KR20050027961A - A personal repeater using rf coupling - Google Patents

Abstract

A personal repeater using RF coupling is provided to facilitate installation by suppressing an oscillation phenomenon to minimize an electric field reach range of a service antenna. The first transmission/reception antenna transmits/receives a signal wirelessly to/from a base station. The second transmission/reception antenna wirelessly connected with a mobile terminal through RF coupling and transmits/receives a signal to/from the mobile terminal(1). A signal processing/amplifying unit(21) receives a signal from the base station through the first transmission/reception antenna, amplifies it, and then, transmits the amplified signal to the mobile terminal(1) through the second transmission/reception antenna. Also, the signal processing/amplifying unit(21) receives a signal from the mobile terminal(1) through the second transmission/reception antenna, amplifies it, and then, transmits the amplified signal to the base station through the first transmission/reception antenna.

Description

Personal repeater using RF coupling {A PERSONAL REPEATER USING RF COUPLING}

The present invention relates to a repeater for resolving a shadow area by relaying a base station and a terminal in a mobile communication network. In particular, by using a service antenna of a repeater as a loop antenna to secure isolation between antennas, anyone can easily install and A personal relay with RF coupling that can be used.

In recent years, in the mobile communication network that is rapidly increasing, service areas are defined in units of cells around a base station. Due to the nature of the frequencies used in mobile communications, there is a high possibility that there are shadowed areas that are difficult to communicate in buildings, tunnels, underground spaces, mountainous areas or island areas.

It is necessary to install as many base stations as possible to solve such shaded areas, but there is a problem in that it is expensive to install a base station and the interference between neighboring base stations is severe. Therefore, a repeater is installed instead of a base station. It is resolved.

However, in the case of a personal shadow area such as a small service coverage and a small number of users, such as a home, the repeater price and installation cost is excessive for the service provider, and thus there is a problem in that the repeater cannot be installed in each individual shadow area. .

In addition, since the conventional repeater requires a gain of at least 50 dB to 55 dB or more even in the case of a small output repeater, there is an isolation problem between the service antenna and the donor antenna during installation. If the isolation is not secured, oscillation occurs. Due to this oscillation problem, restrictions on installation conditions occur when the repeater is installed.

1 is a schematic diagram for explaining a conventional repeater.

As shown in FIG. 1, the conventional repeater 20 includes a signal processor / amplifier 21, a donor antenna 30, and a service antenna 32.

Referring to FIG. 1, the donor antenna 30 is a transmission / reception antenna toward the base station 10, receives a signal radiated from the base station 10, transmits the signal to the signal processing / amplification unit 21, and the signal processing / amplification unit ( A signal output from 21 is received and transmitted to the base station 10. The service antenna 32 is a transmit / receive antenna directed to a subscriber, receives a signal radiated from the mobile communication terminal 1, transmits the signal to the signal processing / amplifying unit 21, and transmits the signal output from the signal processing / amplifying unit 21. Receive and transmit to the mobile communication terminal (1). The signal processor / amplifier 21 includes a first duplexer 22, a forward amplifier 24, a reverse amplifier 26, and a second duplexer 28.

The repeater 20 transmits a signal applied from the base station 10 to the mobile communication terminal 1 side, and simultaneously transmits a signal received from the mobile communication terminal 1 to the base station 10 side. The signal transmitted to the mobile communication terminal 1 through the service antenna 32 of the repeater 20 is echoed back and the echo signal received by the donor antenna 30 is present, and the opposite signal is also present.

The first duplexer 22 receives the signal received through the donor antenna 30 and outputs it to the forward amplifier 24, and receives the signal output from the reverse amplifier 26 and receives the signal from the base station 30 through the donor antenna 30. 10). In this case, the signal received through the donor antenna 30 may include an echo signal applied from the service antenna 32 together with the base station signal output from the base station 10. The forward amplifier 24 amplifies the signal output from the first duplexer 22 and outputs it to the service antenna 32.

The second duplexer 28 receives the signal amplified by the forward amplifier 24 and transmits it to the subscriber side through the service antenna 32, and receives the signal received through the service antenna 32 and the reverse amplifier 26. Will output The reverse amplifier 26 amplifies the signal output from the second duplexer 28 and outputs it to the donor antenna 30.

Here, the repeater 20 generally employs an isotropic or omnidirectional antenna having a wide radiation pattern so as to support the terminal 1 in the unit area widely.

FIG. 2 illustrates a dipole antenna widely used as a service antenna in a conventional repeater.

As shown in FIG. 2, the dipole antenna 40 resonates at a frequency with twice the wavelength of the rod length. That is, in order to transmit and receive a signal having a wavelength of λ, the pole length of the dipole antenna 40 should be λ / 2. For example, in the case where the wavelength in air at 1 GHz is assumed to be 30 cm, the length of the dipole antenna 40 is 15 cm to give an antenna for 1 GHz.

3 is a diagram illustrating a monopole antenna widely used as a service antenna in a conventional repeater.

As shown in FIG. 3, the monopole antenna 50 has a length of lambda / 4, which is about half smaller than the dipole antenna 40, since the ground has an image effect. For example, in the case where the wavelength in air of 1 GHz is assumed to be 30 cm, when the length of the monopole antenna 50 is 7.5 cm, the antenna for 1 GHz is obtained.

4 is a diagram illustrating signal transmission between a repeater and a mobile communication terminal when using a monopole antenna in a conventional repeater. In FIG. 4, the same code | symbol is attached | subjected about the same part as the repeater of FIG. 1, and the description about the same code | symbol is abbreviate | omitted.

When the service antenna is used as the monopole antenna 50 in the repeater 20, it has a radiation pattern as shown in FIG. 4, and at least 40 dB of space loss occurs between the repeater 20 and the terminal 1. The signal strength of the terminal 1 is determined according to the space loss between the terminal 1 antenna and the service antenna 32. Therefore, the gain of the repeater 20 changes according to the output value and the intensity of the input signal, and the higher the gain of the input signal or the higher the output setting value, the higher the gain amplification.

However, when the high-gain amplification is performed in the repeater 20, there is a problem in that oscillation occurs if the isolation between the donor antenna 30 and the service antenna 32 is not secured. Here, the oscillation phenomenon means that since the antenna does not emit a signal forward only due to its radiation characteristics, a part of the signal radiated from the output antenna flows back into the input antenna. The system is in a state of infinite circulation that amplifies and outputs a magnetic signal again and continuously increases to the output limit of the system.

In order to prevent this oscillation state, the intensity of the signal flowing from the output stage to the input stage should be kept at least 15 dB lower than the original input signal.

In particular, in the case of high gain systems, the output signal is increased in proportion to the gain, so the intensity of the signal flowing into the input side is increased. Therefore, in order to reduce this, it is necessary to use a building that can increase the separation distance between antennas or reduce the strength of the signal. Therefore, the antenna should be installed so that the isolation between the antennas is 15dB higher than the system gain.

However, in the worst case, if sufficient isolation cannot be secured by adjusting the installation conditions, the system should be installed by reducing the gain of the repeater to a state where oscillation does not occur (output reduction). As such, the conventional repeater installation involves a complicated process such as securing the degree of isolation, such that the expert was forced to install the instrument using a measuring instrument.

Therefore, the conventional repeater requires a professional manpower for installation, must choose a place for installation well, there is a problem that the installation process is difficult and expensive as a whole takes a lot of installation work.

The present invention is to solve the above problems,

An object of the present invention is to reduce the gain of the repeater by minimizing the space loss between the service antenna of the repeater and the mobile communication terminal, and the RF coupling easy to install by suppressing the oscillation phenomenon by minimizing the field delivery range of the service antenna It is to provide a personal type repeater using.

It is another object of the present invention to provide a personal relay using RF coupling having various shapes and connection methods mechanically in implementing such a personal relay.

In order to achieve the above object, a personal relay using RF coupling according to an aspect of the present invention, the first transceiver antenna for transmitting and receiving signals wirelessly with the base station; A second transmission / reception antenna mechanically connected to the mobile communication terminal in a wired form, and wirelessly connected via an RF coupling to transmit and receive a signal; And receiving and amplifying a signal transmitted from a base station through the first transmit / receive antenna, output the signal to the mobile communication terminal through the second transmit / receive antenna, and input a signal transmitted from the mobile communication terminal through the second transmit / receive antenna. It receives and amplifies and outputs the signal processing / amplifying unit for outputting to the base station through the first transmission and reception antenna.

In this case, the second transmit / receive antenna is a loop antenna, and the signal processor / amplifier receives a signal received through the first transmit / receive antenna and outputs the signal to the mobile communication terminal through the second transmit / receive antenna. A first duplexer that receives a signal received from the mobile communication terminal through the second transmit / receive antenna and outputs the signal to the base station through the first transmit / receive antenna; A forward amplifier for amplifying a signal received from the first duplexer; Receiving a signal amplified by the forward amplifying unit and outputting the amplified signal to the mobile communication terminal through the second transmission / reception antenna, and receiving a signal transmitted from the mobile communication terminal and outputting the signal to the base station through the first transmission / reception antenna; 2 duplexer; And a reverse amplifier for amplifying the signal received from the second duplexer.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a diagram illustrating signal transmission of a personal relay using RF coupling according to the present invention, and FIG. 6 is a diagram illustrating a loop antenna used in a personal relay using RF coupling according to the present invention.

As shown in FIG. 5, the personal relay 200 using the RF coupling of the present invention includes a signal processing / amplifying unit 21, a donor antenna 30, and a loop antenna 100 as a service antenna.

The personal relay 200 of the present invention is a low output radio signal transmitted from the radio base station (10 in FIG. 1) and the mobile communication terminal 1 for smooth communication between the base station 10 and the user mobile communication terminal (1). It receives and selects the frequency of the desired band and amplifies and relays the RF signal to the mobile communication terminal 1 and the base station 10.

The signal processor / amplifier 21 includes a first duplexer 22, a forward amplifier 24, a reverse amplifier 26, and a second duplexer 28.

The first duplexer 22 receives the signal received through the donor antenna 30 and outputs it to the forward amplifier 24, and receives the signal output from the reverse amplifier 26 to the base station through the donor antenna 30. Send by The forward amplifier 24 amplifies the signal input from the first duplexer 22 and outputs it to the loop antenna 100 side.

The second duplexer 28 receives the signal amplified by the forward amplifier 24 and transmits it to the subscriber side through the loop antenna 100, and receives the signal received through the loop antenna 100 and receives the reverse amplifier 26. Will output The reverse amplifier 26 amplifies the signal input from the second duplexer 28 and outputs it to the donor antenna 30.

The donor antenna 30 is a transmitting / receiving antenna for the base station 10, receives a signal radiated from the base station 10, transmits the signal to the signal processing / amplifying unit 21, and receives a signal input from the signal processing / amplifying unit 21. Receives and transmits to the base station 10.

The loop antenna 100 is a transmitting / receiving antenna for the subscriber station 1 and is connected to the signal processing / amplifying unit 21 by a feeder line. In addition, the loop antenna 100 is connected to the antenna of the mobile communication terminal 1 by an RF coupling method. That is, since the loop antenna 100 is ring-shaped, the antennas of the mobile communication terminal 1 are connected to each other by connecting the antennas of the loop antenna 100 and the mobile communication terminal 1 by RF coupling. Is coupled wirelessly.

Here, the loop antenna 100 may be connected to the antenna of the mobile communication terminal 1 in various ways as described below. However, the loop antenna 100 uses a general method and is not limited to one specific method.

The loop antenna 100 coupled to the antenna of the mobile communication terminal 1 and RF-coupled as described above receives the signal radiated from the mobile communication terminal 1 and transmits the signal to the signal processing / amplifying unit 21 and performs signal processing. The signal output from the / amplifier 21 is received and transmitted to the mobile communication terminal 1.

As shown in FIG. 6, the loop antenna 100 is made of a wire wound several times in a circle, has a property of dense power inside the loop, and has a very large deterministic orientation. The coil of wire is placed in a molded cover of aluminum alloy to make it streamlined, while eliminating the mutual interference generated.

7 is a first example of a loop antenna used in a personal repeater using the RF coupling of the present invention.

As shown in FIG. 7, the loop antenna 100 used in the present invention has rubber molds 102 and 106 having the same shape in both up and down directions of the PCB 104 having a hole 104a formed at the center for inserting the antenna of the terminal. Can be implemented in a combined state.

FIG. 8 is a second example of a loop antenna used in a repeater using the RF coupling of the present invention, and FIGS. 9 and 10 are examples of coupling between a loop antenna and a terminal of a second example used in the present invention, and FIG. It is another coupling example of the loop antenna of a 2nd example used for this invention, and a terminal.

Since the loop antenna 100 of the first example is coupled by inserting the antenna of the terminal 1 into the loop antenna, the inner diameter of the loop antenna should have an appropriate size according to the size of the terminal antenna. For example, when the inner diameter of the loop antenna 100 is made much larger than the inner diameter of the terminal antenna, the distance from the center of the terminal antenna is increased so that the coupling loss between antennas is increased, and rubber such as rubber inside the loop antenna is maintained to maintain physical coupling. Pads need to be added. However, in the case of a small folder terminal, the folder may not be completely opened due to the loop antenna with the addition.

In order to improve this problem, another loop antenna 100 'used in the present invention is formed with a loop pattern on a PCB plate without holes as shown in FIG. 8, as shown in FIGS. 9 and 10. The loop antenna 100 'is positioned adjacent to the antenna of the terminal 1 to be coupled. In this case, in order to physically couple the loop antenna 100 'of the second example to the antenna 1a of the terminal, the loop antenna 100' is implemented as a tong type 108 as shown in FIG. It is also possible to combine 1a) by pinching. In this case, when implemented in the form of tongs, a member such as a rubber mold or plastic can be removed, and thus it can be combined without interference.

As such, the present invention can be efficiently used in a limited place such as a personal shadow area because the loop antenna 100 of the repeater and the antenna of the mobile communication terminal 1 must be mechanically adjacent to each other.

In addition, since the signal transmission between the loop antenna 100 and the mobile communication terminal 1 connected as described above is performed wirelessly through RF coupling, the space loss between the repeater 200 and the mobile communication terminal 1 is -10 dB. Is reduced below. Therefore, in the present invention, since the repeater 200 having a low gain can be used, the repeater can be miniaturized, and the gain of the repeater can be reduced, thereby reducing the required isolation.

In addition, the loop antenna 100 has a distance or attachment between the two antennas 30 and 100 because no signal flows from the donor antenna 30 or no signal is transmitted to the donor antenna 30 because power is concentrated inside the loop. It is not affected by the form. Therefore, anyone can easily install the repeater 200, it is possible to improve the call quality.

12 is a view illustrating a signal transmission between a repeater and a mobile communication terminal using a loop antenna according to the present invention. In comparison with the accompanying FIG. 5, the repeater of FIG. 12 is duplicated by further adding a forward path including an amplifier 24 ′ and a delay unit 25, and the mobile communication terminal 1 is connected to the wireless headset 300. have. In this case, in the case where the forward path is dualized and passed through the delay element 25 such as the SAW, the repeater performance can be improved by minimizing the variation of the base station signal by maximizing the performance of the rake receiver.

When using the repeater 200 of the present invention, regardless of the isolation between the service antenna and the donor antenna using the loop antenna 100 as a service antenna of the repeater 200 so that anyone can easily install, and the loop antenna 100 Insert the antenna of the mobile communication terminal 1 into the loop and connect it. In this case, since the loop antenna 100 of the repeater 200 and the antenna of the mobile communication terminal 1 are physically connected to each other, the user should use the mobile communication terminal 1 in a limited place near the repeater 200 like a landline. do.

However, in the case of using the mobile communication terminal 1 having a wireless hands-free function as shown in FIG. 12, the wireless hands-free 300 and the mobile communication terminal 1 have a Bluetooth, ZigBee, or the like. Infrared (IrDA) is connected so that users can talk freely while at home or in the office.

That is, the mobile communication terminal 1 transmits a signal received from the base station 10 through the repeater 200 to the hands-free 300 wirelessly using a Bluetooth method, a Zigbee method, or an infrared method (IrDA), and hands-free ( 300 receives the signal output by using the Bluetooth method, the Zigbee method, or the infrared method wirelessly and transmits to the base station through the repeater 200.

The wireless hands-free 300 wirelessly receives a signal output from the mobile communication terminal 1 using a Bluetooth method, a Zigbee method or an infrared method, and outputs it to a user through a speaker, and transmits the voice signal transmitted from the user through a microphone. By wireless transmission using a Bluetooth method, a Zigbee method, or an infrared method, it is output to the mobile communication terminal 1.

As described above, according to the present invention, since the wireless connection is performed using the Bluetooth method, the Zigbee method, or the infrared method without the line connection between the hands-free 300 and the mobile communication terminal 1, the user can talk freely while moving.

FIG. 13 is a first embodiment of a mechanical form of a personal relay of the present invention, in which a donor antenna and a service antenna are connected to a signal processing / amplification part by a feed line.

Referring to FIG. 13, the signal processing / amplification unit is implemented in one main body 72, the donor antenna is implemented in such a manner that the monopole antenna 71 stands vertically on the support plate, and the service antenna is the center hole 73a. It is implemented with the loop antenna 73 of this rectangular tube (hexahedral) type.

Also, as shown in FIG. 14, the service antenna is attached to the inside of the hole 73a of the square-shaped loop antenna to facilitate mounting, and is tightly coupled to the antenna of the terminal and configured to be easily removable. It may be. At this time, it is preferable that the member 74 inside the hole uses another material such as soft rubber or plastic.

As shown in FIG. 15, the donor antenna may cover the top of the antenna with a cap 75 larger than the hole 73a of the service antenna to prevent the service antenna from being inserted into the donor antenna. That is, when the service antenna is inserted into the donor antenna in the shape as shown in FIG. 13, the parts may be damaged by the oscillation. Therefore, for safety, a cap 75 of plastic material or rubber material is installed at the end of the donor antenna for donor service. Configure it so that it cannot be inserted into the antenna.

In addition, although not shown in the drawing, another external antenna may be connected by adding an RF switch to a connection portion of a donor antenna, and a donor antenna connection portion may be implemented by using a screw-coupled connector to be replaced by another high gain antenna.

FIG. 16 is a second embodiment of a mechanical form of a personal relay of the present invention, in which a service antenna is integrally formed in a main body of a signal processing / amplifying unit, and a donor antenna is connected to a feed line.

Referring to FIG. 16, in the second embodiment of the present invention, the signal processing / amplifying unit is implemented in one main body 82, and the service antenna includes a hole for inserting the antenna of the mobile communication terminal into a part of the main body 82. It consists of the projection 84 in which 84a) was formed, and is integral with the main body 82. The donor antenna is implemented in a form in which the monopole antenna 71 stands vertically on the support plate and is connected to the main body 82 by a feed line.

In this configuration of the second embodiment, since the service antenna is integrally implemented with the main body 82, the mobile communication terminal 1 can be mounted on the main body 82, which is convenient. In this case, a magnet or the like may be installed in the main body 82, and an iron plate may be attached to the terminal 1 to fix the terminal 1 to the main body by the force of the magnet.

17 and 18 show a third embodiment of the mechanical type of the personal relay of the present invention, in which a donor antenna and a service antenna are integrally formed in the main body of the signal processing / amplification unit.

Referring to FIG. 17, the personal repeater according to the present invention is a service including a protrusion 94 having a hole 94a for inserting an antenna of a mobile communication terminal on an upper side of a main body 93 on which a signal processing / amplification unit is mounted. The antenna is provided, and the pole 91 type donor antenna is integrally provided with the main body 93 so that one end may become the universal joint shaft 92, and can rotate up, down, left, and right on the side surface of the main body 93.

Referring to FIG. 18, the service antenna is formed in a loop pattern on the PCB and protrudes at a position corresponding to the antenna of the terminal. When the protruding loop antenna 96 mounts the terminal 1 on the main body 93, the protruding loop antenna 96 may compensate for the difference in coupling loss generated when the battery height of the terminal is different. That is, the height of the protruding loop antenna 96 is automatically adjusted according to the antenna height of the terminal. Since the height of the loop antenna 96 is movable in the vertical direction, the height is automatically adjusted when the terminal is fixed by the magnet and the iron piece.

As described above, in the third embodiment, the service antenna and the donor antenna are integrally implemented in the main body 93, thereby making installation and mounting more convenient. In particular, the connection portion of the donor antenna can be adjusted in the direction of the base station by configuring the universal joint to enable vertical and horizontal angle adjustment. At this time, when the direction adjustment in the vertical direction of the antenna is required, it may be easy to adjust in the direction of the base station using a helical type antenna (not shown) as a donor antenna.

19 is a fourth embodiment of the mechanical form of the personal repeater of the present invention, in which a donor antenna and a service antenna are integrally formed in a main body of a signal processing / amplifying part, and a donor antenna is formed on a side or a rear surface of a main body of a PCB type. It is implemented as a patch antenna of.

Referring to FIG. 19, the personal repeater according to the present invention is a service having a protrusion 94 in which a hole 94a for inserting an antenna of a mobile communication terminal is formed above the main body 93 on which the signal processing / amplification unit is mounted. An antenna is provided, and a donor antenna made of a PCB-type patch antenna 95 is provided on the side or the rear of the main body 93.

Referring to FIG. 20, the service antenna is formed in a loop pattern on the PCB and protrudes at a position corresponding to the antenna of the terminal. As shown in FIG. 18, the protruding loop antenna 96 is automatically adjusted in height according to the antenna height of the terminal. That is, since the height of the loop antenna 96 is movable in the vertical direction, the height is automatically adjusted when the terminal is fixed by the magnet and the iron piece.

As described above, in the fourth embodiment, the service antenna and the donor antenna are integrally implemented in the main body 93, thereby making installation and mounting more convenient. In particular, since the donor antenna is made of a PCB-type patch antenna, the manufacturing cost of the repeater can be reduced, more convenient to handle, and the appearance is beautiful.

FIG. 21 is a fifth embodiment of the mechanical type of the personal relay of the present invention, in which a donor antenna and a service antenna are integrally formed in the main body 110 of the signal processing / amplification unit, and the donor antenna of the main body 110 of the main relay 110 of the main relay 110 of the main relay 110 of FIG. It is implemented as a patch antenna 112 of the PCB type on the side or the back, and the service antenna is implemented as a PCB pattern 114 of various types on the main body 110 does not protrude. This fifth embodiment is suitable for the case of a PCB pattern (microstrip) type in which the antenna of the mobile communication terminal does not protrude.

Referring to FIG. 21, a repeater according to the present invention is provided with a donor antenna made of a PCB type patch antenna 112 in a main body 110 in which signal processing / amplification units are mounted, and an upper part of the main body 110 includes a PCB. The service antenna formed by the loop pattern 114 is installed in the. In this case, the pattern shape of the service antenna may have various shapes such as a circular pattern as shown in FIG. 22 or a square pattern as shown in FIG. 23.

As described above, in the fifth embodiment, the service antenna and the donor antenna are integral to the main body, but do not protrude to the outside at all, so that the appearance is beautiful and various designs are possible, and installation and mounting are more convenient. In particular, the fifth embodiment is suitable for the case of a PCB pattern type in which the antenna of the mobile communication terminal does not protrude, and when the mobile communication terminal is placed on the upper portion of the main body 110, the service antenna of the PCB pattern type and the antenna of the mobile communication terminal are provided. Is wirelessly coupled.

Although not shown in the drawings, in the case of the first to fifth embodiments, when the mobile communication terminal is a type capable of wirelessly connecting handsfree with Bluetooth, Zigbee, or infrared light, the repeater and the mobile communication terminal are fixed in one place, and the user Can talk freely through handsfree.

In addition, the personal repeater according to the present invention is small in size and can be carried together in a combined state with the mobile communication terminal, thus allowing a user to talk freely without a handsfree. For this purpose, it is preferable to add a magnet for attaching the mobile communication terminal to the main body. The terminal and the antenna are fixed using a magnet and a metal iron plate attached to the rear of the terminal.

FIG. 24 is a sixth embodiment of the mechanical form of the personal repeater of the present invention, in which the repeater according to the present invention is implemented as a supplemental pack or case form 120 capable of accommodating the mobile communication terminal 1. . That is, the repeater of the sixth embodiment is an auxiliary pack or holder form 120 in which the signal processing / amplifying unit, the donor antenna, and the service antenna are integrally formed, and the overall shape of the repeater can accommodate the mobile communication terminal. At this time, both the donor antenna and the service antenna are implemented in the form of a micro strip on the PCB, and the power of the repeater may be used by using the power of the mobile communication terminal 1 or by embedding a separate battery.

Thus, the configuration of the sixth embodiment has the advantage that the size of the repeater can be extremely miniaturized, so that it can be easily carried and used while moving.

25 to 30 is a seventh embodiment of the mechanical form of the personal repeater of the present invention, the repeater according to the present invention is implemented in a cap form 130 that can be inserted into the mobile communication terminal. At this time, there are a band type, a rubber cap type, a light chip type locking type, a sliding cap type, and a tong type according to a method of combining a cap type repeater with a mobile communication device. That is, in order to improve the magnet attachment strength, the repeater and the terminal are fixed by using a cap-shaped fixture on the upper part of the loop antenna.

25 is a method of fixing with the terminal 1 by using a cap-type repeater 130 of the material having a shrinkage property, such as rubber or rubber band according to the present invention. Mounting and detachment of the terminal 1 is convenient, but the accuracy of the terminal 1 and the repeater 130 is weak.

Figure 26 is a repeater supplementing the fixed state of the repeater using a rubber cap according to the present invention. That is, FIG. 26 is a method of fixing the terminal 1 and the repeater by pressing the rubber cap 140 of the injection form to the antenna part of the terminal 1.

FIG. 27 is a method of crimping and fixing the terminal 1 and the repeater 150 using the repeater 150 having a light chip-shaped clamp according to the present invention. Although the manufacture of the repeater 150 is convenient, when the fastener uses hard (hard) plastic, cracking may occur when the impact of dropping the repeater 150 occurs.

28 is a method for strengthening the strength of the crimp according to the present invention, the antenna fixing portion in the form of a sliding cap made of rubber, silicone or plastic material, the compression degree becomes stronger as the cap is moved by varying the size of the inlet and the end portion Is a repeater 160.

Figure 29 is fixed to the terminal and repeater 170 by installing the antenna fixing tongs 172 in a part of the repeater 170 in accordance with the present invention. Silicon or rubber attachments may be installed on the adhesive surface of the tongs and the upper surface of the poop antenna to prevent slippage and enhance the degree of fixation.

30 is a method for reducing the size of the cap-type repeater 180 according to the present invention is a method of sharing the battery of the terminal 1 with the repeater 180. That is, power is supplied to the repeater 180 by using a cable 182 connected to the charging port of the terminal 1.

FIG. 31 is an example of a Bluetooth-embedded repeater according to the present invention. In the case of the mobile phone 1 without a Bluetooth module, the Bluetooth module 192 is added to the repeater 190. ) Is available.

The repeater 190 of the present invention is provided with a Bluetooth module 192 separately from the repeater circuit 21 as described above, the Bluetooth module 192 is different from the LED 193 and other Bluetooth for indicating the operation state An internal antenna 194 for communicating with the module and an ear / mic jack 195 for inputting and outputting voice signals are connected. In order to use the repeater 190 according to the present invention, the antenna of the mobile communication terminal 1 is connected to the loop antenna 100 of the repeater, and the ear / microphone jack (EAR / MIC) of the mobile communication terminal 1 is The connection cable 196 is connected to the ear / microphone jack 195 of the Bluetooth module.

Accordingly, the wireless handsfree 300 having the Bluetooth module is wirelessly connected to the Bluetooth module 192 in the repeater 190, and the mobile communication terminal 1 is wired with the ear / microphone terminal 195 of the Bluetooth module. Is connected, the mobile communication terminal 1 and the repeater 190 is connected via a loop antenna 100, even in the case of the mobile communication terminal 1 without a Bluetooth function hands-free 300 through the Bluetooth module 192 of the repeater Can be used.

32 is an example of a repeater with a plurality of loop antennas according to the present invention, and after implementing the protruding loop antenna 94 and the PCB patterned loop antenna 114 in the repeater, one through the RF switch 198. It can be selected and used. That is, as the type of mobile phone has been diversified recently, the antenna of the mobile phone also has various shapes such as a protruding type or a built-in type. To use it. The antenna may be selected by manipulating the RF switch 198 by hand, but may be mechanically configured to automatically select the patterned antenna 114 when the protruding antenna 94 is pushed back. have.

The personal relay using the RF coupling according to the present invention can be modified and applied in various forms within the scope of the technical idea of the present invention, and is not limited to the above preferred embodiment. In addition, the embodiments and drawings are only for the purpose of describing the contents of the invention in detail, not intended to limit the scope of the technical idea of the invention, those of ordinary skill in the art to which the present invention described above belongs As various substitutions, modifications and changes are possible within the scope without departing from the spirit of the present invention is not limited to the embodiment and the accompanying drawings, of course.

For example, in the above preferred embodiment, the loop antenna 100 and the mobile communication terminal 1 are mechanically connected and fixed in a wired form, and are connected through RF coupling but are not limited thereto. The output of the second duplexer 28 of the repeater 20 may be directly connected to the antenna of the mobile communication terminal 1 mechanically and signally. In addition, the repeater according to the present invention may be built in the mobile communication terminal. Since this can be easily carried out or used by those skilled in the art, a detailed description thereof will be omitted.

As described above, the present invention can be easily installed and carried by an individual to solve a limited shadow area (personal shading area) unlike a conventional repeater commonly used by many by implementing the service antenna of the repeater as a loop antenna. It can provide a personal repeater.

According to the present invention, since the repeater output and the mobile communication terminal output are performed at the same time, it has a transmit diversity function of the mobile communication terminal. In addition, since the repeater receives the reverse signal using the loop antenna, a signal other than the mobile communication terminal in the loop antenna is not amplified without using a filter having excellent detection characteristics such as surface acoustic wave (SAW).

Therefore, not only the unit cost of the repeater can be reduced, but also the space quality between the repeater and the mobile communication terminal can be reduced and the call quality can be improved due to the repeater gain reduction.

1 is a schematic diagram for explaining a conventional repeater,

FIG. 2 illustrates a dipole antenna, which is a form of a conventional repeater service antenna; FIG.

3 is a diagram illustrating a monopole antenna, which is another type of conventional repeater service antenna;

4 is a view illustrating a signal transmission between a repeater and a mobile communication terminal when using a conventional repeater monopole antenna;

5 is a view illustrating a signal transmission of a personal relay using RF coupling according to the present invention;

6 is a conceptual diagram illustrating a loop antenna used for a personal repeater using the present invention RF coupling;

7 is a first example of a loop antenna used in a repeater using the present invention RF coupling,

8 is a second example of a loop antenna used in a repeater using the present invention RF coupling;

9 and 10 are a combination example of a loop antenna and a terminal of a second example used in the present invention,

11 is another coupling example of a loop antenna and a terminal of a second example used in the present invention;

12 is another use state diagram of a personal relay in accordance with the present invention;

13 is a first embodiment of the mechanical configuration of a repeater according to the present invention;

14 is an example of adding a pad to the loop antenna shown in FIG.

15 is an example in which the cap is added to the donor antenna shown in FIG.

16 is a second embodiment of the mechanical configuration of a repeater according to the present invention;

17 and 18 show a third embodiment of the mechanical configuration of the repeater according to the present invention;

19 and 20 is a fourth embodiment of the mechanical configuration of the repeater according to the present invention,

21 to 23 is a fifth embodiment of the mechanical configuration of a repeater according to the present invention;

24 is a sixth embodiment of the mechanical configuration of a repeater according to the present invention;

25 to 30 is a seventh embodiment of the mechanical configuration of the repeater according to the present invention,

31 is an example of a repeater with Bluetooth in accordance with the present invention;

32 is an example of a repeater incorporating a plurality of loop antennas in accordance with the present invention.

* Description of the symbols for the main parts of the drawings *

1: mobile communication terminal 10: base station

20,200: repeater 21: signal processing / amplifier

22: first duplexer 24: forward amplifier

26: reverse amplifier 28: second duplexer

30: donor antenna 32,100: service antenna

300: hands free

Claims (18)

In the repeater for relaying the wireless communication service signal between the base station and a plurality of mobile subscriber stations located in the shadow area, A first transmit / receive antenna for transmitting and receiving a signal wirelessly with the base station; A second transmit / receive antenna wirelessly connected to the mobile communication terminal through RF coupling to transmit and receive a signal; And Receives and amplifies a signal received from a base station through the first transmission and reception antenna and transmits the signal to the mobile communication terminal through the second transmission and reception antenna, and receives a signal received from the mobile communication terminal through the second transmission and reception antenna. Personal relay using RF coupling comprising a signal processing / amplifying unit for amplifying and transmitting to the base station through the first transmit and receive antenna. The method of claim 1, wherein the second transmit / receive antenna Personal relay using RF coupling, characterized in that the loop antenna. The method of claim 2, wherein the loop antenna Personal relay using RF coupling, characterized in that the rectangular tube type hole formed therein for inserting the antenna of the mobile communication terminal. 4. The personal relay as claimed in claim 3, wherein a rubber or plastic member is disposed inside the hole. The method of claim 2, wherein the loop antenna Personal relay using RF coupling, characterized in that the patch-type loop antenna with a loop pattern formed on the PCB. The method of claim 5, wherein the patch loop antenna Personal relay using RF coupling characterized in that the coupling is coupled to the antenna of the mobile communication terminal to the pinch type. The apparatus of claim 2, wherein the signal processing / amplification unit is built in a main body. The loop antenna is a personal repeater using an RF coupling, characterized in that the integral part of the main body is formed of a projection formed with a hole for inserting the antenna of the mobile communication terminal in a portion of the main body. The apparatus of claim 2, wherein the signal processing / amplification unit is built in a main body. The loop antenna is a personal type repeater using RF coupling, characterized in that formed in a PCB pattern on a portion of the body. The method of claim 8, wherein the loop antenna Using the RF coupling, the projecting portion is formed to protrude at a position corresponding to the antenna of the mobile communication terminal, and the elastic force is applied upward, but the projecting portion is movable up and down by the pressing force of the antenna of the mobile communication terminal. Personal repeater. The antenna of claim 1, wherein the first transmit / receive antenna is Personal relay using RF coupling, characterized in that the monopole form standing vertically on the support plate. The personal relay of claim 10, wherein the end of the monopole is formed of a rubber or plastic cap. The personal repeater of claim 1, wherein the signal processing / amplification unit is built in a main body, and the first transmission / reception antenna is a pole antenna coupled to a part of the main body by a universal joint. . The RF coupling method of claim 1, wherein the signal processing / amplification part is built in a main body, and the first transmission / reception antenna is configured as a PCB type patch antenna in a part of the main body to be integrated with the main body. Personal repeater used. The method of claim 1, wherein the repeater Personal relay using RF coupling, characterized in that implemented in the form of a cap or auxiliary pack or case that can accommodate a mobile communication terminal. The service antenna of claim 14, wherein the service antenna of the repeater and the terminal is Personal repeater using RF coupling, characterized in that the fixed in any one of a band type, rubber cap type, light chip type locking type, sliding cap type, tong type. The signal processing / amplifying unit of claim 1, wherein the signal processing / amplifying unit Receives a signal received through the first transmission and reception antenna and outputs it to the mobile communication terminal through the second transmission and reception antenna, and receives the signal received from the mobile communication terminal through the second transmission and reception antenna and the first transmission and reception A first duplexer outputting to the base station through an antenna; A forward amplifier for amplifying a signal received from the first duplexer; Receiving a signal amplified by the forward amplifying unit and outputting the signal amplified to the mobile communication terminal through the second transmit / receive antenna, and receiving the signal received from the mobile communication terminal and outputting the received signal to the base station through the first transmit / receive antenna; 2 duplexer; And And a reverse amplifier for amplifying the signal received from the second duplexer. The method of claim 16, wherein the repeater A second forward amplifier which amplifies the signal received from the first duplexer; And a delayer configured to delay an output of the second forward amplifier and output the delayed output to the second duplexer. The method according to any one of claims 1 to 16, And a hands-free wireless connection to the mobile communication terminal using a radio system.