KR100954256B1 - Common use wireless network integrating apparatus - Google Patents

Abstract

PURPOSE: A public wireless network integrating device is provided to output an RF signal serviced in corresponding frequency bands through a signal distribution device and a signal combining device as one integrated wireless communication signal with a broadband feature. CONSTITUTION: One or more signal distributing devices(100,200,300) distribute two or more inputted radio frequency signals. The signal distributing devices integrally share radio frequency signals. One or more signal coupling apparatuses(400,500,600,700) combine an RF signal outputted from one signal distributing device with an RF signal outputted from another signal distributing device. The signal coupling apparatuses transmit the combined RF signal using a single transmission line.

Description

COMMON USE WIRELESS NETWORK INTEGRATING APPARATUS}

The present invention relates to an integrated device for a public wireless network, and outputs an RF signal serviced in each frequency band as one integrated wireless communication signal having broadband characteristics. The present invention relates to a public wireless network integrator that protects the appearance of a building or a facility by installing it in a shaded area and has an economic effect.

In general, a mobile communication system for transmitting and receiving voice or data signals wirelessly while stationary or moving by using a portable terminal, for example, a mobile phone (CDMA2000, WCDMA), digital multimedia broadcasting (DMB) and the mobile Internet (Wi-bro) The system, the self-internet, and the like may have different frequency bands or different communication methods. In such communication systems, many base stations are installed by a cell method to maintain a quality of service, and in particular, a plurality of relay devices are installed to cover a shadow area where service is not provided.

The wireless repeater is installed in a radio shadow area where it is difficult to install a base station to relay a signal between the base station and the mobile terminal, so that the mobile terminal can make a call even in the radio shadow area. Wireless repeaters are used to eliminate radio shadow areas in buildings, underground, tunnels, etc. in service areas. For mobile service providers aiming at wireless service, it is very important to secure service coverage in the shadow area economically.

In other words, in order to solve a relatively small radio shadow area, it is better to install a repeater than a base station in terms of cost and performance. Therefore, in order to solve shadow areas such as buildings, tunnels, subway stations, and railway tracks, transmission lines are installed for buildings, tunnels, subway stations, railway tracks, etc. to independently install repeaters.

The same is true to solve the shadow area in the wireless network as well as the mobile communication network using the radio as a terminal.

1 is a schematic diagram of a network configuration for installing a wireless communication network in a radio wave shading area such as a building, a tunnel, a subway station, a railway line, and the like independently of each conventional wireless network. For example, as shown in FIG. 1, in order to solve the shadow areas 40a, 40b, 40c, and 40d of each floor of the building, the wireless network 10 and the four mobile communication networks (20) are provided. 6 transmission lines, such as digital multimedia broadcasting (hereinafter referred to as DMB) network, are independently provided to antennas 50a, 50b, 50c, 50d, 50e, and 50f for providing wireless services. Connected.

FIG. 2 is a block diagram illustrating a method of combining four different RF signals by using a hybrid coupler in a conventional frequency band and distributing the signals to four ports.

As shown in FIG. 2, an RF signal F1 is input to an input port of one hybrid coupler 60, and an RF signal is distributed to two output ports of the hybrid coupler. In this case, the insertion loss of one hybrid coupler is 3db.

Therefore, in order to distribute four RF signals and output them as one integrated signal, four hybrid couplers of a first stage for inputting four RF signals and a hybrid coupler of a second stage for receiving eight distributed RF signals 8 And eight hybrid couplers in three stages for combining eight distributed RF signals into two different RF signals, and four hybrid couplers in four stages for combining four different RF signals. The signal outputs an integrated signal having a signal power of (F1 + F2 + F3 + F4) / 16.

In FIG. 2, in order to output an integrated signal having a signal power of (F1 + F2 + F3 + F4) / 16, a four-stage hybrid coupler must be configured. Here, since the insertion loss of one hybrid coupler is 3db, the total insertion loss is 12db, which causes a large power loss.

As shown in FIG. 2, since insertion loss is large in the process of distributing / combining signals, a large power loss occurs and a large number of circuit components are mounted, thereby making it difficult to construct a circuit.

As shown in FIG. 1, the independent transmission line is installed in each sound region 40a, 40b, 40c, 40d of buildings, tunnels, subway stations, railway lines, etc. according to the wireless communication networks 10, 20, and 30. As a result, the appearance of buildings or facilities is damaged and not good. In addition, considering the total length of the transmission line and the total number of installed antennas (24) according to each wireless communication network (6), there is a problem that it is economically inefficient.

The present invention has been made to solve the above problems, and outputs an RF signal serviced in each frequency band as one integrated wireless communication signal having broadband characteristics through a signal distribution means and a signal combining means, one transmission line Its purpose is to provide public wireless network integrated device that protects the appearance of buildings or facilities and has economic effects by installing them in shaded areas such as furnace buildings, tunnels, subway stations, and railway lines.

Public wireless network integrator of the present invention for realizing the above object is at least one signal distribution means for integrating and sharing at least two or more RF signals input, and integrated outputted by the signal distribution means And a signal combining means for combining the integrated RF signal output by each signal distribution means for combining the RF signal with the integrated RF signal output by the other signal distribution means and transmitting it to a single transmission line. do.

The signal distribution means may include a front end hybrid coupler for outputting a first RF signal in which N independent RF signals are respectively input to the N input ports, and the N / 2 RF signals are integrated at the N output ports. And a rear hybrid coupler which is input to the N input ports and outputs the second RF signal in which the N RF signals are integrated at the N output ports so that the first RF signals output from the N output ports do not overlap each other. It features.

The signal combining means may be a multiplexer which combines one integrated RF signal output by the signal distribution means for each frequency band and outputs the integrated RF signal.

In addition, it characterized in that it further comprises a monitoring means for monitoring whether one integrated wireless communication signal output by the signal coupling means is normally output.

In addition, the monitoring means is a coupler for extracting the signal power from the integrated wireless communication signal power path is connected to the transmission line through which the one integrated wireless communication signal is transmitted, the power signal extracted by the coupler to the two same power signal A two-way splitter for distributing a signal, a down converter for downconverting the frequency of the signal output from the two-way splitter to a frequency band corresponding to a bandpass filter, a detector for measuring an output signal of the downconverter, And a LCD display for receiving a measurement signal and calculating and processing the signal, and an LCD display for receiving a signal output from the controller and displaying a normal state of signal power to the outside.

In addition, the monitoring means is characterized by detecting the local oscillation frequency of the local oscillator by dividing the local oscillation frequency into two frequency bands by using two phase-locked loops to move and fix the local oscillation frequency because the integrated wireless communication signal exhibits the broadband characteristics. do.

In addition, the down-converter unit includes a low noise amplifier for amplifying the integrated wireless communication signal while suppressing amplification of the integrated wireless communication signal output from the 2-way splitter to noise, and a band pass filter for the integrated wireless communication signal which is an output signal of the low noise amplifier. A down mixer for converting to a corresponding frequency, a local oscillator for supplying a local oscillation frequency for frequency synthesis to the down mixer, a phase locked loop for moving and fixing a local oscillation frequency of the local oscillator to a desired frequency, And a power amplifier for amplifying the power of the integrated wireless communication signal passing through the bandpass filter.

In addition, the band pass filter is characterized in that the crystal filter.

The public wireless network integrator may further include a broadband antenna connected to an output line of a transmission line to perform a wireless communication service on one integrated wireless communication signal output by the signal coupling means.

In addition, the broadband antenna is characterized in that it comprises a reflecting plate having a circular shape, a connector provided in the center of the reflecting plate, and a radiating element connected to the connector to emit and receive signals.

In addition, the radiating element has the form of an inverted triangle, it characterized in that the two conductive plates having an L-shaped structure in the center of the connector is connected to the connector using a lead wire at a right angle to each other.

In addition, the conductive plate is characterized in that the projecting surface is formed on the upper side and the side.

According to the integrated apparatus for public wireless networks according to the present invention, a wireless communication network such as a wireless network, a mobile communication network, a DMB, etc. is outputted using a signal distribution means and a signal combining means to output a single integrated wireless communication signal using a single transmission line, a building, By implementing wireless service in shaded areas such as tunnels, subway stations and railway lines, the appearance of buildings or facilities is protected and economical.

In addition, there is an advantage that the quality of the entire wireless communication network having the broadband characteristics by the monitoring means for measuring and managing the signal extracted from the one integrated wireless communication signal.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Public wireless network integrator of the present invention is a signal distribution means for the common use of multiple RF signals for each frequency band, one integrated RF signal output by the signal distribution means for each frequency band one without distinction of each frequency band Signal combining means for combining one integrated RF signal output for each frequency band to transmit using only a transmission line, and to perform a wireless communication service to one integrated wireless communication signal output by the signal combining means It includes a broadband antenna connected to the output line of the transmission line.

3 is a schematic diagram of a network configuration for laying up a wireless network such as a building, a tunnel, a subway station, a railway line, and the like by using the public wireless network integrator 1000 according to the present invention. As shown in FIG. 3, the wireless self-network 10, the mobile communication network 20 of LGT / SKT / KT / KTF, and the wireless communication network of the DMB 30 are one outputted by the public wireless network integrator 1000 of the present invention. The broadband antenna 900 is connected to an output terminal of one transmission line in order to transmit the integrated wireless communication signal of the building to the shaded areas 40a, 40b, 40c, and 40d of each floor.

Hereinafter, a public wireless network integrator 1000 of the present invention is disclosed.

4 is a block diagram showing a method of outputting a single integrated wireless communication signal by integrating several RF signals for each frequency band using the public wireless network integrated device 1000 according to the present invention.

As an embodiment of the present invention, three frequency bands are divided into a low band of 698 to 960 MHz, a high band of 1710 to 2170 MHz, and a UHF band of 380 to 512 MHz, and four bands of a low band of 698 to 960 MHz according to each frequency band. RF signals (F1, F2, F3, F4), four RF signals (F5, F6, F7, F8) in the high band of 1710-2170 MHz, four RF signals (F9, F10, F11) in the UHF band of 380-512 MHz , F12 are input to the input ports of the signal distribution means (100, 200, 300), respectively.

As an embodiment of the present invention, a case in which RF signals located in respective frequency bands are input to the input ports of the signal distribution unit by dividing into three frequency bands as described above is described. It is obvious that RF signals located in different frequency bands may be input to the input port of the signal distribution means.

In addition, it is obvious that the number of frequency bands and the number of input ports of the signal distribution means can be expanded or reduced.

One integrated RF signal output by the signal distribution means (100, 200, 300) is combined by the signal coupling means (400, 500, 600, 700) integrated wireless communication signal (F1 + F2 + F3 + F4 + F5 + F6 + F7 +) having broadband characteristics Output F8 + F9 + F10 + F11 + F12) / 6.

In addition, it further comprises a monitoring means 800 for monitoring whether one integrated wireless communication signal output by the signal coupling means (400, 500, 600, 700) is normally output.

FIG. 5 is a diagram illustrating a method of combining and distributing four different RF signals to four ports using a hybrid coupler in a corresponding frequency band as one embodiment of the signal distribution unit of FIG. 4 according to the present invention. to be.

In the present invention, in one hybrid coupler having two input ports, an RF signal is input to each of the two input ports. As shown in FIG. 5, two RF signals F1 and F2 are applied to the first input ports a1 and a2 of the first shear hybrid coupler 110 to distribute signal power to the first output ports b1 and b2. Outputs two (F1 + F2) / 2 integrated signals and applies two RF signals (F3, F4) to the first input ports (a3, a4) of the third shear hybrid coupler (130). By distributing power, two (F3 + F4) / 2 integrated signals are output to the first output ports b3 and b4.

Next, two (F1 + F2) / 2 and two (F3 + F4) / 2 output from the first shear hybrid coupler 110 are inputted so as not to overlap each other, so that the second trailing hybrid coupler 120 and The second output ports d1, d2, d3, d4 of the second and fourth rear hybrid couplers by applying and distributing to the second input ports c1, c2, c3, c4 of the fourth rear hybrid coupler 140. Outputs four integrated (F1 + F2 + F3 + F4) / 4 signal powers.

As shown in FIG. 5, one embodiment of the present invention describes different frequencies at the first input ports a1, a2, a3, and a4 of the two first and third shear hybrid couplers (referred to as shear hybrid couplers). RF signals F1, F2, F3, and F4 of the bands are respectively input.

In the first shear hybrid coupler 110, in which the RF signals F1 and F2 are input to the input ports a1 and a2, the RF signals F1 and F2 are distributed to the output ports b1 and b2 with the insertion loss 3db. A first RF signal of F2) / 2 is output.

Similarly, in the third shear hybrid coupler 130 in which the RF signals F3 and F4 are input to the input ports a3 and a4, the RF signals F3 and F4 are distributed with the insertion loss 3db to the output ports b3 and b4 (F3). A first RF signal of + F4) / 2 is output.

Next, the RF signals of (F1 + F2) / 2 of the output ports b1 and b2 of the first shear hybrid coupler 110 are input ports of the second and fourth rear hybrid couplers (referred to as rear hybrid couplers). c2, c3).

In addition, RF signals of (F3 + F4) / 2 of the output ports b3 and b4 of the third shear hybrid coupler 130 are input to the input ports c4 and c1 of the second and fourth rear hybrid couplers 120 and 140, respectively. Is authorized.

Therefore, the RF signal of (F3 + F4) / is input to the second input port c1 of the second rear hybrid coupler 120, and the RF signal of (F1 + F2) / 2 is input to c2, thereby distributing the signal power. A second RF signal of (F1 + F2 + F3 + F4) / 4 is output from the second output ports d1 and d2 of the hybrid coupler 120.

Similarly, the RF signal of (F1 + F2) / is input to the second input port c3 of the fourth rear hybrid coupler 140, and the RF signal of (F3 + F4) / 2 is input to c4, thereby distributing the signal power. The second RF signal of (F1 + F2 + F3 + F4) / 4 is output from the second output ports d3 and d4 of the hybrid coupler 140.

As a result, four RF signals F1, F2, F3, and F4, which are input to the first input ports a1, a2, a3, and a4, are distributed through signal distribution means configured by the front / rear hybrid couplers connected in multiple stages. The signal loss of (F1 + F2 + F3 + F4) / 4, in which the insertion loss is 6db and four RF signals are integrated, is output to the second output ports d1, d2, d3, and d4.

That is, as compared with the method of distributing four RF signals of FIG. 2 and outputting an integrated signal, 24 hybrid couplers are inserted (12db insertion loss) in the power distribution background in insertion loss, but only four hybrid couplers are inserted. Since the total insertion power loss is 6db, the power loss can be minimized and the circuit configuration can be simplified.

In addition, the signal distribution means is described in one frequency band, but will be said to be the same in the other two frequency bands. Therefore, the four RF signals (F5, F6, F7, F8) are input and distributed through the signal distribution means 200 in which the hybrid coupler is connected in multiple stages even in the HIGH band of 1710 to 2170 MHz, and the insertion loss has 6db. The signal power of (F5 + F6 + F7 + F8) / 4 with integrated RF signal is output.

Similarly, in the UHF band of 380 ~ 512MHz, four RF signals (F9, F10, F11, F12) are input and distributed through the signal distribution means 300 in which the hybrid coupler is connected in multiple stages, and the insertion loss has 6db and the four The signal power of (F9 + F10 + F11 + F12) / 4 with integrated RF signal is output.

Next, the signal coupling means (400, 500, 600, 700) will be described.

Signal combining means (400,500,600,700) are three integrated RF signals [(F1 + F2 + F3 + F4) / 4, (F5 + F6 +) output from the signal distribution means (100,200,300) for each frequency band in each frequency band. F7 + F8) / 4, (F9 + F10 + F11 + F12) / 4] combines the integrated RF signals outputted by each frequency band to transmit using only one transmission line without distinguishing each frequency band. do.

The signal combining means (400, 500, 600, 700) is implemented using a multiplexer to filter and output three integrated RF signals output by the signal distribution means (100, 200, 300) for each frequency band.

As shown in FIG. 4, in each of the three frequency bands divided into (F1 + F2 + F3 + F4) / 4 output from the first signal distribution means 100, and output from the second signal distribution means 200 ( F5 + F6 + F7 + F8) / 4, and three RF input signals of (F9 + F10 + F11 + F12) / 4 outputted from the third signal distribution means 300, the three input ports of the multiplexer 400 One integrated wireless communication signal with (F1 + F2 + F3 + F4 + F5 + F6 + F7 + F8 + F9 + F10 + F11 + F12) / 6 at one output port of the multiplexer 400, respectively. It can be output and transmitted using only one transmission line.

In an embodiment of the present invention, as shown in FIG. 4, the four integrated multiplexers 400, 500, 600, and 700 use the same integrated wireless communication signal (F1 + F2 + F3 + F4 + F5 + F6 + F7 + F8 +) in each multiplexer (400, 500, 600, 700). F9 + F10 + F11 + F12) / 6 were outputted to provide wireless service to radio shadow areas such as buildings, tunnels, subway stations, and railway tracks.

The public wireless network integrator 100 of the present invention is an integrated wireless communication signal (F1 + F2 + F3 + F4 + F5 + F6 + F7 + F8 + F9 + F10 + F11 +) output by the signal coupling means (400, 500, 600, 700). It further includes a monitoring means (800) for extracting the signal power from the transmission line for transmitting the F12) / 6 to measure whether the integrated wireless communication signal is normally output to determine the abnormal state of the equipment.

Figure 6 is a block diagram showing the configuration of a detector module that can measure the output signal in a public wireless network integrated apparatus according to the present invention.

As shown in FIG. 6, the monitoring means extracts signal power by connecting a 30db coupler 150 as an embodiment on a transmission line through which the integrated wireless communication signal is transmitted. The integrated wireless communication signal transmitted through the transmission line (F1 + F2 + F3 + F4 + F5 + F6 + F7 + F8 + F9 + F10 + F11 + F12) / 6 is as small as 30db using the 30db coupler 150. Even if power is extracted, the signal can be extracted while maintaining the waveform of the integrated wireless communication signal.

The signal extracted through the 30db coupler 150 is divided into two equal power signals through the two-way splitter 810 and input to the downconverter through the low noise amplifier 821. In the downconverter 820, The frequency of the signal output from the 2-way splitter 810 is down-converted to a frequency band corresponding to the crystal filter.

In this case, since the integrated wireless communication signal exhibits wideband characteristics, the phase locked loop 824 having a frequency tuning function cannot cover the wideband, so that the local oscillators 823a and 823b use two phase locked loops 824a and 824b. This is to supply the downmixer 822 for converting the signal output from the 2-way divider 810 to a frequency corresponding to the crystal filter 825.

In the present invention, by precisely adjusting the voltage of the local oscillator (823a, 823b) for supplying a local oscillation frequency for the synthesis of the frequency to the down mixer 822, phase fixed to serve to move and fix the local oscillation frequency to a desired frequency By using two loops 824a and 824b, frequency scans were performed in two divided regions to determine output characteristics according to broadband characteristics of the integrated wireless communication signal.

The integrated wireless communication signal down-converted by the downmixer 825 is filtered by a crystal filter 825 having bandpass characteristics.

The integrated wireless communication signal filtered by the crystal filter 825 is output through the power amplifier 826, detected by the detector 830, and then outputs the measured signal to the controller 840. The control unit 840 receives the measurement signal of the detector 830 to calculate and process the signal, and the LCD display unit 850 receives the signal output from the control unit 840 to externally determine the normal state of the integrated wireless communication signal power. Mark on.

Therefore, it is possible to monitor the quality of the entire wireless communication network having the broadband characteristics by the monitoring means for measuring and managing the signal extracted from the integrated wireless communication signal.

Next, a description will be given of a broadband antenna connected to the output line of the transmission line so that one integrated wireless communication signal output by the signal coupling means enables a wireless communication service.

7 is a view showing a front view (a), an upper side view (b) of the broadband antenna according to the present invention, and a shape (c) in which the radiating element is connected to the connector.

As shown in FIG. 7A, the radiating element 930 has a shape of an inverted triangle with respect to the reflecting plate 910, and the broadband antenna is provided at the center of the reflecting plate 910 and the reflecting plate 910 having a circular shape. And a connector 920 for feeding, and a radiating element 930 connected to the connector 920 to emit and receive a signal.

Conductive plates (931,932,933,934) including an inverted triangle structure is a general structure of the log antenna is changed to a flat plate shape. By forming the respective resonant frequencies according to the length and area from the reflecting plate 910 to the upper end of the conductive plate, a broadband characteristic with a bandwidth of 2120 MHz in the broadband range of 380 MHz to 2500 MHz was realized.

As shown in FIGS. 7B and 7C, the radiating element includes two conductive plates 930a and 930b having an L-shaped structure at the center of the connector 920. That is, the 1/4 wavelength radiation element 930 including the reflector 910 is combined in three directions (120 degree intervals: not shown) or in four directions (90 degree intervals) as shown in the above embodiment to implement broadband characteristics. It was. In addition, the radiating element 930 is preferably made of tin.

8 is a structural diagram showing a pattern of a radiating element of the broadband antenna according to the present invention and a structure connecting the radiating element to the connector.

As shown in FIG. 8 (a), protrusions 935 are formed on upper and side surfaces of the inverted triangular conductive plates 931 and 932 to reduce the length of the resonance point corresponding to the broadband frequency.

The conductive plate 930a is folded at an angle of 90 degrees with respect to the central solid line 936 of the conductive plate 930a to form an L-shaped structure as shown in FIG. 8 (b), and then connected to the center of the connector and the conductive plate connector. It was.

In the structure 937 for connecting the conductive plates 931 and 932 to the connector 920, the conductive plates 931 and 932 are forcibly inserted into the connector 920, so that non-linearity may occur at the contact surface. Non-linearity can be prevented by bringing the conductive plates 931 and 932 into contact with the connector 920. Although one-shaped conductive plate 930a has been described, it will be understood that the other conductive plate 930b is the same.

9 is a graph showing the standing wave ratio (VSWR) according to the present invention, Figures 10 and 11 are the radiation pattern H-Plane according to each frequency band, Figures 12 and 13 are the radiation pattern E-Plane according to each frequency band Is a graph.

As shown in FIG. 9, the broadband antenna of the present invention exhibits a standing wave ratio of 1: 1.9175 at a radiation frequency of 1163.4 MHz, but the input signal is not reflected at 1: 1.7358 at a radiation frequency of 380 MHz and 1: 1.2017 at a radiation frequency of 2.5 GHz. It has a radiation characteristic that is emitted as much as possible without.

In the frequency bands 380 MHz to 1450 MHz in FIG. 10 and 1600 MHz to 2500 MHz in FIG. 11, the maximum gain is 1300 MHz from the H-plane indicating the electric field component in the polarization direction shown in the maximum beam direction and magnetic field. We can see that the gain is high in the frequency band of 380MHz to 2500MHz at 6.08dbi and 6.29 at 1900MHz.

In addition, the intensity and isotropy of the emission from the E-Plane representing the electric field component in the maximum beam direction and the polarization direction in the electric field in the frequency band of 380 MHz to 1450 MHz in FIG. 12 and 1600 MHz to 2500 MHz in FIG. Shows a high gain in the frequency band of 380MHz to 2500MHz with 6.08dbi at 1300MHz and 6.80 at 1600MHz.

FIG. 14 is a diagram illustrating a frequency spectrum showing one integrated RF signal by inputting three RF signals into a HIGH band of 1710 to 2170 MHz as an embodiment of the signal distribution unit of FIG. 5.

As shown in FIG. 14, the center frequency of the HIGH band of 1710 to 2170 MHz is the front end of the hybrid coupler (110,130) of the RF signal (a) of the 1.85 GHz band, the RF signal (b) of the 1.87 GHz band and the RF signal (c) of the 2.14 GHz band. When input to the input port of)) one integrated RF signal (d) is output to the output port of the rear hybrid coupler (120,140).

Looking at the frequency spectrum of the integrated RF signal, it can be seen that the four output ports of the rear hybrid coupler (120,140) have one integrated RF signal having a frequency spectrum of 1.85 GHz band, 1.87 GHz band, and 2.14 GHz band from the low band. Can be.

It is apparent to those skilled in the art that the present invention is not limited to the above embodiments and can be practiced in various ways without departing from the technical spirit of the present invention. It is.

1 is a schematic diagram of a network configuration for installing a wireless communication network in a radio wave shading area such as a building, a tunnel, a subway station, a railway line, and the like independently of each conventional wireless network.

FIG. 2 is a block diagram illustrating a method of combining four different RF signals by using a hybrid coupler in a conventional frequency band and distributing the signals to four ports.

3 is a schematic diagram of a network configuration for laying up a wireless network such as a building, a tunnel, a subway station, a railroad line, and the like using a public wireless network integrator according to the present invention.

4 is a block diagram showing a method of outputting one integrated wireless communication signal by integrating multiple RF signals for each frequency band by using a public wireless network integrated device according to the present invention.

FIG. 5 is a diagram illustrating a method of combining and distributing four different RF signals to four ports by using a hybrid coupler in a corresponding frequency band as one embodiment of the signal distribution means according to the present invention.

Figure 6 is a block diagram showing the configuration of a detector module that can measure the output signal in a public wireless network integrated apparatus according to the present invention.

7 is a front view (a) and a top view (b) of a broadband antenna according to the present invention.

9 is a graph showing the standing wave ratio (VSWR) according to the present invention, Figures 10 and 11 are the radiation pattern H-Plane according to each frequency band, Figures 12 and 13 are the radiation pattern E-Plane according to each frequency band Is a graph.

FIG. 14 is a diagram illustrating a frequency spectrum showing one integrated RF signal by inputting three RF signals into a high band of 1710 to 2170 MHz to the signal distribution unit of FIG. 5.

<Explanation of symbols for the main parts of the drawings>

100,200,300: Frequency combining / distributing means 110: First shear hybrid coupler

120: second stage hybrid coupler 130: third stage hybrid coupler

140: fourth rear hybrid coupler a1, a2, a3, a4: first input port

b1, b2, b3, b4: first output port c1, c2, c3, c4: second input port

d1, d2, d3, d4: 2nd output port 150: 30 db coupler

400, 500, 600: Multiplexer 800: Detector module

810: 2-way distributor 820: Down-converter

821: low noise amplifier 822: downmixer

823a, 823b: Local oscillator 824: Phase locked loop

825: Crystal filter 825: Power amplifier

830: detector 840: control unit

850: LCD display 900: Wideband antenna

910: reflector board 920 connector

930: radiator 931,932,933,934: conductive plate

1000: Wireless Network Integrator

Claims (13)

At least one signal distribution means for distributing and commonly sharing at least two RF signals inputted, and combining the integrated RF signal output by the signal distribution means with the integrated RF signal output by the other signal distribution means. Signal combination means for combining the integrated RF signal output by each signal distribution means for transmitting in a single transmission line, The signal distributing means may include a front end hybrid coupler configured to output independent first RF signals to N input ports and output first RF signals in which N / 2 RF signals are integrated at N output ports; A rear hybrid coupler which outputs a second RF signal in which N RF signals are integrated at N output ports through inputs to N input ports so that the first RF signals output from the N output ports of the front hybrid coupler do not overlap each other. Public wireless network integrated device, characterized in that consisting of. The method of claim 1, The apparatus for integrating a public wireless network may further include a broadband antenna connected to an output line of a transmission line so that one integrated wireless communication signal output by the signal coupling unit may perform a wireless communication service. Device. The method of claim 2, wherein the broadband antenna Reflector having a circular shape, It is provided in the center of the reflecting plate for the connector, and And a radiating element connected to the connector to emit and receive a signal. The method of claim 3, wherein the radiating element 2. A public wireless network integrator having a form of an inverted triangle and having two L-shaped conductive plates connected to each other at right angles to the connector using lead wires. The method of claim 4, wherein the conductive plate Public radio network integrator, characterized in that the projecting surface is formed on the upper side and the side. delete The method of claim 1, N is 4, the public wireless network integrator. The method of claim 1, And said signal coupling means is a multiplexer for combining the integrated RF signals output by each signal distribution means and outputting them as integrated wireless communication signals. The method of claim 1, And a monitoring means for monitoring whether one integrated wireless communication signal outputted by the signal combining means is normally output. The method of claim 9, wherein the monitoring means A coupler for extracting signal power from an integrated wireless communication signal power path connected to a transmission line through which the one integrated wireless communication signal is transmitted; A two-way splitter for distributing the power signal extracted by the coupler into two identical power signals, A down converter converting the frequency of the signal output from the 2-way splitter into a frequency band corresponding to a band pass filter; A detector for measuring an output signal of the down converter unit, A control unit which receives a measurement signal of the detector and calculates and processes the measured signal; And an LCD display for receiving the signal output from the controller to display the normal state of the signal power to the outside. The method of claim 9, wherein the monitoring means The integrated wireless communication signal exhibits broadband characteristics, so that the local oscillation frequency of the local oscillator is divided into two frequency bands and sensed using two phase-locked loops that move and fix the local oscillation frequency. . The method of claim 10, wherein the down converter unit A low noise amplifier for amplifying the integrated wireless communication signal while suppressing amplification of the integrated wireless communication signal output from the 2-way splitter to noise; A downmixer for converting an integrated wireless communication signal, which is an output signal of the low noise amplifier, into a frequency corresponding to a bandpass filter, A local oscillator for supplying a local oscillation frequency for frequency synthesis to the downmixer, A phase fixed loop for moving and fixing the local oscillation frequency of the local oscillator to a desired frequency; A bandpass filter for filtering and selecting only a desired frequency band from an output signal of the downmixer; And a power amplifier for amplifying the power of the integrated wireless communication signal passing through the band pass filter. The method of claim 10 or 12, Band pass filter is a public wireless network integrated device, characterized in that the crystal filter.

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