KR101572496B1 - A band jamming device and a broadband jamming device having plural band jamming devices - Google Patents

Abstract

The present invention relates to a band-specific radio-wave disturbing apparatus, and more particularly, to a band-specific radio-wave disturbing apparatus comprising: a control unit for outputting a selection signal for each channel for a plurality of channels constituting a specific frequency band; A signal processing unit for generating a jamming signal corresponding to the channel according to a channel selection signal of the control unit; An amplifying unit for amplifying a jamming signal for a corresponding channel output through the signal processing unit to a desired output signal; And an antenna for transmitting the jamming signal generated by the amplification unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a broadband radio wave disturbing apparatus and a broadband radio wave disturbing apparatus,

The present invention relates to a band-specific radio wave disturbing apparatus and a broadband radio wave disturbing apparatus combining the same. More particularly, the present invention relates to a broadband radio wave disturbing apparatus that divides a specific frequency band into a plurality of channels, generates a jamming signal for each channel according to a channel selection signal, Band radio wave disturbing device capable of reducing the volume of a device and reducing power consumption, and a broadband radio wave disturbing device capable of disturbing broadband radio waves by having a plurality of such band-specific radio wave disturbing devices.

In a rapidly changing wireless communication market, explosives are remotely controlled by using mobile phones or wireless devices to explode, or there is a frequent occurrence of doubtful conversations. Therefore, there has been a demand for radio disturbance, that is, jamming, in order to protect VIPs from remote explosives and / or interception, and to protect the safety of the people who send overseas.

In addition, terrorist attacks on major facilities of unmanned airplanes and the threat of attack by self-exploitation or high-explosive explosion far exceed common sense levels, threatening the security environment at home and abroad at a very high level globally, Threats are steadily increasing.

For example, in the war against Iraq and Afghanistan, which operated high-speed explosives, they developed a variety of quasi-conventional weapons such as remote control type or rocket-type rapid explosive as well as booby trap type combined with advanced IT technology. As seen in the recent explosions in the boom at the Boston Marathon, the pattern of terrorism for the unspecified number of people will evolve and become even more evil.

In addition, the unmanned reconnaissance case can be used as a self-destructive terrorist equipment through remodeling and development at any time, even if the equipment is not highly accurate and high-performance equipment.

Therefore, we need more efficient, powerful and immediate on-site countermeasures against various forms of terrorist attacks using commercial communications networks. We will move away from the paradigm that has been dealt with until now, There is a demand for a solution.

On the other hand, a local jammer using a mobile communication channel is still used, and a method using a CDMA and a PCS source and a method using a noise source have been proposed as jammers. However, in order to jam the wide band (for example, 20 MHz to 6 GHz) by the conventional method as described above, the size of the equipment becomes large and high power is required.

Particularly, in the registered invention of the present invention, in the registered patent No. 10-1404454, the RF switch and the coupler must be provided for each band, and a main control part for controlling the RF switch and the coupler is separately provided and used for jamming a broadband of 20 MHz to 6 GHz There is a problem that the volume of the apparatus is increased and the power consumption is increased.

Therefore, there is a need for a device capable of jamming a wide band with small-sized equipment and low power, and capable of jamming only a specific band as needed.

Korea Patent Office Registration No. 10-1404454

An object of the present invention is to provide a method and apparatus for generating a jamming signal for each channel according to a channel selection signal by dividing a specific frequency band into a plurality of channels and transmitting the jamming signal for each channel, thereby reducing the volume of the apparatus, The present invention is to provide a broadband radio disturbing apparatus capable of disturbing wide-band propagation by providing a disturbing apparatus and a plurality of such band-specific radio wave disturbing apparatuses.

In order to achieve the above-described object of the present invention and to achieve the specific effects of the present invention described below, the characteristic structure of the present invention is as follows.

According to an aspect of the present invention, there is provided an apparatus for controlling a frequency band, comprising: a controller for outputting a selection signal for each channel for a plurality of channels constituting a specific frequency band; A signal processing unit for generating a jamming signal corresponding to the channel according to a channel selection signal of the control unit; An amplifying unit for amplifying a jamming signal for a corresponding channel output through the signal processing unit to a desired output signal; And an antenna for transmitting the jamming signal generated by the amplification unit.

The control unit may randomly output the selection signals for each channel sequentially or randomly according to a set time period.

Wherein the signal processing unit comprises: a control voltage generator for generating a control voltage according to a channel selection signal of the controller; A sine wave generator for generating a sine wave according to the control voltage of the control voltage generator and the channel selection signal of the controller; A voltage controlled oscillator for outputting a signal having a frequency corresponding to a voltage value of a signal output through the sine wave generating unit; A noise signal generator for generating a noise signal; And a mixer for mixing the frequency signal of the voltage controlled oscillator and the signals generated by the noise signal generator to output a jamming signal.

The control voltage of the control voltage generator may be a voltage value corresponding to a center frequency of the jamming signal.

The sine wave generated by the sinusoidal wave generator may have a peak-to-peak voltage value corresponding to a bandwidth of the jamming signal.

The control unit does not output a channel selection signal for at least one channel, and thus can secure the coverage by only turning off the jamming signal of the specific channel.

The specific frequency band may be any one of 20 to 100 MHz, 90 to 800 MHz, 700 to 2700 MHz, and 2600 to 6000 MHz.

The plurality of channels constituting the specific frequency band may be six to eight.

The present invention also provides a broadband radio disturbing apparatus combining a plurality of the above-described band-specific radio disturbing apparatuses.

According to the embodiment of the present invention, it is possible to block the operation of all wireless devices in the jammer area by providing the broadband jamming device, and to provide jamming only for a specific band. In addition, according to the embodiment of the present invention, when a user wants to communicate with the outside in the jammer area, the user can secure the communication right while maintaining the radio disturbance state by controlling each channel without turning off the device.

In addition, according to the embodiment of the present invention, transmission is performed simultaneously with generation of a signal for each channel, and channel switching can be performed by a control unit without a separate channel switching means such as an RF switch, The cost can be reduced.

Therefore, the apparatus according to the embodiment of the present invention can protect the military, the police, and the VIP protection security guards from the remote-assisted explosive terrorism, and can smoothly perform operations in the operational area (jammer area) Let's do it.

In addition, according to the embodiment of the present invention, it is possible to prevent the occurrence of unexpected events such as sudden explosion (IED) using wireless communication network expected from domestic and foreign hostile forces, terrorists and complainants, unmanned flying object terrorism, It has the advantage of protecting national factors from threats of type terrorist attacks, avoiding the exposure of major national facilities, or securing national security.

1 is a block diagram showing a configuration of a radio wave disturbance device for each band according to an embodiment of the present invention.
2 is a diagram illustrating a detailed configuration of a signal processing unit according to an embodiment of the present invention.
3 is a diagram showing a detailed configuration of a control voltage generator according to an embodiment of the present invention.
4 is a diagram illustrating a detailed configuration of a sine wave generating unit according to an embodiment of the present invention.
5 is a circuit diagram illustrating a noise signal generator according to an embodiment of the present invention.
6 is a diagram showing an output waveform of a noise signal generator according to an embodiment of the present invention.
7 is a diagram illustrating a VCO of a signal processing unit according to an embodiment of the present invention.
8 is a view showing a mixer of a signal processing unit according to an embodiment of the present invention.
9 is a graph showing the input / output relationship of the VCO of the signal processing unit according to the embodiment of the present invention.
10 is a graph showing an input / output waveform of a VCO of a signal processing unit according to an embodiment of the present invention.
11 is a timing diagram for channel switching in a controller according to an embodiment of the present invention.
12 is a diagram illustrating a detailed configuration of an amplifying unit according to an embodiment of the present invention.
13 is a diagram showing input / output signal waveforms of an antenna according to an embodiment of the present invention.
FIG. 14 is a diagram illustrating jamming signal control for each channel of a broadband radio disturbing apparatus to which a radio wave disturbance device for each band according to an embodiment of the present invention is combined.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which the claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

The present invention discloses a band-specific radio disturbing apparatus capable of reducing the size and power consumption of the apparatus by increasing the efficiency of the apparatus, and a broadband radio disturbing apparatus having a plurality of the apparatuses.

According to an embodiment of the present invention, a specific frequency band is divided into a plurality of channels, and a sine wave generator operates a VCO (Voltage Controlled Oscillator) corresponding to a desired frequency for each channel, and a control voltage is generated between the sine wave generator and the VCO The sine wave acquires a desired frequency band, and then synthesizes the desired frequency band with a white noise signal to generate a jamming signal for each channel. At this time, a broadband radio wave disturbing apparatus can be implemented by combining a plurality of radio wave disturbance apparatuses each composed of a plurality of channels. With this configuration, it is possible to separate the broadband radio wave disturbance device by band and use it for jamming only a desired frequency band.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

1 is a block diagram showing a configuration of a radio wave disturbance device for each band according to an embodiment of the present invention. 1, a radio wave disturbance apparatus for each band according to an embodiment of the present invention includes a controller 110, a signal processing unit 120, an amplifier 130, and an antenna 140 .

The control unit 110 can control the signal processing unit 120 and can communicate with the outside. More specifically, it is possible to control each channel of the radio wave disturbance device for each band and to control the output signal. Also, a control signal for generating each channel signal can be output according to the selection timing of each channel of the radio wave disturbance device for each band.

The controller 110 may output the corresponding channel selection signal to the signal processing unit 120 according to the selection timing of each channel and the signal processing unit 120 may receive the corresponding channel selection signal in response to the channel selection signal of the controller 110 Thereby generating a channel signal. For example, when it is time to output a channel signal of 20 to 40 MHz among a plurality of channels in the range of 20 MHz to 100 MHz, the control unit 110 transmits a channel selection signal corresponding to a channel signal output of 20 to 40 MHz to the signal processing unit 120 Can be output. The signal processing unit 120 may generate a channel signal of 20 to 40 MHz in response to the channel selection signal.

The signal processing unit 120 generates a jamming signal of the corresponding channel corresponding to the channel selection signal received from the controller 110 according to an embodiment of the present invention. For example, according to the embodiment of the present invention, the jamming signal may generate a jamming signal for each channel for a plurality of channels divided for one frequency band corresponding to the channel selection signal of the controller 110. [ A detailed description thereof will be given later in detail with reference to FIGS. 2 to 10.

The signal processor 120 may generate a corresponding channel signal according to a channel selection signal of the controller 110 and transmit the generated signal at the same time. Therefore, as in the pre-registration invention of the present invention, a separate RF control unit and an RF switch for selecting a channel signal are not required and can be used for each desired band, so that the equipment can be reduced in size and weight.

The amplifying unit 130 amplifies the jamming signal for the channel output through the signal processing unit 120 to a desired output signal.

The antenna 140 emits the jamming signal amplified through the amplifier 130 into a free space.

As described above, the radio wave disturbance device for each band according to the present invention is designed to have a control unit for each band and to generate and transmit a jamming signal for each band of each band, The volume of the equipment can be significantly reduced.

The channel selection signal output from the controller 110 may be randomly output to each of a plurality of channels included in the corresponding band sequentially or randomly. For example, when the first channel is divided into the first to sixth channels in the first band, the channel selection signals may be randomly output from the first channel to the sixth channel sequentially or randomly in a predetermined time period.

Hereinafter, detailed configurations and functions of the respective components will be described in detail with reference to FIGS. 2 to 12. FIG. First, detailed configuration and function of the signal processing unit 120 will be described in detail with reference to FIG. 2 to FIG.

2 is a diagram illustrating a detailed configuration of a signal processing unit according to an embodiment of the present invention. 2, the signal processing unit 120 of the radio wave disturbance apparatus generates a jamming signal for each channel as described above according to an embodiment of the present invention, and includes a control voltage generating unit 210, a sine wave generating unit 220, A VCO (Voltage Controlled Oscillator) 230, a mixer 240, and a noise signal generator 250.

The VCO control voltage generator 210, the sinewave generator 220 and the noise generator 250 are controlled by a control signal of the controller 110 And generates a signal of a desired channel according to the selection signal. The control unit 110 controls the digital signal according to a preset program to generate a VCO control voltage through the control voltage generating unit 210 and a sinewave And generates a noise signal (for example, a white noise signal) through the noise signal generating unit 250. Therefore, the center frequency and the frequency band for each channel of the jamming signal can be set by the control signal of the controller 110. [ Therefore, by setting the center frequency and the frequency band for a plurality of channels, it is possible to implement a radio wave disturbance device for each band.

For example, when the control unit 110 outputs a channel selection signal for the first channel among the first channel to the sixth channel constituting the first band, the control voltage generating unit 210 generates a control voltage corresponding to the first channel Can be generated.

The sinusoidal wave generating unit 220 generates a sinusoidal wave signal by considering a frequency band and a bandwidth of the selected channel according to a channel selection signal of the controller 110 and a control voltage signal of the control voltage generator 210. [ Lt; / RTI >

The sinusoidal wave generated by the sinusoidal wave generator 220 is input to the VCO 230 and the VCO 230 may output a frequency band signal corresponding to the input sinusoidal wave. At this time, the center frequency is obtained by inputting the control voltage to the VCO 230, and the frequency band of the corresponding channel is obtained by the sinusoidal wave input together with the VCO 230.

The mixer 240 mixes the frequency signal of the channel output through the VCO 230 with the noise signal generated by the noise signal generator 250 and outputs a jamming signal.

Hereinafter, each of the components constituting the signal processing unit 120 will be described in more detail with reference to FIGs. 3 to 10. FIG.

3 is a diagram showing a detailed configuration of a control voltage generator according to an embodiment of the present invention. 3, the control voltage generator 210 may include a digital-to-analog converter (DAC) 300, and may include a digital control signal from the controller 110 as shown in FIG. Converts it into an analog voltage signal and outputs it. At this time, as shown in the figure, the output signal of the DAC 300 is a signal having a constant voltage level, and the center frequency of the jamming signal can be set by the voltage level. The DAC 300 may output a signal of a voltage level corresponding to the center frequency of the jamming signal corresponding to the channel according to the channel selection signal of the controller 110. [

For example, when the DAC 300 operates the DAC 300 according to a channel program preset by the control unit 110 in order to capture the center frequency Fc of the jamming signal, the DAC 300 outputs a digital signal as a constant voltage do. Therefore, by controlling the VCO 230 with the voltage, the center frequency of the jamming signal corresponding to each channel can be set. For example, when a voltage of 1.2 V is outputted, a jamming signal having a center frequency of 879 MHz corresponding thereto can be generated. Therefore, a jamming signal of 864 MHz to 894 MHz band having a center frequency of 879 MHz can be generated as the output voltage of the DAC 300 of 1.2V.

4 is a diagram illustrating a detailed configuration of a sine wave generating unit according to an embodiment of the present invention. The sine wave generating unit 220 outputs a sine wave to determine a frequency band range of the jamming signal generated by the signal processing unit 120 for each channel. That is, the voltage level of the signal output from the control voltage generator 210 is set as the center frequency of the jamming signal of the corresponding channel, and the voltage level of the signal of the corresponding channel according to the voltage range of the sine wave output from the sine wave generating unit 220 The frequency band range of the jamming signal can be determined.

4, the sinusoidal wave generator 220 may include a DAC 410 and a direct digital synthesis (DDS) 420 according to an embodiment of the present invention. The DAC 410 and the DDS 420 receive and process a digital control signal from the control unit 110, respectively.

More specifically, the DAC 410 outputs an adjust voltage as an analog control signal in accordance with the digital control signal from the control unit 110.

The DDS 420 outputs a sine wave according to a control signal of the controller 110 and adjusts a peak-to-peak value of a sine wave received from the DAC 410 .

Accordingly, when a digital signal corresponding to each channel preprogrammed in the controller 110 operates the DDS 420, a sinewave as shown in FIG. 4 is output, and the output sinusoidal wave is outputted to the VCO 230 And becomes a control voltage.

The DAC 410 outputs a voltage capable of controlling the DDS 420 (for example, 0.2 V to 1.2 V) when a digital signal pre-programmed in the controller 110 operates the DAC 410. The amplitude of the sinusoidal wave can be controlled by controlling the DDS 420 with the output voltage of the DAC 410 as described above. The amplitude of the sinusoidal wave may correspond to a frequency band of a signal output from the VCO 230. Accordingly, the control unit 110 can set the period of the sinusoidal wave by providing the control signal to the DAC 410 according to a preset value.

For example, the cycle of the sine wave can be set to 0.5 mu s (2 MHz) to 2 mu s (0.5 MHz), and can be controlled in units of 0.5 mu s (0.5 MHz) according to the control signal.

5 is a circuit diagram illustrating a noise signal generator according to an embodiment of the present invention. Referring to FIG. 5, the noise signal generator 250 may be constructed as a circuit as shown in FIG. 5, and the present invention is not limited to the illustrated circuit. That is, the noise signal can be generated by various methods.

In the apparatus according to the embodiment of the present invention, the noise signal generated by the noise signal generator 250 is mixed with the output signal of the VCO 230 to be used as a jamming signal for radio disturbance.

Thus, the white noise signal as shown in FIG. 6 can be generated by the circuit implemented in FIG. 6 is a diagram showing an output waveform of a noise signal generator according to an embodiment of the present invention.

7 is a diagram illustrating a VCO of a signal processing unit according to an embodiment of the present invention. Referring to FIG. 7, the voltage controlled by the sinusoidal wave generated through the sinusoidal wave generator 220 is outputted to output a signal having a frequency corresponding to the corresponding voltage.

The VCO 230 is a voltage controlled oscillator (VCO) that outputs a channel signal selected by the controller 110, and outputs a desired frequency through the control voltage.

8 is a view showing a mixer of a signal processing unit according to an embodiment of the present invention. Referring to FIG. 8, the mixer 240 mixes the output frequency signal output through the VOC 230 with the output signal of the noise signal generator 250 in FIG. 7 to output a jamming signal.

For example, the output frequency signal of the channel output from the VCO 230 and the white noise signal output through the noise signal generator 250 are combined and output by the mixer 240.

9 is a graph showing the input / output relationship of the VCO of the signal processing unit according to the embodiment of the present invention. Referring to FIG. 9, a signal of a corresponding frequency may be output according to the voltage level of a sine wave input to the VCO 230 in FIG. For example, in FIG. 9, it can be seen that when the voltage level of the sine wave is 0.8 V, a signal having a frequency of 879 MHz can be output. Also, when the voltage level of the sine wave is 0.5 to 1.1 V, it can be seen that a signal having a frequency of 864 MHz to 894 MHz is output. Thus, the center frequency and the frequency band of the jamming signal output according to the voltage level of the signal input to the VCO 230 can be determined.

That is, referring to FIG. 9, a jamming signal (propagation disturbance signal) as shown in FIG. 10 can be generated by controlling a voltage controlled oscillator (VCO) by a sine wave generated by the sine wave generating unit 220. 10 is a graph showing an input / output waveform of a VCO of a signal processing unit according to an embodiment of the present invention. On the other hand, the output signal of the VCO 230 is a continuous frequency signal CW (Continuous Wave) and has a certain frequency band with a specific center frequency.

Meanwhile, one of the propagation disturbance bands in FIG. 10 means one channel in the present invention. Therefore, a jamming signal can be generated for each band by selectively generating and outputting a signal for each of the channels according to a selection of the controller 110.

The signal processing unit 120 according to the embodiment of the present invention has been described in detail with reference to FIGS. 2 to 10. Hereinafter, a channel operation timing chart for each band will be described with reference to FIG.

11 is a timing chart for channel selection in the controller 110 according to an embodiment of the present invention. Referring to FIG. 11, when one band is divided into six channels, it is possible to selectively output each channel selection signal by switching the six channels in chronological order. However, since the present invention is not limited to the channel selection method shown in FIG. 11, it is needless to say that the channel selection signals can be randomly output in arbitrary order.

12 is a diagram illustrating a detailed configuration of an amplifying unit according to an embodiment of the present invention. 12, the amplifying unit 130 according to the embodiment of the present invention includes an over input protection unit 1210, an MMIC 1220, a filter and equalizer 1230, a gain control unit Gain (ADJ) 1240, an output amplifying part 1250, an isolator 1260, an output detecting part 1270, and the like.

And the input protection unit 1210 are circuits configured to protect the internal elements of the amplification unit 130 when the signal provided from the signal processing unit 120 of the apparatus according to the present invention exceeds the input range of the amplification unit 130 And the internal elements of the amplification unit 130 are protected from the input, and a stable output is assured.

The MMIC 1220 is a high-frequency integrated circuit for mounting / fabricating an active device and a passive device on a single semiconductor substrate. The MMIC 1220 can perform functions such as amplifying a weak signal and performing frequency conversion and the like. As described above, It is possible to reduce the number of parts used as well as the size and weight of the high frequency system in the apparatus according to the present invention, thereby increasing the production yield.

The filter and equalizer 1230 can maintain the output level of the amplifier 130 constant.

The gain adjusting unit 1240 can maintain the gain of the amplifying unit 130 constant.

The output amplifier 1250 amplifies the weak jamming signal by the desired output as the main transistor TR. Meanwhile, according to the embodiment of the present invention, the transistor of the output amplification part 1250 is TR using GaN and has a higher efficiency than the conventional used LDMOS and MOSFET, and is broadband.

The isolator 1260 is a passive element that prevents the amplified signal from the output amplification part 1250 from returning to the output amplification part 1250 again.

The output detection unit 1270 detects the forward output and the reverse output and sends the forward output and the reverse output to a control unit (not shown) of the amplification unit 130. Although not shown in FIG. 12, a power supply unit may be further provided to supply a constant amount of power to the amplification unit 130. For example, a power supply unit of 27 V (DC) may be used.

13 is a diagram showing input / output signal waveforms of an antenna according to an embodiment of the present invention. The antenna 140 is a conversion device for transmitting or receiving electromagnetic waves of a specific region. The antenna 140 according to the embodiment of the present invention radiates the jamming signal amplified from the amplifier 130 into a free space.

FIG. 14 is a diagram illustrating band and channel configurations of a broadband radio disturbing apparatus supporting multiple bands with a plurality of radio wave disturbance apparatuses for respective bands according to an embodiment of the present invention.

For example, as described above, a jamming signal of a corresponding channel is generated through a signal processing unit according to a channel selection signal of a control unit provided for each band for each channel, thereby generating a jamming signal of a desired band and channel.

For example, referring to FIG. 14, a band A may be composed of six channels (first to sixth channels). Likewise, the B-band, the C-band, and the D-band may be composed of six channels (first to sixth channels).

For example, the A-th band may be allocated to six channels within a first low band of 20 to 100 MHz, and the B-th band may be allocated to a second low band Six channels can be allocated in the frequency band of 700 MHz to 2700 MHz, which is the mobile communication band, and the D band (bands) can be allocated to six channels in a high-band frequency band of 2600 to 6000 MHz.

 Therefore, it is possible to use broadband radio wave disturbing apparatuses capable of disturbing broadband radio waves of 20MHz to 6000MHz by combining the radio wave disturbing apparatuses according to the A to D bands as described above, and separately using the radio wave disturbing apparatuses according to the A to D band .

In FIG. 14, jamming signals are shown as being composed of six channels for each band for four bands, but the present invention is not limited to the above-described number. It is also possible to operate with 6 to 8 channels for each band for four bands.

Conventionally, it has been necessary to switch and output the jamming signal for each channel by each RF switch. However, in the embodiment of the present invention, the size and power consumption of the equipment can be reduced by selectively generating and outputting a channel- . In addition, a broadband jamming device can be implemented in this manner, and a jamming signal can be controlled to be on or off for a specific channel in a specific frequency band.

The jamming signal can be amplified to a desired output by using the apparatus according to the embodiment of the present invention and the jamming signal can be radiated into the free space through the antenna. At this time, the signal radiated through the antenna can maintain the waveform as shown in Fig.

On the other hand, when the user desires to communicate with the outside in the jamming area, the user can secure the ownership by controlling each channel according to the embodiment of the present invention without turning off the entire jamming device. That is, according to the embodiment of the present invention, the control unit 110 can control each channel and turn off a specific channel, thereby securing a communication right. According to the illustrated method, six channels are provided for each band in four bands, and the band of each channel can be controlled by a digital signal in units of 1 MHz by a control unit.

Accordingly, the device to which the method according to the embodiment of the present invention is applied can be protected from the remote attack, the military, the police, and the VIP protection security guards, and can smoothly perform operations in the operation area (jammer area) .

For example, the controller controls not to generate the signal of the third channel of the third band so that the jamming signal is not outputted in the corresponding channel, so that the call can be performed using the channel.

In order to jam only a specific band (for example, 20 MHz to 80 MHz (RC model airplane band), 2400 MHz band (model airplane band), and 1100 MHz to 1500 MHz (GPS band) It is also possible to construct a radio wave disturbing device.

The invention has been described above with the aim of method steps illustrating the performance of certain functions and their relationships. The boundaries and order of these functional components and method steps have been arbitrarily defined herein for convenience of description. Alternative boundaries and sequences may be defined as long as the specific functions and relationships are properly performed. Any such alternative boundaries and sequences are therefore within the scope and spirit of the claimed invention. In addition, the boundaries of these functional components have been arbitrarily defined for ease of illustration. Alternative boundaries can be defined as long as certain important functions are properly performed. Likewise, the flow diagram blocks may also be arbitrarily defined herein to represent any significant functionality. For extended use, the flowchart block boundaries and order may have been defined and still perform some important function. Alternative definitions of both functional components and flowchart blocks and sequences are therefore within the scope and spirit of the claimed invention.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

110: control unit 120: signal processing unit
130: amplification unit 140: antenna
210: control voltage generator 220: sine wave generator
230: VCO 240: Mixer
250: noise signal generator 300, 410: DAC
420: DDS 1210: Input protection unit
1220: MMIC 1230: Filter and equalizer section
1240: gain control unit 1250: output amplifying unit
1260: Isolator 1270: Output detector

Claims (9)

A controller for outputting a selection signal for each channel for a plurality of channels constituting a specific frequency band;
A signal processing unit for generating a jamming signal corresponding to a channel selected according to a channel selection signal of the control unit;
An amplifying unit for amplifying a jamming signal for a corresponding channel output through the signal processing unit to a desired output signal; And
And an antenna for transmitting and processing the jamming signal generated by the amplifying unit,
The signal processing unit,
A control voltage generator for generating a control voltage for a corresponding channel according to a channel selection signal of the controller;
A sine wave generating unit for generating a sine wave for the channel according to the control voltage of the control voltage generator and the channel selection signal of the controller;
A voltage controlled oscillator for outputting a frequency signal of a corresponding channel corresponding to a voltage value of a signal outputted through the sine wave generating unit;
A noise signal generator for generating a noise signal; And
And a mixer for mixing the frequency signal of the voltage-controlled oscillator and the signals generated by the noise signal generator to output a jamming signal for the corresponding channel.
The apparatus of claim 1,
And randomly outputs the selection signal for each channel sequentially or randomly in accordance with the set time period.
delete 2. The apparatus of claim 1, wherein the control voltage of the control-
Wherein the jamming signal is a voltage value corresponding to a center frequency of the jamming signal.
The apparatus of claim 1, wherein the sinusoidal wave generated by the sinusoidal wave generating unit includes:
Wherein the peak-to-peak voltage value is a voltage value corresponding to the bandwidth of the jamming signal.
The method according to claim 1,
Wherein,
Wherein the channel selection signal for at least one channel is not outputted so that only the jamming signal of the specific channel is turned off to provide the coverage of the band.
The method according to claim 1,
Wherein the specific frequency band is any one of 20 to 100 MHz, 90 to 800 MHz, 700 to 2700 MHz, and 2600 to 6000 MHz.
The method according to claim 1,
Wherein the plurality of channels constituting the specific frequency band are six to eight.
A broadband radio disturbing apparatus comprising a plurality of band-specific radio wave disturbing apparatuses according to any one of claims 1, 2, and 4 to 8.

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