CN215451728U

CN215451728U - Multi-system combiner platform

Info

Publication number: CN215451728U
Application number: CN202121915372.9U
Authority: CN
Inventors: 李伟; 胡茸
Original assignee: Guangzhou Chenwei Network Technology Co ltd
Current assignee: Guangzhou Chenwei Network Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-07
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a multi-system combiner platform which comprises a base body, two cover plates and an electric bridge, wherein the two cover plates are respectively covered on the upper surface and the lower surface of the base body, the electric bridge is arranged in the middle of one side of the base body, the upper surface and the lower surface of the base body are respectively provided with a first resonant cavity and a second resonant cavity which are separated from each other, a plurality of first band-pass channels separated from each other by isolating ribs are arranged in the first resonant cavity, a plurality of second band-pass channels separated from each other by isolating ribs are arranged in the second resonant cavity, a first public resonant column coupled with all the first band-pass channels is further arranged in the first resonant cavity, a second public resonant column coupled with all the second band-pass channels is further arranged in the second resonant cavity, and two ANT ports respectively coupled with the first public resonant column and the second public resonant column are arranged on the electric bridge. The structure of the utility model has the characteristics of small volume, light weight, small debugging difficulty and good electrical property.

Description

Multi-system combiner platform

Technical Field

The utility model belongs to the technical field of filters, and particularly relates to a multi-system combiner platform.

Background

A multisystem access platform, also called POI (Point Of interface), is characterized in that a plurality Of passive devices such as a combiner, a duplexer, an isolator and an electric bridge are integrated on one device through reasonable design, thereby realizing downlink combined output Of a plurality Of communication operators and a plurality Of frequency band system signals (including GSM/CDMA/DCS/WCDMA/TD-SCDMA/LTE and the like), receiving an uplink signal and outputting the uplink signal to a corresponding receiver port in a shunting way, avoiding repeated resource input caused by different communication operators and different system construction, and effectively saving cost input. Any two frequency bands or a plurality of specific frequency bands are selected according to different application scenes for combining and shunting, so that the distribution sharing of a plurality of systems is completed, and the purposes of fully utilizing resources and saving investment are achieved. The main function of the system is to provide isolation and separation and combination paths among different systems, solve transmission interference among the systems, prevent blockage introduced by a receiving path and effectively improve transmission intermodulation indexes of information sources.

At present, domestic POI is mainly applied to multi-network combination and co-construction sharing of three operators of mobile, communication and telecommunication. The existing mobile communication network comprises GSM900, DCS1800, TD-LTE (F), TD-SCDMA (A), TD-LTE (E) and TD-LTE (D) of China Mobile, GSM900, DCS1800, FDD-LTE1.8, WCDMA, TD-LTE2.3 and TD-LTE2.6 of China Unicom, CDMA800, FDD-LTE1.8, FDD-LTE2.1, TD-LTE2.3 and TD-LTE2.6 of China telecom and other system signals.

The wide application of POI can avoid the resource waste caused by the repeated construction of the signal distribution system of each operator, greatly reduce the maintenance cost of the system, but because of many operators, many service signals, different coverage requirements of each region and different cost control in China, the networking mode is very many, and the multiple networking requirements can not be satisfied; traditional single operator combiner needs to be changed into multisystem combiner POI platform, and prior art generally realizes through multifrequency combiner + electric bridge + quick-witted case + connector cable scheme, and overall structure is complicated, leads to combiner POI platform bulky, and weight is big, and debugging installation difficulty, shortcoming such as electrical property is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a multi-system combiner platform which has the characteristics of small volume, light weight, small debugging difficulty and good electrical performance.

In order to solve the technical problem, the utility model provides a multi-system combiner platform, which comprises a base body, two cover plates and an electric bridge, wherein the two cover plates are respectively covered on the upper surface and the lower surface of the base body, the electric bridge is arranged in the middle of one side of the base body, the upper surface and the lower surface of the base body are respectively provided with a first resonant cavity and a second resonant cavity which are separated from each other, a plurality of first band-pass channels separated from each other by isolating ribs are arranged in the first resonant cavity, a plurality of second band-pass channels separated from each other by isolating ribs are arranged in the second resonant cavity, a first common resonant column coupled with all the first band-pass channels is further arranged in the first resonant cavity, a second common resonant column coupled with all the second band-pass channels is further arranged in the second resonant cavity, and two ANT ports coupled with the first common resonant column and the second common resonant column are arranged on the electric bridge.

Furthermore, one side of the base body is provided with seven first input ports in one-to-one correspondence with the first band-pass channels and eight second input ports in one-to-one correspondence with the second band-pass channels, and the first input ports and the second input ports are respectively positioned at the upper side and the lower side of the bridge and are distributed and arranged in a left-to-right manner;

the first input port includes:

the system comprises a first port suitable for telecommunication LTE-FDD system signals, a second port suitable for telecommunication CDMA800 system signals, a third port suitable for telecommunication/Unicom GSM900 system signals, a fourth port suitable for telecommunication/Unicom NR3.5G system signals, a fifth port suitable for mobile TD-LTE/NR2.6G system signals, a sixth port suitable for Unicom UL2100 system signals and a seventh port suitable for mobile TD-LTE F & A frequency band system signals;

the second input port includes:

the system comprises an eighth port suitable for telecommunication LTE-FDD1.8G standard signals, a ninth port suitable for mobile GSM1800 standard signals, a tenth port suitable for mobile TD-LTE/NR2.6G standard signals, an eleventh port suitable for TD-LTE E frequency band standard signals, a twelfth port suitable for telecommunication/Unicom NR3.5G standard signals, a thirteenth port suitable for telecommunication/Unicom GSM800 standard signals, a fourteenth port suitable for telecommunication/Unicom GSM900 standard signals and a fifteenth port suitable for telecommunication LTE-FDD2.1G standard signals.

Further, the first band-pass channel comprises a first channel and a second channel coupled with the first port, a third channel coupled with the second port, a fourth channel coupled with the third port, a fifth channel coupled with the fourth port, a sixth channel coupled with the fifth port, a seventh channel and an eighth channel coupled with the sixth port, and a ninth channel and a tenth channel coupled with the seventh port; the second band-pass channels comprise an eleventh channel and a twelfth channel coupled with the eighth port, a thirteenth channel and a fourteenth channel coupled with the ninth port, a fifteenth channel coupled with the tenth port, a sixteenth channel coupled with the eleventh port, a seventeenth channel coupled with the twelfth port, an eighteenth channel coupled with the thirteenth port, a nineteenth channel coupled with the fourteenth port, and a twentieth channel and a twenty-first channel coupled with the fifteenth port; and a plurality of resonance columns which are coupled and connected through the coupling ribs/the coupling windows are arranged in each channel.

Further, the first port is coupled and connected with the first resonant column of the first channel and the first resonant column of the second channel through a third common resonant column; the sixth port is respectively coupled and connected with the first resonant column of the seventh channel and the first resonant column of the eighth channel through a fourth common resonant column; the seventh port is respectively coupled and connected with the first resonant columns of the ninth channel and the tenth channel through a fifth common resonant column; the eighth port is respectively coupled and connected with the first resonant column of the eleventh channel and the first resonant column of the twelfth channel through a sixth common resonant column; the ninth port is coupled and connected with the first resonant column of the thirteenth channel and the fourteenth channel through a seventh common resonant column respectively; and the fifteenth port is coupled and connected with the first resonant column of the twentieth channel and the twenty-first channel respectively through the eighth common resonant column.

Further, the third common resonance column is connected with the transmission line of the first port through a silver-plated wire; one end of the silver-plated wire is fixedly connected with the third public resonance column through a screw, and the other end of the silver-plated wire is welded and fixed with the transmission piece of the first port.

Further, a ninth common resonant column, a tenth common resonant column and an eleventh common resonant column are further arranged in the first resonant cavity, and the ninth common resonant column is respectively coupled with the resonant columns at the tail ends of the seventh channel, the eighth channel and the ninth channel; the tenth common resonance column is respectively coupled with the resonance column at the tail of the sixth channel and the ninth common resonance column; the eleventh common resonance column is respectively coupled with the resonance column at the tail of the fifth channel and the tenth common resonance column, and the eleventh common resonance column is coupled with the first common resonance column.

Furthermore, a twelfth common resonance column, a thirteenth common resonance column and a fourteenth common resonance column are further arranged in the second resonance cavity, and the twelfth common resonance column is respectively coupled and connected with the resonance columns at the tail ends of the twelfth channel, the thirteenth channel and the fourteenth channel; the thirteenth common resonance column is respectively coupled and connected with the resonance column at the tail of the eleventh channel and the twelfth common resonance column; the fourteenth common resonance column is respectively coupled with the resonance columns at the ends of the fifteenth channel, the sixteenth channel and the seventeenth channel, and the thirteenth common resonance column and the fourteenth common resonance column are respectively coupled with the second common resonance column.

Furthermore, a connecting rib is arranged between the first public resonance column and the isolation rib and between the second public resonance column and the isolation rib, and the height of the connecting rib is lower than that of the first public resonance column/the second public resonance column.

Furthermore, connecting pieces are arranged between the first common resonance column and the second common resonance column and the transmission line of the ANT port, and the third channel, the fourth channel, the eighteenth channel and the nineteenth channel are in coupling connection with the connecting pieces.

Furthermore, the middle of one side of the base body is provided with a containing cavity for containing the bridge, and two through holes which are respectively communicated with the first resonant cavity and the second resonant cavity are arranged in the containing cavity.

Furthermore, a plurality of tuning screws respectively matched with the resonance column, the coupling ribs and the coupling window are arranged on the cover plate in a penetrating mode.

The utility model has the following beneficial effects:

the bridge is arranged in the middle of one side face of the base body, so that all band-pass channels on the two resonant cavities extend towards the middle, are collected, are coupled with the common resonant column and then are coupled with the ANT port on the bridge, the layout of the band-pass channels is facilitated, the length of each band-pass channel is reduced, the mutual influence among the band-pass channels can be reduced, and the bridge has the characteristics of small size, light weight, small debugging difficulty and good electrical performance; the application range is wide, and the system can be applied to large buildings and municipal facilities which need to be accessed by a plurality of network systems, such as large exhibition halls, subways, railway stations, airports, government office machines, hotels, stadiums, exhibition centers, exhibition halls and the like; the whole integrated design that adopts has reduced the processing and the assembly of a considerable accessories, and the uniformity of structure obtains greatly promoting, and the performance is more excellent, and the volume is littleer. The device is particularly suitable for high-tension and vibration environments such as subway tunnels.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model:

fig. 1 is a schematic diagram of a multi-system combiner platform in an embodiment;

fig. 2 is a schematic diagram of the multi-system combiner platform in the embodiment after the bridge is removed;

FIG. 3 is a schematic diagram of an embodiment of an electrical bridge;

FIG. 4 is a schematic diagram of a resonant disk in an embodiment;

fig. 5 is a front view of a multi-system combiner platform in an embodiment;

fig. 6 is a schematic top view of the multi-system combiner platform with the cover plate removed in the embodiment;

fig. 7 is a schematic view of a lower surface of the multi-system combiner platform with a cover plate removed in the embodiment;

FIG. 8 is a diagram illustrating a capacitive coupling between a port and a resonating column in one embodiment.

Detailed Description

For a fuller understanding of the technical aspects of the present invention, reference should be made to the following detailed description taken together with the accompanying drawings; it should be noted that, if "first" or "second" is described in the text, it is used to distinguish different components, and the like, and does not represent the order of precedence, and does not limit "first" and "second" to be different types.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; 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.

Examples

As shown in fig. 1-7, the multi-system combiner platform shown in this embodiment includes a substrate 1, two cover plates 2 respectively covering upper and lower surfaces of the substrate 1, and a bridge 3 disposed in the middle of one side of the substrate 1, where the upper and lower surfaces of the substrate 1 are respectively provided with a first resonant cavity 10 and a second resonant cavity 11 that are separated from each other, the first resonant cavity 10 is provided with a plurality of first band-pass channels partitioned by isolation ribs 12, and the second resonant cavity 11 is provided with a plurality of second band-pass channels partitioned by isolation ribs 12; the first band-pass channel and the second band-pass channel respectively comprise channels suitable for mobile, communication and telecommunication signal frequency band input/output, a first common resonance column 13 coupled with all the first band-pass channels is further arranged in the first resonant cavity 10, namely all the first band-pass channels are combined through the first common resonance column, a second common resonance column 14 coupled with all the second band-pass channels is further arranged in the second resonant cavity 11, namely all the second band-pass channels are combined through the second common resonance column, and two ANT ports 31 respectively coupled with the first common resonance column 13 and the second common resonance column 14 are arranged on the bridge 3; when the antenna is in an uplink state, a plurality of frequency band system signals input through a plurality of band-pass channels are combined through the first common resonance column or the second common resonance column and then output to the ANT port; and during uplink, a signal input from the ANT port is output to the corresponding band-pass channel after being shunted by the first common resonance column or the second common resonance column.

In the above, the bridge is arranged in the middle of one side surface of the substrate, so that all band-pass channels on the two resonant cavities extend towards the middle, are collected, are coupled with the common resonant column and then are coupled with the ANT port on the bridge, the layout of the band-pass channels is facilitated, the length of each band-pass channel is reduced, the mutual influence among the band-pass channels can be reduced, and the bridge has the characteristics of small volume, light weight, small debugging difficulty and good electrical performance

In this embodiment, one side of the base 1 is provided with seven first input ports corresponding to the first band pass channels one to one and eight second input ports corresponding to the second band pass channels one to one, and the first input ports and the second input ports are respectively located at the upper side and the lower side of the bridge and are distributed in the left-right direction, that is, the input ports are distributed on one side surface of the base in the left-right direction, so that all signals are input from the same side.

As shown in fig. 4, the seven first input ports include a first port 101 suitable for telecommunication LTE-FDD system signals, a second port 102 suitable for telecommunication CDMA800 system signals, a third port 103 suitable for telecommunication/unicom GSM900 system signals, a fourth port 104 suitable for telecommunication/unicom NR3.5G system signals, a fifth port 105 suitable for mobile TD-LTE/NR2.6G system signals, a sixth port 106 suitable for unicom UL2100 system signals, and a seventh port 107 suitable for mobile TD-LTE F & a band system signals.

As shown in fig. 4, the eight second input ports include an eighth port 108 suitable for telecommunication LTE-FDD1.8G standard signals, a ninth port 109 suitable for mobile GSM1800 standard signals, a tenth port 110 suitable for mobile TD-LTE/NR2.6G standard signals, an eleventh port 111 suitable for TD-LTE E band standard signals, a twelfth port 112 suitable for telecommunication/connected NR3.5G standard signals, a thirteenth port 113 suitable for telecommunication/connected GSM800 standard signals, a fourteenth port 114 suitable for telecommunication/connected GSM900 standard signals, and a fifteenth port 115 suitable for telecommunication LTE-FDD2.1G standard signals.

In the above, the first port is suitable for transmitting signals with the frequency band of 1735-; the second port is suitable for transmitting signals with the frequency band of 820-; the third port is suitable for transmitting signals with the frequency band of 889-915MHz/934-960 MHz; the fourth port is suitable for transmitting signals with the frequency band of 3300-3700 MHz; the fifth port is suitable for transmitting signals with the frequency band of 2515-2675 MHz; the sixth port is suitable for transmitting signals with the frequency ranges of 1940-1980MHz/2130-2170 MHz; the seventh port is suitable for transmitting signals with the frequency bands of 1885-1915MHz/2010-2025 MHz; the eighth port is suitable for transmitting signals with the frequency ranges of 1765-1785MHz/1860-1880 MHz; the ninth port is suitable for transmitting signals with the frequency bands of 1710-1735MHz/1805-1830 MHz; the tenth port is suitable for transmitting signals with the frequency bands of 2515-2675 MHz; the eleventh port is suitable for transmitting signals with the frequency bands of 2320 and 2370 MHz; the twelfth port is suitable for transmitting signals with the frequency band of 3300-3700 MHz; the thirteenth port is suitable for transmitting signals with the frequency band of 398-743MHz/753-803 MHz; the fourteenth port is suitable for transmitting signals with the frequency bands of 889-915MHz/934-960 MHz; the fifteenth port is suitable for transmitting signals with the frequency band of 1920-1980MHz/2110-2170 MHz.

In this embodiment, the plurality of first band pass channels include a first channel 201 and a second channel 202 coupled to the first port 101, a third channel 203 coupled to the second port 102, a fourth channel 204 coupled to the third port 103, a fifth channel 205 coupled to the fourth port 104, a sixth channel 206 coupled to the fifth port 105, a seventh channel 207 and an eighth channel 208 coupled to the sixth port 106, and a ninth channel 209 and a tenth channel 210 coupled to the seventh port 107; the number of second band-pass channels includes an eleventh channel 211 and a twelfth channel 212 coupled to the eighth port 108, a thirteenth channel 213 and a fourteenth channel 214 coupled to the ninth port 109, a fifteenth channel 215 coupled to the tenth port 110, a sixteenth channel 216 coupled to the eleventh port 111, a seventeenth channel 217 coupled to the twelfth port 112, an eighteenth channel 218 coupled to the thirteenth port 113, a nineteenth channel 219 coupled to the fourteenth port 114, and a twentieth channel 220 and a twenty-first channel 221 coupled to the fifteenth port 115; and a plurality of resonance columns 6 which are coupled and connected through the coupling ribs 4/the coupling windows 5 are arranged in each channel; in the above, the two channels are coupled to the single port to respectively correspond to the two frequency band sections input by the port, and only one channel is coupled to the single port for inputting the two frequency bands, so that the useless signal frequency between the two frequency bands is used as the debugging range of the channel, that is, the debugging range of the channel is between the minimum value and the maximum value of the two frequency bands.

In a POI working system, two passbands with different frequency bands need to share one output port, the tail cavities of the respective passbands need to be connected to the ports by silver-plated wires in a welding mode in a traditional mode, and manual welding needs to be carried out for three times, so that the defects that materials need to be added, the manual welding cost is increased, errors exist in the welding positions of the ports, the time delay consistency is poor, the probability of poor debugging is high, and only a cover plate can be dismounted for maintenance when the failure occurs; in this embodiment, the first port 101 is coupled with the first resonant posts 6 of the first channel 201 and the second channel 202 through the third common resonant post 15, the third common resonant post 15 is connected with the transmission plate 100 of the first port 101 through the silver-plated wire 7, one end of the silver-plated wire 7 is fixedly connected with a screw hole arranged at one side of the third common resonant post 15 through a screw, and the other end of the silver-plated wire is welded and fixed with the transmission plate of the first port, i.e. a common cavity is added at the head end of the passband required by two different frequency bands, so that only one silver-plated wire is needed to be welded with the transmission line, welding spots and welding times are reduced, and the delay of each channel is debugged through a tuning screw on the cover plate 2, which has adjustability, reduces the occurrence of defects, and shortens the product debugging time; similarly, the sixth port 106 is coupled to the first resonant column 6 of the seventh channel 207 and the eighth channel 208 through the fourth common resonant column 16; the seventh port 107 is coupled and connected with the first resonant column 6 of the ninth channel 209 and the tenth channel 210 through the fifth common resonant column 17; the eighth port 108 is coupled to the first resonant column 6 of the eleventh and

twelfth channels

211 and 212, respectively, through the sixth common resonant column 18; the ninth port 109 is coupled to the first resonant column of the thirteenth channel 213 and the fourteenth channel 214 through the seventh common resonant column 19; the fifteenth port 115 is coupled to the first resonant column of the twentieth channel 220 and the twenty-first channel 221 through the eighth common resonant column 20, and the connection between the above ports and the common resonant column is the same as the connection between the third common resonant column and the first port.

As shown in fig. 6, a ninth common resonant column 21, a tenth common resonant column 22 and an eleventh common resonant column 23 are further disposed in the first resonant cavity 10, and the ninth common resonant column 21 is coupled with the resonant column 6 at the end of the seventh channel 207, the eighth channel 208 and the ninth channel 209 respectively; the tenth common resonant column 22 is respectively coupled with the resonant column at the end of the sixth channel 206 and the ninth common resonant column 21; the eleventh common resonant column 23 is coupled with the resonant column at the end of the fifth channel 205 and the tenth common resonant column 22, respectively, and the eleventh common resonant column 23 is coupled with the first common resonant column 13; in the above, because the ultra-wideband POI designed in this embodiment has a frequency of 3000MHz from 700 and a bandwidth of 3G, a common port is used for input/output, and there are many branch frequency bands, it cannot be ensured that the tail cavity (i.e. the resonant column) of each frequency band can be arranged around the common cavity (i.e. the first common resonant column), and only the tail cavity is arranged around the common cavity, the tail cavity of some channels is far away from the common cavity, if the tail cavity is not coupled with the common cavity in a cascade manner, the tail cavity can be coupled by welding in a transmission line manner, the transmission line manner increases the quality of the welding point, the intermodulation throughput is affected by the quality of the welding point, and after the transmission line reaches a certain length, the resonant frequency occurs, the transmission lines of multiple channels are lapped together, when debugging the product, the mutual influence of standing waves is large, and the port is debugged by using the tuning screw, the tuning amount cannot meet the actual requirement; therefore, in the embodiment, according to the frequency band characteristics of the access system, the ultra-wideband combining schemes such as the 1-level wideband, the 2-level wideband, the 3-level wideband, the 4-level wideband and the like are respectively adopted to perform step-by-step combining, so that the output of the multi-system combining is finally realized, and the debugging difficulty is reduced; the method specifically includes the steps that a ninth common resonance column is used for combining three channels, then the ninth common resonance column and another channel are combined to a tenth common resonance column, the tenth common resonance column and another channel are combined to an eleventh common resonance column, and finally the eleventh common resonance column is combined to the first common resonance column.

As shown in fig. 7, a twelfth common resonant column 24, a thirteenth common resonant column 25 and a fourteenth common resonant column 26 are further disposed in the second resonant cavity 11, and the twelfth common resonant column 24 is coupled to the resonant columns 6 at the ends of the twelfth channel 212, the thirteenth channel 213 and the fourteenth channel 214, respectively; the thirteenth common resonance column 25 is respectively coupled with the resonance column at the end of the eleventh channel 211 and the twelfth common resonance column 24; the fourteenth common resonant column 26 is coupled with the resonant columns at the ends of the fifteenth channel 215, the sixteenth channel 216 and the seventeenth channel 217, respectively, and the thirteenth common resonant column 25 and the fourteenth common resonant column 26 are coupled with the second common resonant column 14, respectively; in a similar way, a plurality of public resonance columns are adopted to combine a plurality of channels step by step to realize cascade connection, so that the output of multi-system combination is finally realized, and the debugging difficulty is reduced.

Specifically, connecting ribs 27 are arranged between the first common resonance column 13 and the isolation rib 12 and between the second common resonance column 14 and the isolation rib 12, and the height of the connecting ribs 27 is lower than that of the first common resonance column/the second common resonance column; in addition, coupling ribs 4 are arranged between the first common resonance column/the second common resonance column and the resonance columns on the channels around the first common resonance column/the second common resonance column; according to the method, the bandwidth distribution of the multisystem combiner platform is 700M-3700M, the coupling bandwidths of the first resonance column and the second resonance column and each band-pass channel around the first resonance column and the second resonance column are respectively required to meet, the distance between the common cavity and the cover plate surface is reduced as much as possible by adopting a mode of connecting the common cavity (namely the first common resonance column/the second common resonance column) and the cavity wall (namely the isolation rib), and the surplus of the coupling bandwidth value between the common cavity and each branch channel can be increased, so that the height of the coupling rib between the common cavity and each branch channel is not higher than 1/2 of the depth of the cavity of the resonant cavity, the resonance frequency generated by the increase of the height of the coupling rib is reduced, and the debugging difficulty of a product is reduced.

As shown in fig. 6 and 7, a tab 33 is provided between each of the first and second

common resonant columns

13 and 14 and the transmission line 32 of the ANT port 31, and the third, fourth, eighteenth and

nineteenth vias

213, 214, 218 and 219 are coupled to the tabs 33 on the respective sides; this POI, band includes: 700 and 3700 MHz; the antenna is lapped on an ANT transmission line in an inductive coupling mode through a connecting sheet, one end of the transmission sheet is welded on the public resonance column, and the other end of the transmission sheet is welded on the transmission line, so that low-frequency signals of 700-plus 900MHz are separated, the time delay consistency of low frequency is ensured, the influence of the low frequency part on the time delay of the high frequency part behind 1800MHz is reduced, and the debugging difficulty increase caused by too many combining channels of the primary common cavity (namely the first public resonance column/the second public resonance column) is reduced.

In a POI system, GSM800 has a requirement of a transmission frequency band of 700MHz, and in a limited volume, in order to achieve a required frequency, a traditional method is to shorten the distance between a resonance column and a cover plate and increase the diameter of a disc on the resonance column, but the problem is that after the resonance disc is increased, the safe distance between the top surface of the disc and the cover plate and the safe distance between the periphery of the resonance disc and the wall of a cavity are smaller than 1.0, and through a test, the safe distance is smaller than a passband of 1.0, so that a product is easy to have a sparking condition during a high-power test, the interior of the cavity is oxidized, insertion loss is increased, and middle-stage operation of the POI is caused; as shown in fig. 6, in the present embodiment, a resonant disk 61 is fixed on the resonant column of the eighteenth channel 218 by screws, and a vertically downward flange 62 is disposed at the outer edge of the resonant disk 61; therefore, the required frequency can be ensured to be reached, the safe distance of the product is also ensured, and the power ignition phenomenon caused by insufficient safe distance is avoided.

As shown in fig. 4, a cavity 8 for accommodating the bridge 3 is provided in the middle of one side of the substrate 1, and two through holes 81 respectively communicating with the first resonant cavity 10 and the second resonant cavity 11 are provided in the cavity 8 for the transmission line to pass through; the installation of the electric bridge adopts an independent embedded structure, so that the disassembly and maintenance of the whole machine caused by the bad electric bridge are avoided, and when the electric bridge is bad, the maintenance work can be finished only by disassembling the electric bridge.

Specifically, the cover plate 2 is provided with a plurality of tuning screws 200 respectively matched with the resonant column, the coupling rib and the coupling window.

In a specific embodiment, as shown in fig. 8, coupling holes 60 are provided at one side of the resonance column 6 in the fifteenth channel and the sixteenth channel for connecting with the ports, and main rods inserted into the coupling holes 60 are provided at the tenth port and the eleventh port, so that capacitive coupling is provided between the tenth port and the fifteenth channel and between the eleventh port and the sixteenth channel, and compared with the conventional method of connecting the resonance column and the connector by welding, capacitive coupling is provided by using the coupling holes to input signals, so that solder joints can be removed, quality problems caused by solder joints can be avoided, and production efficiency can be improved.

In other embodiments, the substrate is made of aluminum.

In other embodiments, the base is integrally die cast.

In other embodiments, the resonance columns on the first channel, the tenth channel, the eleventh channel and the twenty-first channel adopt split type resonance columns, namely the resonance columns are fixed in the channels through screws, and the resonance columns integrally molded with the base body in a die-casting mode are adopted on other channels, so that the material cost and the labor cost are reduced, the error rate during product assembly is reduced, the temperature drift consistency of the product is high in a high-temperature and low-temperature state, the production cycle is shortened, and the manufacturability of the product is greatly improved.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a many system combiner platform, its characterized in that includes the base member, two covers respectively fit the apron of base member upper and lower surface department and locate the middle electric bridge of base member one side, the upper and lower face of base member is equipped with first resonant cavity and the second resonant cavity that separates each other respectively, be equipped with the first band-pass passageway that a plurality of was cut apart through keeping apart the muscle in the first resonant cavity, be equipped with the second band-pass passageway that a plurality of was cut apart through keeping apart the muscle in the second resonant cavity, still be equipped with the first public resonance post with all first band-pass passageways coupling in the first resonant cavity, still be equipped with the second public resonance post with all second band-pass passageways coupling in the second resonant cavity, be equipped with two ANT ports that respectively with first public resonance post and second public resonance post coupling connection on the electric bridge.

2. The multi-system combiner platform of claim 1, wherein seven first input ports corresponding to the first bandpass channels one to one and eight second input ports corresponding to the second bandpass channels one to one are disposed on one side of the base, and the first input ports and the second input ports are respectively disposed on upper and lower sides of the bridge and distributed left and right;

the first input port includes:

the second input port includes:

3. The multi-system combiner platform of claim 2, wherein the first bandpass channel comprises a first channel and a second channel coupled to a first port, a third channel coupled to a second port, a fourth channel coupled to a third port, a fifth channel coupled to a fourth port, a sixth channel coupled to a fifth port, a seventh channel and an eighth channel coupled to a sixth port, and a ninth channel and a tenth channel coupled to a seventh port; the second band-pass channels comprise an eleventh channel and a twelfth channel coupled with the eighth port, a thirteenth channel and a fourteenth channel coupled with the ninth port, a fifteenth channel coupled with the tenth port, a sixteenth channel coupled with the eleventh port, a seventeenth channel coupled with the twelfth port, an eighteenth channel coupled with the thirteenth port, a nineteenth channel coupled with the fourteenth port, and a twentieth channel and a twenty-first channel coupled with the fifteenth port; and a plurality of resonance columns which are coupled and connected through the coupling ribs/the coupling windows are arranged in each channel.

4. The multi-system combiner platform of claim 3, wherein the first port is coupled to a first resonant column of the first channel and a first resonant column of the second channel via a third common resonant column, respectively; the sixth port is respectively coupled and connected with the first resonant column of the seventh channel and the first resonant column of the eighth channel through a fourth common resonant column; the seventh port is respectively coupled and connected with the first resonant columns of the ninth channel and the tenth channel through a fifth common resonant column; the eighth port is respectively coupled and connected with the first resonant column of the eleventh channel and the first resonant column of the twelfth channel through a sixth common resonant column; the ninth port is coupled and connected with the first resonant column of the thirteenth channel and the fourteenth channel through a seventh common resonant column respectively; and the fifteenth port is coupled and connected with the first resonant column of the twentieth channel and the twenty-first channel respectively through the eighth common resonant column.

5. The multi-system combiner platform of claim 4, wherein a ninth common resonant column, a tenth common resonant column, and an eleventh common resonant column are further disposed in the first resonant cavity, and the ninth common resonant column is coupled to the resonant columns at the ends of the seventh channel, the eighth channel, and the ninth channel, respectively; the tenth common resonance column is respectively coupled with the resonance column at the tail of the sixth channel and the ninth common resonance column; the eleventh common resonance column is respectively coupled with the resonance column at the tail of the fifth channel and the tenth common resonance column, and the eleventh common resonance column is coupled with the first common resonance column.

6. The multi-system combiner platform of claim 5, wherein a twelfth common resonant column, a thirteenth common resonant column, and a fourteenth common resonant column are further disposed in the second resonant cavity, and the twelfth common resonant column is coupled to the resonant columns at the end of the twelfth channel, the thirteenth channel, and the fourteenth channel, respectively; the thirteenth common resonance column is respectively coupled and connected with the resonance column at the tail of the eleventh channel and the twelfth common resonance column; the fourteenth common resonance column is respectively coupled with the resonance columns at the ends of the fifteenth channel, the sixteenth channel and the seventeenth channel, and the thirteenth common resonance column and the fourteenth common resonance column are respectively coupled with the second common resonance column.

7. The multi-system combiner platform of claim 6, wherein connecting ribs are disposed between the first common resonant pillar and the isolation rib and between the second common resonant pillar and the isolation rib, and the height of the connecting ribs is lower than the height of the first common resonant pillar/the second common resonant pillar.

8. The multi-system combiner platform of claim 7, wherein a tab is disposed between each of the first and second common resonant columns and the transmission line of the ANT port, and the third, fourth, eighteenth, and nineteenth channels are coupled to the tab.

9. The multi-system combiner platform of claim 8, wherein a cavity is disposed in a middle of one side of said base for accommodating said bridge, and two through holes are disposed in said cavity and respectively communicate with said first resonant cavity and said second resonant cavity.

10. The multi-system combiner platform of claim 9, wherein a plurality of tuning screws are disposed through the cover plate and respectively engage with the resonant posts, the coupling ribs, and the coupling windows.