CN203466789U - Through-flow coupler - Google Patents
Through-flow coupler Download PDFInfo
- Publication number
- CN203466789U CN203466789U CN201320581395.XU CN201320581395U CN203466789U CN 203466789 U CN203466789 U CN 203466789U CN 201320581395 U CN201320581395 U CN 201320581395U CN 203466789 U CN203466789 U CN 203466789U
- Authority
- CN
- China
- Prior art keywords
- coupling
- port
- terminal
- output
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Provided in the utility model is a through-flow coupler capable of realizing direct current flowing. A feeder is used for direct current connection and connection to an indoor distribution system is realized; and direct current outputting is realized at each joint of the coupler. The coupling circuit is a four-port network; and the four ports include an input terminal, an output terminal, an isolation terminal and a coupling terminal. The input terminal, the output terminal and the coupling terminal are respectively connected to an input port, an output port and a coupling port, wherein the ports are arranged at the side of a box body. The output terminal and the coupling terminal are respectively provided with two segments of quarter-wave copper bars; a coil (L) is arranged between the two segments of quarter-wave copper bars; and capacitors (C5) and (C6) are respectively arranged at the two ends of the coil (L), wherein the capacitors (C5) and (C6) are respectively grounded. A blocking capacitor (C4) is arranged between the coupling terminal and the isolation terminal; and a blocking capacitor (C3) is arranged between the isolation terminal and a load (R2) that is grounded. Besides, the coupling circuit also includes an equivalent coupling capacitor (C2) for conduction transmission and coupling.
Description
Technical field
The utility model relates to a kind of coupler, is specifically applied to the indoor distributed system of TD-LTE frequency conversion system.
Background technology
Mobile data traffic growth is in recent years rapid, need to build the demand that TD-LTE network meets mobile subscriber.Because the operating frequency of TD-LTE is very high, about 2.6GHz, the loss of the signal of TD-LTE in feeder line is large, will be at the indoor two-way indoor distributed system of again spreading, difficulty of construction is large, and property is coordinated difficult, so TD-LTE frequency conversion system is by carrying out frequency conversion to a passage of TD-LTE MIMO binary channels RRU, realize transmitting two paths of signals in the antenna-feedback system of Yi road, reach the object of TD-LTE stream transmission.This system has greatly reduced Project Realization difficulty and quantities that mimo system is divided in TD-LTE chamber, is conducive to improve the performance of the TD-LTE of China Mobile chamber subsystem.This system need to be carried out converter technique at near-end and far-end, but far-end antenna is inconvenient to power, therefore need to provide direct current from near-end, direct current can transmit in feeder line, coupler and the power splitter of indoor distributed system, thereby realizes the power supply of far-end active antenna.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, provide a kind of can be by the cavity coupler of direct current.By loop, add direct current, in access indoor distributed system, there is direct current output each joint of coupler.
The utility model solves the technical scheme that its technical problem adopts: a kind of through-flow coupler, and its coupling circuit is four port networks, four ports are respectively input, output, isolation end, coupled end; Input, output and coupled end are connected to respectively the input port that box body side arranges, output port and coupling port;
Output and coupled end respectively add one section of quarter-wave copper rod, between above-mentioned two sections of quarter-wave copper rods, add a coil L, and coil L two ends respectively add a capacitor C 5, C6, and capacitor C 5, C6 be ground connection respectively;
Between coupled end and isolation end, add capacitance C4, between isolation end and load R2, add capacitance C3, load R2 ground connection;
Coupling circuit also comprises the equivalent coupled capacitor C 2 of transmission conductor and coupling conductors.
Further: above-mentioned input port, output port and coupling port are N connector or DIN type joint.
Preferably: above-mentioned load R2 resistance value is 50 Ω.
The utility model compared with prior art has the following advantages:
The utility model is through-flow coupler, adds direct current by loop at machine room, the input port of coupler, and delivery outlet, coupling aperture has direct current output, and feeder line, the power splitter of indoor distributed system have direct current, direct current are provided can to the equipment of far-end.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of common housing coupler;
Fig. 3 is circuit theory diagrams of the present utility model.
Description of reference numerals:
1-input, 2-output, 3-isolation end, 4-coupled end, 5-quarter-wave copper rod, 6-input port, 7-output port, 8-coupling port, 9-box body.
Embodiment
Below in conjunction with drawings and Examples, the utility model embodiment is described:
As shown in Figure 1, Figure 2 and Figure 3, a kind of through-flow coupler of the utility model, the schematic diagram that Fig. 3 is through-flow coupler, it is four port networks, four ports are respectively input 1, output 2, isolation end 3, coupled end 4.Wherein, input 1, output 2 and coupled end 4 are connected to respectively the input port 6 that box body 9 sides arrange, output port 7, and coupling port 8.The schematic diagram of itself and common housing coupler is basically identical, just at output 2 and coupled end 4, respectively adds one section of quarter-wave copper rod 5, and C5, C6 can make quarter-wave copper rod be equivalent to short circuit, and high frequency useful signal cannot pass through.Add capacitance C3, C4, in order to avoid direct current is carried in the upper heating of 50 Ω load R2.Coupling capacitance C2 is the equivalent capacity of transmission conductor, coupling conductors, and the size of the through-flow coupler degree of coupling can be by regulating the spacing of transmission conductor, coupling conductors to realize.
6 input ports that are through-flow coupler in Fig. 1,7 output ports that are through-flow coupler, 8 coupling port that are through-flow coupler, 9 box bodys that are through-flow coupler.According to actual needs, each port can be N connector or DIN type joint.When practical operation, whether the center conductor that will check through-flow coupler before access shorted to earth, and when normal, center conductor is opened a way over the ground.
5 of above-mentioned two sections of quarter-wave copper rods add a coil L, and coil L two ends respectively add an electric capacity.Because these two electric capacity (C5, C6) are to high frequency short circuit, quarter-wave short-circuit line is very large to the resistance of operating frequency, be equivalent to open circuit, so direct current can pass through.Owing to considering that load R2 can not directly add direct current, therefore before load, need to add electric capacity C3.According to the operating frequency of coupler and coupling aperture size of current, calculate inductance value, coil turn number and the thickness of coil wire diameter, the input of cavity coupler, output, coupled end can be led to direct current like this.
By reference to the accompanying drawings the utility model preferred implementation is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.
Do not depart from design of the present utility model and scope and can make many other changes and remodeling.Should be appreciated that the utility model is not limited to specific execution mode, scope of the present utility model is defined by the following claims.
Claims (3)
1. a through-flow coupler, its coupling circuit is four port networks, four ports are respectively input (1), output (2), isolation end (3), coupled end (4); It is characterized in that: input (1), output (2) and coupled end (4) are connected to respectively the input port (6) that box body (9) side arranges, output port (7) and coupling port (8);
Output (2) and coupled end (4) respectively add one section of quarter-wave copper rod (5), between above-mentioned two sections of quarter-wave copper rods (5), add a coil (L), coil (L) two ends respectively add an electric capacity (C5, C6), and electric capacity (C5, C6) is ground connection respectively;
Between coupled end (4) and isolation end (3), add capacitance (C4), between isolation end (3) and load (R2), add capacitance (C3), load (R2) ground connection;
Coupling circuit also comprises the equivalent coupled electric capacity (C2) of transmission conductor and coupling conductors.
2. a kind of through-flow coupler as claimed in claim 1, is characterized in that: described input port (6), output port (7) and coupling port (8) are N connector or DIN type joint.
3. a kind of through-flow coupler as claimed in claim 1 or 2, is characterized in that: described load (R2) resistance value is 50 Ω.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320581395.XU CN203466789U (en) | 2013-09-13 | 2013-09-13 | Through-flow coupler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320581395.XU CN203466789U (en) | 2013-09-13 | 2013-09-13 | Through-flow coupler |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203466789U true CN203466789U (en) | 2014-03-05 |
Family
ID=50179126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201320581395.XU Expired - Fee Related CN203466789U (en) | 2013-09-13 | 2013-09-13 | Through-flow coupler |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203466789U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105226389A (en) * | 2015-09-29 | 2016-01-06 | 北京爱科迪通信技术股份有限公司 | Satellite antenna signals coupling/uncoupling locking device |
-
2013
- 2013-09-13 CN CN201320581395.XU patent/CN203466789U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105226389A (en) * | 2015-09-29 | 2016-01-06 | 北京爱科迪通信技术股份有限公司 | Satellite antenna signals coupling/uncoupling locking device |
CN105226389B (en) * | 2015-09-29 | 2018-07-27 | 北京爱科迪通信技术股份有限公司 | Satellite antenna signals coupling/uncoupling, which attaches together, to be set |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105187096A (en) | Power line carrier signal coupling circuit | |
CN204886948U (en) | Power line carrier signals interconnected circuit | |
TWI565250B (en) | Method and device for maintaining the quality of power line communication carrier | |
CN203466789U (en) | Through-flow coupler | |
CN201774246U (en) | Network connection common mode signal protection circuit | |
CN102638291A (en) | Power carrier communication system of overhead line | |
CN204906390U (en) | Multinode broadband dc power line carrier communication impedance matching circuit | |
CN106685483B (en) | System for coupling power distribution station broadband power line carrier zero line | |
CN202696599U (en) | Power line carrier communication system of overhead line | |
CN202535354U (en) | Cable shielding layer electric power carrier communication system | |
CN101557025B (en) | Compact GSM/CDMA shared combiner for transceiving | |
CN203301445U (en) | Double-input and double-output module circuit of radio frequency switch | |
CN202662156U (en) | Ammeter power utilization information transmission system | |
CN202524418U (en) | Transmission device for power carrier communication | |
CN203313216U (en) | Multi-medium internet gateway device | |
CN202662765U (en) | Novel cavity low-pass prototype power divider | |
CN205336272U (en) | APF communication system | |
CN201450499U (en) | Field bus access device | |
CN105515611A (en) | APF (active power filter) communication system | |
CN201490303U (en) | Universal mother plate type massive matrix switch | |
CN201113553Y (en) | Mixing line carrier network communication carrier signal coupling device | |
CN205040038U (en) | Multifunctional communication device | |
CN203708245U (en) | Electric power carrier multiphase signal coupler used for civil air defense | |
CN101014160B (en) | Multi-core coaxial feeder feed combined arrester used for TD-SCDMA base station | |
CN204537829U (en) | A kind of micro-band impedance transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20170913 |