the common junction of cavity one end, be equipped with in the cavity and extend along its lengthwise direction and with the baffle of two-layer cavity about the cavity partition formation, characterized by: one side that the cavity is close to the public joint is equipped with resonance body and first resonance post, just the both ends of resonance body are located two-layer cavity about being equipped with respectively, public joint department is equipped with the coupling stick, be equipped with the coupling hole on the resonance body, the coupling stick inserts in the coupling hole so that the resonance body receives first frequency channel, first resonance post and coupling stick coupling are connected in order to receive the second frequency channel.

2. The combiner of claim 1, wherein: and a second resonance column is also arranged in the cavity and is connected with the coupling rod through a lead so as to receive a third frequency band.

3. The combiner of claim 2, wherein: the first frequency band comprises 1400MHz-2700MHz, the second frequency band comprises 3300MHz-3800MHz, and the third frequency band comprises 617MHz-960 MHz.

4. The combiner of claim 1, wherein: the coupling area or distance between the first resonance column and the coupling rod is associated with the bandwidth of the second frequency band received by the first resonance column.

5. The combiner of claim 1, wherein: the resonance body is including locating the third resonance post in the upper cavity and locating the fourth resonance post in the lower floor's cavity, the baffle be close to the one end of common junction be equipped with the via hole of coupling hole intercommunication, the coupling stick warp the via hole inserts in the coupling hole in order to distribute the bandwidth of third resonance post and fourth resonance post receiving frequency channel.

6. The combiner of claim 5, wherein: and the coupling rod is sleeved with an insulating medium piece which is abutted against the outer wall of the resonator.

7. The combiner of claim 5, wherein: the coupling hole is positioned in the middle of the resonator, and the third resonance column and the fourth resonance column are symmetrically arranged on two sides of the coupling hole;

8. The combiner of claim 7, wherein: the coupling rod provided at the common joint may be moved with the partition as a reference surface corresponding to the position of the coupling hole.

9. The combiner of claim 5, wherein: and a window for the coupling rod to pass through is further arranged on one side of the cavity close to the common joint, and the size change of the window can be used for changing the size of energy coupled from the coupling rod by the third resonant column and the fourth resonant column.

10. The combiner of claim 2, wherein: the resonant cavity is characterized by further comprising a cover plate which is covered with the cavity, and tuning screws are arranged on the cover plate and correspond to the resonant body, the first resonant column and the second resonant column respectively.