KR102125896B1 - Active phase array iff antenna having polygonal horn arrangement and identification of friend or foe apparatus for next destroyer having the same - Google Patents

Abstract

According to an embodiment of the present invention, an active phase array IFF antenna having poly-pyramidal column arrangement includes: an inquirer that transmits an inquiry signal to a target and receives a response signal from the target; a responder that receives an inquiry signal from the target and transmits a response signal to the received inquiry signal; an antenna unit including a single poly-pyramidal column antenna including a plurality of reflective plates arranged in a poly-pyramidal column form and a plurality of convection elements arranged on the reflective plates in rows in horizontal and vertical directions, wherein if electric power is fed to all the plurality of convection elements, an omnidirectional pattern, which covers the azimuth angle of the single poly-pyramidal column antenna by 360 degrees, is formed and electric power is fed to a plurality of convection elements included in the azimuth angle of 90 degrees of the single poly-pyramidal antenna among the plurality of convection elements and if an arbitrary vector value is applied, one of an oriented addition pattern and an oriented subtraction pattern of the single poly-pyramidal column antenna is formed, an inquiry signal of the inquirer is transmitted by using the omnidirectional pattern, the oriented addition pattern and the oriented subtraction pattern, a response signal is received from the target, an inquiry signal is received from the target, and the response signal of the responder is transmitted; and a feeding unit that feeds electric power to all the plurality of convection elements and feeds electric power to the plurality of convection elements included in the azimuth angle of 90 degrees of the single poly-pyramidal column antenna. Accordingly, space efficiency can be maximized.

Description

ACTIVE PHASE ARRAY IFF ANTENNA HAVING POLYGONAL HORN ARRANGEMENT AND IDENTIFICATION OF FRIEND OR FOE APPARATUS FOR NEXT DESTROYER HAVING THE SAME}

The present invention relates to an active phased array IFF antenna in the form of a polygonal truncated truncated cone and a PIA identification device for a next destroyer having the same, and more specifically, a polygonal truncated cone capable of forming both an omnidirectional pattern and a directional pattern with one antenna. The present invention relates to an array-type active phased array IFF antenna and a PIA identification device for a next destroyer having the same.

The PIA identification device plays a role of identifying whether the target is an allied or an enemy using an antenna that transmits and receives an electromagnetic wave signal.

That is, a question signal for determining whether a friend is friendly is transmitted to a moving target, and a response signal including code information suitable for the question signal is received, and a friend is identified.

For this PIA identification, the PIA identification device includes an interrogator 20 that transmits a question signal as shown in FIG. 1, and a transponder 30 that automatically transmits a response signal to the question signal. , It may include a processor 10 for receiving, processing and analyzing the response signal from the transponder 30.

The interrogator 20 transmits an interrogation signal through the directional antenna 40 which is directed to the target, receives a response signal from the target, and the transponder 30 receives an interrogation signal from the target through the omni-directional antenna 50. Receive and send a response signal to the target.

Conventional PIA identification device for the trap is used to separate the omnidirectional antenna 50 for the transponder 30 and the directional antenna 40 of the mechanical rotation method for the interrogator 20, two antennas 40 , 50) is the same frequency, it is better to increase the separation distance of the antenna to improve the isolation between antennas.

Therefore, there is a problem in that the space is occupied when installing an antenna on a ship with many spatial constraints, and the structure of the mast for antenna installation is complicated, resulting in a high RCS (Radar Cross Section) and an increase in the detection rate by the enemy radar.

In addition, the directional antenna of the mechanical rotation method has difficulty in maintenance due to corrosion by the seawater of the rotating part of the pedestal.

Korean Registered Patent Publication No. 10-1933978 (Publication date 2018.12.31.)

The present invention has been devised to solve this problem, and by forming both omni-directional patterns and directional patterns with one antenna, an active phased array IFF antenna in the form of a polygonal truncated cone to maximize the space efficiency of the ship and the same An object of the present invention is to provide a PIA identification device for a next destroyer.

Another object of the present invention is to arrange an active phase array IFF antenna in the form of a polygonal truncated cone to reduce the RCS and reduce the detectability by an enemy radar by arranging the antenna radiation elements in the form of a polygonal truncated cone, and for the next destroyer having the same In providing a PIA identification device.

According to an embodiment of the present invention, the active phased array IFF antenna in the form of a polygonal truncated trellis includes: an interrogator for transmitting a question signal and receiving a response signal from a target; A transponder receiving the interrogation signal from the target and transmitting a response signal to the interrogation signal received; It includes a single polygonal truncated antenna including a plurality of reflecting plates arranged in a polygonal truncated cone shape and a plurality of radiating elements arranged in rows in the horizontal and vertical directions on the reflecting plates, and feeding the entire number of radiating elements. When it is formed, an azimuth 360-degree omnidirectional pattern of the single polygonal truncated antenna is formed, and a plurality of radiation elements included in the azimuth 90 degrees of the single polygonal truncated antenna are fed from the plurality of radiated elements, and an arbitrary vector value is generated. When applied, forms one of the directional sum pattern and the directional difference pattern of the single polygonal truncated antenna, and transmits the interrogation signal of the interrogator using the omnidirectional pattern and the directional sum pattern and the directional difference pattern, and targets An antenna unit for receiving a response signal from, receiving a question signal from a target, and transmitting the response signal of the transponder; And a feeding unit that feeds all of the plurality of radiating elements and feeds a plurality of radiating elements included in an azimuth angle of 90 degrees of the single polygonal antenna. A plurality of radiating elements included in the azimuth angle 90 degrees to supply power to a plurality of radiating elements included in the azimuth angle 90 degrees of the single polygonal truncated antenna, and to enable beam steering in all directions of the single polygonal truncated antenna. Includes; sequentially, by sequentially selecting them to feed, the side surface of the single polygonal truncated antenna is characterized in that the beam direction of the antenna portion is directed upward and inclined at a certain angle to facilitate the identification of the aircraft.

The active phased array IFF antenna of the polygonal truncated truncated array type of the present invention and the PIA identification device for the next destroyer having the same, can form the omni-directional pattern and the directional pattern with one antenna, thereby maximizing the space efficiency of the ship. .

In addition, by arranging the radiating elements of the antenna in the form of a polygonal truncation, it is possible to reduce the RCS and lower the detectability by the enemy radar.

1 is a view schematically showing the configuration of a PIA identification device for a trap according to the prior art.
2 is a view schematically showing the configuration of a PIA identification device for the next destroyer according to an embodiment of the present invention.
3 is a view showing an exemplary configuration of an antenna unit applied to the present invention.
4 is a view showing an omnidirectional pattern formed in accordance with the present invention by way of example.
5 is a view showing an exemplary arrangement structure of a radiation element arranged in the form of a cone according to the present invention.
6 is an exemplary view showing a directional sum pattern formed according to the present invention.
7 is a view showing an directional difference (Difference) pattern formed in accordance with the present invention by way of example.
8 is a view exemplarily showing a beam directing direction formed according to the present invention.

For a detailed description of the present invention, which will be described later, reference is made to the accompanying drawings that illustrate, by way of example, specific embodiments in which the invention may be practiced. These examples are described in detail enough to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, the specific shapes, structures, and properties described herein can be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it should be understood that the location or placement of individual components within each disclosed embodiment can be changed without departing from the spirit and scope of the invention. Therefore, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention, if appropriately described, is limited only by the appended claims, along with all ranges equivalent to those claimed. In the drawings, similar reference numerals refer to the same or similar functions across various aspects.

Hereinafter, an active phase array IFF antenna in the form of a truncated cone according to a preferred embodiment of the present invention and a PIA identification device for a next destroyer having the same will be described in detail with reference to the accompanying drawings.

2 is a view schematically showing the configuration of a PIA identification device for the next destroyer according to an embodiment of the present invention.

As illustrated in FIG. 2, the PIA identification device 100 for the next destroyer according to an embodiment of the present invention includes a processor 110, an interrogator 120, a transponder 130, and an antenna unit 140 You can.

The processor 110 may process signals transmitted and received by the interrogator 120 and the transponder 130, and analyze the response signal of the target to determine whether the target is a friendly or an enemy.

The interrogator 120 may transmit a question signal for PIA identification to the target and receive a response signal (target response signal) from the target.

The responder 130 may receive a question signal (a target question signal) from the target, and transmit a response signal for PIA identification generated by the processor 110 to the target.

The antenna unit 140 forms an omnidirectional pattern and a directional pattern with one antenna to transmit the interrogation signal of the interrogator 120, receives a response signal from the target, receives an interrogation signal from the target, and responds The response signal of 130 may be transmitted.

As illustrated in FIG. 3, the antenna unit 140 may include a reflector 141, a plurality of radiation elements 143, and a power supply unit (not shown).

The reflector 141 is formed in a truncated cone shape to reflect the radio waves forward.

The plurality of radiation elements 143 are arranged in the vertical and horizontal directions on the front surface of the reflector 141 to radiate radio waves.

The power supply unit (not shown) supplies power to each radiation element 143.

When power is supplied to all radiating elements 143 arranged in the vertical and horizontal directions on the front surface of the reflector 141 formed in the form of a truncated cone (not shown), the omnidirectional pattern is as shown in FIG. 4. It is formed, and it is possible to transmit/receive signals in all directions of azimuth 0° to 360°.

And the power supply unit (not shown) to supply power to only the radiating element 143 corresponding to a quarter of the azimuth among the radiating elements 143 arranged in the vertical and horizontal directions on the front surface of the reflector 141 formed in the form of a truncated cone. If it does, a directional pattern can be formed.

For example, when it is assumed that the radiation elements 143 are arranged in a 4×32 phase in the vertical and horizontal directions on the front surface of the reflector 141 formed in the form of a truncated cone, the radiation elements 143 are as shown in FIG. 5. It is composed of 32 columns. Among them, if power is supplied to the first to eighth columns, and an arbitrary vector value is added, a directional sum pattern and a directional difference pattern may be formed as shown in FIGS. 6 and 7.

As described above, power is supplied to columns 1 to 8, an arbitrary vector value is added, and then power is supplied to columns 2 to 9, columns 3 to 10, and columns 4 to 11 in sequence. When a vector value is added, beam steering is possible in all directions from 0° to 360°.

When the directional pattern is formed in this way, beam steering can be electrically performed in all directions from 0° to 360°, so there is no need to have a rotating part of the pedestal, thereby simplifying maintenance. do.

The power supply unit (not shown) may form an omnidirectional pattern or form a directional pattern by supplying power to each radiating element 143 under the control of a power supply control unit (not shown).

The antenna unit 140 is preferably implemented as an active phase array antenna in which a plurality of radiating elements 143 arranged in a truncated cone shape independently transmit and receive radio waves.

As described above, in the embodiment of the present invention, the antenna unit 140 forms both an omni-directional pattern and a directional pattern, so that the omni-directional antenna for the transponder 130 and the interrogator 120 with one antenna Since it performs all of the functions of the antenna, it is possible to minimize the spatial loss caused by the antenna installation. Due to this, it has improved RCS performance compared to the prior art, and it is possible to lower the detection rate by an enemy radar.

In addition, as shown in FIG. 3, a plurality of radiating elements 143 are arranged in the vertical and horizontal directions on the front surface of the reflector 141 formed in the form of a truncated cone to implement the antenna unit 140, so that the basic beam directing direction is shown in FIG. 8. As shown in the figure, it is upwardly oriented, making it easy to identify the aircraft.

When it is desired to form the beam directing direction horizontally, the beam directing direction may be adjusted by adjusting the phase value of the thermally arranged radiation elements 143.

On the other hand, in the embodiment of the present invention, a plurality of radiating elements 143 are arranged in the vertical and horizontal directions on the front surface of the reflector 141 in which the antenna unit 140 is formed in a cone shape. A plurality of radiating elements 143 may be arranged in the vertical and horizontal directions on the front surface of the reflective plate 141 to be formed into a polygonal truncated cone shape.

Although described above with reference to embodiments, those skilled in the art understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Will be able to.

110. handler, 120. interrogator,
130. Answering machine, 140. Antenna part,
141.Reflector, 143. Radiation element

Claims (1)

An interrogator that sends an interrogation signal and receives a response signal from the target;
A transponder receiving the interrogation signal from the target and transmitting a response signal to the interrogation signal received;
A processor that analyzes a response signal received from a target and determines whether the target is a friendly or an enemy;
It includes a single polygonal truncated antenna including a plurality of reflecting plates arranged in the form of a polygonal truncation and a plurality of radiating elements arranged in rows in the horizontal and vertical directions on the reflecting plates, and feeding the entire number of radiating elements. When it is formed, an azimuth 360-degree omnidirectional pattern of the single polygonal truncated antenna is formed, and among the plurality of radiated elements, a plurality of radiated elements included in the azimuth 90 degrees of the single polygonal truncated antenna is fed and an arbitrary vector value is generated. When applied, forms one of a directional sum pattern and a directional difference pattern of the single polygonal truncated antenna, and transmits a question signal of the interrogator using the omnidirectional pattern and the directional sum pattern and the directional difference pattern, and targets An antenna unit for receiving a response signal from, receiving a question signal from a target, and transmitting the response signal of the transponder; And
It includes; a feeding unit for feeding the whole of the plurality of radiation elements, and for feeding a plurality of radiation elements included in the azimuth angle of 90 degrees of the single polygonal truncated antenna
The power supply unit feeds all of the plurality of radiation elements, feeds a plurality of radiation elements included in an azimuth angle of 90 degrees of the single polygonal truncated antenna, and enables beam steering in all directions of the single polygonal truncated antenna. Includes; a power supply control unit for sequentially selecting and feeding a plurality of radiation elements included in the azimuth 90 degrees,
The side surface of the single polygonal truncated antenna, the beam direction of the antenna portion is upwardly inclined at an angle to facilitate the identification of the aircraft, the next constructive structure having an active phase array IFF antenna in the form of a polygonal truncated cone Dragon Pia Identification Device.

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