KR102298763B1 - Anti-drone jamming device detachably mountable to weapons - Google Patents

Abstract

The present invention includes a bracket unit detachable from a firearm, an antenna unit coupled to the bracket unit for radiating a jamming wave, and an equipment unit for generating, converting and amplifying a digital signal to transmit a jamming wave to the antenna unit, Provided is an anti-drone jammer device detachable from a firearm that can be physically destroyed by firing bullets through it, and at the same time transmit jamming waves to defend against intruding drones.

Description

Anti-drone jammer device detachable from firearms {ANTI-DRONE JAMMING DEVICE DETACHABLY MOUNTABLE TO WEAPONS}

The present invention relates to the blocking and protection of wireless communication, and more particularly, in response to the intrusion of an unmanned aerial vehicle such as a drone penetrating into the air, it can be defended from various angles and can be mounted and detached so that it can be flexibly adapted to the field. It is about a jammer device that does

With the recent development of drone technology, various types of drones have been developed and supplied to the public. International companies Amazon and Google are in the process of commercializing drones that can perform a variety of tasks, from delivering goods to providing high-speed internet. These drones can be viewed as a type of unmanned aerial vehicle, which is smaller and lighter than military unmanned aerial vehicles, which means that detection is relatively difficult. With the spread of drones, drones, which are low-cost unmanned aerial vehicles, are becoming a potential threat to commercial aviation facilities, essential infrastructure, confidential facilities, and even the military. In other words, there is a possibility of misuse depending on the combination of drones with photo or video recording equipment, and therefore there is a possibility that they may become a threat to various security facilities or social infrastructure. In fact, in Washington, there is a case where a person who enjoys drones as a hobby accidentally crashed into the White House and issued a security alert. There is also a case of requesting to develop a weapon that exists. Also, in Korea, the need for so-called anti-drone defense facilities that can prevent aircraft from entering the no-fly zone after the crash of a North Korean unmanned aerial vehicle while filming the Blue House and downtown Seoul is emerging.

However, the development of equipment capable of effectively responding to intrusions of unmanned aerial vehicles (UAVs) operating by receiving frequencies in the air, such as drones, is still insignificant in Korea as well as worldwide.

On the other hand, a wireless communication network used for drones, etc. transmits radio waves in the air so that information can be exchanged in various forms such as one-to-one, many-to-one, and one-to-many. This is called wireless communication jamming.

Korean Patent Application Laid-Open No. 1999-0083728 discloses a radio jammer of the prior art, and FIG. 1 is a block diagram thereof.

Looking at this, the oscillation signal from the oscillation unit 10 is transferred to the upconverter 40 through the buffer 30 . The up-converter 40 up-converts the oscillation signal to the frequency band of the wireless communication device to be disturbed by multiplying the frequency. In order to prevent the up-converter 40 from free-running when power is applied to the device, the power-on reset unit 20 turns on the up-converter 40 after a predetermined time has elapsed after power is applied. It serves to reset.

However, the jammer of the prior art operates in a predetermined fixed frequency band, is fixed for input of control power, and has a fixed antenna, so the equipment has a large volume and mobility is significantly reduced as well as a variety of bands. Since it is difficult to cope with the frequency, it is difficult to apply it to an unmanned aerial vehicle that can penetrate the air, such as a drone.

In recent years, drones can access various locations and facilities and actual attacks are made in various forms. Therefore, there are situations in which radio wave blocking as well as mechanical destruction are requested. demand is increasing.

The present invention has been devised to overcome the problems of the prior art, and an object of the present invention is to provide an anti-drone jammer device that can respond to various RF bands and can flexibly respond according to circumstances as well as aerial penetration of unmanned aerial vehicles.

The present invention for solving the above problems includes a bracket part detachable from a firearm, an antenna part coupled to the bracket part and emitting a jamming wave, and generating, converting and amplifying a digital signal to transmit the jamming wave to the antenna part. Provided is an anti-drone jammer device detachable from a firearm that includes an equipment part and is capable of physical destruction by firing a bullet through a firearm, and at the same time transmitting a jamming wave to defend an intruding drone.

Preferably, the first antenna part 2300 and the second antenna part 2400 emitting jamming waves of different frequency bands, the bridge connecting the first antenna part and the second antenna part, and the bridge are formed below the bridge It may be configured to include a bracket unit 2500 having a detachable detachable unit detachable from the firearm.

The bridge is preferably such that the first antenna part and the second antenna part are spaced apart from each other on both sides of the aiming part, but the aiming part which can be aimed with the naked eye is exposed above the center in the width direction.

In addition, the first antenna unit and the second antenna unit may transmit a jamming radio wave to defend against an intruding drone.

The first antenna unit includes a first body 2310 connected to one side of the bracket unit and a first casing 2320 that is fastened to the front side of the first body to open and close the inner space, and the second antenna unit includes a bracket. A second body 2410 connected to the other side of the part and a second casing 2420 fastened to the front side of the second body to open and close the inner space may be provided.

In addition, the selected one of the first body and the second body is provided with a terminal unit 2322 connectable to an external amplifier unit and a battery unit to enable external input.

The bridge is preferably formed to have a lower height at the center side than both sides connected to the first antenna unit and the second antenna unit in order to secure the gaze.

The amplifier unit includes a signal generating unit for generating a digital signal, an up-converting unit for up-converting the frequency from the signal generating unit to a commercial frequency band, and amplifying the converted signal from the up-converting unit, but two or more amplifying modules include a switching unit. and an amplifying unit connected in parallel by It is a three-band image transmission frequency, ISM 5GHz band (5,725MHz ~ 5,825MHz) to generate a wideband jamming signal can be transmitted to the first antenna unit and the second antenna unit.

According to the present invention, in addition to effectively blocking the frequency band, if necessary, physical destruction is possible through the unique functions of firearms such as rifles, machine guns, and automatic weapons, so that it is possible to effectively respond to situations such as infiltration of unmanned aerial vehicles. have.

In addition, it can cope with the threat of bomb attacks on major national facilities such as nuclear power plants and airports, illegal filming of major national facilities, terrorist threats by VIPs, and terrorist threats in stadiums or densely populated areas, and blocks the import of drugs and substances Of course, it is possible to deal with indiscriminate use in the no-fly zone, and there is an effect that can prevent collisions with people or facilities in advance. In this case, since portability can be ensured and the power required is minimized by flexibly adapting to the distance from the blocking object and managing the transmission output, the mobility as well as reliability in use can be improved.

1 is a block diagram showing a radio jammer of the prior art.
2 is a view showing an anti-drone jammer device detachable from a firearm according to the first embodiment of the present invention.
3 is a view showing an anti-drone jammer device detachable from a firearm according to a second embodiment of the present invention.
4 shows a jammer device mounted on an automatic machine according to a third embodiment of the present invention.
5 is a block diagram for explaining the structure of the equipment part in the anti-drone jammer device detachable to the firearm of the present invention.
6 is a block diagram showing the amplification unit in the anti-drone jammer device detachable from the firearm of the present invention.
7 is a block diagram showing a signal generating unit in the anti-drone jammer device detachable from the firearm of the present invention.
8 is a block diagram showing an up-conversion unit in the anti-drone jammer device detachable from the firearm of the present invention.
9 and 10 are graphs showing an embodiment of the generation of a jamming signal in the anti-drone jammer device detachable from the firearm of the present invention.
11 is a diagram of an embodiment of the operation of the control and display unit in the anti-drone jammer device detachable to the firearm of the present invention.
12 is a block diagram of an anti-drone jammer device detachable from a firearm according to a fourth embodiment of the present invention.
13 is a perspective view of the anti-drone jammer device of FIG. 12 viewed from the bottom.
14 is a front cross-sectional view for explaining a state in which a detachable anti-drone jammer device is mounted on a firearm according to a fourth embodiment of the present invention.
15 is a view showing a state in which the anti-drone jammer device of the fourth to fifth embodiments of the present invention is mounted.

Hereinafter, an anti-drone jammer device detachable from a firearm of a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

However, the embodiments described below are merely for explaining in detail enough that a person of ordinary skill in the art to which the present invention pertains can easily implement the invention, which limits the protection scope of the present invention. doesn't mean

In the following description, when a part is 'connected' to another part, this includes not only a case in which it is directly connected, but also a case in which another element or device is interposed therebetween. In addition, when a part 'includes' a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.

The present invention basically includes an equipment unit that generates, converts, and amplifies a digital signal to transmit a jamming wave, an antenna unit that receives and transmits a jamming wave from the equipment unit, and a bracket that is detachable from the firearm. Provides possible anti-drone jammer devices.

In the present invention, an example is described in which an antenna unit or a jammer device including an antenna unit is mounted on a firearm and constitutes a part of the firearm as a whole. Or, whether revolving, may include automatic firearms. However, it should be understood that the jammer device of the present invention may be applied to combustible firearms or explosive firearms and is included in the concept of the present invention.

In the embodiment of the present invention, it is basically described that the antenna unit is oriented in the direction of the barrel, but it does not mean that it must necessarily coincide with the firing direction of a bullet or the like. In addition, basically, an antenna and a control and display unit are provided in the antenna unit, and a signal generating unit, an up-converting unit, an amplifying unit, a filter unit, a controller unit, or a power supply unit, etc. Although the devices are housed, it goes without saying that any one or more of these components may be substituted for each other or additionally disposed. This configuration will be described later.

2 is a view showing an anti-drone jammer device detachable from a firearm according to the first embodiment of the present invention.

The antenna unit 2000 is coupled to replace the aiming unit that is the optical sight of the firearm, and in this embodiment, an example in which it is mounted as the portable firearm 200 is described. The antenna unit 2000 may be coupled to the upper body of the portable device 200 in the bracket unit 2500, and a first antenna unit 2300 and a second antenna unit 2400 capable of covering different bands. may include. However, the method and shape of such an antenna are not limited to the description of the present invention.

The equipment unit including the signal generating unit, the up-converting unit, the amplifying unit, and the power supply unit is formed integrally with the bracket unit 2500 , is directly coupled thereto, or is extended with a predetermined cable to be configured separately from the portable device 200 . A case made of the may be considered, and an embodiment of such an equipment unit will be described later.

The portable firearm 200 has the form of a rifle capable of shoulder attachment and aiming, and has a front barrel that can physically strike. Specifically, it may be provided with a shoulder attachment portion 203 that can be attached to the shoulder or body, a handle portion 201 gripped by any one hand, and a trigger portion 202 that enables the firing operation of the bullet.

Accordingly, the antenna unit 2000 may be mounted on a sight mounting portion (reference number not shown) instead of the sight, and the bracket portion 2500 has a structure corresponding to this coupling structure.

Based on the state shown in the description of the present invention, the direction in which the barrel is disposed is defined as the front, and the direction in which the shoulder attachment portion 203 is disposed is defined as the rear.

The first antenna unit 2300 and the second antenna unit 2400 each transmit radio waves in a predetermined band, thereby blocking the radio control frequency, tracking operating frequency, and/or image transmission frequency of the drone operating in the air. Because of this, the beam width is formed within 20 degrees so that the directivity is excellent and the influence on other locations is minimized, so that the jamming wave can be effectively directed toward the distant blocking object.

When a jamming signal is transmitted to disable the drone, for example, the frequency hopping method may be applied to disable the remote controller transmission/reception module or the spread spectrum method may be applied to disable the remote controller transmission/reception module.

The transmitter 1500 is provided in the portable antenna unit and may be configured in the form of a rifle barrel that is easy to move and aim. A detailed description in relation to this form will be described later.

At this time, the frequency band that can be applied to neutralize the aerial unmanned aerial vehicle is optional, but preferably the GPS, ISM 2.4GHz band, and ISM 5GHz band can be targeted. An antenna is preferably applied.

Here, the GPS band can be divided into a band A including the GPS L1, GLONASS L1, and BeiDou B1 bands, and a band B including the GPS L2, GPS L5, GLONASS L2, GLONASS L3, BeiDou B2, and BeiDou B3 bands.

More preferably, as the broadband high-gain antenna, a case in which a dual polarization antenna that simultaneously transmits vertical and horizontal polarizations is applied can be considered. In addition, the gain and structure are more than 10dBi, and it would be desirable to limit the 3dB beamwidth of the antenna to within 20 degrees in consideration of the accuracy of radiation in the air and remote radio transmission.

The first antenna part 2300 and the second antenna part 2400 may have a barrel shape long in the longitudinal direction to have a predetermined directivity, and a broadband dipole antenna of directivity may be provided therein. In this regard, specific examples will be described later.

On the other hand, the equipment unit that configures the jammer device to generate the jammer may be configured in combination with the antenna unit 2000 or may be connected to the antenna unit 2000 and configured in the form of a portable box.

In the present invention, efficient management of power is essential in order to enhance portability, and since it is necessary to have an effective transmission output corresponding to the distance of a blocking object such as a drone being aimed, the amplification unit can be operated by selecting a plurality of amplification modules. will be able Accordingly, in consideration of this, a control and display unit (not shown) may be disposed in the jammer device to control the output value according to the distance.

Such a control and display unit may be disposed adjacent to the trigger unit 202 in consideration of the convenience of operation, and is preferably made in the form of a dial to enable adjustment of a set value, but is not necessarily limited thereto. In an embodiment of the present invention, the operation of the jammer device may be controlled by the control and display unit, but it may also be considered to integrate a function of transmitting a jammer into the trigger unit 202 .

In addition, the control and display unit may include a light emitting unit such as an LED lamp or an LCD panel that can check the operating state. The function of controlling or displaying the output may be optional or additional.

3 is a view showing an anti-drone jammer device detachable from a firearm according to a second embodiment of the present invention.

A description overlapping with the case of the first embodiment will be omitted.

In this embodiment, the aiming unit 204 of the portable firearm 200 maintains its position and is coupled to a portion adjacent to the barrel parallel to the barrel. For example, the antenna unit 2000 and the bracket unit 2500 may be disposed at the coupling site of the grenade launcher coupled to the barrel of the rifle to replace it.

The aiming unit 204 functions to visually aim the aerial infiltration equipment such as a drone at the top of the portable firearm 200, and basically transmits a jamming wave in a direction consistent with the direction of the bullet. . Additionally, the aiming unit 204 may measure and display the distance to the blocking object through optical measurement means using a laser or infrared rays.

In addition, the aiming unit 204 or the antenna unit 2000 or a detection means capable of detecting electromagnetic waves of a target such as a drone, an unmanned aerial vehicle, or an aircraft as an additional configuration may be provided, for example, the control and display unit The closer the target is to the direction of the firearm, the faster the flashing speed of the lamp or the method of making a sound will be able to recognize it.

4 is a view showing an anti-drone jammer device detachable from a firearm according to a third embodiment of the present invention.

In this embodiment, a case in which the jammer device is coupled to the automatic machine 210 is illustrated, and a case in which the orientation direction of the jammer is automatically formed in accordance with the orientation direction of the automatic machine 210 is illustrated.

Such an automatic machine 210 is an embodiment, in order to enable the observer to control a gun at a distance from the gun control unit (not shown) in order to obtain the location information of the gun to the GPS module and the observation / control unit wired and wireless communication communication module for the gun, and a pan and tilt mechanism attached to the gun to control the aiming direction and firing of the gun It may be configured to include a control module for controlling the pan/tilt device by processing the received information. The control module calculates distance information from the target and controls the aiming azimuth and tilt of the pan/tilt device by using the control module to aim the gun at the target, and to fire the bullet according to the shooting command signal from the shooter after aiming is completed. can be controlled

In the third embodiment of the present invention, the direction of the antenna unit 2000 can be adjusted together by the pan and tilt device, and the control module will be able to control whether the bullet is fired and whether the jamming wave is transmitted. .

In the above-described embodiments, the first antenna part 2300 and the second antenna part 2400 may be connected to and supported by the firearm by the bracket part 2500, and the connection here includes electrical and mechanical connection.

The shape of the bracket part 2500 may be selectively made according to the equipment to be mounted, the position, and the fastening structure. The bracket part 2500 basically supports the rear side of the first antenna part 2300 and the second antenna part 2400, and each antenna is always exposed to the outside and moved in consideration of the internal element or It is preferable that the exterior is formed by the radome structure in order to protect the structure. Therefore, the first radome (reference number not shown) forming the exterior of the first antenna unit 2300 and the second radome (reference number not shown) forming the exterior of the second antenna unit 2400 are formed with the bracket unit 2500 and can be combined. In this case, the arrangement, size, and shape of the first antenna part 2300 and the second antenna part 2400 are optional.

The first radome and the second radome may be formed in a cylindrical shape with a closed front, and a radiator in the form of an element or a pattern and a support body thereof are accommodated therein in the longitudinal direction. At this time, an impact or deformation may occur between the internal radiator and the radome depending on vibration or inclination. It will be able to perform a fixed function.

The rear side of the first radome and the second radome can be fixed by being fastened to the bracket part 2500, and since the first antenna part 2300 and the second antenna part 2400 are made in a long shape in the longitudinal direction, the deformation There are concerns. In consideration of this, it is preferable that a fixing part (reference number not shown) is added between the first radome and the second radome to fix the interval therebetween. The fixing part may be formed in a form to wrap and connect the outer surfaces of the first radome and the second radome, and may include an insertion hole (reference number not shown) corresponding to the outer peripheral surfaces of the radomes.

5 is a block diagram for explaining the structure of the equipment part in the anti-drone jammer device detachable to the firearm of the present invention.

As described above, the case where the equipment unit 1000 is coupled to the bracket unit 2500 and mounted together with the antenna unit 2000 on a predetermined part of the firearm, or is a separate configuration and connected through a predetermined cable will be considered. will be able

The anti-drone jammer device detachable from the firearm of the present invention can transmit a jamming signal or a jamming signal to a predetermined targeted area or location through the antenna unit.

The antenna unit 2000 basically performs a function of radiating a predetermined RF signal for the purpose of disturbance to block reception of a communication signal. Of course, it can be set.

The jamming signal applied to the present invention can be understood as having a predetermined cut-off frequency band, and as a major example, it generates and transmits a jamming signal targeting an aerial unmanned aerial vehicle and neutralizes it through this. In the description of the present invention, the blocking object basically includes an unmanned aerial vehicle, but it should not be understood as excluding various radio wave transmission and/or reception equipment such as a control signal transmission and reception device of the unmanned aerial vehicle or a portable communication device.

In addition, if classified by the function of the frequency to be blocked, it can be classified into a radio control frequency, a GPS frequency, and an image transmission frequency.

When a jamming signal is transmitted to disable the drone, for example, a frequency hopping method or a spread spectrum method may be applied to disable the remote controller transmission/reception module.

At this time, the applicable frequency band to neutralize the aerial unmanned aerial vehicle is optional, but preferably GPS (1,160 MHz to 1,790 MHz), ISM 2.4 GHz band (2,400 MHz to 2,483.5 MHz), ISM 5 GHz band (5,725 MHz) ~ 5,825 MHz), and it is preferable to apply a wideband high-gain antenna in the 1,570 MHz to 2.5 GHz band.

Here, the GPS band includes a band A (1560 to 1605 MHz) including GPS L1 (1575.42 MHz), GLONASS L1 (1601.156 MHz) and BeiDou B1 (1561.098 MHz) bands, GPS L2 (1227.6 MHz), and GPS L5 (1786.45). MHz), 　 GLONASS L2 (1245.34 MHz), GLONASS L3 (1201.7 MHz), BeiDou B2 (1207.14 MHz), and BeiDou B3 (1268.62 MHz) bands, including B band (1160~1280 MHz).

More preferably, as the broadband high-gain antenna, a case in which a dual polarization antenna that simultaneously transmits vertical and horizontal polarizations is applied can be considered. In addition, the gain and structure are more than 10dBi, and considering the accuracy of radiation in the air and remote radio transmission, it would be desirable to limit the 3dB beamwidth of the antenna to within 20 degrees.

In the present invention, the components that can be accommodated in the equipment unit so as to be connected to the antenna unit and transmit a radio signal having a predetermined strength will be described in detail as follows.

The anti-drone jammer device detachable from the firearm of the present invention includes the antenna unit, the signal generating unit 1100, the up-converting unit 1200, the amplifying unit 1300, the filter unit 1400, and the controller unit 1700. In consideration of portability, a power supply unit 1600 connected to the battery unit 1610 may be provided.

The signal generator 1100 may generate a radio wave blocking signal, and as will be described later, it may perform a function of sweeping two or more signals in an intermediate frequency (IF) band. The frequency band may be selected by a user and input through the controller unit 1700 .

In this case, as described above, one or more Direct Digital Synthesizer (DDS) and/or Field Programmable Gate Array (FPGA) may be selected and combined to generate two or more signals. The signal generator 1100 may generate a jamming signal using white noise. As will be described later, the signal generator 1100 may be configured as an individual signal generator to generate signals independent of each other for each channel, and in some cases, the number of channels. It may be composed of an individual signal generator corresponding to . As described above, the band applied here is preferably the GPS and/or ISM 2.4 GHz band and/or the ISM 5 GHz band.

Control power controlled by the controller unit 1700 may be supplied from the power supply unit 1600, the power supply unit 1600 may be composed of a power supply unit (PSU; Power Supply Unit), and in this case, a stable power supply It may be combined with the battery unit 1610 for supply.

As another embodiment, the power supply unit 1600 receives power of a predetermined voltage from the outside, as an embodiment, single-phase alternating current (AC) 220V, a signal generating unit 1100 , an up-converting unit 1200 , and an amplifying unit 1300 . ), etc. may be supplied with a predetermined direct current (DC) power. When the power supply unit is connected to the power source in this way, it may be combined with an uninterruptible power supply (UPS).

The power supply unit 1600 as described above is preferably disposed together with a cooling unit to suppress performance degradation due to overheating, and also detects heat or overcurrent to notify the user that heat or overcurrent has occurred. . To this end, the anti-drone jammer device detachable from the firearm of the present invention further includes a notification unit (not shown), so that when the power supply unit detects that a failure has occurred, the user can visually or aurally check it. Enemy notifications may occur.

The up-converter 1200 receives a predetermined DC power from the power supply 1600 and up-converts the signal of the IF band generated by the signal generator 1100 into an RF band, which is a guard frequency band. The up-converter 1200 functions to upconvert the IF frequency generated by the signal generator 1100 into a commercial frequency band.

The up-converter 1200 converts the carrier signal of each channel generated by the signal generator 1100 into an RF frequency band of a predetermined band.

The amplifying unit 1300 receives a predetermined DC power from the power supply unit 1600 and amplifies the signal output from the upconverter 1200 . The power level of the signal output from the amplifying unit 1300 may have a higher power level than the power level of the signal in the band of the disturbance target.

In the present invention, power management is performed for portability, but the amplification unit 1300 includes a plurality of amplification modules in order to satisfy such complex requirements because it is necessary to adapt according to the aiming and distance to an unmanned aerial vehicle such as a moving drone. can be operated in combination. The operation of the amplification module may be controlled by a control and display unit provided in the antenna unit, which will be described later.

The filter unit 1400 suppresses unnecessary wave signals of an unwanted band among the signals output from the amplification unit 300 , selects only a signal within a designated band, combines them with a jamming signal, and sends the signal to the antenna unit 1500 . function to output. The filter unit 1400 may function to reduce the influence of interference on adjacent frequencies due to the output frequency of the amplifier unit 1300 .

When a frequency band for which disturbance is desired is selected, the controller 1700 may select an input for the corresponding selection. However, in the present invention, when neutralization is performed for an unmanned aerial vehicle, the controller unit 1700 sets the frequency bands of GPS and ISM as an input frequency range in advance, combines them into a wide band, and transmits them to the antenna as a single output. will be.

The transmission output capable of performing the most efficient neutralization of the unmanned aerial vehicle should be controlled by the configuration of the portable anti-drone RF jammer of the present invention, and the following equation is applied to calculate the transmission output.

Path Loss by frequency (400m):

Jamming signal output at 400m:

As described above, the power level of the signal output from the amplification unit 1300 preferably has a higher power level than the power level of the signal in the disturbance band, and as a result of the experiment, it should be 18 dB higher than the reception level of the original signal. It was confirmed that the radio wave could be effectively blocked.

Based on this, the transmission power of the radio wave blocking signal is calculated as follows.

frequency band
(MHz) antenna
gain
(dBi) output
Power
(dBm) Transmission output EIRP
(dBm) free space
Loss
(dB) jamming signal
reception level
(dBm/Total) drone control signal
Expected reception level
(dBm/Total) 1160 1790 10 40 50 88.4 -38.0 -110.0 2400 2483.5 12 40 52 92.2 -39.8 -59.2 5725 5825 12 40 52 99.7 -47.3 -66.7

On the other hand, the controller unit 1700 may be connected to the monitoring and operation unit 1710 by wire or wirelessly to monitor a predetermined state and control functions, such as output, battery level, PLL alarm, VSWR alarm, internal temperature, etc. can perform the monitoring function of output On/Off, gain value adjustment, FPGA reset control function, alarm status check, output status check, and status output function of remaining battery check There will be.

According to this configuration, the system standard of the present invention was determined as follows.

item standard note jamming signal frequency

GPS 1,160 to 1,790 MHz ISM 2.4G 2,400-2,483.5MHz control ISM 5G 5,725 to 5,825 MHz video maximum output

GPS 100 Watts ISM 2.4G 100 Watts control ISM 5G 50 Watts video Band flatness 3dB or less per service band Environment included output change 3dB or less per service band Environment included Gain adjustment range 0~15dB/1dB Step gain adjustment error Step: ±0.7dB Coupling Value 50dB ± 2dB VSWR 1.5 : 1 or less operating temperature -30 ~ 50℃

It should be noted that the above standard is to correspond to drones and to ensure portability and mobility at the same time, and has a difference from general fixed-type jamming equipment.

6 is a block diagram showing the amplification unit in the anti-drone jammer device detachable from the firearm of the present invention.

In the anti-drone jammer device detachable from the firearm, the amplification unit 1300 is configured by connecting a plurality of amplification modules 300a, 300b, ... in parallel for control according to the distance of the output.

Looking at each of the amplification modules 300a, the driving amplifier 1320 for amplifying the input signal input from the up-conversion unit 1200, and the main amplifier 1330 for removing and amplifying the distortion signal. and the configuration of such an amplifier may be made of a combination of various well-known amplification elements.

An input terminal and an output terminal of these amplifiers are provided with a coupler and a circulator, and may function to enable monitoring through a predetermined detection unit. Preferably, the input side coupler 1310 provided on the input side is provided from the upconverter 1200. It can function to branch and route the signal and detect the input power in the input detection unit 1311, and the output-side coupler 1340 provided on the output side can function to detect the amplified signal in the output detection unit 1341 can In addition, the circulator 1350 may be provided on the distal side to perform a function of removing an additional loss from the RF output path, and the reflected signal detector 1351 may detect the reflected signal VSWR.

Note that, according to the configuration of the detection units 1311 , 1341 , and 1351 , it is possible to overcome the limitation as a compact portable device to implement a protection function of the device due to over-output.

Each of the amplification modules 300a ... may be connected in parallel to each other to have a predetermined output from the antenna unit 1500 as a selected combination, for example, each amplification module 300a may be set to 20W. can In this case, it may have efficiencies of 20W and 45% in the first band (1,160 to 1,790 MHz), which is the above-mentioned frequency band, and 20W and 45% efficiencies in the second band (2,400 to 2,483.5 MHz), in the third band ( From 5,725 to 5,825 MHz), it can be made to have efficiencies of 20W and 35%. However, the output is an example and is not necessarily limited to the described example.

Combination and selection of these amplification modules may be made through predetermined switching, which will be described later.

In the present invention, amplification modules are stacked in parallel and the number of such arrangements is optional. In the case of the amplifier of the prior art, the output is limited because interference amplification occurs within the adjacent frequency. It should be noted that

7 is a block diagram showing a signal generating unit in the anti-drone jammer device detachable from a firearm of the present invention, and FIG.

The signal generator 1100 may be understood as a digital signal generator for generating a radio wave blocking signal, and the CPU 1110, FPGA 1120, DDS 1130 that functions by receiving control power from the power supply 1600 It may be composed of In this regard, since various known configurations may be applied, a detailed description thereof will be omitted.

At this time, in the signal generator 1100, sweep speed control function (6.67ns~1us adjustable), sweep step control function (5KHz~1MHz), bandwidth setting function, FPGA alarm ( Alarm) function, FPGA reset (Reset) function, etc. may be provided.

The upconverter 1200 functions to convert the IF signal generated by the signal generator 1100 into a radio wave cutoff frequency, and for this purpose, a plurality of BPFs, an IF mixer, and an RF mixer may be provided.

The up-converter 1200 has a frequency conversion function using a wideband mixer, an output control function for a short-range target, and interference minimization characteristics using a filter.

In this case, the upconverter 1200 may include a first LO and a second LO (reference number not shown), and may generate a wideband jamming signal by varying the second LO (2nd LO), which is described above. A first band (1,160 MHz to 1,790 MHz) having a bandwidth of 10 MHz, a second band (2,400 to 2,483.5 MHz) having a bandwidth of 83.5 MHz, and a third band (5,725 to 5,825 MHz) having a bandwidth of 100 MHz may be formed. . However, the combination for forming the band or broadband is not necessarily limited to the above-described example.

On the other hand, the control and display unit presented in the above embodiment is attached or formed on the firearm, such a control and display unit switching unit to select the operation of the amplification module (300a, 300b, 300c, ...) of the amplification unit 1300. 1301 can be controlled.

For example, when controlling the switching unit 1301 so that only one of the amplification modules 300a is operated, it may correspond to a distance of 400 m, and the control and display unit 2100 may display such a distance unit or an output unit. . In addition, according to the adjustment of the control and display unit 2100, the switching unit will be able to respond to the distance of the blocking object by increasing the gain value by interconnecting the amplification modules combined in parallel. The number of amplification modules connected in parallel is increased according to the operation of the control and display unit in the form of a dial, so that the output can be increased according to the distance.

In some cases, when aiming is performed in the aiming unit 2040, the distance to the blocking object is automatically measured, and the control and display unit 2100 controls the switching unit 1301 to control the output of the amplifier according to the distance. There will be.

9 and 10 are graphs showing an embodiment of the generation of a jamming signal in the anti-drone jammer device detachable from the firearm of the present invention.

A first CW signal α for sweeping a set band and a plurality of second CW sweep signals β for intensively sweeping a synchronization signal block (SSB) band within the set band may be included.

The signal generator 1100 may include a plurality of digital signal generators selected and combined with DDS and FPGA, respectively, and may generate and combine a first CW signal (α) and each second CW sweep signal (β) have.

For example, when jamming is performed on a 5G signal, a one-tone first CW signal (α) is generated for a band as shown, and a plurality of second CW sweep signals of a continuous wave channel corresponding to a plurality of sync signal blocks within a corresponding band are generated. (β) is combined.

The second CW sweep signal (β) is individually turned on/off and can be easily changed when the synchronization signal block frequency is changed. It would be desirable to make the difference in the intensity of the signal β large.

In the illustrated example, the first CW signal α corresponding to the 5G band sweeps the 3.5 GHz to 3.6 GHz band with one tone, but the one-tone band is selectable. For example, when the first CW signal α is 50 dBm, it is appropriate that the second CW sweep signals β are 40 dBm. In the illustration, the second CW sweep signals (β) are composed of eight signals that can be turned on and off, respectively.

In the case of the combination of the sweep signal and the sweep in the IF band, well-known elements related to signal generation, synthesis, filtering, and amplification may be combined, and thus a detailed description thereof will be omitted.

The band is formed by the above-described frequency generator 1010 on the basis of the frequency detected by the detector (not shown) and is transmitted in a directional or non-directional manner through the antenna 1500 .

9 shows an embodiment of a jammer mode selectable by the selection unit.

As described above, in the present invention, jamming signals of all communicable bands (20 - fen) can be generated, and frequencies for each band are divided into bands, and selection and jamming control are possible.

Referring to FIG. 9C , the frequency generator 1010 performs a spot jammer mode as a first mode and a sweep jammer mode as a second mode according to the selection of the selector 1702 . ), a wideband jamming mode may be selected as the third mode.

Regarding the frequency sweep, the description overlapping with the above will be omitted.

Accordingly, it is possible to edit for each frequency band, and it is possible to support jamming of multi-tones by multi-carriers as well as single tones. Note that there is an advantage of being immediately adaptable to SSB frequency fluctuations because on-off is possible for each channel as described above. In the case of the concept of the above-described predetermined multi-tone jamming, the multi-tone signal externally generated through the signal generator 1100, which is basically a combining generator, and generated in the baseband is output to the IF band, and the RF unit 1200. It can be operated to be transmitted by up-converting to a commercial frequency band. As another embodiment, a jamming signal is not generated in the baseband and is directly generated in the IF band to achieve structural simplicity.

In this case, it is possible to control the sweep interval and sweep time of the jamming signal, and it is possible to control the intensity of the output for each jamming signal.

On the other hand, the power level of the signal output from the amplification unit 1300 preferably has a higher power level than the power level for the signal used in the target, and as a result of the experiment, it is necessary to be at least 15 dB higher than the reception level of the original signal to effectively propagate. was confirmed to be able to block. A coupler and a circulator are provided at the input and output terminals of these amplifiers to enable monitoring through a predetermined detection unit. Preferably, the input-side coupler provided on the input side branches the signal from the up-converter 1200 . and routing and may function to detect input power by the input detection unit, and an output-side coupler provided on the output side may function to detect the amplified signal by the output detection unit. In addition, the circulator may be provided on the distal side to perform a function of removing an additional loss from the RF output path, and the reflected signal detecting unit may detect the reflected signal VSWR. Each of the amplification modules may be connected in parallel to each other to have a predetermined output from the antenna unit 1500 as a selected combination, and the combination and selection of these amplification modules may be made through predetermined switching.

Referring to FIG. 10, sequentially from the top, a hopping method (a), a white noise method (b), a multi-CW sweep method (c), and a jamming method for each band (d) are shown, and the graph on the left is shown on the time axis, and the graph on the right is shown on the frequency axis.

In the case of the hopping method, a noise signal is generated in the jamming band by turning on/off the signal at a predetermined period.

In the case of the white noise method, a noise source may be configured in various bandwidths according to selection, and in reality, it may be configured from 10 MHz, but is not limited thereto.

In addition, in the case of the multi continuous wave sweep method, it may be considered to combine several signals as a noise source, and in the case of jamming by band, multi-generation is performed from BW 10MHz and the sweep and continuous signals are combined to perform jamming.

According to the above method, it is possible to generate a communication jamming signal in all possible communication bands, and it is possible to select and control the jamming frequency for each band, as well as to easily edit each frequency band.

In addition, multi-tone jamming by single tone and multi-carrier for each operating frequency band is possible.

In addition, the jamming efficiency is improved with a composite signal, and it is easy to edit the jamming frequency.

In addition, it is possible to remove the sweep interval and sweep time of the jamming signal, and the output strength can also be individually controlled.

12 is a block diagram of an anti-drone jammer device detachable from a firearm according to a fourth embodiment of the present invention.

The fourth embodiment of the present invention is a modification of the first embodiment. That is, it is a type that can be mounted on the mounting guide 205, which is the sight mounting unit of the portable firearm 200, but the first antenna unit 2300 and the second antenna unit 2400 each covering different frequency bands are provided. When they are arranged in a vertical direction, it can obstruct the view and is spatially disadvantageous. In this embodiment, it is symmetrical in both directions and connected to each other with a bridge-shaped bracket 2500 to be mounted on the portable firearm 200. to present the form.

Here, redundant descriptions related to the portable device 200 will be omitted, and a mounting guide 205 capable of mounting an optical aiming unit is formed on the upper side. The mounting guide 205 is not limited to the illustrated form, and is not limited as long as it is a portion of the main body of the portable firearm 200 that is formed in the front adjacent portion of the sighting unit 204 that can be aimed with the naked eye.

The antenna unit 2000 includes a first antenna unit 2300 and a second antenna unit 2400 that are formed on both sides and accommodate antennas capable of transmitting frequencies having different frequency bands and/or strengths therein, respectively, and It consists of a bracket part 2500 having a bridge (reference number not shown) connecting the first antenna part 2300 and the second antenna part 2400 to be spaced apart from each other on both sides. The bracket part 2500 may be mounted on the mounting guide 205 , and a structure for this will be described later.

The first antenna part 2300 and the second antenna part 2400 have an external casing capable of accommodating an antenna and a predetermined element and wiring therein, and the internal space can be opened and closed in consideration of maintainability. It would be preferable to have a structure with In this embodiment, the second body 2410 is connected together with the bracket part 2500 on the rear side of the first body 2310 and the second antenna part 2400, which is the rear side of the first antenna part 2300, In the inner space of the bracket part 2500 , a predetermined electrical wire may be connected to the terminal part 2322 .

The first body 2310, the second body 2410, and the bracket part 2500 may be formed of a single structure. The first casing 2320 may be detachably fastened to the front side of the first body 2310 , and the second casing 2420 may be detachably fastened to the front side of the second body 2410 .

On the other hand, the terminal unit 2322 may be formed on one side selected from the first antenna unit 2300 or the second antenna unit 2400, but in some cases, independent terminals may be formed on both sides for independent frequency control. it might be In the present embodiment, the first antenna part 2300 is formed with a terminal part 2322 on the lower side of the first body 2310 and is connected to the external amplifier part 2010 and the battery part 2020 . Here, the amplifier unit 2010 may correspond to the function of the above-described equipment unit, and the description of the amplifier unit 2010 for frequency generation and amplification and the battery unit 2020 for supplying power will be omitted. do.

13 is a perspective view of the anti-drone jammer device of FIG. 12 viewed from the bottom.

The first body 2310 of the first antenna part 2300 and the second body 2410 of the second antenna part 2400 are connected by a bracket part 2500, and move toward the front side of the first body 2310. As described above, the second casing 2420 may be fastened to the front side of the first casing 2320 and the second body 2410 . This fastening is preferably made by a bolting method for robustness, and it will be preferable to be formed on the lower side of the fastening portion as shown to prevent contamination or external exposure.

The bracket part 2500, which connects the first antenna part 2300 and the second antenna part 2400 by being spaced apart from each other on both sides, includes a bridge (reference number not shown), which is a connecting body, and is formed on the lower side of the bridge to guide the mounting. It may be formed of a detachable part 2510 that can be mounted on the 205 .

The detachable part 2510 is made to correspond to the shape of the mounting guide 205 and may have various coupling shapes. Considering that the mounting guide 205 of the portable firearm 200 is wide at the upper side and has a fixing force in the upper and lower directions, and has a structure to be coupled through a sliding method from the front to the rear, the detachable part 2510 Also, corresponding to this shape, the lower side is narrow and the upper side is wide.

When the detachable part 2510 is inserted into the mounting guide 205 in a forward or backward slid form, the holding member 2511 for fixing the position in the front and rear is screwed in, thereby providing a mutual fastening force.

Referring to the front sectional view of FIG. 14 in more detail as follows.

The antenna unit 2000 is coupled to the front and rear sides of the upper mounting guide 205 of the portable firearm 200, and the first antenna unit 2300 and the second antenna unit 2400 are symmetrically formed at both ends of the bridge. It can be confirmed that they are placed.

The holding member 2511 is made in the form of a bolt that can be screwed to the side of the detachable part 2510, and when a rotational force is provided from the outside, it is inserted while providing pressure to the side of the mounting guide 205 so that the fastening can be made.

In the antenna unit 2000, the first antenna unit 2300 and the second antenna unit 2400 may direct a disturbing object such as a drone according to the user's shoulder attachment and aiming, and since the radio wave has a greater straightness than a bullet, the antenna It would be preferable that the position of ' corresponds approximately to the position of the gaze.

Accordingly, the heights of the first antenna unit 2300 and the second antenna unit 2400 may correspond to the height of the aiming unit 204 , and the aiming unit 204 is obscured despite the arrangement of the bracket unit 2500 . It is preferable not to lose. In consideration of this, the bridge of the bracket part 2500 may have a wedge or arc shape that is low in the center and relatively high in the portion connected to the first antenna part 2300 and the second antenna part 2400 . Accordingly, the aiming unit 204 is exposed to the upper center of the bridge when viewed from the rear side in the shoulder-attached state, so that aiming is possible.

15 is a view showing a state in which the anti-drone jammer device of the fourth to fifth embodiments of the present invention is mounted.

Fig. 15 (a) shows the mounting state of the antenna unit 2000 according to the fourth embodiment. The first antenna part 2300 and the second antenna part 2400 are arranged in a form spaced apart from each other on both sides from the upper side of the barrel, and are formed of a casing having a height higher than a width, respectively.

Fig. 15 (b) shows the fifth embodiment, and is a case in which the size of the casing is relatively small. The inner space of the first antenna unit and the second antenna unit may be divided into two sides again to include a pair of antennas, respectively.

In this fifth embodiment, it will be preferable that the bracket portion has a size and shape that does not obstruct the line of sight of the aiming unit 204 likewise, and the description overlapping with the fourth embodiment will be omitted.

In the illustrated embodiment, the bridge is different from the fourth embodiment in that it has a substantially flat plate shape.

Applications of the components of the above-described embodiments may be used interchangeably with each other, or in addition to each other.

The anti-drone jammer device detachable from the firearm according to the present invention not only effectively blocks the frequency band, but also physically destroys it if necessary, so it can effectively respond to situations such as infiltration of unmanned aerial vehicles.

Accordingly, it is possible to cope with the threat of bomb attacks on major national facilities such as nuclear power plants and airports, illegal filming of major national facilities, terrorist threats by VIPs, and terrorist threats in stadiums or densely populated areas, and block the import of drugs and substances. Of course, it is possible to deal with indiscriminate use in the no-fly zone, and there is an effect that can prevent collisions with people or facilities in advance.

In this case, since portability can be ensured and the power required is minimized by flexibly adapting to the distance from the blocking object and managing the transmission output, the mobility as well as reliability in use can be improved.

In the above, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims described below.

200...Portable handset 201...Handle part
202...Trigger part 203...Shoulder part
204...Aim 210...Automator
1000...equipment unit 1100...signal generator unit
1120...FPGA 1130...DDS
1200...Up-converting unit 1300...Amplifying unit
1301...Switching part 1310...Input side coupler
1311...Input detection unit 1320...Drive amplifier unit
1330...Main amplifier 1340...Output coupler
1341...Output detection unit 1350...Circulator
1351...Reflected signal detection unit 1400...Filter unit
1600...Power supply unit 1610...Battery unit
1700...controller unit 1710...monitoring and operation unit
2000...Antenna part 2010...Amp part
2020...battery unit 2100...control and display unit
2300... 1st antenna part 2310... 1st body
2320...First casing 2322...Terminal part
2400...Second antenna part 2410...Second body
2420...Second casing 2500...Bracket part
2510...Removable part 2511...Hold member

Claims (5)

a first antenna unit 2300 and a second antenna unit 2400 radiating jamming waves of different frequency bands; and
Includes; a bridge connecting the first antenna part and the second antenna part, and a bracket part 2500 formed below the bridge and having a detachable and detachable part on the upper part of the main body of the firearm;
The bridge connects the first antenna part and the second antenna part to be disposed on both sides with the aiming part as the center so that the aiming is possible with the naked eye in the center of the width direction,
The first antenna part and the second antenna part are spaced apart on both sides from the upper side of the firearm, but are arranged to correspond to the height of the aiming unit, and are detachable anti-drone jammer devices that can transmit jamming waves to defend against intruding drones.
According to claim 1,
The first antenna part includes a first body 2310 connected to one side of the bracket part and a first casing 2320 fastened to the front side of the first body to open and close the inner space,
The second antenna unit includes a second body 2410 connected to the other side of the bracket and a second casing 2420 that is fastened to the front side of the second body to open and close the inner space. Device.
3. The method of claim 2,
Any one selected from the first body and the second body,
An anti-drone jammer device detachable from a firearm having a terminal unit 2322 that can be connected to an external amplifier unit and a battery unit.
According to claim 1,
The bridge is
An anti-drone jammer device detachable from a firearm having a width wider than the center side and a height higher than the center side on both sides connected to the first antenna part and the second antenna part.
4. The method of claim 3,
The amplifier unit,
A signal generating unit for generating a digital signal, an up-converting unit for upconverting the frequency from the signal generating unit to a commercial frequency band, and amplifying the converted signal from the up-converting unit, but two or more amplifying modules are connected to each other by the switching unit Includes an amplifier connected in parallel,
The up-converting unit,
The first band is the GPS band (1,160 MHz to 1,790 MHz), the second band is the ISM 2.4 GHz band (2,400 MHz to 2,483.5 MHz), and the third band is the ISM 5 GHz band (5,725 MHz to 5,825 MHz). ), an anti-drone jammer device detachable from a firearm that generates a broadband jammer signal and transmits it to the first and second antennas.

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