KR20180094611A - Portable anti-drone jamming system - Google Patents

Abstract

The present invention relates to a portable anti-drone jamming system capable of coping with the intrusion of an unmanned airplane such as a drone that can be carried and moved and penetrates in the air. The portable anti-drone jamming system includes a signal generating part for generating a digital signal, an up-conversion part that performs up-conversion on the frequency of the signal generating part with a commercial frequency band, an amplifying part for amplifying the converted signal from the up-conversion part and connecting two or more amplification modules in parallel by a switching part, and a transmitting part provided in a supportable portable antenna part and transmitting a filtered amplified signal to the air. The portable antenna part may include an output control part for controlling switching between the amplification modules according to a distance from a blocking object and adjusting the intensity of a signal transmitted from the transmitting part.

Description

PORTABLE ANTI-DRONE JAMMING SYSTEM [0002]

More particularly, the present invention relates to a portable anti-drone jamming system capable of coping with the intrusion of an unmanned airplane such as a drone that can be carried and moved while penetrating 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.

 SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned problems of the prior art, and it is an object of the present invention to provide a portable anti-drone jamming system capable of flexibly coping with various inflows of various unmanned airplanes, .

According to an aspect of the present invention, there is provided a signal processing apparatus including: a signal generation unit that generates a digital signal; an up-conversion unit that up-converts the frequency from the signal generation unit to a common frequency band; And a transmitting unit provided in the amplifying unit and the portable antenna unit that can be grasped and connected to each other in parallel by the switching unit and transmitting the filtered amplified signal to the public by the switching unit, And an output controller for controlling the switching between the amplifying modules according to the output signal from the transmitter to adjust the transmission intensity from the transmitter. Therefore, it is possible to carry out control of the output in correspondence with the distance relation with the unmanned aerial vehicle of the public.

In a preferred embodiment, the portable antenna unit includes a body portion, a grip portion to be gripped, a bore portion to aim at the object to be blocked, and a tree rejection portion disposed adjacent to the handle portion to control an output from the transmission portion, And the output section may be arranged adjacent to the tree rejection.

Also, the output control unit may be in the form of a dial having output units according to the distance, and may increase the number of amplification modules connected in parallel through the switching unit as the output unit increases.

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 band and a ISM 5 GHz Band (5,725 MHz to 5,825 MHz), it is possible to generate a wideband jamming signal by varying the secondary LO.

Preferably, the transmitter is a wideband antenna having a transmission band of 1,160 MHz to 5,825 MHz and a beam width of 20 degrees or less.

Preferably, the amplifying unit has a power level higher than the original signal receiving level of the object to be blocked by 18 dB.

The amplifying unit includes an input detecting unit for detecting an input power from an input-side coupler disposed at a front end of the driving amplifying unit and the main amplifying unit, an output detecting unit for detecting output power from an output-side coupler disposed at the rear end, a reflection signal VSWR from the circulator, And a reflected signal detecting unit for detecting the reflected signal.

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.

1 is a block diagram showing a radio disturbing device of the prior art.
2 is a block diagram illustrating a portable anti-drone jamming system of the present invention.
3 is a block diagram illustrating an amplifier in a portable anti-drone jamming system of the present invention.
4 is a block diagram illustrating a signal generator in the portable anti-drone jamming system of the present invention.
5 is a block diagram illustrating an up-conversion unit in the portable anti-drone jamming system of the present invention.
6 is a block diagram of a portable anti-drone jamming system according to a preferred embodiment of the present invention.
7 is a block diagram illustrating the operation of the output controller in the portable anti-drone jamming system of the present invention.

Hereinafter, a portable anti-drone jamming system 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 comprises: a signal generation unit for generating a digital signal; an up-conversion unit for converting a frequency from the signal generation unit; and a demodulation unit for amplifying the converted signal from the up- Wherein the portable antenna unit controls the switching between the amplification modules according to the distance from the object to be blocked so that the intensity of the signal transmitted from the portable antenna unit A portable anti-drone jamming system is provided.

In the present invention, the portable antenna unit is arranged at the position of the row of the strings, and is configured in the form of a rifle having a transmitting portion for transmitting radio waves and a handgrip. However, if the portable antenna portion is portable, The present invention is not limited to the drawings and description of FIG. Basically, the portable antenna unit is provided with a transmitting unit and an output controlling unit, and a portable equipment unit connected with a predetermined cable is provided with a signal generating unit, an up conversion unit, an amplifying unit, a filter unit, a controller unit, However, it is needless to say 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 illustrating a portable anti-drone jamming system of the present invention.

The portable anti-drone jamming system of the present invention can transmit a disturbance radio wave or a jamming signal to a predetermined target area or position through a transmitter 1500 provided in a portable antenna unit.

If the concept of the present invention is applied, a frequency band to be disturbed may be a frequency band that is disturbed, It goes without saying that it can be variously 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.

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

The transmission portion 1500 may be configured in the form of a series of rifles that are provided in the portable antenna portion and are easy to move and aim, and a detailed description related to this type will be described later.

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, configurations that are connected to the portable antenna unit and are accommodated in a portable equipment unit to transmit a radio signal having a predetermined strength will be described in detail.

The portable anti-drone jamming system of the present invention includes the portable 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 jamming system of the present invention further includes a notification unit (not shown), so that when the power supply unit detects that a failure has occurred, a visual or audible notification Lt; / RTI >

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 an output control unit provided in the portable antenna unit, which will be described later.

The filter unit 1400 suppresses spurious signals in an undesired band among the signals output from the amplifying unit 300, selects only the in-band signals, combines them with the jamming signal, and outputs the combined signal to the transmitting 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.

The configuration of the portable anti-drone jamming system of the present invention controls the transmission power that can disable the most efficient unmanned aerial vehicle. To calculate the transmission power, the following equation 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, There will be.

With this configuration, the system specification of the present invention was 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 is different from a general fixed type radio disturbing device in order to support portability and mobility while supporting the drone.

3 is a block diagram illustrating an amplifier in a portable anti-drone jamming system of the present invention.

In the portable anti-drone jamming system, the amplification unit 1300 includes a plurality of amplification modules 300a, 300b,... Connected in parallel 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 transmitter 1500 as a selected combination. For example, when each amplification module 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. 4 is a block diagram showing a signal generating unit in the portable anti-drone jamming system of the present invention, and FIG. 5 is a block diagram showing an up-converting unit in the portable anti-drone jamming system 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.

6 is a block diagram of a portable anti-drone jamming system according to a preferred embodiment of the present invention.

The signal generating unit 1100, the up-converting unit 1200, the amplifying unit 1300, and the power supply unit 1600 are connected to the portable equipment unit 2200 As described above.

In this case, the portable antenna unit is preferably configured in the form of a rifle so that it can be hung and aimed. In the illustrated example, the portable antenna unit includes a transmitting unit 1500 formed on the front side, a toe- A grip part 2010 to be gripped, and a tree rejection part 2020 for activating the output of the disturbance radio wave.

An upper part of a body (not shown in the figure) having the trunnion 2020 connected to the transmitter part 1500 and the stern part 2030 is provided with a sighting part 2040 capable of sighting with respect to the airborne penetrating equipment such as a drone May be provided. 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.

As described above, the beam width of the transmitting portion 1500 is formed within 20 degrees, and the disturbing radio waves can be transmitted by effectively directing the obstructed object at a long distance. The transmitting unit may have a shape of a long row of lengthwise columns so as to have a predetermined directivity. The transmitting unit may include a directional yagi antenna, and the yagi antenna may have a vertical and horizontal directivity, Lt; / RTI > Such a Yagi antenna may be considered to be a case where the cylindrical heat is removed and exposed to the outside.

The portable equipment part 2200 may be configured as a portable type box. A part or all of the configuration stored in the portable equipment part 2200 may be provided in the portable antenna part, Of course.

In order to enhance the portability, it is necessary to efficiently manage the power. In addition, since it is necessary to have an effective transmission output corresponding to the distance of the object to be blocked, the amplification unit 1300 selects a plurality of amplification modules As described above. Therefore, in order to control the output value according to the distance, the output control unit 2100 may be disposed on a part of the body or the portable equipment unit 2200.

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

In addition, the portable antenna unit and / or the portable equipment unit 2200 may include a light emitting unit such as an LED lamp for confirming the operation status. For example, green indicates a standby state and red indicates a state of being emitted .

7 is a block diagram illustrating the operation of the output controller in the portable anti-drone jamming system of the present invention.

The output control unit 2100 shown in the embodiment of the present invention is provided in the portable antenna unit and the output control unit 2100 selects the operation of the amplification modules 300a, 300b, 300c, ... of the amplification unit 1300 The switching unit 1301 can be controlled.

For example, when controlling the switching unit 1301 so that only one of the amplification modules 300a is operated, the distance control unit 2100 may correspond to a distance of 400m, and the distance unit or the output unit may be displayed in the output control unit 2100. In accordance with the adjustment of the output control unit 2100, the switching unit may correspond to the distance of the object to be blocked by connecting the amplification modules connected in parallel to increase the gain value. The number of the amplification modules connected in parallel increases according to the operation of the dial-shaped output control unit, so that the output can be increased according to the distance.

In some cases, when the aiming unit 2040 performs aiming, the distance to the object to be blocked is automatically measured, and the output control unit 2100 may control the switching unit 1301 to control the output of the amplifying unit according to the distance will be.

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

The portable anti-drone jamming system according to the present invention effectively blocks the commercial remote control frequency and the image transmission frequency band, thereby making it impossible to remotely control the wake-up operation of the public and the image, thereby effectively coping with the infiltration of the unmanned airplane have. 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.

1100 ... signal generator 1110 ... CPU
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
1500 ... Foot bridge 1600 ... Power supply
1610 ... Battery part 1700 ... Controller part
1710 ... Monitoring and control section 2010 ... Handle section
2020 ... tree rejection 2030 ...
2040 ... aiming unit 2100 ... output control unit
2200 ... portable equipment department

Claims (7)

A signal generator for generating a digital signal;
An up-converting unit for up-converting the frequency from the signal generating unit into a commercial frequency band;
An amplification unit amplifying the converted signal from the up-conversion unit, wherein two or more amplification modules are connected in parallel by the switching unit; And
And a transmitting unit provided in the portable antenna unit capable of being grasped to transmit the filtered amplified signal to the public,
The portable antenna unit includes:
And an output controller for controlling switching between the amplification modules according to a distance from the object to be blocked to adjust the intensity of the signal from the transmitter.
The method according to claim 1,
The portable antenna unit includes:
And a trunnion which is disposed adjacent to the handle portion and controls an output from the transmitter portion, wherein the transmitter portion is configured in a spiral shape, and the output A portable antidron jamming system in which a control is disposed adjacent to a tree rejection.
3. The method of claim 2,
Wherein the output control unit comprises:
A portable anti-drone jamming system in which the output units according to distance are in the form of a marked dial and the number of amplification modules connected in parallel through the switching unit is increased as the output unit increases.
The method according to claim 1,
Wherein the up-
A second band, an ISM 2.4 GHz band (2,400 MHz to 2,483.5 MHz), and a third band, an ISM 5 GHz band (5,725 MHz to 5,825 MHz) ) Is a portable anti-drone jamming system that generates a broadband jamming signal by varying the second LO.
5. The method of claim 4,
Wherein,
A portable anti-drone jamming system with a broadband source antenna with a transmission bandwidth of 1,160 MHz to 5,825 MHz and a beam width of less than 20 degrees.
6. The method of claim 5,
Wherein,
A portable anti-drone jamming system with a power level 18dB above the original signal reception level of the obstructed object.
The method according to claim 1,
Wherein,
An output detecting section for detecting an output power from an output side coupler disposed at a rear stage, an input detecting section for detecting input power from an input side coupler disposed at a front end of the drive amplifying section and the main amplifying section, a reflection detecting section for detecting a reflection signal (VSWR) A portable anti-drone jamming system comprising a signal detector.

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