KR100586705B1 - Beam String Control System of Phased Array Antenna - Google Patents

Abstract

A controller for controlling the overall operation so as to control the irradiation direction of the beam radiated into the atmosphere through the array elements of the phased array antenna, and various signals, control results and abnormal checks for beam steering control in each array element connected to the controller. An interface unit for interfacing information about the data, a data converter for extracting data and instructions from an applied signal, a data distribution unit for latching the applied data and instructions and then distributing data values according to a mode setting; Selecting a phase calculation unit for calculating and setting a phase value for beam steering from data, and an array element for recording fixed control signals and displacement data for controlling beam steering according to input data and setting phase values for array elements Signal, addressing signal and phase control data are generated to produce beams of array elements The initial phase value, the phase value information of the main board, and the operation information of the array element are processed by using a control signal and a check signal for controlling the direction. As a result, whether the information and the phase value are normally calculated, the communication loop between the communication distributor is normally formed It provides a beam steering control apparatus for a phased array antenna including an abnormality detection unit for diagnosing whether or not it is transmitted to the controller through the data conversion unit.

Phased array antenna, beam steering control, array element, phase control, reset section, communication

Description

Beam steering control device for phased array antenna

1 is a block diagram of a beam steering control apparatus for a phased array antenna according to the present invention.

FIG. 2 is a detailed block diagram illustrating the data distribution unit of FIG. 1.

FIG. 3 is a detailed block diagram illustrating the phase calculator of FIG. 1.

4 is a detailed block diagram of the controller of FIG. 1.

FIG. 5 is a detailed block diagram of the abnormality detecting unit in FIG. 1; FIG.

The present invention relates to a beam steering control device for a phased array antenna, and more particularly to a beam steering control device for a phased array antenna to control the irradiation direction of the beam radiated into the atmosphere through the array element.

In general, a radar is a device that receives an echo of electromagnetic waves reflected from a surface of a target object by radiating electromagnetic waves, and detects the presence of a target or receives a response signal from an answering machine (radar responder) in the target. It is a device mainly used when checking by doing.

As the antenna used to radiate the beam from the radar, a parabolic antenna, a phased array antenna, or the like is used.

The dish antenna scans the beam by a mechanical rotation method, and the phased array antenna controls the phase to scan the electron beam electronically.

The phased array antenna is arranged so that the beam is irradiated by arranging vertical multistage radiating elements or horizontal multistage radiating elements electrically and geometrically in order to obtain a desired radiation characteristic, and the irradiated beams are radiated by a phase shifter arranged in two dimensions. The direction is adjusted.

The phase shifter is composed of a coil wound around a ferrite core in a form similar to a transformer, and the adjustment of the beam irradiation direction through this causes a magnetic field to be generated by passing a current through the coil for a certain time, and the magnetic susceptibility is As it changes, the propagation constant of the signal fed to the radiation element is changed.

Therefore, the phase of the signal fed to each array element is changed by the change of the magnetic field intensity through the adjustment of the intensity of the current to electronically steer the beam direction during transmission and reception.

As described above, in order to steer the beam irradiated from the vertical multi-stage array element or the horizontal multi-stage array element, the number of beam steering control bits is determined by the number of arrangement of phase shifters arranged in two dimensions and the number of control bits for controlling the phase shifter. .

Therefore, the apparatus for controlling the steering of the beam is made of a very complex hardware configuration, and the beam steering algorithm set therein also has a disadvantage of being complicatedly set.

In particular, when the number of arrays of phase shifters arranged in two dimensions increases as the array elements are arranged to expand the scan area, the configuration of algorithms and devices for beam steering becomes more complicated, making it difficult to change hardware and algorithms. There are disadvantages.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and in the configuration of a beam steering control device of a phased array antenna for controlling the irradiation direction of a beam radiated into the atmosphere through an array element, the phase shift is arranged in two dimensions. Provides a beam steering control device for a phased array antenna that enables the beam steering control to be actively performed in response to an increase in crisis, and simplifies the system configuration by configuring a system as a field programmable gate array (FPGA). It is to.

Another object of the present invention is to provide a beam steering control apparatus for a phased array antenna that provides simplicity in modification of a beam steering algorithm according to an increase or decrease of an array element.

A beam steering control apparatus for a phased array antenna proposed by the present invention includes a controller for controlling overall operation of the phased array antenna; An interface unit connected to the controller via serial communication to interface various signals, control results, and abnormality check information for beam steering control in each array element of a phased array antenna by serial communication; A data converter configured to extract data and command data including pulses for data latches, data setting values, beam steering commands, mode settings, and operation methods from signals applied from the interface unit; Data including a data setting value received according to a data latch pulse applied by the data converter and information for determining a beam steering command, a mode setting, and an operation method, and data according to a mode setting after latching the command A data distribution unit for distributing values; A phase calculator configured to calculate and set a phase value for beam steering of each array element from data applied by the data distributor; Fixed control signals (START / PWR / EOP / RRG) and displacements for controlling beam steering according to various control data and control information input from the data distribution unit and setting phase values for each array element applied by the phase calculator. A control unit which controls steering of the beam of the array element by generating an array element selection signal EWR_WRRG, an addressing signal CNT, and phase control data D for recording data; The initial phase value, the phase value information of the main board, and the operation information of the array element are processed by using a check signal (Check) applied from the main board. As a result, whether the information (BSU_data) and the phase value are normally calculated, and between the communication distributor And an abnormality detector for diagnosing whether the communication loop is normally formed and transmitting the data to the controller through the data converter.

Hereinafter, a preferred embodiment of a beam steering control apparatus for a phased array antenna according to the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figure 1 an embodiment of the beam steering control apparatus for a phased array antenna according to the present invention, RS-232 (100), data converter 200, data distribution unit 300, phase calculation unit 400, the controller 500, and the abnormality detector 500 are configured.

The RS-232 100 is connected in serial communication with a controller for controlling the overall operation of the phased array antenna (commonly referred to as 'PC' A) and applied for steering control of beams irradiated from the phased array antenna. It performs the interface function to transmit the data about the control result of the signal and phased array antenna and the abnormal check to the PC (A) by serial communication.

The data converter 200 determines the data latch pulse (Strobe) and data setting value, beam steering command, mode setting and operation method in the signal applied from the PC (A) through the RS-232 (100) It is responsible for the function of extracting the data and command data including the and the like to transmit to the data distribution unit 300.

In addition, it is responsible for transmitting the steering completion signal of the emitted beam and the signal for various abnormal checks to the PC (A) through the RS-232 (100).

The data distributor 300 may include data including a data setting value received according to a data latch pulse applied by the data converter 200, information for determining a beam steering command, a mode setting, and an operation method. It is responsible for latching commands and distributing data values according to the mode setting.

The data value distributed according to the mode setting includes a plurality of signals (T1, T2, T3, T4, T5) for selecting an array element, a synchronization signal (Sync) for transmitted data, and a beam steering angle data for the X axis ( Delx), beam steering angle data (Dely), Y-axis data (f), check phase for checking the operation of each phase shifter constituting the array element, and the shape and operation of the beam radiated from the radiation element. A mode signal for selecting a mode, an address signal for selecting an array element for irradiating a beam, and a repetition period for beam steering operations of each array element.

In addition, the data distribution unit 300 outputs a check time determination signal read for causing the abnormality detection unit 600 to check an operation state of each array element.

The phase calculator 400 is configured to supply data applied from the data distributor 300, that is, beam steering angle data Delx for the X axis, beam steering angle data Dely for the Y axis, beam steering frequency data f, and After calculating and setting the phase value of each array element from the check phase data for checking the operation of the array element, the calculated result data P_data is applied to the controller 500.

Since the time required to calculate the phase value of one radiation element is about 1 ms, the time required to calculate the phase value of all the radiation elements constituting the phased array antenna is about 256 ms.

The control unit 500 is a plurality of signals (T1, T2, T3, T4, T5) for selecting the array elements input from the data distribution unit 300, the data synchronization signal (Sync), the shape of the beam radiated from the array elements And information such as a mode signal for selecting an operation mode, an address signal for selecting an array element for irradiating beams, a repetition period for beam steering of each array element, and information for each array element applied by the phase calculator 400. The fixed control signal (START / PWR / EOP / RRG) for controlling the beam steering and the address selection signal (EWR_WRRG) for selecting the array element to record the displacement data according to the set phase value (PDATA) CNT) and phase control data D are generated and output to the main board (not shown) connected to connectors 1 and 2 to control the steering angle in the irradiation of beams through each phase shifter constituting the array module.

In the above description, START is a timing pulse for operating each phase shifter constituting the array module, and PWR is a signal for selecting whether the phase shifter is a phase reset section or a set section of the phase shifter. high "to select the reset section, and" low "to select the set section), EOP is the signal to enable the operation phase of the phase shifter, and RRG clears the set data to '0' to drive the phase shifter. It is a signal.

The abnormality detection unit 600 processes the initial phase value, the phase value information of the main board, and the operation information of the array element by using a check signal Check applied from a main board (not shown) connected through the connector 3, and the result information. The BSU_data is transmitted to the PC A through the data converter 200.

In addition, whether or not the phase value calculated by the phase calculation unit 400 is normally calculated and the communication loop between the communication distributor is normally formed, and whether the normal communication is being performed, such as to diagnose the overall state according to the operation Information is transmitted to the PC (A) through the data conversion unit (200).

Further, information on whether beam steering is completed in the array element to be selectively controlled is transmitted to the PC (A).

The detailed structure about each structure which has the above-mentioned function is as follows.

As shown in FIG. 2, the data distributor 300 includes a decoder 310, a first data selector 320, a multiplier 330, a second data selector 340, a first mux 350, and a first decoder. It comprises a two mux 360, a third mux 370 and a RAM (380).

The decoder 310 decodes the modulated command data serially interfaced at the PC A, and then matches the pulse signal Strobe for data latching.

The first data selector 320 selects data to be applied from the data converter 200 according to a command matched by the decoder 310 to generate operation data for beam steering of the array element.

The multiplier 330 multiplies the frequency data F for beam irradiation by the beam steering angle data of the X and Y axes in the array device to determine the steering angles of the X and Y axes with respect to the beam to be irradiated.

The second data selector 340 selects a steering angle with respect to the X-axis or the Y-axis determined by the multiplier 330 when irradiating the beam through the array element so that the beam may be controlled.

The RAM 380 stores phase control data when irradiating from the array element.

The decoder 310 restores the decoded command as shown in Table 1 below.

division command data Explanation Remarks    Timing data One T1 [9..8]  Start signal P2-P1 time determination 2 T1 [7..0] 3 T2 [9..8]  Start signal P4-P3 time determination 4 T2 [7..0] 5 T3 [9..8]  Start signal P5-P4 time determination 6 T3 [7..0] 7 T4 [9..8]  Start signal P6-P5 time determination 8 T4 [7..0] 9 T5 [9..8]  Start signal P7-P6 time determination 10 T5 [7..0] 11 Period [15..8]  Repetitive operation cycle of BSU 12 Period [7..0] 13 ON Repeated operation of BSU 14 cnt_w [4..0] Counter width data 15 s_w [5..0] Start signal pulse width 16 d_w [5..0] Data signal pulse width  Beam steering data 20 F [7..0] Beam steering frequency input data 21 Delx [14..8]  X-axis beam steering data 22 Delx [7..0] 23 Dely [14..8]  Y-axis beam steering data 24 Dely [7..0]  Motion data 30 BSU Operation Sync Signal 31 P_data [3..0] Array element direct input phase value 32 Address [7..0] Array element location information 33 Mode [7..0] BSU operation mode data 34 read [3..0] read data type 35 Address [7..0]  Phase value data to be applied to array element Memory Write 36 data [3..0]

The first selector 320 selects control data applied according to the command restored by the demodulator 310 as shown in Table 1 above.

That is, the timing pulses T1 to T5 for each phase shifter constituting the array module are determined, and the repetition period (Period), the determination of the presence or absence of the operation (ON) for the beam irradiation of each array element, and each phase shift Beam steering frequency (F) for the crisis, beam steering values on the X and Y axes, mode of operation, reading of data to check for abnormal conditions of operation, address specifying the phase shift (CNT), Select the phase control value P_data.

In addition, if the value of the operation mode (Mode [7 ... 2]) selected and determined by the first data selector 320 is 1, beam steering (normal operation) is 2, and any phase control of the array element is performed. (Beam steering direct control), 3 means beam steering test, 4 means initial phase check, 5 means to set the same phase value to all array elements, 6 means reset all array elements to the maximum value. If the current supply is off, 7 sets all array elements to the maximum value to turn on the current supply, 8 means checks for errors in beam steering, and 9 resets the array elements to be tested one by one. If 10, test by setting the array elements to be tested one by one.

In addition, in the operation mode to be determined, two bits (operation mode consisting of Mode [1.0], the value is 0, the irradiation of the narrow beam, 1 is the irradiation of the wide beam, 2 is the wide beam for the X axis) Irradiation is at 3, irradiating a wide beam along the Y axis.

If the value of the error check signal Read [3..0] selected as 4 bits is 1, an error is checked for phase value data (BSU error check) and signal divider output phase value data. The value data is checked. If the value is 3, the operation error of the array element is checked. If the value data is 4, the result of the check is written to the RAM 380 which is a memory element.

The first mux 350 compares whether the address of the array element to which the beam irradiation is controlled and the value of the address to be controlled match each other, and records the result in the RAM 380 as a memory.

The second mux 360 multiplexes the clock clk, the clock Mem_clk for storing the beam steering result and the abnormality check result and applies the clock to the RAM 380 to store data.

The third mux 370 determines a phase control value with respect to the beam steering data of the selected X or Y axis.

In addition, in FIG. 1, the phase calculator 400 includes a plurality of adders 417, 416, 418, 419, and 422, a plurality of multipliers 415, 413, and 412, as shown in FIG. 3. It consists of a plurality of muxes 414, 421, 423, a plurality of ROMs 411, 420, and a selector 424.

In the above, the first ROM 411 determines a position compensation value for beam steering according to the array element address information CNT for selecting the beam steering operation.

The third multiplier 412 multiplies the beam steering frequency data f with a position compensation value for the beam steering determined by the first ROM 411 using an unsigned 9-bit x 8-bit multiplier.

The second multiplier 413 is a signed 15-bit x 4-bit multiplier that multiplies the array element address information CNT for selecting the beam steering operation with the beam steering data Dely for the Y axis.

The first mux 414 multiplexes the arrangement of array elements mechanically by multiplexing the beam steering data Dely on the Y axis and the array element address information CNT for selecting the beam steering operation. Give it.

The first multiplier 415 is a signed 15-bit x 4-bit multiplier that multiplies the array element address information CNT for selecting the beam steering operation and the beam steering data Delx for the X-axis.

The first adder 417 adds the signal output from the first mux 414 and the signal output from the first multiplier 415.

The adder 416 adds the signal output from the second multiplier 413 and the signal output from the third multiplier 412.

The third adder 418 adds signals output from the first adder 417 and the second adder 416.

The fourth adder 419 adds the determined initial phase and the signal output from the third adder 416.

The second ROM 420 determines the shape of the beam from the array element address information CNT for selecting the operation of the beam steering to be applied.

The second mux 421 selects any one of four beam shapes determined by the second ROM 420 by multiplexing the beam selection signal applied and the beam shape determined by the second ROM 420.

The fifth adder 422 adds a signal output from the fourth adder 419 and a signal output from the second mux 421.

The third mux 423 is a phase value determined through calculation when the test signal applied to the phase determination values determined by the fourth adder 419 and the fifth adder 422 is 'high' level. If it is 'low' level, it outputs phase value to test.

The selector 424 determines and outputs a phase value applied by the third mux 423 according to the types of clocks CLK, CLK1, and CLK2 applied.

In addition, the controller 500 includes a first counter 510, a timing pulse generator 520, a second counter 530, a first control signal generator 540, a second control signal generator 550, and an address pulse. The generator 560 includes a control data generator 570.

The first counter 510 generates a counter pulse for controlling the BSU internal block.

The timing pulse generator 520 generates a pulse Start for selecting an array element for beam steering control.

The second counter 530 counts pulses for array element selection generated by the timing pulse generator 520.

The first control signal generator 540 matches and outputs phase control data to pulses for beam steering control on the X axis.

The second control signal generator 540 generates and outputs a fixed control signal START / PWR / EP / RRG for each array element selected to control beam steering.

The address pulse generator 560 generates and outputs a pulse signal for addressing the array element selected for beam steering control.

The control data generator 570 may perform phase control according to the phase control data applied from the first control signal generator 540, the fixed control signal applied from the second control signal generator 550, and a phase value for beam steering. Generate and output the data.

In the present invention configured to include the functions as described above, the operation of executing the beam steering control is as follows.

When data for steering control of beams irradiated from each array element of the phased array antenna is applied to the serial communication from the PC (A) that controls the overall operation of the phased array antenna, the RS-232 (100) receives the applied serial data. Interface to the conversion unit 200 side.

In this case, the data converter 200 may include data latch pulses, data setting values, beam steering commands, information on mode setting and operation methods, etc., in a signal interfaced through the RS-232 100. Extracts the data and the command data and transmits the extracted data to the data distribution unit 300.

The data distributor 300 may include data including a data setting value received according to a data latch pulse applied by the data converter 200 and information for determining a beam steering command, mode setting, and operation method. And latch the command, then distribute the data values according to the mode settings.

The distribution of data values according to the mode setting checks the operation of the array element whose beam steering data Delx on the X axis, beam steering data Dely on the Y axis, frequency data f, and beam steering are controlled. The check phase to be applied to the phase calculator 400 is applied.

In addition, a plurality of pulse signals (T1, T2, T3, T4, T5) for selecting each array element, a synchronization signal (Sync) for the transmitted data, the shape of the beam radiated from the radiation element and for selecting the operation mode The controller 500 applies information about the mode signal, the address signal for selecting the array element for irradiating the beam, and the operation period for beam steering of each array element.

The phase calculator 400 may include beam steering data Delx for the X-axis, beam steering data Dely for the Y-axis, beam steering frequency data f, and a phase shifter applied from the data distribution unit 300. The set phase value of each array element is calculated from the check phase data for checking the operation of the control phase, and applied to the controller 500.

Since the time required to calculate the phase value of one radiation element is about 1 ms, the time required to calculate the phase value of all the radiation elements constituting the phased array antenna is about 256 ms.

The control unit 500 emits a plurality of signals (T1, T2, T3, T4, T5), data synchronizing signals (Sync), and beams radiated from the radiation elements to select each array element input from the data distribution unit (300). Each signal applied by the phase calculation unit 400 and information such as a mode signal for selecting a shape and an operation mode, an address signal for selecting an array element for irradiating beams, a repetition period for beam steering of each array element, and the like. Fixed control signal (START / PWR / EOP / RRG) for controlling beam steering according to the setting phase value (P_data) for the device, address selection signal (EWR_WRRG) for selecting the array element to record the displacement data, addressing The signal CNT and the phase control data D are generated and output to the main board (not shown) connected to the connectors 1 and 2 to control the steering angle in the irradiation of the beam through each phase shifter constituting the array module.

In the state in which the steering of the beam irradiated from the array device is controlled through the above process, the abnormality detection unit 600 uses an initial phase value by using a check signal (Check) applied from a main board (not shown) connected through the connector 3. Phase value information of the main board and operation information of the array element are processed, and as a result, the information BSU_data is output and transmitted to the PC A through the data converter 200.

In addition, whether or not the phase value calculated by the phase calculation unit 400 is normally calculated and the communication loop between the communication distributor is normally formed, and whether the normal communication is being performed, such as to diagnose the overall state according to the operation Information is transmitted to the PC (A) through the data conversion unit (200).

In the above, a preferred embodiment of a beam steering control apparatus for a phased array antenna according to the present invention has been described. However, the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to do this and this also belongs to the scope of the present invention.

 As described above, according to the beam steering control apparatus of the phased array antenna according to the present invention, in operating the phased array antenna, by stably controlling the steering of the beam irradiated from each array element, the performance of the antenna and beam steering Reliability is provided.

Claims (8)

A controller for controlling the overall operation of the phased array antenna; An interface unit connected to the controller via serial communication to interface various signals, control results, and abnormality check information for beam steering control in each array element of a phased array antenna by serial communication; A data converter configured to extract data and command data including pulses for data latches, data setting values, beam steering commands, mode settings, and operation methods from signals applied from the interface unit; Data including a data setting value received according to a data latch pulse applied by the data converter and information for determining a beam steering command, a mode setting, and an operation method, and data according to a mode setting after latching the command A data distribution unit for distributing values; A phase calculator configured to calculate and set a phase value for beam steering of each array element from data applied by the data distributor; Fixed control signals (START / PWR / EOP / RRG) and displacements for controlling beam steering according to various control data and control information input from the data distribution unit and setting phase values for each array element applied by the phase calculator. A control unit which controls steering of the beam of the array element by generating an array element selection signal EWR_WRRG, an addressing signal CNT, and phase control data D for recording data; The initial phase value, the phase value information of the main board, and the operation information of the array element are processed by using a check signal (Check) applied from the main board. As a result, whether the information (BSU_data) and the phase value are normally calculated, and between the communication distributor And an abnormality detection unit for diagnosing whether the communication loop is normally formed and transmitting the abnormality detection unit to the controller through the data conversion unit. The method according to claim 1, The data distribution unit includes a plurality of signals T1, T2, T3, T4, and T5 for selecting an array element from a control signal applied thereto, a synchronization signal for transmitting data, and a beam steering angle data for an X axis. ), The beam steering angle data (Dely), the frequency data (f) for the Y axis, the check phase for checking the operation of each phase shifter constituting the array element, the shape of the beam radiated from the radiation element and the operation mode. A beam steering control apparatus of a phased array antenna for extracting a mode signal for selection, an address signal for selecting an array element for irradiating beams, and a repetition period for beam steering operations of each array element. The method according to claim 1, And the data distribution unit outputs a check time determination signal (read) for causing the abnormality detection unit to check an operation state of each array element. The method according to claim 1, The phase calculator is configured to check beam steering angle data Delx for the X axis and beam steering angle data Dely for the Y axis, beam steering frequency data f, and an operation of the array element applied by the data distributor. A beam steering control device for a phased array antenna for calculating and setting a phase value of each array element from data. The method according to claim 1, The control unit selects a plurality of signals (T1, T2, T3, T4, T5), a data synchronization signal (Sync) for selecting an array element input from the data distribution unit, a shape of a beam emitted from the array element, and an operation mode. The mode signal for the beam, the address signal for selecting the array element to irradiate the beam, the information of the repetition period for beam steering of each array element, and the beam according to the setting phase value P_data for each array element applied by the phase calculator. A fixed control signal (START / PWR / EOP / RRG) for controlling steering and an address selection signal (EWR_WRRG), an addressing signal (CNT), and a phase control data (D) for selecting an array element for recording the displacement data. Beam steering control device of the phased array antenna to generate and control the steering of the beam of the array element. The method of claim 1, wherein the data distribution unit A decoder which decodes the modulated instruction data and matches the pulse signal Strobe for data latching; A first data selector which selects data applied by the data converter according to a command applied by the decoder to generate motion data for beam steering of an array element; A multiplier for multiplying frequency data (F) for beam irradiation by beam steering angle data of the X and Y axes to determine a steering angle with respect to the X and Y axes for the beam to be irradiated; A second data selector for selecting a steering angle with respect to the X or Y axis determined by the multiplier; RAM for storing phase control data for beam irradiation control of each array element; A first mux for comparing whether the address of the array element to which the beam irradiation is controlled coincides with the value of the controlled address; A second mux for multiplexing a clock and a clock (Mem_clk) for storing beam steering and abnormality check results to select a clock to allow the RAM to store data; A beam steering control apparatus for a phased array antenna comprising a third mux for determining a phase control value with respect to beam steering data of a selected X or Y axis. The method of claim 1, wherein the phase calculation unit A first ROM for determining a position compensation value for beam steering according to array element address information CNT for selecting beam steering; A third multiplier for multiplying the beam steering frequency data f with a position compensation value for the beam steering determined in the first ROM; A second multiplier for multiplying array element address information (CNT) for selecting an operation of beam steering with beam steering data (Dely) for the Y axis; A first mux for multiplexing the beam steering data Dely for the Y axis and the array element address information CNT for selecting the beam steering operation to compensate for the arrangement of the array elements mechanically; A first multiplier for multiplying array element address information (CNT) for selecting an operation of beam steering with beam steering data (Delx) for the X-axis; A first adder for adding the first mux and the output signal of the first multiplier; A second adder for adding output signals of the second multiplier and the third multiplier; A third adder for adding output signals of the first adder and the second adder; A fourth adder for adding the determined initial phase and an output signal of the third adder; A second ROM for determining the shape of the beam from the array element address information (CNT) for selecting an operation of beam steering; A second mux for selecting one of four beam shapes determined in the second ROM by multiplexing a beam selection signal and a beam shape determined in the second ROM; A fifth adder for adding output signals of the fourth adder and the second mux; The phase value determined through calculation is output when the test signal is 'high' level with respect to the phase determination values determined by the fourth adder and the fifth adder, and the phase value to be tested is output when the test signal is 'low' level. A third mux to make; And a selector for determining a phase value applied from the third mux according to a clock type (CLK, CLK1, CLK2). The method of claim 1, wherein the control unit A first counter for generating an internal block control pulse; A timing pulse generator for generating an array element selection pulse for beam steering control; A second counter for counting the array element selection pulses; A first control signal generator for matching phase control data to pulses for beam steering control on an X axis; A second control signal generator for generating and outputting a fixed control signal START / PWR / EP / RRG for each array element; An address pulse generator for generating a pulse signal for addressing each array element; A phased array antenna including a control data generator for generating data for phase control according to the phase control data applied from the first control signal generator, the fixed control signal applied from the second control signal generator, and a phase value for beam steering; Beam steering control system.

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