CN210403996U - Four-port combiner applied to 5G room split scene - Google Patents
Four-port combiner applied to 5G room split scene Download PDFInfo
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- CN210403996U CN210403996U CN201921819114.3U CN201921819114U CN210403996U CN 210403996 U CN210403996 U CN 210403996U CN 201921819114 U CN201921819114 U CN 201921819114U CN 210403996 U CN210403996 U CN 210403996U
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Abstract
The utility model provides a four port combiners that are applied to 5G room branch scene, includes a cavity, is provided with first radio frequency signal circuit, second radio frequency signal circuit, third radio frequency signal circuit, fourth radio frequency signal circuit in the cavity, and the cavity outside is provided with GSM port, DCS port, WCDMA port, 5G port and antenna feeder port, the utility model discloses well band-pass filter concatenates low pass filter, has effectively restrained higher harmonic, has effectively reduced signal interference; the multiple channels share the resonant cavity, so that the reflected intermodulation of the port of the combiner is effectively reduced, the additional inter-frequency interference is avoided, and the performance of the combiner is improved; the coupling coefficient can be adjusted by adjusting the coupling tuning rod, the bandwidth of a channel is controlled, the debugging difficulty is reduced, the inductive capacitive coupling rod is arranged between the second resonant cavity and the third resonant cavity of the third radio frequency signal circuit, zero point inhibition is increased by cavity jumping coupling, the size of the combiner is further reduced, and out-of-band inhibition and isolation between ports are improved.
Description
Technical Field
The utility model relates to the field of communication, especially, relate to microwave device, be applied to four port combiners of 5G room branch scene particularly.
Background
With the continuous development of communication technology, especially the updating and evolution of 5G technology, the existing communication network needs to be updated and updated, wherein the requirements of fast coverage, smooth evolution and the like are particularly outstanding, in the prior art, the number of combiners for processing 5G signals is small, the signal interference is large, and the difficulty of production and debugging is large.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be applied to four port combiners that 5G room divides scene, this kind of be applied to four port combiners that 5G room divides scene solve the combiner signal interference who is used for handling the 5G signal among the prior art great, the production great technical problem of the debugging degree of difficulty.
The utility model provides a pair of be applied to four port combiners of 5G room branch scene, including a cavity, be provided with first radio frequency signal circuit, second radio frequency signal circuit, third radio frequency signal circuit, fourth radio frequency signal circuit in the cavity, the cavity outside is provided with GSM port, DCS port, WCDMA port, 5G port and antenna and presents the port, and wherein GSM port, DCS port, WCDMA port, 5G port are connected with the input of first radio frequency signal circuit, the input of second radio frequency signal circuit, the input of third radio frequency signal circuit, the input of fourth radio frequency signal circuit respectively, and antenna presents the port and is connected with the output of first radio frequency signal circuit, the output of second radio frequency signal circuit, the output of third radio frequency signal circuit, the output of fourth radio frequency signal circuit jointly.
Furthermore, the first radio frequency signal line is formed by connecting a four-cavity band-pass filter and a low-pass filter in series, and the frequency band of the four-cavity band-pass filter is 806-960 MHz.
Furthermore, the low-pass filter is of a 9-order filtering structure formed by connecting high-low impedance lines in series, a guide rod is arranged in the cavity, one end of the low-pass filter is connected with the guide rod, and the other end of the low-pass filter is connected with the first resonant cavity.
Further, a dielectric protective sleeve is arranged on the outer layer of the four-cavity band-pass filter.
Further, the second radio frequency signal line is composed of a five-cavity band-pass filter, and the frequency band of the five-cavity band-pass filter is 1710-.
Further, the third rf signal line is composed of an eight-cavity bandpass filter, and the frequency band of the eight-cavity bandpass filter is 1920-.
Furthermore, an inductive capacitive coupling rod is arranged between the second resonant cavity and the third resonant cavity of the third radio frequency signal circuit.
Further, the fourth rf signal line is composed of a seven-cavity bandpass filter, and the frequency band of the seven-cavity bandpass filter is 3300-.
Furthermore, the second radio frequency signal line, the third radio frequency signal line and the fourth radio frequency signal line adopt a common resonant cavity, a first coupling tuning rod is arranged between the common resonant cavity and the fourth resonant cavity of the second radio frequency signal path, a second coupling tuning rod is arranged between the common resonant cavity and the fifth resonant cavity of the third radio frequency signal path, and a third coupling tuning rod is arranged between the common resonant cavity and the sixth resonant cavity of the fourth radio frequency signal path.
Furthermore, a resonant column is arranged in the common resonant cavity, a guide rod is arranged in the cavity, the resonant column is connected with the guide rod in a space coupling mode, the guide rod is connected with inner cores of the antenna feeder port, the GSM port, the DCS port, the WCDMA port and the 5G port, and chamfers are arranged in the cavity where the second radio-frequency signal circuit and the fourth radio-frequency signal circuit are located.
Compared with the prior art, the utility model, its effect is positive and obvious. The middle band-pass filter of the utility model is connected with the low-pass filter in series, thereby effectively inhibiting higher harmonics and effectively reducing signal interference; the multiple channels share the resonant cavity, so that the reflected intermodulation of the port of the combiner is effectively reduced, the additional inter-frequency interference is avoided, and the performance of the combiner is improved; through adjusting the adjustable coupling coefficient of coupling tuning lever, the control access bandwidth has reduced the debugging degree of difficulty, is provided with perceptual capacitive coupling lever between the second resonant cavity of third radio frequency signal circuit and the third resonant cavity, increases suppression at zero point through jumping the cavity coupling, further reduces the combiner volume, improves outband suppression and port isolation, is provided with the chamfer in the cavity, the production and processing of both being convenient for, the reflection intermodulation that has effectively reduced the combiner again for the combiner reduces to the minimum to the interference of system, the utility model provides a combiner can introduce current communication network with the 5G signal, can realize the transformation of network node fast to reduce the interference of signal, improve the competitiveness of operator under the 5G environment, promote user experience.
Drawings
Fig. 1 is a schematic structural diagram of the four-port combiner applied to a 5G room split scene of the present invention.
Detailed Description
Example 1:
as shown in fig. 1, the utility model provides a pair of be applied to four port combiners of 5G room branch scene, including a cavity 1, be provided with first radio frequency signal circuit 110, second radio frequency signal circuit 120, third radio frequency signal circuit 130, fourth radio frequency signal circuit 140 in the cavity 1, the cavity 1 outside is provided with GSM port 42, DCS port 43, WCDMA port 44, 5G port 45 and antenna feeder port 41, and wherein GSM port 42, DCS port 43, WCDMA port 44, 5G port 45 are connected with the input of first radio frequency signal circuit 110, the input of second radio frequency signal circuit 120, the input of third radio frequency signal circuit 130, the input of fourth radio frequency signal circuit 140 respectively, and antenna feeder port 41 is connected with the output of first radio frequency signal circuit 110, the output of second radio frequency signal circuit 120, the output of third radio frequency signal circuit 130, The output terminals of the fourth rf signal lines 140 are commonly connected.
Further, the first rf signal line 110 is formed by connecting a four-cavity bandpass filter and a low-pass filter 31 in series, and the frequency band of the four-cavity bandpass filter is 806 and 960 MHz.
Further, the low-pass filter 31 has a 9-order filtering structure formed by connecting high and low impedance lines in series, a guide rod 32 is arranged in the cavity 1, one end of the low-pass filter 31 is connected with the guide rod 32, and the other end of the low-pass filter 31 is connected with the first resonant cavity 27.
Further, a dielectric protective sleeve is arranged on the outer layer of the four-cavity band-pass filter.
Further, the second rf signal line 120 is composed of a five-cavity bandpass filter, and the frequency band of the five-cavity bandpass filter is 1710-.
Further, the third rf signal line 130 is composed of an eight-cavity bandpass filter, and the frequency band of the eight-cavity bandpass filter is 1920-.
Further, an inductive capacitive coupling rod 61 is arranged between the second resonant cavity 25 and the third resonant cavity 26 of the third radio frequency signal line 130, and zero point suppression is increased through cavity hopping coupling, so that the volume of the combiner can be further reduced, and out-of-band suppression and isolation between ports are improved.
Further, the fourth rf signal line 120 is composed of a seven-cavity bandpass filter, and the frequency band of the seven-cavity bandpass filter is 3300-.
Further, the second radio frequency signal line 120, the third radio frequency signal line 130, and the fourth radio frequency signal line 140 adopt a common resonant cavity 21, a first coupling tuning rod 51 is disposed between the common resonant cavity 21 and the fourth resonant cavity 22 of the second radio frequency signal path 120, a second coupling tuning rod 52 is disposed between the common resonant cavity 21 and the fifth resonant cavity 23 of the third radio frequency signal path 130, a third coupling tuning rod 53 is disposed between the common resonant cavity 21 and the sixth resonant cavity 24 of the fourth radio frequency signal path 140, and the first coupling tuning rod 51, the second coupling tuning rod 52, and the third coupling tuning rod 53 can adjust coupling coefficients, control path bandwidths, and greatly reduce production and debugging difficulties.
Further, a resonant column is arranged in the common resonant cavity 21, a guide rod 32 is arranged in the cavity 1, the resonant column is connected with the guide rod 31 in a space coupling mode, and impedance matching is achieved by adjusting the distance between the guide rod and the resonant column. And a space coupling mode is used, so that the consistency of intermodulation indexes is ensured. The guide rod 31 is connected with inner cores of an antenna feeder port 41, a GSM port 42, a DCS port 43, a WCDMA port 44 and a 5G port 45, and a chamfer 11 is arranged in a cavity 1 where the second radio-frequency signal line 120 and the fourth radio-frequency signal line 140 are located.
The working principle of the embodiment is as follows: multiple groups of signals are respectively input from a GSM port 42, a DCS port 43, a WCDMA port 44 and a 5G port 45 according to frequency bands, the coupling coefficient can be adjusted by adjusting a coupling tuning rod through processing of a first radio-frequency signal circuit 110, a second radio-frequency signal circuit 120, a third radio-frequency signal circuit 130 and a fourth radio-frequency signal circuit 140, the impedance matching can be realized by adjusting the distance between a guide rod 32 and a resonant column to control the bandwidth of a path, then four paths of signals are combined, and finally the signals are output through an antenna feeder port 41.
Claims (10)
1. The utility model provides a four-port combiner for 5G room divides scene, includes a cavity, its characterized in that: be provided with first radio frequency signal circuit, second radio frequency signal circuit, third radio frequency signal circuit, fourth radio frequency signal circuit in the cavity, the cavity outside is provided with GSM port, DCS port, WCDMA port, 5G port and antenna feeder port, and wherein GSM port, DCS port, WCDMA port, 5G port are connected with the input of first radio frequency signal circuit, the input of second radio frequency signal circuit, the input of third radio frequency signal circuit, the input of fourth radio frequency signal circuit respectively, and antenna feeder port is connected with the output of first radio frequency signal circuit, the output of second radio frequency signal circuit, the output of third radio frequency signal circuit, the output of fourth radio frequency signal circuit jointly.
2. The four-port combiner applied to 5G room split scene according to claim 1, wherein: the first radio frequency signal line is formed by connecting a four-cavity band-pass filter and a low-pass filter in series, and the frequency range of the four-cavity band-pass filter is 806-960 MHz.
3. The four-port combiner applied to 5G room separation scene according to claim 2, wherein: the low-pass filter is of a 9-order filtering structure formed by connecting high-low impedance lines in series, a guide rod is arranged in the cavity, one end of the low-pass filter is connected with the guide rod, and the other end of the low-pass filter is connected with the first resonant cavity.
4. The four-port combiner applied to 5G room separation scene according to claim 2, wherein: the outer layer of the four-cavity band-pass filter is provided with a medium protective sleeve.
5. The four-port combiner applied to 5G room split scene according to claim 1, wherein: the second radio frequency signal line consists of a five-cavity band-pass filter, and the frequency band of the five-cavity band-pass filter is 1710-1880 MHz.
6. The four-port combiner applied to 5G room split scene according to claim 1, wherein: the third radio frequency signal line is composed of an eight-cavity band-pass filter, and the frequency band of the eight-cavity band-pass filter is 1920-2145 MHz.
7. The four-port combiner applied to 5G room separation scene according to claim 6, wherein: an inductive capacitive coupling rod is arranged between the second resonant cavity and the third resonant cavity of the third radio frequency signal circuit.
8. The four-port combiner applied to 5G room split scene according to claim 1, wherein: the fourth radio frequency signal line is composed of a seven-cavity band-pass filter, and the frequency range of the seven-cavity band-pass filter is 3300-3600 MHz.
9. The four-port combiner applied to 5G room split scene according to claim 1, wherein: the second radio-frequency signal circuit, the third radio-frequency signal circuit and the fourth radio-frequency signal circuit adopt a common resonant cavity, a first coupling tuning rod is arranged between the common resonant cavity and the fourth resonant cavity of the second radio-frequency signal passage, a second coupling tuning rod is arranged between the common resonant cavity and the fifth resonant cavity of the third radio-frequency signal passage, and a third coupling tuning rod is arranged between the common resonant cavity and the sixth resonant cavity of the fourth radio-frequency signal passage.
10. The four-port combiner applied to 5G room separation scene according to claim 9, wherein: the antenna comprises a public resonant cavity, and is characterized in that a resonant column is arranged in the public resonant cavity, a guide rod is arranged in the cavity, the resonant column is connected with the guide rod in a space coupling mode, the guide rod is connected with inner cores of an antenna feeder port, a GSM port, a DCS port, a WCDMA port and a 5G port, and chamfers are arranged in the cavity where a second radio-frequency signal circuit and a fourth radio-frequency signal circuit are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921819114.3U CN210403996U (en) | 2019-10-28 | 2019-10-28 | Four-port combiner applied to 5G room split scene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921819114.3U CN210403996U (en) | 2019-10-28 | 2019-10-28 | Four-port combiner applied to 5G room split scene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403996U true CN210403996U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921819114.3U Expired - Fee Related CN210403996U (en) | 2019-10-28 | 2019-10-28 | Four-port combiner applied to 5G room split scene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210403996U (en) |
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2019
- 2019-10-28 CN CN201921819114.3U patent/CN210403996U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 Termination date: 20211028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |