KR101559519B1

KR101559519B1 - Feeder sharing device and system

Info

Publication number: KR101559519B1
Application number: KR1020150074636A
Authority: KR
Inventors: 김태기
Original assignee: (주)더원아이앤씨
Priority date: 2015-05-28
Filing date: 2015-05-28
Publication date: 2015-10-14

Abstract

According to an embodiment of the present invention, a plurality of feed input ports into which a plurality of feed lines connected to a repeater or a base station for each of a plurality of mobile communication providers are input; A plurality of directional couplers for distributing a predetermined electric power from each of the electric power supply lines and outputting the electric power to the auxiliary electric power supply line; A hybrid coupler for receiving a transmission / reception signal of each mobile communication company from a plurality of the sub-power supply lines and combining and outputting the transmission / reception signals; And an output port output from the hybrid coupler and outputting an output line for transmitting a plurality of frequency band signals and transmission / reception signals.
Accordingly, the feeder router and the sharing system can integrate the feeder line of the mobile communication company providing the mobile communication service using different frequency bands by using the router, and then provide the mobile communication service in the local area using the feeder line extending from the router Provides a power line router and a shared system.

Description

{FEEDER SHARING DEVICE AND SYSTEM}

The present invention relates to a feeder sharing device and a sharing system, and more particularly, to a mobile communication system that minimizes active mutual distortion modulation caused by interference of communication signals having transmission and reception frequencies or different frequency bands in a mobile communication system, To a feeder router and a feeder line sharing system in a mobile communication system.

Most of the shaded areas that occur when providing mobile communication services are in buildings, tunnels, etc. Efforts to solve these problems are being conducted for each mobile communication company. As a part of this effort, individual operators provide mobile communication services to shaded areas such as buildings by connecting their own frequency bands to one feeder line. In order to achieve this, a feeder router is used, and the feeder router is heavy in weight, large in size, and expensive in terms of integrating several frequency bands possessed by individual providers into one. Above all, the charge sharing router has a problem of intermodulation distortion (IMD) problem in which two or more frequency band signals interfere with each other to generate undesired parasitic signals.

The intermodulation distortion may be an active intermodulation distortion (AIMD) generated in an active element such as a power amplifier or a passive element such as a filter or a divider. Passive intermodulation distortion (PIMD) generated by the device.

Active intermodulation distortion is a problem in high power communication systems such as satellite communication unlike passive intermodulation distortion and has been neglected in mobile communication services. However, as the mobile communication service is expanded, the interference between adjacent base stations increases and the problem of passive intermodulation distortion increases. As a result, the problem of passive intermodulation distortion as well as active intermodulation distortion becomes serious. Therefore, the problem of passive intermodulation distortion as well as active intermodulation distortion should be considered when designing base station antennas. Nevertheless, the cause of the passive intermodulation distortion has not been clarified and the mitigation method has not been actively researched.

On the other hand, in the "feeder sharer and feeder line sharing system in mobile communication system ", a mobile communication system is disclosed in Patent Registration No. 10-14824990 entitled " Active Intermodulation Distortion A feeder router and a feeder line sharing system in a mobile communication system. Hereinafter, problems of the prior art and the related art will be described with reference to the drawings.

1 is a diagram illustrating a feed line sharing system in a mobile communication system according to the above-described prior art.

Referring to FIG. 1, a signal received from a repeater of each provider is input and filtered, and a reception frequency signal and a transmission frequency signal are separated and output. More specifically, the first business repeater, the second business repeater, the third business repeater, ..., the Nth business repeater and the like can be connected to one router. As described above, the transmission and reception signals shared in one router can be separated from the transmission signal and the reception signal in the router, and can be connected to separate antennas in the forward and reverse directions. At this time, active intermodulation distortion may occur in a connector connection part, a router, a feeder cable, a splitter, and an antenna connected to a repeater of each provider.

In such a conventional technology, the transmit signal and the receive signal of each provider are separated, and only the transmitters of the respective providers are combined and output as separate output terminals, and the receiver is configured as a separate input terminal, To solve the problem of inter-band isolation and active intermodulation distortion.

However, since the forward and reverse feed lines are connected to each other in the conventional router, the structure is complicated, resulting in a large size, a heavy weight, and a high production cost. In addition, both the forward and reverse feeder lines must be installed in a double manner, and the antennas must be installed in duplicate.

Of course, to reduce the burden on dual feeder lines, it has been disclosed that the cost of laying the feeder line can be reduced by recombining the transmitter signal and the receiver signal when the forward loss occurs to some extent (about 10 dB) It is not possible to fundamentally solve the problem of installing a dual feed line until a certain time has elapsed.

Patent Registration No. 10-14824990 (issued on January 22, 2015)

The present invention relates to a power supply line sharing device and a power supply line sharing device capable of providing a mobile communication service in a transliteration region using a feeder line extending from the router after integrating a feeder line of a mobile communication company providing mobile communication services using different frequency bands using a router System.

Another object of the present invention is to provide a feeder router and a sharing system capable of providing a high quality mobile communication service by minimizing the active intermodulation distortion problem that may occur in a feeder line in providing the above mobile communication service .

It is another object of the present invention to provide a feeder router and a feeder line sharing system in a mobile communication system which is small, light, and low in production cost.

Other objects and advantages of the present invention will become apparent to those skilled in the art from the following detailed description.

According to an embodiment of the present invention, a plurality of feed input ports into which a plurality of feed lines connected to a repeater or a base station for each of a plurality of mobile communication providers are input; A plurality of directional couplers for distributing a predetermined electric power from each of the electric power supply lines and outputting the electric power to the auxiliary electric power supply line; A hybrid coupler for receiving a transmission / reception signal of each mobile communication company from a plurality of the sub-power supply lines and combining and outputting the transmission / reception signals; And an output port output from the hybrid coupler and outputting an output line for transmitting a plurality of frequency band signals and transmission / reception signals.

More preferably, the directional coupler is formed by the number of the feed lines.

More preferably, the directional coupler includes a directional coupler input port connected to the feeder line, a sub-feeder line coupled to the feeder line adjacent to the feeder line, and a sub-feeder connected to the sub- And an output port.

Even more preferably, the distance between the feeder line and the sub-feeder line is adjusted to adjust the power to be distributed to the sub-feeder line.

Meanwhile, the hybrid coupler is an N × N type having N input ports and N output ports when N feed lines are input to the feed line router.

In addition, the output line is characterized by a single line shape capable of processing all the transmission and reception signals of a plurality of mobile communication companies using different frequency bands.

According to another embodiment of the present invention, a plurality of feed input ports into which a plurality of feed lines connected to a repeater or a base station for each of a plurality of mobile communication providers are input; A plurality of directional couplers for distributing a predetermined amount of power from each of the power supply lines and outputting the divided power to output lines; And an output port through which the output line for transmitting a plurality of frequency band signals and transmission / reception signals is output.

More preferably, the directional coupler includes a directional coupler input port connected to the feed line, an output line coupled to the feed line adjacent to the feed line formed in a U-shape in the directional coupler, And an output port connected to an output line output to the outside.

More preferably, the distance between the power supply line and the output line is adjusted to adjust the power to be distributed to the output line.

The output line sequentially passes through the plurality of directional couplers and loads mobile communication transmission / reception signals coupled from all the feed lines connected to the directional coupler.

According to another aspect of the present invention, there is provided a feed line sharing system in a mobile communication system, comprising: a plurality of feed lines connected to a repeater or a base station for each of a plurality of mobile communication providers; A feeder router for distributing a part of an output of a transmission / reception signal transmitted by the feeder line using a directional coupler and coupling transmission / reception signals of different frequency bands to the mobile communication provider; A line-shaped output line for transmitting a transmission / reception signal coupled through the power line sharing device; And an antenna connected to one end of the output line.

More preferably, the feeder router is formed for each layer excluding the uppermost layer of the building.

Further, the hybrid coupler is formed on the uppermost layer of the building.

As described above, the feeder router and the sharing system according to an embodiment of the present invention integrate the feeder lines of a mobile communication company providing mobile communication services using different frequency bands using a router, and then use a feeder line extending from the router And provides a feeder router and a sharing system capable of providing mobile communication services in a transliteration area.

In addition, in providing the above mobile communication service, the feeder sharing device and the sharing system according to an embodiment of the present invention can provide a high quality mobile communication service by minimizing the active intermodulation distortion problem that may occur in the feeder line.

Further, a feeder router and a sharing system according to an embodiment of the present invention provide a feeder router and a feeder line sharing system in a mobile communication system that is small, light, and low in production cost.

The effects of the present invention will be clearly understood and understood by those skilled in the art, either through the specific details described below, or during the course of practicing the present invention.

1 is a diagram showing a feeder line sharing system in a mobile communication system according to the related art;
2 is a view illustrating a feeder router according to a preferred embodiment of the present invention;
3 is a view illustrating a feeder router according to another preferred embodiment of the present invention;
4 is a view illustrating a feeder line sharing system according to a preferred embodiment of the present invention.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

2 is a view illustrating a feeder router according to a preferred embodiment of the present invention.

Referring to FIG. 2, a feed line router 100 according to an embodiment of the present invention may be configured such that a plurality of feed lines 200 and a plurality of directional couplers 120 are coupled in parallel. More specifically, the feeder router 100 includes a plurality of feed input ports 110, a plurality of directional couplers 120, a hybrid coupler 130, a plurality of output ports 140, and a plurality of feedout ports 150, . &Lt; / RTI >

The feed input port 110 may be formed as many as the number of feeder lines 200 connected to the feeder router 100. For example, as shown in FIG. 2, the feed input port 110 may include SKT, KT and LG U +, the feeder line 200 of the upper mobile communication company can be connected to the three feed input ports 110, respectively. The power feeding line 200 of each of the A, B and C mobile communication companies is connected to the first power feeding input port 110A, the second power feeding input port 110B and the third power feeding input port 110C, And the feeder lines 200 of the three above are called first feeder lines 200A, second feeder line 200B and third feeder line 200C. In the following description of the present invention, alphabets A, B, and C shown after each symbol in the reference numerals mean first to third. Of course, the number of the power feeding input ports 110 and the feeder lines 200 may be variously changed within a range that is obvious to a person having ordinary knowledge in the technical field to which the present invention belongs (hereinafter referred to as a "person skilled in the art"). Of course.

The feeder lines 200 connected to the feeder router 100 through the respective feed input ports 110 are connected to the respective directional couplers 120. The directional coupler 120 may be formed in various numbers according to the selection of a person skilled in the art to correspond to the number of the feeder lines 200 inputted in the same manner as the feed input port 110. For the sake of convenience, And third directional couplers 120A, 120B, and 120C are connected to the first to third feeders 200A, 200B, and 200C, respectively. More specifically, the plurality of feeder lines 200 are connected to each other through a plurality of directional couplers 120 and a directional coupler input port 121, and a plurality of feeder lines 200 are provided in the directional coupler 120, Lt; RTI ID = 0.0 > 122 < / RTI > The auxiliary power supply line 122 is connected to the hybrid coupler 130 through a secondary feed output port 123. Meanwhile, the feeder line 200 is connected to the outside of the directional coupler 120 through a directional coupler output port 124.

The directional coupler 120 combines a main transmission line and a sub transmission line of a transmission line such as a coaxial line to generate a coupling wave in only one side of the sub transmission line with respect to a transmission wave in the direction in which the main transmission line exists, Means a coupling circuit that separates a transmission wave in which the coupling wave is generated only in the other side of the transmission line by the direction. In the above embodiment, the first to third feeder lines 200A, 200B and 200C serve as main transmission lines, and the first to third sub-feeders 122A, 122B and 122C serve as sub-transmission lines.

The first to third feeder lines 200A, 200B and 200C are controlled by adjusting the interval between the first to third feeder lines 200A, 200B and 200C and the first to third sub-feeder lines 122A, 122B and 122C, The output from the first to third auxiliary feeders 122A, 122B, and 122C can be adjusted to 3 dB, 6 dB, 10 dB, and the like. Outputs input through the first through third feed input ports 110A, 110B, and 110C along the first through third feed lines 200A, 200B, and 200C are input to the first through third sub-feed lines 122A, 122B, Except for the output branched to the first to third feeder lines 122A, 122B, and 122C, and the remainder is discharged through the first to third feeder output ports 150A, 150B, and 150C along the first to third feeder lines 200A, And can be connected to other layers in the building as shown.

A part of the signals transmitted through the first to third feeders 200A, 200B and 200C may be transmitted to the first to third sub-feeders 122A and 122B using the first to third directional couplers 120A, 120B and 120C, 122B, and 122C, and the signals of relatively low power transmitted through the first to third sub-feeders 122A, 122B, and 122C are coupled to the hybrid coupler 130 as described below The active intermodulation distortion can be minimized when a signal is coupled without using a band pass filter as in the conventional art. In addition, the size and weight of the feeder router 100 can be drastically reduced, and the manufacturing cost can be reduced. Further, as described below, since it is unnecessary to double-install the output line output from the hybrid coupler 130, the installation cost of the feeder line sharing system can be greatly reduced.

The first through third sub-feeders 122A, 122B, and 122C output from the first through third directional couplers 120A, 120B, and 120C through the first through third sub-feedout output ports 123A, 123B, 122C are input to the hybrid coupler 130. [ More specifically, the hybrid coupler 130 receives the signal of each mobile communication company through the first through third sub-feeders 122A, 122B, and 122C and the first through third hybrid coupler input ports 131A, 131B, And outputs the combined signals to the first to third hybrid coupler output ports 132A, 132B, and 132C. The hybrid coupler 130 illustrated in FIG. 2 receives a signal through the feeder line 200 of three mobile communication terminals as described above, and thus may be a 3 × 3 type having three input ports and three output ports, And may be variously selected in the N × N form corresponding to the number of the feeder lines 200 to be input. The first to third hybrid coupler output ports 132A, 132B and 132C may be connected to the first to third output lines 300A, 300B and 300C. The first to third output lines 300A and 300B And 300C extend outside the feeder router 100 through the first to third output ports 140A, 140B, and 140C and are connected to an antenna in the building to transmit and receive signals of the respective mobile communication companies to provide mobile communication services have.

The first through third output lines 300A, 300B and 300C may be formed as a single line capable of processing all the transmission and reception signals of a plurality of mobile communication companies transmitting and receiving data using different frequency bands, Unlike the prior art, it is possible to minimize the active intermodulation distortion while avoiding unnecessary double laying of the line.

3 is a view illustrating a feeder router according to another preferred embodiment of the present invention.

Referring to FIG. 3, the feeder sharer 100 according to an embodiment of the present invention may be configured such that a plurality of feeder lines 200 and a plurality of directional couplers 120 are coupled in series. More specifically, the feeder router 100 may include a plurality of feed input ports 110, a plurality of directional couplers 120, an output port 140, and a plurality of feed output ports 150.

The feed input port 110 may be formed as many as the number of feeder lines 200 interconnected with the feeder router 100. For example, feed lines of A, B, C, D, 200, the feeder lines 200 of the upper mobile communication company can be connected to the N feed input ports 110, respectively. For convenience, the power feed line 200 and the power feed input port 110 connected to the A, B, C, D, ..., N mobile communication companies are connected to the first feed input port 110A, the second feed input port 110B, The power feeding line 110 is referred to as a power feeding input port 110C, a fourth feeding power input port 110D, ..., an Nth power feeding input port 110N, and each power feeding line 200 input to each power feeding input port 110 is connected to each first feeding line The second feeder line 200B, the third feeder line 200C, the fourth feeder line 200D, ..., the N-feeder line 200N.

The feeder lines 200 connected to the feeder router 100 through the respective feed input ports 110 are connected to the respective directional couplers 120. The directional coupler 120 may be formed in various numbers according to the selection of a person skilled in the art to correspond to the number of the feeder lines 200 inputted in the same manner as the feed input port 110. As shown in FIG. 3, N directional couplers 120A, 120B, 120C, 120D, ... 120N may be mutually connected to the first to Nth feeders 200A, 200B, 200C, 200D, ..., 200N. More specifically, a plurality of the feed lines 200 are input into each directional coupler 120 through the directional coupler input port 121, formed in a U-shape inside the directional coupler 120, and output from the directional coupler output port 124, And then returns to the outside of the directional coupler 120. The feeder line 200 output from the directional coupler 120 may be connected to another layer in the building through the feeder output port 150.

The feed line 200 may be coupled to the output line 300 located adjacent to the directional coupler 120. The distance between the first to Nth feeders 200A, 200B, 200C, 200D, ..., 200N and the output line 300 may be adjusted so that the first to Nth feeders 200A, 200B, 200C, The output from the feeder lines 200A, 200B, 200C, 200D, ... 200N to the output line 300 can be adjusted to 3 dB, 6 dB, 10 dB, and the like. And 110N input through the first to Nth feeding input ports 110A, 110B, 110C, 110D, ... 110N along the first to Nth feeders 200A, 200B, 200C, 200D, 200B, 200C, 200D, ..., 200N except for the output branched to the output line 300. The first to Nth feeder output ports 150A, 150B, 150C, 150D, ... 150N.

The output line 300 is connected to each of the first to Nth feeders 200A, 200B, 200C, 200D, ..., 200N so as to be sequentially coupled to the first to Nth feeders 200A, 200B, 120B, 120C, 120D, ..., 120N through which the first to Nth directional couplers 120A, 120B, ... 200N pass. More specifically, the output line 300 enters the N-directional coupler 120N through the N-th output line input port 125N and then enters the N-directional coupler 120N through the N-output line output port 126N ) To the outside. And then enters the N-1 directional coupler through the N-1 output line input port and then outputs to the outside of the N-1 directional coupler through the N-1 output line output port. .., C, B, A directional coupler 120 by repeating this process. Each time the output line 300 passes through each directional coupler 120, a mobile communication transmission / reception signal coupled from the feeder line 200 connected to the directional coupler 120 passing through the output line 300 is loaded When the output line 300 is output through the output port 140 after passing through all the directional couplers 120, transmission / reception signals of all mobile communication companies to which the feed line 200 is connected can be loaded on the output line 300 do. The output line 300 extends to the outside of the feeder router 100 through an output port 140 and is connected to an antenna in a building to transmit and receive the mobile communication signals to provide a mobile communication service. The output line 300 may be formed as a single line that can process both transmission and reception signals of a plurality of mobile communication companies that transmit and receive data using different frequency bands. Therefore, unlike the conventional art, It is possible to prevent double installation of unnecessary lines while minimizing the number of lines.

Part of the signals transmitted through the first to Nth feeders 200A, 200B, 200C, 200D, ..., 200N may be output to the output line 300 using the directional coupler 120 Thus, active intermodulation distortion can be minimized when a signal is coupled without using a bandpass filter as in the conventional art. 3, since the hybrid coupler 130 can be omitted in comparison with the parallel configuration shown in FIG. 2, the size and weight of the feeder router 100 can be further reduced, and the manufacturing cost can be reduced do.

4 is a view illustrating a feeder line sharing system according to a preferred embodiment of the present invention.

Referring to FIG. 4, a plurality of feeder lines 200 connected to a plurality of repeaters or base stations for respective mobile communication carriers, a part of the output of transmission and reception signals transmitted through the feeder line 200 and transmitted by the feeder line 200, A power feeder sharer 100 for separating the transmission and reception signals of different frequency bands according to the separated mobile communication companies by using the power feeder 120, A line 300, and an antenna 400 connected to one end of the output line.

More preferably, the feeder sharer 100 may be formed for each layer except the uppermost layer of the building, and the hybrid coupler 130 described in detail with reference to FIG. 2 instead of the feeder sharer 100 may be formed on the uppermost layer of the building. have.

For example, assuming that a mobile communication signal is transmitted and received through a plurality of feeder lines 200A, 200B, and 200C connected to a repeater of mobile communication A, B, and C or a base station in a four-story building, The feeder lines 200A, 200B and 200C are connected to the feeder sharers 100A, 100B and 100C of the respective layers and the hybrid couplers 130A and 130B, respectively, (Not shown). Mobile communication signals transmitted and received through the feed lines 200A, 200B and 200C are built in the feed line routers 100A, 100B and 100C each time they pass through the feed line routers 100A, 100B and 100C formed in the respective layers (Refer to reference numeral 120 in FIG. 2). Therefore, when the signal arrives at the uppermost layer, the power level of the transmission / reception signal is already low enough to ignore the active intermodulation distortion upon signal combining, and there is no need to distribute the signal any more, The transmission and reception signals supplied to the uppermost layer through the feed lines 200A, 200B, and 200C are combined using only the hybrid coupler 130 without using the feeder router 100. [

The feeder sharers 100A, 100B and 100C or the hybrid coupler 130 transmit and receive mobile communications A, B and C through output lines 300A, 300B and 300C connected to output ports And transmits the combined signal. Here, the output lines 300A, 300B, and 300C may be formed as a single line capable of transmitting both transmission and reception signals. One end of each of the output lines 300A, 300B and 300C may be provided with a plurality of antennas 400A, 400B and 400C capable of transmitting and receiving a mobile communication signal with the terminal.

The output lines 300A, 300B and 300C shown in FIG. 4 are connected to the hybrid coupler 130 when a plurality of feed lines 200 and a plurality of directional couplers 120 are coupled in parallel, as shown in FIG. 3, when the plurality of feeder lines 200 and the plurality of directional couplers 120 are coupled in series, as shown in FIG. 3, the feeder router 100 May be one strand. Of course, according to the embodiment, the one stranded output line 300 may be divided into a plurality of strands and connected to the plurality of antennas 400.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

(100): feeder router (110): feeder input port
(120): directional coupler (121): directional coupler input port
(122): auxiliary power supply line (123): auxiliary power supply output port
(124): directional coupler output port (125): output line input port
(126): Output line output port (130): Hybrid coupler
(131): Hybrid coupler input port (132): Hybrid coupler output port
(140): Output port (150): Feeding output port
(200): feeder line (300): output line
(400): antenna

Claims

A plurality of feed input ports to which a plurality of feed lines connected to a repeater or a base station for each of a plurality of mobile communication carriers are input;
A plurality of directional couplers for distributing a predetermined electric power from each of the electric power supply lines and outputting the electric power to the auxiliary electric power supply line;
An N × N hybrid coupler for receiving and transmitting the transmission / reception signals of the respective mobile communication companies from a plurality of the sub-power supply lines and having N input ports and N output ports for inputting N feed lines; And
And an output port output from the hybrid coupler and outputting an output line for transmitting a plurality of frequency band signals and transmission / reception signals.

The method according to claim 1,
Wherein the directional coupler is formed by the number of the feeder lines.

3. The method of claim 2,
The directional coupler includes a directional coupler input port connected to the feed line,
A secondary feeder line which is adjacent to the feeder line and is mutually coupled with the feeder line, and
And a secondary feed output port connected to a secondary feeder line output to the outside of the directional coupler.

The method of claim 3,
And adjusts a distance between the feeder line and the sub-feeder line to adjust the power to be distributed to the sub-feeder line.

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The method according to claim 1,
Wherein the output line is in the form of a single line capable of processing all the transmission and reception signals of a plurality of mobile communication companies using different frequency bands.

A plurality of feed input ports to which a plurality of feed lines connected to a repeater or a base station for each of a plurality of mobile communication carriers are input;
A plurality of directional couplers for distributing a predetermined amount of power from each of the power supply lines and outputting the divided power to output lines; And
And an output port through which the output line for transmitting a plurality of frequency band signals and transmission / reception signals is loaded by stacking mobile communication transmission / reception signals coupled from all the feed lines connected to the directional coupler sequentially through all of the plurality of directional couplers Feeder router.

8. The method of claim 7,
The directional coupler includes a directional coupler input port connected to the feed line,
An output line adjacent to the feed line formed in a U-shape inside the directional coupler and coupled to the feed line,
And an output port connected to an output line output to the outside of the directional coupler.

9. The method of claim 8,
And adjusts an electric power to be distributed to the output line by adjusting an interval between the feed line and the output line.

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A feeder line sharing system in a mobile communication system,
A plurality of feeder lines connected to a repeater or a base station for each of a plurality of mobile communication providers;
A feeder router for distributing a part of an output of a transmission / reception signal transmitted by the feeder line using a directional coupler and coupling transmission / reception signals of different frequency bands to the mobile communication provider;
A hybrid coupler formed at the top of the building;
A line-shaped output line for transmitting a transmission / reception signal coupled through the power line sharing device; And
And an antenna connected to one end of the output line.

12. The method of claim 11,
Wherein the feeder sharer is formed for each layer excluding the uppermost layer of the building.

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