KR20190071634A - Portable anti-drone jamming system - Google Patents

Abstract

The present invention relates to a portable anti-drone RF disturbance system, portable, movable and capable of coping with intrusion of an unmanned aerial vehicle like an air raid drone, comprising: a facility unit (1000) generating, converting and amplifying a digital signal to transmit disturbance waves; and an antenna unit (2000) provided with a shoulder unit (2030) and a trigger unit (2020) starting to radiate the disturbance wave, a bracket unit (2500) coupled to the body, and a first antenna (2300) and second antenna (2400) receiving the disturbance waves from the facility unit to radiate the disturbance according to the operation of the trigger unit, wherein the first antenna and second antenna are provided with a first radome (2310) and second radome (2320) in a cylindrical shape holding an internal radiator structure and having a rear side coupled to the bracket unit, and with a fixation unit (2600) for maintaining a gap between the first radome and second radome.

Description

[0001] Portable anti-drone jamming system [0002]

More particularly, the present invention relates to a portable radio disturbing apparatus capable of coping with the intrusion of an unmanned airplane such as a drone that can be carried and moved and penetrates into the air.

 Recently, various types of drones have been developed and supplied to the public due to the development of the technology related to drones. 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 seen as a type of UAV, smaller and lighter than a military UAV, which means that detection is relatively difficult. With the spread of these drone, low-cost drone, a drone, has become a potential threat to commercial aviation facilities, essential infrastructure and confidential facilities and the military. That is, there is a possibility of misuse due to the combination of the drones' photographs and the image shooting equipment, which may be a threat to various security facilities and infrastructure. In fact, in Washington, there is a case where a hobbyist drunken man accidentally crashed into the White House and a security alert was issued. In France, police and the air force can shoot down a new size of drones to prepare for the appearance of drones in nuclear power plants. There is also a case that requested to develop a weapon. In Korea, there is a need for a so-called anti-drones defense facility that can prevent intrusion of airplanes into non-flying areas after a North Korean unmanned airplane crashes down the Cheong Wa Dae and Seoul city.

However, the development of equipment capable of effectively responding to the intrusion of unmanned aerial vehicles, such as drone, which is still receiving frequencies in the air in the domestic as well as in the world, is very limited.

On the other hand, a wireless communication network used for a drone or the like transmits a radio wave to the public so that information can be exchanged in various forms such as one-to-one, many-to-one, one-to-many and so on. Is referred to as wireless communication jamming.

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

The oscillation signal from the oscillation unit 10 is transmitted to the up-converter 40 via the buffer 30. [ The up-converter 40 up-converts the frequency of the oscillation signal to the frequency band of the radio communication device to be interrupted. In order to prevent the up-converter 40 from performing a free run when power is supplied to the power-on reset unit 20, the power-on reset unit 20 controls the up-converter 40 Reset.

However, this prior art radio disturbing apparatus operates in a predetermined fixed frequency band, is fixed for input of control power, and has a fixed antenna, so that the equipment is bulky and the mobility is remarkably deteriorated, Because it is difficult to cope with the frequency, it is unreasonable to apply it to unmanned aerial vehicles such as drones capable of airborne penetration.

 Disclosure of the Invention The present invention has been made to overcome the above problems of the prior art, and it is an object of the present invention to provide an anti-drones capable of coping with various RF bands while having mobility and portability, An object of the present invention is to provide an RF disturbance device.

According to an aspect of the present invention, there is provided a digital signal processing apparatus including a signal generation unit for generating a digital signal, an up-conversion unit for up-converting the frequency from the signal generation unit to a common frequency band, (1000) having an amplification unit in which a plurality of amplification modules are connected in parallel to each other by a switching unit; And a trunnion 2020 for initiating disturbance radio wave radiation with the stabbing portion 2030 and a bracket portion 2500 coupled to the body. And an antenna unit 2000 having a first antenna 2300 and a second antenna 2400 which receive and radiate according to an operation of rejecting a tree, and the antenna unit includes a plurality of amplification modules connected in parallel, And a control and display unit for controlling the switching unit to select the distance or the output unit so that the output can be adjusted corresponding to the distance of the obstacle.

In an embodiment, the body may include a grip handle 2010 which can be gripped, and the bracket may include a grip handle 2510 for gripping and aiming.

The first antenna and the second antenna may include a cylindrical first radome 2310 and a second radome 2410 which receive the inner radiator structure and are fastened to the bracket portion from the rear side, (1,160 MHz to 1,790 MHz), which is a first band, and ISM 2.4, which is a steering frequency, as a second band. It is desirable to generate a wideband disturbance propagation signal for the GHz band (2,400 MHz to 2,483.5 MHz) and the ISM 5 GHz band (5,725 MHz to 5,825 MHz), which is the image transmission frequency, as the third band.

The fastening portion may be formed with a fastening slit having an elongated shape in the radial direction so that each support portion can independently move in the radial direction.

The body includes a gripping part 2010 which can be gripped, and the bracket part has a gripping part 2510 capable of gripping and aiming, and at least one of the first antenna and the second antenna is provided with a gripping part A plurality of support portions coupled to the plate portion and a plurality of fastening portions formed in front of the plate portion and narrowed toward each other as they are moved forward; a plurality of dipole radiating elements protruding from one another orthogonally to the respective support portions; And a front connecting portion for interconnecting the supporting portions of the front end portion on the front end side.

According to the present invention, the commercialized GPS frequency, remote control frequency, and image transmission frequency band can be effectively blocked, thereby making it impossible to remotely control navigation through the air and images through the air, thereby effectively responding to situations of infiltration of the UAV. As a result, it can cope with threats of bombing terrorism against major national facilities such as nuclear power plants and airports, illegal shooting of major national facilities, terrorist threats of VIP personnel, threats of terrorism in stadiums or densely populated areas, It is possible to cope with irrelevant use in the non-flying area as well as to advantageously prevent a collision with a person or a facility in advance.

At this time, since it is possible to secure the portability and to flexibly adapt to the distance to the object to be blocked and to manage the transmission power, the required power is minimized and operated, thereby improving not only the mobility but also the reliability in use.

In addition, by radiating a signal having a dual polarization structure, it is possible to actively cope with changes in the amplitude and phase of the steering signal due to the fading phenomenon occurring in the space, and the jamming efficiency is maximized.

1 is a block diagram showing a radio disturbing device of the prior art.
2 is a block diagram of a portable anti-drone RF disturbing apparatus of the present invention.
3 is a perspective view of an embodiment of an antenna structure in a portable anti-drone RF disturbing apparatus of the present invention.
4 and 5 are perspective views illustrating an embodiment of a first antenna in a portable anti-drone RF disturbing apparatus of the present invention.
6 is a perspective view showing an embodiment of a second antenna in the portable anti-drone RF disturbing apparatus of the present invention.
FIG. 7 is a block diagram for explaining the structure of an equipment part in a portable anti-drone RF disturbing apparatus of the present invention.
8 is a block diagram illustrating an amplification unit in a portable anti-drone RF disturbance apparatus of the present invention.
9 is a block diagram showing a signal generator in the portable anti-drone RF disturbance apparatus of the present invention.
10 is a block diagram showing an up-conversion unit in the portable anti-drone RF disturbance apparatus of the present invention.
11 is a diagram illustrating an embodiment of the operation of the control and display unit in the portable anti-drone RF disturbance apparatus of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a portable anti-drone RF disturbing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything.

In the following description, when a part is referred to as being 'connected' to another part, it includes not only a direct connection but also a case where another part or device is connected in between. In addition, when a part is referred to as including an element, it is to be understood that the element may include other elements, not the exclusion of any other element, unless specifically stated otherwise.

The present invention basically includes an equipment unit for generating a digital signal, converting and amplifying a digital signal to transmit a disturbance radio wave, a device for receiving a disturbance radio wave from the equipment unit, 1 < / RTI > antenna and a second antenna for transmitting disturbance radio waves in a GPS and 2.4 GHz band.

In the present invention, the antenna unit is disposed at the position of the serial line and is configured in the form of a rifle having one or more antennas and a handgrip for transmitting radio waves. However, if the antenna unit is portable, The present invention is not limited to the drawings and description of FIG. Basically, the antenna unit is provided with an antenna, a control and a display unit, and devices such as a signal generating unit, an up-converting unit, an amplifying unit, a filter unit, a controller unit, However, it goes without saying that any one or more of the configurations may be mutually substituted or additionally arranged. This configuration will be described later.

2 is a block diagram of a portable anti-drone RF disturbing apparatus of the present invention.

The first antenna 2300 and the second antenna 2400 are configured in the form of a serial array in the antenna unit and the signal generator 1100, the up-converter 1200, the amplifier 1300, and the power supply unit 1600 And may be configured in the equipment unit 1000. The signal generating unit 1100, the up-converting unit 1200, the amplifying unit 1300, and the power supply unit 1600 will be described later.

At this time, it is preferable that the antenna unit 2000 is formed in the form of a rifle so that the antenna unit 2000 can be attached and sighted. In the illustrated example, the first antenna 2300 and the second antenna 2400, And a trunnion 2020 that operates the output of the disturbance radio waves. The trunnion 2020 may include a receiving portion 2030 that can be attached to the body, a rear handle portion 2010 that is gripped by one hand, and a tree rejection portion 2020 that operates the output of the disturbing radio wave.

With reference to the state illustrated in the description of the present invention, the placement direction of the holding portion 2030 with respect to the positions of the antennas with respect to the longitudinal direction of the antenna unit 2000 is defined as the rear direction and the opposite direction is defined as the forward direction.

An aiming unit 2040 is provided at the upper end of the body (not shown) having the tree rejection unit 2020 connecting the respective antennas and the attachment unit 2030 and capable of aiming the airborne equipment such as a drone with the naked eye . In addition, the aiming unit 2040 may measure and display the distance to the object to be blocked through an optical measuring unit using a laser or an infrared ray.

The first antenna 2300 and the second antenna 2400 function to block the radio control frequency, wake-up frequency, and / or image transmission frequency of the dron operating in the air by transmitting radio waves for a predetermined band, respectively Therefore, the beam width is formed within 20 degrees so that the directivity is excellent and the influence to other positions is minimized, and the disturbing radio waves can be transmitted by effectively directing the object to be located at a distance.

The first antenna 2300 and the second antenna 2400 may have an outward shape of a long row in a longitudinal direction so as to have a predetermined directivity, and a directional broadband dipole antenna may be provided therein. Specific embodiments will be described later in this regard.

The first antenna 2300 and the second antenna 2400 may be coupled to the body where the holding portion 2030 is fixed by the bracket portion 2500 and the bracket portion 2500 is fixed to the body, The first antenna 2300 and the second antenna 2400 may be detachable from the body.

The equipment unit 1000 may be configured as a portable type box. It is needless to say that some or all of the structures stored in the equipment unit 1000 may be integrally provided in the antenna unit.

Meanwhile, since it is necessary to efficiently manage power in order to enhance portability, and since it is necessary to have an effective transmission output corresponding to the distance of a shielding object such as a drone to be aimed, The module will be selected and activated. Therefore, in order to control the output value according to the distance, the control and display unit 2100 may be disposed on a part of the body or the equipment unit 1000.

The control and display unit 2100 may be disposed adjacent to the tree rejection unit 2020 in consideration of the convenience of operation, and is preferably formed in the form of a dial so that the set value can be adjusted. However, the control and display unit 2100 is not limited thereto.

Also, the control and display unit 2100 may include a light emitting unit such as an LED lamp or an LCD panel, which can confirm the operation state. The function of controlling or indicating the output may be optional or additional.

3 is a perspective view of an embodiment of an antenna structure in a portable anti-drone RF disturbing apparatus of the present invention.

The first antenna 2300 and the second antenna 2400 are supported by the bracket 2500 and electrically and mechanically connected to the body where the coupling 2030 is disposed at the connection 2520 of the bracket 2500 Lt; / RTI >

The bracket portion 2500 supports the rear side of the first antenna 2300 and the second antenna 2400. Each of the brackets 2500 protects an internal element or structure in consideration of the situation that the antenna is always exposed to the outside It is preferable that the appearance is formed by the radome structure. The first radome 2310 forming the outer surface of the first antenna 2300 and the second radome 2410 forming the outer surface of the second antenna 2400 may be combined with the bracket portion 2500. [ At this time, the arrangement, size and shape of the first antenna 2300 and the second antenna 2400 are optional.

The first radome 2310 and the second radome 2410 may be formed in a cylindrical shape having a closed front side and accommodate a radiator in the form of a device or a pattern and a support thereof in the longitudinal direction. In this case, impact or deformation may be generated between the radar and the radome inside. In order to prevent the antenna radar structure, a filler such as foam is injected into the radome So that it can perform a fixed function.

The first radome 2310 and the second radome 2410 may be fastened and fixed to the bracket 2500. The first antenna 2300 and the second antenna 2400 may be elongated in the longitudinal direction There is a risk of deformation. In consideration of this, it is preferable to add a fixing portion 2600 between the first radome 2310 and the second radome 2410 to fix the interval therebetween. The fixing part 2600 may be formed to enclose the outer surfaces of the first and second radars 2310 and 2410 and may have an insertion port (not shown) corresponding to the outer circumferential surface of the radome .

A plurality of ribs 2301 protruding in the outer circumferential direction from the first radome 2310 and the second radome 2410 may be formed adjacent to the fastening portions of the brackets 2500 with respect to the radomes It is preferable that the ribs 2301 are formed in the circumferential direction, and that the widths of the ribs 2301 are larger toward the bracket portion 2500 and narrower toward the front side.

Meanwhile, a connection portion 2520 for connection with the body may be disposed on the rear side of the bracket portion 2500, and a collar knob 2510 capable of gripping the lower portion may be provided. 2, since the length of the antennas is comparatively long and the weight is difficult to be grasped by the rear handle 2010, precise aiming is difficult and the aiming knob 2510 is attached to the bracket 2500 If deployed, aiming at the correct position will be possible. The length of the antennas may be selected by a gain value of a disturbance radio wave to be described later.

However, the shapes, sizes, and functions of the first antenna 2300 and the second antenna 2400 described in the present invention may be replaced with each other, or some structures may be selectively applied.

4 and 5 are perspective views illustrating an embodiment of a first antenna in a portable anti-drone RF disturbing apparatus of the present invention.

The first antenna 2300 includes a plate portion 2320 coupled to the first radome 2310 and fastened to the bracket portion 2500, a plurality of supports 2330 connected to the front side of the plate portion 2320, And a plurality of dipole radiating elements 2331 protruding in the orthogonal direction from the support portions 2330.

The plate portion 2320 may have a disk shape and the terminal portion 2322 may receive the signal from the passage equipment unit 1000 inside the bracket portion 2500 at the rear side. The plate portion 2320 is provided with a plurality of notches (not shown) penetrating in the front-rear direction so that the fastening member such as a bolt can be coupled to the first radome 2310 and the bracket portion 2500.

As a preferred embodiment, the support portions 2330 may be arranged at equal intervals in the circumferential direction of the plate portion 2320, and the specific structure thereof will be described in detail with reference to FIG.

The fastening portions 2321 may be arranged in a cross shape on the front side of the plate portion 2320 and the fastening portions 2321 may be formed in a plate shape in which the fastening portions 2321 are orthogonal to the plate portions 2320 and fastening slits 2323 are formed Lt; / RTI >

The support portions 2330 are connected to each other at the fastening portions 2321 and have a conical shape as a whole and are spaced closer to each other as they go forward. The fastening slits 2323 of the fastening portions 2321 can move the fastening portions of the respective supporting portions 2330 in the radial direction. A through hole through which the fastening member (not shown) can be inserted through the fastening slit 2323 may be formed on the rear end side of the support portion 2330.

The supporting portions 2330 are as described above as they are adjacent to each other in the forward direction and contact each other at the front end so as to support the lateral load. At this time, it is preferable that a front connecting portion 2340 is added to provide a fixing force at the distal end, and the front connecting portion 2340 is coupled to the end side in a state where the supporting portions 2330 are in contact with each other. As shown, the front connecting portion 2340 may be formed in a cross shape when viewed from the front.

The dipole radiating elements 2331 may be regularly arranged in a protruding direction orthogonally to any one of the quadrangular planes on the respective supporting portions 2330. In view of spatial efficiency, The dipole radiating elements 2331 protruding from the dipole radiating elements 2331 of the adjacent supporting portions 2330 may be disposed to cross each other in such a manner that they are disposed between the front and rear spacings of the dipole radiating elements 2331 of the adjacent supporting portions 2330.

As described above, the supporting portions 2330 are arranged in a rectangular shape, and are fixed to the plate portion 2320 so as to be adjustable in distance from the rear, are mutually contacted at the front side and fixed by the front connecting portion 2340, It will be possible to have a certain fixing force in a long shape in the longitudinal direction. In addition, the dipole radiating elements 2331 can have efficient space utilization, and the frequency transmission efficiency and directionality can be maximized.

6 is a perspective view showing an embodiment of a second antenna in the portable anti-drone RF disturbing apparatus of the present invention.

The second plate portion 2420 functions to be fastened to the second radome 2410 and the bracket portion 2500 and a description overlapping with the plate portion 2320 of the first antenna 2300 will be omitted.

Considering the frequency characteristics, the body portion 2430 of the second antenna 2400 may have a plate-like substrate shape, and a pattern portion 2431 for disturbing radio wave radiation may be formed two-dimensionally. Various known configurations can be applied to such a radiating structure.

In the present invention, since the antenna unit 2000 has directivity and each antenna is formed long in the longitudinal direction, the antenna unit 2000 may be deflected toward the distal end, leading to a problem of efficiency deterioration. It is preferable that the portion 2430 is formed in such a shape that the width becomes narrower toward the front.

Here, the structures of the first antenna 2300 and the second antenna 2400 may be replaced with each other, or additionally or interchangeably, and may be adopted in consideration of the propagation characteristics and the structural robustness.

The filling material such as a foaming material can be injected and filled so as to make the above-described structure more robust inside the radome. The filling material is a resin material, There will be.

FIG. 7 is a block diagram for explaining the structure of an equipment part in a portable anti-drone RF disturbing apparatus of the present invention.

The portable anti-drone RF disturbing apparatus of the present invention can transmit a disturbance radio wave or a jamming signal to a predetermined collimated region or position through an antenna unit.

The antenna unit 2000 basically radiates a predetermined RF signal to disturb the reception of the communication signal. However, if the concept of the present invention is applied, the frequency band to be disturbed may vary Of course, can be set.

It can be understood that the jamming signal applied to the present invention has a predetermined cut-off frequency band. For example, as a main example, a disturbance signal is generated and transmitted to an unmanned aerial vehicle in the public, and the signal is disabled. In the description of the present invention, the object to be blocked is basically an unmanned airplane, but it should not be understood that it excludes various radio transmission and / or reception devices such as a control signal transmitting / receiving device of a UAV or a portable communication device.

Also, if classified as the function of the frequency to be blocked, it can be classified into the radio control frequency, the navigation frequency (GPS) frequency, and the image loss frequency.

For example, when transmitting a jamming signal to disable a drone, a frequency hopping method or a spread spectrum method may be applied to disable the remote controller transmitting / receiving module.

In this case, the frequency band that can be applied to neutralize the unmanned aerial vehicle of the public 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 To 5,825 MHz), and it is preferable that a broadband high-gain antenna at 1,570 MHz to 2.5 GHz is applied.

The GPS band includes an A band (1560 to 1605 MHz) including GPS L1 (1575.42 MHz), GLONASS L1 (1601.156 MHz) and a BeiDou B1 (1561.098 MHz) band, a GPS L2 (1227.6 MHz), a GPS L5 MHz), GLONASS L2 (1245.34MHz), GLONASS L3 (1201.7MHz), BeiDou B2 (1207.14MHz) and BeiDou B3 (1268.62MHz).

More preferably, a dual polarized antenna for simultaneously transmitting vertical and horizontal polarized waves as the wideband high gain antenna may be considered. Also, it is desirable that the gain and structure are 10 dBi or more, and that the 3 dB beam width of the antenna is limited to 20 degrees or less in consideration of the accuracy of transmission to the air and transmission of remote radio waves.

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

The portable anti-drone RF disturbance apparatus of the present invention includes the antenna unit, the signal generation unit 1100, the up-conversion unit 1200, the amplification unit 1300, the filter unit 1400, and the controller unit 1700 And may include a power supply unit 1600 connected to the battery unit 1610 in consideration of portability. It is also possible to consider that the power supply unit 1600 uses external power of the site in some cases.

The signal generator 1100 may generate a radio wave blocking signal, and may sweep two or more signals to IF (Intermediate Frequency) bands as described later. The frequency band may be selected by the user and input through the controller unit 1700.

At this time, one or more DDS (Direct Digital Synthesizer) and / or FPGA (Field Programmable Gate Array) may be selected and combined for generating two or more signals as described above. 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 a separate signal generator for generating independent signals for each channel. In some cases, And the individual signal generating unit corresponding to the individual signal generating units. As described above, it is preferable that the band applied here is GPS and / or ISM 2.4 GHz band and / or ISM 5 GHz band.

The control power controlled by the controller unit 1700 may be supplied from a power supply unit 1600. The power supply unit 1600 may be formed of a power supply unit (PSU). In this case, And may be combined with the battery unit 1610 for supply.

As another example, the power supply unit 1600 may receive a predetermined voltage (e.g., 220 V) of a predetermined voltage from an external source and supply the power to the signal generation unit 1100, the up-conversion unit 1200, the amplification unit 1300 (DC) power source, for example. When the power supply unit is connected to the power supply, it can be combined with an uninterruptible power supply (UPS).

It is preferable that the power supply unit 1600 is disposed together with the cooling unit in order to suppress the performance deterioration due to the overheating phenomenon. Further, the power supply unit 1600 can detect the heat or the overcurrent and inform the user that the heat or the overcurrent has occurred . To this end, the portable anti-drone RF disturbing apparatus of the present invention further includes a notification unit (not shown). When the power supply unit detects that a failure has occurred, the user can visually or audibly It may generate an alert.

The up converter 1200 receives the predetermined DC power from the power supply unit 1600 and up converts the IF band signal generated by the signal generator 1100 into an RF band which is a protection frequency band. The up-converter 1200 functions to up-convert the IF frequency generated by the signal generator 1100 to 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 amplification unit 1300 receives the predetermined DC power from the power supply unit 1600 and amplifies the signal output from the up-conversion unit 1200. The power level of the signal output from the amplification section 1300 may have a power level that is greater than the power level for the signal of the band to be disturbed.

In the present invention, power management is performed for portability, but an unmanned aircraft such as a drone, which is to be moved, must be adjusted for aiming and distance. Therefore, in order to satisfy such a complex requirement, Can be operated in combination. The operation of the amplification module can be controlled by a control and display unit provided in the antenna unit, which will be described later.

The filter unit 1400 suppresses spurious signals in an undesired band from among the signals output from the amplification unit 300, selects only the in-band signals, combines them with the jamming signal, and outputs the combined signals to the antenna unit 1500 Output. In this filter unit 1400, it is possible to reduce the influence due to the interference on the adjacent frequency due to the output frequency of the amplifier unit 1300.

The controller unit 1700 can select the input for the selection when the frequency band for which disturbance is desired is selected. However, in the present invention, the controller 1700 may set the frequency bands of the GPS and the ISM as the Input Frequency Range in advance and combine them into a wide band to transmit them as a single output to the antenna will be.

With the configuration of the portable anti-drone RF disturbance device of the present invention, it is necessary to control the transmission power which is capable of neutralizing the most efficient unmanned aerial vehicle. In order to calculate the transmission power, the following formula is applied.

Path Loss by Frequency (400m):

Jamming signal output of 400m point:

As described above, it is preferable that the power level of the signal output from the amplification unit 1300 is higher than the power level of the signal of the band to be disturbed, and it is required to be 18 dB higher than the reception level of the original signal It is confirmed that it can effectively block the radio wave.

Based on this, the transmission output 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) Drones 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

The controller unit 1700 may be connected to the monitoring and operating unit 1710 in a wired or wireless manner to monitor a predetermined state and to control the functions of the controller 1700. The controller unit 1700 may include an output, a remaining battery level, a PLL alarm, a VSWR alarm, It can perform monitoring function of output, on / off of output, adjustment of gain value, control function of reset of FPGA, check of alarm status, check of output status, According to this configuration, the system specification of the present invention is determined as follows.

Item standard Remarks Jamming signal frequency

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

GPS 100 Watt ISM 2.4G 100 Watt control ISM 5G 50 Watt video Band flatness Less than 3dB per service band Include environment Output change Less than 3dB per service band Include environment 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-mentioned standard corresponds to a drones, and at the same time, it is intended to ensure portability and mobility and is different from a general fixed type radio disturbing device. Block diagram.

In the portable anti-drone RF disturbing apparatus, a plurality of amplification modules 300a, 300b,... Are connected in parallel to the amplification unit 1300 for controlling the output distance.

Each of the amplification modules 300a includes a driving amplifier 1320 for amplifying an input signal input from the up-converter 1200 and a main amplifier 1330 for removing and amplifying the distortion signal And the configuration of such an amplifier can be made up of a combination of various known amplification elements.

The input side coupler 1310 provided on the input side may be connected to the input side coupler 1310 through the up-conversion unit 1200. The input side coupler 1310 may include a coupler and a circulator, And the output side coupler 1340 provided on the output side can function to detect the amplified signal by the output detection unit 1341 . In addition, the circulator 1350 may be provided at the distal end to perform a function of removing additional loss in the RF output path, and may detect the reflection signal VSWR in the reflection signal detection unit 1351.

It should be noted that according to the configuration of the detectors 1311, 1341, and 1351, it is possible to overcome the limitations of the compact portable equipment and to implement the protection function of the equipment by over-power.

Each of the amplification modules 300a ... may be connected in parallel and have a predetermined output in the antenna unit 1500 as a selected combination. For example, when each of the amplification modules 300a is set to 20W . At this time, it is possible to have 20W and 45% efficiency in the first band (1,160 ~ 1,790MHz) and 20W and 45% efficiency in the second band (2,400 ~ 2,483.5MHz) 5,725 to 5,825 MHz), it is possible to have an efficiency of 20 W and 35%. However, the output is only an example and is not necessarily limited to the example described.

The combination and selection of such amplification modules can be accomplished through predetermined switching, which will be described later.

In the present invention, the amplification modules are accumulated in parallel and the number of such arrangements is optional. In the case of the prior art amplifier, since the interference amplification occurs within the adjacent frequency, the output of the amplifier is limited. In the present invention, when a parallel connection is made and combined, a function of preventing a signal interference can be simultaneously achieved .

FIG. 9 is a block diagram showing a signal generator in the portable anti-drone RF disturbance apparatus of the present invention, and FIG. 5 is a block diagram showing an up-conversion unit in the portable anti-drone RF disturbance apparatus of the present invention.

The signal generator 1100 can be understood as a digital signal generator for generating a radio wave shutoff signal and includes a CPU 1110, an FPGA 1120, a DDS 1130, As shown in FIG. Various known configurations may be applied in this regard, so a detailed description thereof will be omitted.

At this time, the signal generating unit 1100 may include a sweep speed adjusting function (6.67ns to 1us adjustable), a sweep step adjusting function (5KHz to 1MHz), a bandwidth setting function, a FPGA alarm Alarm function, an FPGA reset function, and the like.

The up-converter 1200 functions to convert the IF signal generated by the signal generator 1100 into a radio frequency cutoff frequency. The up-converter 1200 may include a plurality of BPFs, an IF mixer, and an RF mixer.

The up-converter 1200 has a frequency conversion function using a wide-band mixer, an output control function for a near target, and interference minimization using a filter.

At this time, the up-converter 1200 may include a first LO and a second LO (not shown), and may generate a wideband jamming signal by varying the second LO (2nd LO) 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 . However, the combination for forming the band or the wide band is not necessarily limited to the above example.

11 is a diagram illustrating an embodiment of the operation of the control and display unit in the portable anti-drone RF disturbance apparatus of the present invention.

The control and display unit 2100 provided in the embodiment of the present invention is provided in the antenna unit and the control and display unit 2100 controls the operation of the amplification modules 300a, 300b, 300c, ... of the amplification unit 1300 It is possible to control the switching unit 1301 to select it.

For example, when controlling the switching unit 1301 so that only one of the amplifying modules 300a is operated, it is possible to correspond to a distance of 400m, and such a distance unit or an output unit may be displayed on the control and display unit 2100 . In accordance with the adjustment of the control and display unit 2100, the switching unit may correspond to the distance of the object to be blocked by connecting the amplification modules connected in parallel and increasing the gain value. The number of the amplification modules connected in parallel according to the control of the dial type and the operation of the display part is increased, so that the output can be increased according to the distance.

The control and display unit 2100 may control the switching unit 1301 to control the output of the amplifying unit according to the distance, There will be.

The application examples of the configuration of the above embodiments can be used mutually, additionally, or alternately.

The portable anti-drone RF disturbance device according to the present invention effectively blocks the commercialized remote control frequency and the image transmission frequency band, thereby making it impossible to remotely control the wake-up operation of the air and the image, thereby effectively preventing the infiltration of unmanned aircraft Can respond. As a result, it can cope with threats of bombing terrorism against major national facilities such as nuclear power plants and airports, illegal shooting of major national facilities, terrorist threats of VIP personnel, threats of terrorism in stadiums or densely populated areas, It is possible to cope with indiscreet use in the no-fly zone as well as to prevent the collision with a person or a facility in advance.

At this time, since it is possible to secure the portability and to flexibly adapt to the distance to the object to be blocked and to manage the transmission power, the required power can be minimized and operated, thereby improving not only the mobility but also the reliability in use.

In the foregoing, 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 content of the following claims.

1000 ... equipment part 1100 ... signal generating part
1120 ... FPGA 1130 ... DDS
1200 up-conversion unit 1300 amplification unit
1301 ... switching part 1310 ... input side coupler
1311 ... input detection section 1320 ... drive amplification section
1330 ... main amplifying unit 1340 ... output side coupler
1341 ... output detection unit 1350 ... circulator
1351 ... reflected signal detecting section 1400 ... filter section
1600 power supply unit 1610 battery unit
1700 ... controller section 1710 ... monitoring and control section
2000 ... antenna part 2010 ... rear handle part
2020 ... tree rejection 2030 ...
2040 ... aiming unit 2100 ... control and display unit
2300 ... first antenna 2301 ... rear rib
2310 ... first radome 2320 ... plate portion
2321 ... fastening portion 2322 ... terminal portion
2323 ... fastening slit 2330 ... support
2331 ... dipole radiating element 2340 ... front connection
2400 ... second antenna 2410 ... second radome
2420 ... second plate portion 2421 ... slit portion
2430 ... body part 2431 ... pattern part
2440 ... second fastening part 2500 ... bracket part
2510 ... aiming handle portion 2520 ... connecting portion
2600 ... fixed portion

Claims (3)

A signal generation unit for generating a digital signal; an up-conversion unit for up-converting the frequency from the signal generation unit to a common frequency band; and a demodulation unit for amplifying the converted signal from the up-conversion unit, An equipment unit 1000 having an amplification unit connected in parallel; And
A bracket part 2500 fixed to the bracket part and receiving a disturbance radio wave from the equipment part; and a bracket part 2500 coupled to the body, And an antenna unit 2000 including a first antenna 2300 and a second antenna 2400 that radiate according to the operation of the tree rejection,
The antenna unit includes:
A control unit that controls a switching unit that selects an operation of a plurality of amplification modules connected in parallel and displays a distance or an output unit so that the output can be adjusted corresponding to the distance of the obstacle, Anti-drones RF disturbance device.
The method according to claim 1,
The first antenna and the second antenna may include a cylindrical first radome 2310 and a second radome 2410 which receive the inner radiator structure and are fastened to the bracket portion at the rear side, And a fixing portion 2600 for connecting the outer surfaces of the radome to maintain the gap,
The up-conversion unit includes a GPS band (1,160 MHz to 1,790 MHz) as the first band, an ISM 2.4 GHz band (2,400 MHz to 2,483.5 MHz) as the second frequency band and a ISM 5 GHz band 5,725MHz to 5,825MHz), which is a portable anti-drone RF disturbance device.
3. The method of claim 2,
The body has a rear grip part 2010 which can be gripped,
The bracket portion includes a collar knob portion 2510 capable of gripping and aiming,
Wherein at least one of the first antenna and the second antenna comprises:
A plurality of support portions coupled to the plate portion and a plurality of fastening portions formed in front of the plate portion and narrowed toward each other as they are moved forward; a plurality of dipole radiating elements protruding from one another orthogonally to the respective support portions; And a front connecting portion for interconnecting the supporting portions of the anti-drones RF at the front end side.

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