KR20170090846A - A Radar Antenna Apparatus with a Static Operating Structure for a Vessel - Google Patents

A Radar Antenna Apparatus with a Static Operating Structure for a Vessel Download PDF

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Publication number
KR20170090846A
KR20170090846A KR1020160011732A KR20160011732A KR20170090846A KR 20170090846 A KR20170090846 A KR 20170090846A KR 1020160011732 A KR1020160011732 A KR 1020160011732A KR 20160011732 A KR20160011732 A KR 20160011732A KR 20170090846 A KR20170090846 A KR 20170090846A
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South Korea
Prior art keywords
antenna
radar
unit
modules
signal
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KR1020160011732A
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Korean (ko)
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KR101797606B1 (en
Inventor
김정환
이주형
이명원
김효성
조대영
Original Assignee
주식회사 산엔지니어링
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Priority to KR1020160011732A priority Critical patent/KR101797606B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/032—Constructional details for solid-state radar subsystems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S2013/0236—Special technical features
    • G01S2013/0245—Radar with phased array antenna
    • G01S2013/0263—Passive array antenna

Abstract

The present invention relates to a radar antenna apparatus having a fixated structure for a ship and, specifically, to a radar antenna apparatus having a fixated structure for a ship, which has a polygonal structure and determines detection accuracy by adjusting and receiving a beam pattern transmitted to a phase shifter in a predetermined direction. The radar antenna apparatus having the fixated structure for a ship comprises: a plurality of antenna modules (11a, 11b, 11c, 11d) arranged to face different directions; a signal processing module (14) for processing signals transmitted or received from each of the antenna modules (11a, 11b, 11c, 11d); antenna units (13) being adjacent to the antenna modules (11a, 11b, 11c, 11d) respectively to be arranged along the same plane; and a phase control unit controlling a phase of each of the antenna units (13), wherein the antenna modules (11a, 11b, 11c, 11d) form polygonal wall surfaces facing different directions.

Description

TECHNICAL FIELD [0001] The present invention relates to a radar antenna apparatus having a fixed structure for a ship,

The present invention relates to a radar antenna apparatus having a fixed structure for a ship, and more particularly to a radar antenna apparatus having a fixed structure for a ship, which has a polygonal structure and is adapted to receive and control a beam pattern transmitted to a phase shifter in a predetermined direction, To an antenna device.

A radar device that transmits electromagnetic waves to a target and receives a reflected wave to detect the position of the target has been applied to various fields including industrial or military use. 2. Description of the Related Art Generally, a radar apparatus includes a signal generating module for generating a radio signal, an antenna module for receiving a reflected wave by transmitting the generated radio signal in a predetermined direction, a signal processing module for detecting a position of a target by processing the received reflected wave, And a display module for displaying the display data. In a radar apparatus having such a structure, an antenna module transmits signals in all directions by an antenna unit rotated by a rotation motor to detect an object. When the rotating antenna module is used in a ship, the rotary part may be damaged due to the influence of salt or seawater, and a complicated structure is required to prevent the rotating part. Further, in the case of an open array structure, an additional device capable of reducing the influence of wind is required.

Japanese Patent Application Laid-Open No. 10-2001-0094315 discloses a case in which a cylindrical lid is coupled to an upper portion of an antenna provided with a metal patch on the inside of the case, the rotary shaft is rotated by a speed reducer to which driving of the motor is transmitted, And a magnetron device for generating electromagnetic waves. A metal reflector is mounted on the inner side of the cylindrical lid to shield electromagnetic waves, and the reflector is protruded to the lower portion of the lid The present invention relates to an antenna device for a marine radar which is fixed by a screw which is connected to a support and penetrates through it.

Patent Publication No. 10-2015-0042559 discloses a radar antenna having a rod shape extending in a horizontal length; A rotation unit including a motor for rotating the antenna and an encoder for measuring an orientation of the radar antenna; A distance measuring sensor unit installed on the radar antenna and rotating at the same time to measure a position of the structure existing near the center of the rotation axis of the radar antenna through the radar; A signal processing unit for displaying a blind sector area, which is a radio wave shading section, on the radar display module with reference to the rotation axis according to the position of the structure measured by the distance measurement sensor unit; And a control module for controlling the overall operation of measuring and displaying the blind sector area.

The antenna disclosed in the prior art is made of a rotating structure and has the above-mentioned problems. Therefore, it is necessary to develop an antenna structure having a new structure for solving such a problem. The present invention has the following object to solve the problems of the prior art.

Prior Art 1: Patent Publication No. 10-2001-0094315 (Techmate Co., Ltd., published on October 31, 2001) Antenna device for marine radar Prior Art 2: Patent Publication No. 10-2015-0042559 (Samsung Heavy Industries, Ltd., published on Apr. 21, 2015) Ship radar apparatus and method of operating the same

An object of the present invention is to provide an antenna device with a fixed structure for a ship which is simple in installation and operation with improved durability due to a simple structure.

According to a preferred embodiment of the present invention, the radar antenna apparatus of the ship fixing structure includes a plurality of antenna modules arranged to face in different directions; A signal processing module for processing a signal transmitted or received from each antenna module; An antenna unit disposed adjacent to and coplanar with each other in each antenna module; And a phase control unit for controlling the phase of each antenna unit, wherein the plurality of antenna modules form a polygonal wall face facing in different directions.

According to another preferred embodiment of the present invention, the polygon is a rectangle.

According to another preferred embodiment of the present invention, each of the antenna modules includes an operation setting unit for setting operation conditions, a rectangular direction setting unit for setting the direction of the antenna, and a orientation setting unit.

The antenna device according to the present invention is made to have a non-rotatable fixed structure so that the device for controlling the rotation is removed. Thereby reducing maintenance and repair costs resulting from the installation of the rotating device. In addition, the size and performance of the antenna are optimized by the fixed method, and the operation of the device is made easy. The antenna apparatus according to the present invention can easily make a low output system structurally simple by applying a Frequency Modulation Continuous Wave (FMCW) or an FMCW Doppler radar system, thereby preventing a danger due to exposure to electromagnetic waves. In addition, the antenna device according to the present invention enables the detection area to be set appropriately according to the detection environment so that it can be operated regardless of the detection environment.

1 shows an embodiment of an antenna apparatus according to the present invention.
FIG. 2 illustrates an embodiment in which the size of the detection beam is adjusted by the phased array in the antenna apparatus according to the present invention.
3 shows an embodiment of a transmitting and receiving process of the antenna apparatus according to the present invention.
4 shows an embodiment of the operating structure of the antenna device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

1 shows an embodiment of an antenna apparatus according to the present invention.

Referring to FIG. 1, a radar antenna apparatus 10 having a fixed structure for a ship includes a plurality of antenna modules 11a, 11b, 11c, and 11d arranged to face in different directions; A signal processing module 14 for processing signals transmitted or received from the respective antenna modules 11a, 11b, 11c, and 11d; An antenna unit 13 disposed adjacent to and coplanar with each other in each of the antenna modules 11a, 11b, 11c, and 11d; And a phase control unit for controlling the phase of each antenna unit 13. The plurality of antenna modules 11a, 11b, 11c, and 11d form polygonal wall faces oriented in different directions. The signal processing module 14 may be installed separately for each of the antenna modules 11a, 11b, 11c, and 11d, or may independently process signals. Alternatively, one signal processing module 14 may be centrally or at another suitable location so that the signals of each antenna module 11a, 11b, 11c, 11d may be processed by one signal processing module 14. [

The radar antenna device 10 may be formed in a box shape having an open upper surface and a lower surface as a whole, and antenna modules 11a, 11b, 11c, and 11d may be disposed on respective wall surfaces of a box shape. With this arrangement, it is possible to detect targets in all directions. The radar antenna apparatus 10 may be installed in a medium or small ship, but is not limited thereto. The radar apparatus may be disposed in various ships where a radar apparatus is required, and the present invention is not limited by the type of ship to be installed.

The antenna device 10 can be fixed at a predetermined position of the ship and the plurality of antenna modules 11a, 11b, 11c, and 11d can receive a reflected wave by transmitting a radar signal in a predetermined direction to the ship at a predetermined position . The radar signal may be a pulse signal or a continuous signal, but may preferably be a Frequency Modulation Continuous Wave Radar Signal (FMCW), and the antenna apparatus 10 may be operated by an FMCW Doppler radar system. The antenna device 10 can be installed mainly in a small to medium sized ship to detect a target table and can have a low output. Therefore, the FMCW radar system is more advantageous for the overall system design and operation than the pulse Doppler radar system. However, the antenna device 10 according to the present invention can be operated in various ways depending on the type or use of the ship to be installed and is not limited by the manner or structure of the operation of the antenna device 10.

A cylindrical shape or a polyhedron shape can be used in order to make a structure capable of detecting in all directions while the antenna device 10 is fixed without being rotated. The cylinder shape is disadvantageous in that it is difficult to process the radar signals transmitted and received from the respective antenna modules 11a, 11b, 11c, and 11d. A triangular shape, a rectangular shape, a pentagonal shape, or a polyhedral shape can be used in the form of a polyhedron, for example. When the antenna device 10 has a fixed structure, a phased array antenna should be disposed in each of the antenna modules 11a, 11b, 11c, and 11d. When the antenna modules 11a, 11b, 11c, and 11d are triangular, it is necessary to detect an angle range corresponding to 120 degrees, which makes phase control difficult or a high performance satellite array antenna should be installed. On the other hand, for example, in the case of a pentagonal shape, the detection angle range is reduced by 72 degrees, and the phase control is relatively easy. However, the phase control is performed independently for each surface, I have. The same is true for polygonal shapes larger than that. Therefore, it is advantageous that the antenna modules 11a, 11b, 11c and 11d are preferably square-shaped. In particular, when a square-shaped body is used, it can exhibit substantially the same detection capability as a radar device of a rotating structure.

Each of the antenna modules 11a, 11b, 11c and 11d can be independently controlled and the signal processing module 14 can be installed in each of the antenna modules 11a, 11b, 11c and 11d. Each of the antenna modules 11a, 11b, 11c, and 11d can be operated independently, and the use frequency, the detection distance, the width of the horizontal beam, or the vertical beam width can be independently set in a predetermined direction. Also, transmission, reception, and processing of the radar signal can be performed independently. Such independently detected detection results can be combined with each other by the control unit and displayed on the display.

Each of the antenna modules 11a, 11b, 11c, and 11d may be disposed adjacent to each other on the same plane and along the same plane. Specifically, each of the antenna modules 11a, 11b, 11c, and 11d includes a base substrate 12 made of, for example, synthetic resin or a metal material; An up / down conversion module 16 disposed in front of the base substrate 12; a phase control module 15 disposed in front of the up / down conversion module 16; And an antenna unit 13 disposed at the frontmost position.

The antenna unit 13 may include a plurality of radiation pattern elements arranged on an antenna substrate having a rectangular or polygonal shape. A plurality of antenna substrates may be provided adjacent to each other to form transmission and reception antennas of the antenna modules 11a, 11b, 11c, and 11d. The angle of rotation of the antenna unit 13 can be adjusted within a certain angle range by the phase control module 15. The phase control module 15 may have a function of controlling a detection direction detected by each antenna module so as to be a direction set by the signal processing module 14. [

One phase control module 15 may be coupled to one antenna unit 13 and a plurality of phase control modules 15 may be coupled to one up / The up / down conversion module 16 generates a radar signal and transmits a signal to each of the phase control module 15 and the antenna unit 13 to transmit a signal in a predetermined direction. In addition, the transmitted signal may have a function of moving the frequency to a low frequency band so as to process a signal reflected from a target and transmitting the signal to a signal processing unit. The phase control module 15 may have a function of controlling the directions of the respective antenna modules 11a, 11b, 11c, and 11d. The base substrate 12 may be made of an electromagnetic shielding material to block electromagnetic waves from entering the antenna device 10, or may have an electromagnetic wave shielding coating surface. Such an electromagnetic wave shielding structure of the base substrate 12 prevents noise due to interference generated between the signal processing module 14 or the antenna modules 11a, 11b, 11c, and 11d arranged in different directions .

As shown in FIG. 1, the antenna modules 11a, 11b, 11c, and 11d may be separately arranged up and down, and the antenna modules 11a, 11b, 11c, And the antenna modules 11a, 11b, 11c, and 11d disposed at the lower side can be applied to reception of signals. The transmit and receive antennas may have the same or different patterns or structures. By arranging the transmitting antenna and the receiving antenna independently, signal processing can be performed stably and space utilization can be improved. Also, the antenna is designed to be suitable for the transmission characteristic or the reception characteristic.

Each of the antenna modules 11a, 11b, 11c, and 11d can be made in various structures, and the present invention is not limited to the embodiments shown.

The antenna modules 11a, 11b, 11c and 11d in the antenna device 10 according to the present invention are arranged in different directions and can be operated independently, The direction of the radar signal or the radar beam transmitted from the radar system needs to be controlled. And the direction control of the radar beam can be performed independently for each of the antenna modules 11a, 11b, 11c, and 11d. For this purpose, the antenna unit 13 arranged in each direction may be a phased array antenna or a phased array unit may be arranged in each of the antenna modules 11a, 11b, 11c and 11d. The radar signals transmitted from the respective antenna modules 11a, 11b, 11c, and 11d can be independently set to the directions of the transmission beams.

FIG. 2 shows an embodiment in which the direction of the detection beam is adjusted by the phased array in the antenna apparatus according to the present invention.

2, the antennas 211, 212 to 21N disposed in one antenna module may be phased array antennas, the phases are determined by the phased array units 221, 222 to 22N, Can be made into a transmission radar signal Tx and transmitted toward the target while forming one beam by the unit 23. And the reflected radar signal Rx may be synthesized through the signal combining / separating unit 23 and received and processed by the antennas 211, 212 to 21N through the phased array units 221, 222 to 22N. Or the reflected radar signals Rx received by the different antennas 211, 212 to 21N are phase shifted by the phased array units 221, 222 to 22N and synthesized by the signal combining / separating unit 23 And transmitted to the signal processing unit. As described above, in the antenna apparatus according to the present invention, the transmission or reflection signal can be processed as a phase shift.

3 shows an embodiment of a transmitting and receiving process of the antenna apparatus according to the present invention.

3, a radar detection signal can be generated by a signal generating unit 31 such as an oscillator or a frequency synthesizer, and the generated signal is mixed with a localizer (CA) 32) signal. And can be amplified by the transmission amplifier 351 via a filter 341 such as a band pass filter and transmitted to the antenna unit. The amplified signal may be phase shifted by the respective phased elements 361 to 36K in the antenna unit and transmitted toward the target in a certain direction through the antenna elements 371 to 37K. And the reflected radar signal Rx reflected from the target can be received by the antenna elements 371 to 37K. The reflected radar signal Rx may again be shifted to the initial phase by the phased elements 361 to 36K and delivered to the receiving amplifier 352. [ Then passes through a filter 342 such as a band pass filter and is moved to a low frequency band where the signal can be processed in the mixer 332 and passes through a filter 343 such as a low pass filter to be output to the signal processing unit 38 The reflected radar signal Rx may be transmitted and processed and then displayed.

According to the present invention, the transmission of the transmission radar signal Tx and the processing of the reflection radar signal Rx must be independently processed by the antenna modules arranged in different directions. Therefore, Lt; / RTI >

4 shows an embodiment of the operating structure of the antenna device according to the present invention.

Referring to FIG. 4, the transmission configuration of the transmission radar signal can be determined by the operation setting unit 421, and the signal received by the distance analysis and algorithm unit 422 can be analyzed.

The overall operation of the antenna device can be controlled by the control unit 41 and the operating conditions of each antenna module can be determined by the operation setting unit 421. [ The direction to be detected by the control unit 41 can be determined and transmitted to the operation setting unit 421. [ The direction of the antenna unit provided in each antenna module can be determined by the square direction setting unit 441 and the orientation setting unit 442. [ The transmitting unit 431 includes a device for generating and transmitting a transmitting radar signal to the antenna elements 371 to 37K, and may for example comprise an oscillator, filter, amplifier or phased array unit as described above. Signals phased in the transmission unit 431 can be transmitted in a predetermined direction through the antennas 371 to 37K and the transmission directions of the respective antenna modules can be independently determined. And the reflected waves can be received by the antennas 371 to 37K and processed by the receiving unit 432. [ As described in the embodiment related to FIG. 1, the antenna element for transmission and the antenna element for reception may be different from each other and may be arranged vertically, for example, in the antenna module. The receiving unit 432 may separate the signals received and processed by the different antenna modules and transmit them to the distance analysis and algorithm unit 422. [ The distance analysis and algorithm unit 422 may analyze the signal and transmit it to the imaging unit 46.

The distance analysis and algorithm unit 422 may detect the target from the signal of each antenna module. If one distance analysis and algorithm unit 422 is used, the transmission signals in each antenna module can be transmitted with a time difference, and different antenna modules can be received in different antenna modules. And you can determine the distance of the detected objects in each direction.

The radar antenna apparatus according to the present invention may have various operating structures, and the present invention is not limited to the embodiments shown.

The antenna device according to the present invention is made to have a non-rotatable fixed structure, thereby eliminating the device for controlling the rotation separately and reducing maintenance and repair costs caused by the rotating device. Also, it makes the operation of the antenna device easy, and the size and performance are optimized with the fixed antenna.

The antenna apparatus according to the present invention can easily make a low output system structurally simple by applying a Frequency Modulation Continuous Wave (FMCW) or an FMCW Doppler radar system, thereby preventing the danger of exposure to electromagnetic waves. In addition, the antenna device according to the present invention enables the detection area to be set appropriately according to the detection environment so that it can be operated regardless of the detection environment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: Radar antenna apparatus 11a, 11b, 11c, 11d: Antenna module
12: base substrate 13: antenna unit
14: Signal processing module 15: Phase control module
16: up / down conversion module 23: signal combining / separating unit
31: Signal generating unit 32: RF
38: signal processing unit 41: control unit
46: video unit 211, 212 to 21N: antenna
221, 222 to 22N: phased array unit 331, 332: mixer
341, 342: filter 343: filter
351: Transmit amplifier 352: Receive amplifier
361 to 36K: Phased array elements 371 to 37K:
421: Operation setting unit 422: Distance analysis and algorithm unit
431: transmitting unit 432: receiving unit
441: Square direction setting unit 442: Orientation setting unit
CA: LOC Rx: Reflected radar signal
Tx: Transmitter radar signal

Claims (3)

A plurality of antenna modules (11a, 11b, 11c, 11d) arranged to face in different directions;
A signal processing module 14 for processing signals transmitted or received from the respective antenna modules 11a, 11b, 11c, and 11d;
An antenna unit 13 disposed adjacent to and coplanar with each other in each of the antenna modules 11a, 11b, 11c, and 11d; And
And a phase control unit for controlling the phase of each antenna unit (13)
Wherein the plurality of antenna modules (11a, 11b, 11c, 11d) form polygonal wall faces oriented in different directions. The radar antenna device according to claim 1, wherein the polygon is a square. The antenna module according to claim 1, wherein each of the antenna modules (11a, 11b, 11c, 11d) includes an operation setting unit (421) for setting operating conditions, a square direction setting unit (441) (442). ≪ IMAGE >
KR1020160011732A 2016-01-29 2016-01-29 A Radar Antenna Apparatus with a Static Operating Structure for a Vessel KR101797606B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021006577A1 (en) * 2019-07-05 2021-01-14 씨아이에스포유 주식회사 Doppler radar structure for detecting human body
KR20210153571A (en) * 2021-03-19 2021-12-17 주식회사 산엔지니어링 A Fixed Radar Antenna Apparatus Capable of Extending a Structure and Function

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Publication number Priority date Publication date Assignee Title
US11815590B2 (en) * 2022-03-18 2023-11-14 Fionsystems, Inc. Cylindrical array radar

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Publication number Priority date Publication date Assignee Title
JP4186147B2 (en) 1999-11-19 2008-11-26 株式会社エフ・イー・シー 3D antenna
JP3697417B2 (en) 2002-01-18 2005-09-21 三菱電機株式会社 Active phased array antenna and its transceiver module mounting method
US8633851B2 (en) * 2010-02-19 2014-01-21 Honeywell International Inc. Low power, space combined, phased array radar
JP2011257350A (en) 2010-06-11 2011-12-22 Toshiba Corp Radar device
KR101217134B1 (en) 2012-01-11 2012-12-31 삼성탈레스 주식회사 Active array radar system using polynomial curve fitting calibration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021006577A1 (en) * 2019-07-05 2021-01-14 씨아이에스포유 주식회사 Doppler radar structure for detecting human body
KR20210153571A (en) * 2021-03-19 2021-12-17 주식회사 산엔지니어링 A Fixed Radar Antenna Apparatus Capable of Extending a Structure and Function

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