WO2017146020A1 - アレーアンテナ装置およびその校正方法 - Google Patents
アレーアンテナ装置およびその校正方法 Download PDFInfo
- Publication number
- WO2017146020A1 WO2017146020A1 PCT/JP2017/006293 JP2017006293W WO2017146020A1 WO 2017146020 A1 WO2017146020 A1 WO 2017146020A1 JP 2017006293 W JP2017006293 W JP 2017006293W WO 2017146020 A1 WO2017146020 A1 WO 2017146020A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- reception
- signal
- calibration
- circuits
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/267—Phased-array testing or checking devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0025—Modular arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
Definitions
- the present invention relates to an array antenna apparatus used for applications such as radar and wireless communication, and a calibration method thereof.
- the phased array antenna can scan the beam electronically with the array antenna device physically fixed, that is, by electrical control of the element antenna, it is possible to perform high-speed beam control and multi-beam formation. Therefore, it is used for applications such as radar and wireless communication.
- it is important to calibrate the initial variation of the transmission circuit and the reception circuit provided for each element antenna.
- the calibration of the array antenna device is usually performed using a measuring instrument in a test site such as an anechoic chamber.
- a calibration antenna is installed at a position away from the array antenna device by a predetermined distance so as to face the array antenna device.
- the array antenna device and the calibration antenna are connected to a measuring instrument.
- signals transmitted from the respective element antennas constituting the array antenna apparatus are sequentially received by the calibration antenna.
- the arithmetic unit calculates the variation between the signals, and calibration is performed to compensate for the variation.
- equipment for an anechoic chamber is usually large and measuring instruments are generally expensive, so capital investment is costly.
- a dedicated antenna is required because a calibration antenna is installed separately from the linear array antenna for calibration.
- the receiving linear array antenna is equipped with a receiving calibration antenna and the receiving linear array antenna is equipped with a transmitting calibration antenna, the calibration linear array antenna is limited to transmission only or reception only. Not applicable to array antennas.
- the array antenna array is limited to a linear shape, and cannot be applied to, for example, a planar array antenna generally used in radar, wireless communication, and the like.
- Patent Document 1 only the phase theoretically calculated from the wavelength and distance is corrected for the difference in distance between each element antenna of the linear array antenna and the calibration antenna, and the amplitude correction is taken into consideration. It has not been. Also, in the planar array antenna, the array of element antennas is various, such as the electric field surface direction, the magnetic field surface direction, and the oblique direction, so that there is a problem that appropriate phase correction cannot be performed with values theoretically calculated from the wavelength and distance. Arise.
- the present invention has been made to solve the above-described problems, and in an array antenna apparatus that includes an array antenna and a transmission / reception circuit and performs calibration by the array antenna apparatus itself, appropriately corrects amplitude and phase. It is an object of the present invention to obtain an array antenna device and a calibration method thereof.
- the present invention includes a plurality of element antennas, a transmission / reception module provided in each of the plurality of element antennas, having a transmission circuit, a reception circuit, and a transmission / reception switching unit, and a signal transmitter for generating a signal for transmission
- a distributor for distributing a signal output from the signal transmitter to the transmission circuits, a synthesizer for synthesizing signals received by the reception circuits, and a signal synthesized by the synthesizer
- a receiver having a signal detection unit for detecting the amplitude and phase of the received signal; and control and transmission / reception of the amplitude and phase of the signal passing through the transmission circuit and the reception circuit of each transmission / reception module according to a desired control signal
- a detection signal from the signal detection unit is transmitted between each element antenna of the transmission / reception module.
- a reception control unit that performs calibration of amplitude and phase of the receiving circuit and the transmitting circuit according to the calibration values obtained
- the present invention can provide an array antenna apparatus and a calibration method thereof that can appropriately correct amplitude and phase in an array antenna apparatus that includes an array antenna and a transmission / reception circuit and performs calibration by the array antenna apparatus itself.
- 5 is a schematic operation flowchart showing an example of an operation at the time of calibration of the array antenna device according to the first to third embodiments of the present invention. It is a schematic operation
- FIG. 1 and 2 are diagrams schematically showing a configuration of an array antenna apparatus according to Embodiment 1 of the present invention.
- a transmission / reception module 200 is connected to each element antenna 100.
- a transmission amplification unit 211 with variable gain, a transmission phase shift unit 212, and a transmission operation switching switch 213 that is an operation switching unit that switches between operation and non-operation constitute a transmission circuit TC.
- the reception amplification unit 221 with variable gain, the reception phase shift unit 222, and the reception operation switching switch 223 that is an operation switching unit that switches between operation and non-operation constitute a reception circuit RC.
- a transmission / reception switching switch 231 that is a transmission / reception switching unit is provided between the element antenna 100 and the transmission circuit TC and the reception circuit RC.
- the signal from the signal transmitter 300 is distributed and supplied to each transmission / reception module 200 via the distributor 310.
- the reception signals of the respective transmission / reception modules 200 are combined by the combiner 410 and sent to the receiver 400.
- the element antenna 100, the transmission / reception module 200, the signal transmitter 300, the distributor 310, the receiver 400, and the combiner 410 represent the state of high-frequency signal exchange in the array antenna apparatus.
- the arrangement of the element antennas 100 is schematically drawn in a straight line, but the same applies to the case where the element antennas are arranged in a plane.
- FIG. 6 and 7 are front views, for example, viewed from the right side of FIG. 1, for illustrating an example of the arrangement of the element antennas 100.
- FIG. 6 shows a linear shape of the element antenna 100 as shown in FIG. 7 shows a case where the element antennas 100 are arranged vertically and horizontally in a planar shape.
- the case where the number of element antennas is four will be described below.
- the number of element antennas is not limited to this. It is sufficient that a plurality of element antennas are arranged.
- the receiver 400 includes a signal detector 420 that detects the amplitude and phase of the signal received by the array antenna apparatus.
- the detection result of the signal detection unit 420 is input to the transmission / reception control device 500 as a detection signal.
- the transmission / reception control apparatus 500 is a control unit of the array antenna apparatus
- FIG. 8 is a schematic functional block diagram of the transmission / reception control apparatus 500.
- 8 includes a transmission / reception control unit 510, a calibration signal calculation unit 520, and a storage unit 530.
- FIG. 9 is a diagram illustrating an example of a hardware configuration when the transmission / reception control device 500 is configured by a computer, for example.
- a transmission / reception control device 500 configured as a computer 500a inputs / outputs signals such as data to / from the signal transmitter 300, the receiver 400, each transmission / reception module 200, and other devices (not shown) via the interface 11.
- the memory 13 stores a program of functions shown in each functional block shown in FIG. 8 and data used for control processing.
- the data used for the control processing is the mutual coupling amplitude phase information 531 stored in the storage unit 530 shown in FIG.
- the processor 12 performs arithmetic processing on a signal input from the outside via the interface 11 according to the program and data stored in the memory 13, and outputs the arithmetic processing result via the interface 11.
- the human interface (HI) 14 includes a data input device and a display for the worker. Data is input from the HI 14 as necessary, or the state of the array antenna device is monitored by a display.
- the memory 13 corresponds to the storage unit 530 in FIG. Note that the transmission / reception control device 500 may be configured by a digital circuit for each functional block shown in FIG. 8, for example.
- the detection signal DS from the signal detection unit 420 is input to the calibration signal calculation unit 520.
- the calibration value CV which is the calculation result in the calibration signal calculation unit 520, is sent to the transmission / reception control unit 510.
- the calibration signal calculation unit 520 transmits and receives the detection signal of the signal detection unit 420 during the calibration operation among the mutual coupling amplitude phase information 531 stored in the storage unit 530 in advance. Correction is performed according to the mutual coupling amplitude phase information corresponding to the antennas 100. Further, a calibration value CV for compensating the corrected value with respect to the set value is obtained.
- the transmission / reception control unit 510 calibrates the amplitude and phase of the transmission circuit TC and the reception circuit RC according to the calibration value CV obtained by the calibration signal calculation unit 520.
- the transmission / reception control unit 510 or the calibration signal calculation unit 520 may output a calibration signal command CAS to the signal transmitter 300 and generate a signal dedicated to calibration from the signal transmitter 300.
- the transmission / reception control unit 510 performs transmission and reception of the transmission circuit TC of each transmission / reception module 200 and the amplification units 211 and 221 of the reception circuit RC according to a desired control signal CS for controlling the array antenna apparatus.
- the phase sections 212 and 222 and the operation switching switches 213 and 223 are controlled to control the amplitude and phase of signals passing through the transmission circuit TC and the reception circuit RC, and to switch transmission / reception to perform transmission / reception control. Further, switching between the transmission circuit TC and reception circuit RC of each transmission / reception module 200 and the element antenna 100 controls the transmission / reception switching switch 231.
- the control signal CS at the normal time is actually obtained from the received signal at the receiver 400 and other signals.
- the calibration of the array antenna apparatus is such that the reference amplitude value and phase value of the transmission circuit TC and the reception circuit RC of each transmission / reception module 200 are adjusted and matched so as to have desired set values.
- calibration is performed based on a detection signal DS obtained by receiving a signal transmitted from the element antenna 100 through one transmission circuit TC and passing through one reception circuit RC by the element antenna 100. Done.
- the obtained detection signal DS includes characteristics that the signal receives in the space between the transmitted element antenna and the received element antenna.
- the characteristics received by signals in the space between the individual element antennas are obtained in advance and stored in the storage unit 530 as mutual coupling amplitude phase information. Then, calibration is performed by correcting the detection signal DS obtained at the time of calibration with the mutual coupling amplitude phase information.
- each transmission / reception module 200 connected to the element antennas E01, E02, E04 has the transmission / reception switching switch 231 connected to the transmission circuit TC side, and the transmission / reception module 200 connected to the element antenna E03 has the transmission / reception switching switch 231 received by the reception circuit. Connected to the RC side.
- the signal transmitter 300 outputs the routes E01 ⁇ E03, E02 ⁇ E03, and E04 ⁇ E03 by sequentially switching the transmission operation switching switches 213 of the element antennas E01, E02, and E04 that are transmitting antennas.
- the signal information at the receiver 400 of the received signal can be obtained.
- the signal information is detected by the signal detection unit 420.
- each signal path usually has initial variations.
- the signal information obtained by the signal detection unit 420 includes variations in amplitude and phase.
- the physical distance between the element antennas is different, so that the space propagation conditions are also different, and a characteristic difference due to the influence is added.
- the arrangement direction is different in the electric field surface direction, magnetic field surface direction, diagonal direction, etc. Conditions are different.
- the mutual coupling amplitude phase information between the element antennas 100 is acquired in advance, and the detection signal DS having the signal information respectively obtained by the signal detection unit 420 is corrected with the mutual coupling amplitude phase information, respectively.
- the detection signal DS having the signal information respectively obtained by the signal detection unit 420 is corrected with the mutual coupling amplitude phase information, respectively.
- the mutual coupling amplitude phase information 531 between the element antennas 100 is stored in the storage unit 530 in advance.
- the calibration signal calculation unit 520 performs correction by dividing the detection signal DS obtained by the signal detection unit 420 by the mutual coupling amplitude phase information 531 between the element antennas 100 stored in the storage unit 530. Subsequently, a variation from the signal system of each signal path during calibration, more specifically, variation from the input side of the distributor 310 to the element antenna 100 is calculated, and a calibration value CV for compensating the variation is calculated.
- the transmission / reception controller 510 calibrates the array antenna by controlling each transmission / reception module 200 according to the calibration value CV.
- the signal S (t) Aexp (j ⁇ ) S (t): Signal A: Amplitude ⁇ : Phase
- the division by the detection signal DS which is complex number information indicating the amplitude A and phase ⁇ , and the mutual coupling amplitude phase information.
- the mutual coupling amplitude and phase information between the element antennas 100 is a measuring instrument such as a vector network analyzer represented by FIG. 1 in which only the element antennas 100 are separated and mutual coupling between the feeding points of the element antennas 100 is separately prepared. It can be obtained by testing at 10. If the above test is difficult, similar data can be obtained by calculation by electromagnetic field simulation or the like by a computer (not shown).
- the characteristic variation on the transmission circuit TC side of the element antennas E01, E02, and E04 is calibrated. It was.
- the transmission / reception modules 200 connected to the element antennas E01, E02, and E04 are switched between transmission and reception.
- the transmission / reception switching switch 231 is connected to the transmission circuit TC side of the transmission / reception module 200 connected to the reception circuit RC side and the element antenna E03.
- the reception antennas are also used for the routes E03 ⁇ E01, E03 ⁇ E02, and E03 ⁇ E04 in the same manner as described above. It is possible to calibrate the characteristic variation on the receiving circuit RC side of E01, E02, and E04.
- FIG. 10 is a schematic operation flowchart showing an example of the operation at the time of calibration of the transmission circuit TC of the array antenna apparatus according to the present invention.
- mutual coupling amplitude phase information between the element antennas 100 is acquired in advance by a simulation by the measuring instrument 10 or a computer (step S1).
- the mutual coupling amplitude phase information 531 is recorded in the storage unit 530 of the transmission / reception control device 500 (step S2).
- the transmission / reception control unit 510 of the transmission / reception control device 500 selects an element antenna to be a reception antenna according to a schedule stored in advance in the storage unit 530 or an operator input from the IH 14 (step S3). Then, a calibration signal command CAS is sent to the signal transmitter 300 to generate a calibration signal, each transmission / reception module 200 is controlled, a signal is transmitted by switching the element antenna to be a transmission antenna, and the signal detector 420 receives the signal. (Step S4).
- the calibration signal calculation unit 520 uses the detection signal DS indicating the reception signal obtained by the signal detection unit 420 as the mutual coupling amplitude phase information stored in the storage unit 530 between the element antennas 100 that have transmitted and received signals. Correction is performed by dividing by the combined amplitude phase information (step S5). The correction is continued until correction is performed for all transmission antennas (step S6).
- the calibration signal calculation unit 520 calculates the variation between the elements of the corrected signal, and calculates the calibration value CV for the transmission circuit TC of each transmission antenna (step S7).
- the calibration value CV is composed of amplitude and phase values for compensating for variations in each corrected signal.
- the transmission / reception control unit 510 sets the amplitude and phase according to the calibration value CV in the transmission circuit TC of the transmission / reception module 200 of each transmission antenna (step S8).
- FIG. 3 and 4 are diagrams schematically showing a configuration of an array antenna apparatus according to Embodiment 2 of the present invention.
- the transmission operation switching switch 213 and the reception operation switching switch 223 constituting the operation switching unit are used for switching the operations of the transmission circuit TC and the reception circuit RC in the transmission / reception module 200.
- a transmission variable attenuator 214 and a reception variable attenuator 224 may be used.
- the transmission / reception control unit 510 of the transmission / reception control device 500 can also switch the operation of the transmission circuit TC and the reception circuit RC by adjusting these attenuation amounts.
- a transmission variable amplifier 215 and a reception variable amplifier 225 may be used.
- the operation of the transmission circuit TC and the reception circuit RC can also be switched by adjusting the amplification factors of these amplifiers.
- FIG. FIG. 5 is a diagram schematically showing a configuration of an array antenna apparatus according to Embodiment 3 of the present invention.
- the connection between the transmission circuit TC and the reception circuit RC of the transmission / reception module 200 and the element antenna 100 is switched by the transmission / reception switching switch 231 that constitutes the transmission / reception switching unit.
- the transmission / reception switching switch 231 that constitutes the transmission / reception switching unit.
- a circulator 232 may be used instead of the changeover switch 231.
- the transmission circuit TC of the element antenna (E03) itself that receives the calibration signal is not a calibration target. That is, the transmission circuit TC in the connected transmission / reception module 200 cannot be transmitted and received by the reception circuit RC by one element antenna. Therefore, the circulator 232 is provided, and the transmission operation switching switch 213 and the reception operation switching switch 223 of the element antenna (E03) are set in the operation state, so that the signal transmitted by the element antenna (E03) is transmitted to the element antenna (E03). ) Can be calibrated with the transmission circuit TC of another element antenna in the same manner as the procedure described in the first embodiment. The same applies to the receiving circuit RC. In this case, the self-coupled amplitude phase information about the space until the signal transmitted from the element antenna (E03) is received by the element antenna (E03) is the mutual coupling amplitude phase information.
- Embodiment 4 FIG.
- one reception antenna is used for calibrating the variation in characteristics on the transmission circuit TC side.
- a plurality of reception antennas may be prepared.
- one transmission antenna is used for calibrating the characteristic variation on the reception circuit RC side, but a plurality of transmission antennas may be prepared.
- the reception antenna E02 and the reception antenna E03 are two of the element antennas, and the calibration value is calculated based on the above procedure, the calibration value of the transmission circuit TC obtained using the reception antenna E02, and the reception antenna Two calibration values of the transmission circuit TC acquired using E03 are obtained.
- the following processing is performed in consideration of variations in the receiving circuits RC of the receiving antennas E02 and E03.
- the average values of the amplitude and phase calibration values of each transmission circuit TC are calculated.
- each of the amplitude and phase calibration values is normalized with the calculated average value. Thereby, an offset is applied to the amplitude and phase so that the average value of the calibration values of the amplitude and phase of all the transmission circuits TC becomes zero. Similar calculations are performed for the calibration values of the amplitude and phase of the transmission circuit TC acquired by the reception antenna E03. Then, the result obtained above for each element of the transmission circuit TC, that is, the amplitude and phase calibration values obtained by using a plurality of receiving antennas are averaged to obtain the calibration value of the transmission circuit TC. One can be defined.
- FIG. 11 is a schematic operation flowchart showing an example of the operation at the time of calibration of the transmission circuit TC of the array antenna apparatus according to the fourth embodiment. 10 that are the same as those in FIG. 10 are denoted by the same reference numerals, and description thereof is omitted.
- the transmission / reception control unit 510 of the transmission / reception control device 500 selects a plurality of reception antennas to be used for calibration according to a schedule stored in advance in the storage unit 530 or an operator input from the IH 14 (step S′1). Then, step S3 to step S7 in FIG. 10 are executed by the transmission / reception control device 500, and the calibration value is calculated by the selected receiving antenna. Further, the calibration signal calculation unit 520 applies an offset to each of the amplitude and phase so that the average value of all the obtained transmission antenna calibration values becomes zero, and calculates the offset amplitude and phase as a calibration value. (Step S'2).
- step S′3 The above operation is executed for all selected receiving antennas.
- step S′4 the calibration signal calculation unit 520 calculates the average of the calibration values of all receiving antennas as the final calibration value CV (step S′4).
- the calibration values obtained in step S7 are those before the averaging process, for example, the phases of the four elements are (30 °, 60 °, ⁇ 40 °, 10 °).
- step S′2 an average value of the above values is obtained. In this case, the average value is calculated as + 15 °. Normalization is performed using this average value, so that (15 °, 45 °, ⁇ 55 °, ⁇ 5 °) is obtained.
- step S′4 is also described using this example, it is assumed that the result obtained in step S7 is (50 °, 80 °, ⁇ 20 °, 30 °). That is, it is assumed that there is a characteristic difference of 20 ° between the receiving circuits.
- this average value is normalized by + 35 °, and eventually becomes the same as above (15 °, 45 °, ⁇ 55 °, ⁇ 5 °).
- the result obtained between a plurality of receiving elements in step S′4 is finally averaged, and finally, one calibration value is obtained. decide.
- the characteristic variation on the reception circuit RC side can be similarly calibrated with a plurality of transmission antennas.
- the calibration accuracy can be improved by increasing the amount of information by distributing a plurality of systems for obtaining calibration values.
- the transmission circuit TC of the element antenna itself that receives the calibration signal is not a calibration target.
- the other elements come to play the role according to the apparatus configuration of the fourth embodiment, even the apparatus that does not use the circulator 232 can perform the calibration according to the present invention.
- the present invention provides a plurality of element antennas (100), a transmission circuit (TC), a reception circuit (RC), and a transmission / reception switching unit (231-2) provided in each of the plurality of element antennas.
- a receiver (400) having a signal detector (420) for receiving the signal synthesized by the synthesizer and detecting the amplitude and phase of the received signal, and each transmission / reception according to a desired control signal (CS) Control of the amplitude and phase of the signal passing through the transmission circuit (TC) and the reception circuit (RC) of the module and switching of transmission / reception are performed to perform transmission / reception control, and at the time of calibration of the transmission / reception
- Each of the transceiver modules (200) includes an amplifying unit (211, 221) for amplifying a signal, a phase shifting unit (212, 222) for changing the phase, and an operation switching unit (213-5, 223-5) for switching operation / non-operation.
- ) Including the transmission circuit (TC) and the reception circuit (RC), and the transmission / reception switching unit (231-2) connected between the transmission circuit and the reception circuit and the element antenna to switch transmission / reception.
- the transmission / reception control device (500) performs transmission / reception control by controlling and switching the amplitude and phase of each transmission / reception module, and a storage unit (530) storing the mutual coupling amplitude / phase information.
- a calibration signal calculation unit (520) During calibration of the transmission / reception module, the transmission / reception control unit (510) operates the transmission circuit to transmit a signal to be received by the reception circuit, and the calibration signal calculation unit (520) is configured to transmit the signal detection unit (420). ) To obtain a calibration value for performing compensation for a set value after correcting the detection signal according to the corresponding mutual coupling amplitude phase information, and the transmission / reception control unit (510) determines the transmission circuit and the transmitter according to the calibration value. Calibrate the amplitude and phase of the receiver circuit.
- the operation switching units (213-5, 223-5) of the transmission / reception modules (200) include switching switches (213, 223).
- each operation switching unit (213-5, 223-5) of each transmission / reception module (200) includes a variable attenuator (214, 224).
- the operation switching units (213-5, 223-5) of the transmission / reception modules (200) are variable amplifiers (215, 225).
- Each transmission / reception switching unit (231-2) includes a switching switch (231).
- Each transmission / reception switching unit (231-2) includes a circulator (232).
- the transmission / reception controller (510) operates one of the transmission circuits to transmit a signal, operates one of the reception circuits to receive a signal,
- the calibration signal calculation unit (520) uses the detection signal detected by the signal detection unit (420) and the corresponding mutual coupling amplitude phase information from the storage unit (530) as complex numbers, and converts the detection signal into the detection signal. The correction is performed by dividing by the mutual coupling amplitude phase information.
- the transmission / reception control unit (510) performs calibration between the plurality of transmission circuits by operating one of the reception circuits and transmitting a signal by sequentially operating the plurality of transmission circuits. .
- the transmission / reception control unit (510) performs calibration between the plurality of reception circuits by operating one of the transmission circuits and sequentially operating the plurality of reception circuits to receive signals. .
- the transmission / reception control unit (510) operates a plurality of the transmission circuits (TC) in order while operating one of the reception circuits (RC), thereby transmitting a plurality of the transmissions. Calibration between circuits is performed, and a plurality of reception circuits are sequentially switched to perform calibration between a plurality of transmission circuits. Further, the transmission / reception control unit (510) operates a plurality of the reception circuits (RC) in order while operating one of the transmission circuits (TC) to receive a signal, thereby receiving a plurality of the reception circuits. Calibration between circuits is performed, and a plurality of transmission circuits are sequentially switched to perform calibration between a plurality of reception circuits.
- the calibration signal calculation unit (520) normalizes a calibration value between the transmission circuits (TC) obtained by operating one of the reception circuits (RC) with an average value of calibration values, and Calibration is performed between a plurality of transmission circuits by averaging between calibration values respectively obtained by all the reception circuits that are operated.
- the calibration signal calculation unit (520) normalizes a calibration value between the reception circuits (RC) obtained by operating one of the transmission circuits (TC) with an average value of calibration values, and Calibration is performed between a plurality of receiving circuits by averaging between the calibration values respectively obtained by all of the operated transmission circuits.
- a transmission / reception module (200) having a transmission circuit (TC), a reception circuit (RC), and a transmission / reception switching unit (231-2) is connected to each of the plurality of element antennas (100).
- the signal transmitter (300) while controlling the amplitude and phase of the signal passing through the transmission circuit (TC) and the reception circuit (RC) of each transmission / reception module (200) and switching the transmission / reception.
- a signal to be transmitted from is distributed to each transmission circuit (TC) by a distributor (310) and transmitted, and a signal received from each reception circuit (RC) is synthesized by a synthesizer (410).
- a detection signal obtained by detecting the amplitude and phase of the signal received by the receiver (400) was obtained by correcting the mutual coupling amplitude phase information in the space between the element antennas. It consists of a calibration method for an array antenna apparatus that performs calibration according to calibration values.
- the present invention is not limited to the above embodiments, and includes all possible combinations thereof.
- the present invention can be applied to array antenna devices in various fields.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radio Transmission System (AREA)
Abstract
Description
図1、図2はこの発明の実施の形態1に係るアレーアンテナ装置の構成を模式的に示す図である。
図9は送受信制御装置500を例えばコンピュータで構成した場合のハードウェア構成の一例を示す図である。コンピュータ500aとして構成される送受信制御装置500は、信号発信器300、受信機400、各送受信モジュール200および図示しない他の装置とインターフェース11を介してデータ等の信号の入出力を行う。メモリ13には例えば図8で示した各機能ブロックで示された機能のプログラムおよび制御処理に使用するデータが格納されている。制御処理に使用するデータは、ここでは図8に示した記憶部530に格納された相互結合振幅位相情報531となる。そしてプロセッサ12は、インターフェース11を介して外部から入力された信号に対して、メモリ13に格納されたプログラムおよびデータに従って演算処理を行い、演算処理結果をインターフェース11を介して出力する。ヒューマンインタフェース(HI)14は作業者のためのデータ入力装置、表示器等からなる。必要に応じてHI14からデータ入力を行ったり、表示器でアレーアンテナ装置の状態をモニタする。メモリ13は図8の記憶部530に相当する。
なお、送受信制御装置500は、例えば図8に示した機能ブロック毎にディジタル回路で構成するようにしてもよい。
S(t)=Aexp(jφ)
S(t):信号
A:振幅
φ:位相
の振幅Aと位相φを示す複素数情報である検出信号DSおよび相互結合振幅位相情報による除算を行う。
図3、図4はこの発明の実施の形態2に係るアレーアンテナ装置の構成を模式的に示す図である。上記実施の形態1では送受信モジュール200内の送信回路TCと受信回路RCのそれぞれの動作の切替えに動作切替部を構成する送信動作切替用スイッチ213と受信動作切替用スイッチ223を用いたが、図3に示すように送信用可変減衰器214と受信用可変減衰器224を用いてもよい。送受信制御装置500の送受信制御部510により、これらの減衰量を調整することによっても、送信回路TCと受信回路RCの動作の切替えを行うことができる。
図5はこの発明の実施の形態3に係るアレーアンテナ装置の構成を模式的に示す図である。上記実施の形態1では送受信モジュール200の送信回路TCおよび受信回路RCと素子アンテナ100との接続を送受切替部を構成する送受切替用スイッチ231にて切替えていたが、図5に示すように送受切替用スイッチ231の代わりにサーキュレータ232を用いてもよい。
なお、この場合素子アンテナ(E03)から送信された信号がまた素子アンテナ(E03)で受信されるまでの空間についての自己結合振幅位相情報が、相互結合振幅位相情報になる。
上記実施の形態1から3では、送信回路TC側の特性ばらつきを校正する際の受信アンテナを1つとしたが、受信アンテナを複数用意しても良い。同様に、受信回路RC側の特性ばらつきを校正する際の送信アンテナを1つとしたが、送信アンテナを複数用意しても良い。
受信アンテナE02により取得した送信回路TCの振幅、位相の校正値について、各送信回路TCの振幅と位相の校正値の各々の平均値を算出する。そして、振幅と位相の校正値のそれぞれを算出された平均値で規格化する。これにより、全送信回路TCの振幅と位相の校正値の各々の平均値がゼロとなるようなオフセットを振幅、位相にかける。受信アンテナE03により取得した送信回路TCの振幅、位相の校正値についても同様の演算を行う。そして、送信回路TCの各素子に対して上記で得られた結果、すなわち複数の受信アンテナを使用して得られた振幅、位相の校正値をそれぞれ平均することで、送信回路TCの校正値を1つに定めることができる。
ステップS7で得られた校正値は平均処理する前のもので、例えば4素子の位相が(30°、60°、-40°、10°)のようなものである。ステップS’2では、上記値の平均値を求める。平均値はこの場合+15°と算出される。この平均値で規格化するので(15°、45°、-55°、-5°)のようになる。いうまでもなく校正とは相対値を平らにする行為なので、前者でも後者でもどちらもこの4素子の校正値に成り得る。
ステップS’4についてもこの例を用いて説明すれば、ステップS7で得られた結果が(50°、80°、-20°、30°)と仮定する。すなわち受信回路間に20°の特性差があったと仮定する。ステップS’2ではこの平均値の+35°の分だけ規格化されて、結局上記と同じ(15°、45°、-55°、-5°)となる。ただし、実際は測定誤差等の影響によりぴったり一致することはないため、最終的にステップS’4にて複数の受信素子間で得られた結果を平均することで、最終的に一つの校正値として決定する。
前記合成器で合成された信号を受信し、また受信した信号の振幅と位相を検出する信号検出部(420)を有する、受信機(400)と、所望の制御信号(CS)に従って前記各送受信モジュールの前記送信回路(TC)と前記受信回路(RC)を通過する信号の振幅と位相の制御および送受信の切替えを行って送受信制御を行うと共に、前記送受信モジュールの校正時に、前記信号検出部(420)からの検出信号を前記送受信モジュールの前記各素子アンテナ間の空間におけるそれぞれの相互結合振幅位相情報で補正して得た校正値に従って前記送信回路(TC)と前記受信回路(RC)の振幅と位相の校正を行う送受信制御装置(500)とを備えた、アレーアンテナ装置にある。
前記送受信制御装置(500)が、前記各送受信モジュールの振幅と位相の制御および切替えを行って送受信制御を行う送受信制御部(510)と、前記相互結合振幅位相情報を格納した記憶部(530)と、校正信号演算部(520)と、を含み、
前記送受信モジュールの校正時に、前記送受信制御部(510)が、前記送信回路を動作させて信号を送信させ前記受信回路で受信させ、前記校正信号演算部(520)が、前記信号検出部(420)の前記検出信号を対応する前記相互結合振幅位相情報に従って補正した後に設定値に対する補償を行うための前記校正値を求め、前記送受信制御部(510)が、前記校正値に従い前記送信回路および前記受信回路の振幅と位相を校正する。
また、前記各送受信モジュール(200)の前記各動作切替部(213-5,223-5)が切替用スイッチ(213,223)からなる。
また、前記各送受信モジュール(200)の前記各動作切替部(213-5,223-5)が可変増幅器(215,225)からなる。
また、前記各送受切替部(231-2)が、切替用スイッチ(231)からなる。
また、前記各送受切替部(231-2)が、サーキュレータ(232)からなる。
また、前記送受信制御部(510)が、前記送信回路の内の1つを動作させて信号を送信させ、前記受信回路の内の1つを動作させて信号を受信させ、
前記校正信号演算部(520)が、前記信号検出部(420)で検出した前記検出信号と前記記憶部(530)からの対応する前記相互結合振幅位相情報とを複素数として、前記検出信号を前記相互結合振幅位相情報にて除算することで前記補正を行う。
また、前記送受信制御部(510)が、前記受信回路の1つを動作させながら、複数の前記送信回路を順番に動作させて信号を送信させることで、複数の前記送信回路間の校正を行う。
また、前記送受信制御部(510)が、前記送信回路の1つを動作させながら、複数の前記受信回路を順番に動作させて信号を受信させることで、複数の前記受信回路間の校正を行う。
また、前記送受信制御部(510)が、前記送信回路(TC)の1つを動作させながら、複数の前記受信回路(RC)を順番に動作させて信号を受信させることで、複数の前記受信回路間の校正を行い、かつ、複数の前記送信回路を順に切替えて複数の受信回路間の校正をそれぞれ行う。
また、前記校正信号演算部(520)が、前記受信回路(RC)の1つを動作させて得られた前記送信回路(TC)間の校正値を校正値の平均値で規格化し、かつ、動作させた全ての前記受信回路でそれぞれ求めた校正値間で平均して複数の送信回路間の校正を行う。
また、前記校正信号演算部(520)が、前記送信回路(TC)の1つを動作させて得られた前記受信回路(RC)間の校正値を校正値の平均値で規格化し、かつ、動作させた全ての前記送信回路でそれぞれ求めた校正値間で平均して複数の受信回路間の校正を行う。
前記各送受信モジュールの校正時に、前記受信機(400)で受信した信号の振幅と位相を検出した検出信号を、前記各素子アンテナ間の空間におけるそれぞれの相互結合振幅位相情報で補正して得た校正値に従って校正を行う、アレーアンテナ装置の校正方法からなる。
Claims (15)
- 複数の素子アンテナと、
前記複数の素子アンテナのそれぞれに設けられた、送信回路と受信回路と送受切替部とを有する送受信モジュールと、
送信するための信号を発生する信号発信器と、
前記信号発信器の出力する信号を前記各送信回路に分配する分配器と、
前記各受信回路の受信された信号を合成する合成器と、
前記合成器で合成された信号を受信し、また受信した信号の振幅と位相を検出する信号検出部を有する、受信機と、
所望の制御信号に従って前記各送受信モジュールの前記送信回路と前記受信回路を通過する信号の振幅と位相の制御および送受信の切替えを行って送受信制御を行うと共に、前記送受信モジュールの校正時に、前記信号検出部からの検出信号を前記送受信モジュールの前記各素子アンテナ間の空間におけるそれぞれの相互結合振幅位相情報で補正して得た校正値に従って前記送信回路と前記受信回路の振幅と位相の校正を行う送受信制御装置と、
を備えた、アレーアンテナ装置。 - 前記各送受信モジュールが、
信号を増幅する増幅部と位相を変える移相部と動作非動作を切替える動作切替部とをそれぞれ含む前記送信回路および受信回路と、
前記送信回路および前記受信回路と前記素子アンテナの間に接続され送受信を切替える前記送受切替部と、を含み、
前記送受信制御装置が、
前記各送受信モジュールの振幅と位相の制御および切替えを行って送受信制御を行う送受信制御部と、
前記相互結合振幅位相情報を格納した記憶部と、
校正信号演算部と、を含み、
前記送受信モジュールの校正時に、前記送受信制御部が、前記送信回路を動作させて信号を送信させ前記受信回路で受信させ、前記校正信号演算部が、前記信号検出部の前記検出信号を対応する前記相互結合振幅位相情報に従って補正した後に設定値に対する補償を行うための前記校正値を求め、前記送受信制御部が、前記校正値に従い前記送信回路および前記受信回路の振幅と位相を校正する、
請求項1に記載のアレーアンテナ装置。 - 前記各送受信モジュールの前記各動作切替部が切替用スイッチからなる、請求項2に記載のアレーアンテナ装置。
- 前記各送受信モジュールの前記各動作切替部が可変減衰器からなる、請求項2に記載のアレーアンテナ装置。
- 前記各送受信モジュールの前記各動作切替部が可変増幅器からなる、請求項2に記載のアレーアンテナ装置。
- 前記各送受切替部が、切替用スイッチからなる、請求項2から5までのいずれか1項に記載のアレーアンテナ装置。
- 前記各送受切替部が、サーキュレータからなる、請求項2から5までのいずれか1項に記載のアレーアンテナ装置。
- 前記送受信制御部が、前記送信回路の内の1つを動作させて信号を送信させ、前記受信回路の内の1つを動作させて信号を受信させ、
前記校正信号演算部が、前記信号検出部で検出した前記検出信号と前記記憶部からの対応する前記相互結合振幅位相情報とを複素数として、前記検出信号を前記相互結合振幅位相情報にて除算することで前記補正を行う、請求項2から7までのいずれか1項に記載のアレーアンテナ装置。 - 前記送受信制御部が、前記受信回路の1つを動作させながら、複数の前記送信回路を順番に動作させて信号を送信させることで、複数の前記送信回路間の校正を行う、請求項8に記載のアレーアンテナ装置。
- 前記送受信制御部が、前記送信回路の1つを動作させながら、複数の前記受信回路を順番に動作させて信号を受信させることで、複数の前記受信回路間の校正を行う、請求項8に記載のアレーアンテナ装置。
- 前記送受信制御部が、前記受信回路の1つを動作させながら、複数の前記送信回路を順番に動作させて信号を送信させることで、複数の前記送信回路間の校正を行い、かつ、複数の前記受信回路を順に切替えて複数の送信回路間の校正をそれぞれ行う、請求項9に記載のアレーアンテナ装置。
- 前記送受信制御部が、前記送信回路の1つを動作させながら、複数の前記受信回路を順番に動作させて信号を受信させることで、複数の前記受信回路間の校正を行い、かつ、複数の前記送信回路を順に切替えて複数の受信回路間の校正をそれぞれ行う、請求項10に記載のアレーアンテナ装置。
- 前記校正信号演算部が、前記受信回路の1つを動作させて得られた前記送信回路間の校正値を校正値の平均値で規格化し、かつ、動作させた全ての前記受信回路でそれぞれ求めた校正値間で平均して複数の送信回路間の校正を行う、請求項11に記載のアレーアンテナ装置。
- 前記校正信号演算部が、前記送信回路の1つを動作させて得られた前記受信回路間の校正値を校正値の平均値で規格化し、かつ、動作させた全ての前記送信回路でそれぞれ求めた校正値間で平均して複数の受信回路間の校正を行う、請求項12に記載のアレーアンテナ装置。
- 複数の素子アンテナに、送信回路と受信回路と送受切替部とを有する送受信モジュールがそれぞれ接続され、送受信制御装置で、前記各送受信モジュールの前記送信回路と前記受信回路を通過する信号の振幅と位相の制御および送受信の切替えを行って制御しながら、信号発信器からの送信するための信号を分配器で前記各送信回路に分配して送信させ、また前記各受信回路からの受信された信号を合成器で合成し、合成された信号を受信機で受信するアレーアンテナ装置において、
前記各送受信モジュールの校正時に、前記受信機で受信した信号の振幅と位相を検出した検出信号を、前記各素子アンテナ間の空間におけるそれぞれの相互結合振幅位相情報で補正して得た校正値に従って校正を行う、アレーアンテナ装置の校正方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/076,787 US10355740B2 (en) | 2016-02-23 | 2017-02-21 | Array antenna device and calibration method therefor |
EP17756458.0A EP3422478B1 (en) | 2016-02-23 | 2017-02-21 | Array antenna device and calibration method therefor |
JP2018501690A JP6775571B2 (ja) | 2016-02-23 | 2017-02-21 | アレーアンテナ装置およびその校正方法 |
CN201780011739.4A CN108701899B (zh) | 2016-02-23 | 2017-02-21 | 阵列天线装置及其校正方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2016/055212 WO2017145257A1 (ja) | 2016-02-23 | 2016-02-23 | アレーアンテナ装置およびその校正方法 |
JPPCT/JP2016/055212 | 2016-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017146020A1 true WO2017146020A1 (ja) | 2017-08-31 |
Family
ID=59685968
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/055212 WO2017145257A1 (ja) | 2016-02-23 | 2016-02-23 | アレーアンテナ装置およびその校正方法 |
PCT/JP2017/006293 WO2017146020A1 (ja) | 2016-02-23 | 2017-02-21 | アレーアンテナ装置およびその校正方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/055212 WO2017145257A1 (ja) | 2016-02-23 | 2016-02-23 | アレーアンテナ装置およびその校正方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10355740B2 (ja) |
EP (1) | EP3422478B1 (ja) |
JP (1) | JP6775571B2 (ja) |
CN (1) | CN108701899B (ja) |
WO (2) | WO2017145257A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019161489A (ja) * | 2018-03-14 | 2019-09-19 | 日本電気株式会社 | 装置、装置による制御方法及びプログラム |
KR102060120B1 (ko) * | 2019-07-09 | 2019-12-27 | 국방과학연구소 | 능동 위상배열 안테나 장치 및 이의 송신채널 점검 방법 |
WO2020021812A1 (ja) * | 2018-07-26 | 2020-01-30 | 日立オートモティブシステムズ株式会社 | レーダセンサ |
WO2021117131A1 (ja) * | 2019-12-10 | 2021-06-17 | 三菱電機株式会社 | アンテナ装置及び校正方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106685495A (zh) * | 2015-11-05 | 2017-05-17 | 索尼公司 | 无线通信方法和无线通信设备 |
DE102016212136A1 (de) * | 2016-07-04 | 2018-01-04 | Laird Bochum GmbH | Verfahren und Vorrichtung zur Bestimmung einer Distanz sowie Fahrzeug |
CN110140256B (zh) * | 2016-12-29 | 2021-01-05 | 华为技术有限公司 | 一种天线及网络设备 |
CN107390192B (zh) * | 2017-09-20 | 2020-04-10 | 雷象科技(北京)有限公司 | 相控阵天气雷达快速幅度、相位一致性测量方法 |
CN109946662B (zh) * | 2019-05-06 | 2023-09-26 | 成都远望科技有限责任公司 | 一种相控阵天气雷达机内标校系统 |
CN113824512B (zh) * | 2021-09-13 | 2023-10-10 | 中信科移动通信技术股份有限公司 | 大规模天线调测方法、测试设备及计算机设备 |
CN116418376A (zh) * | 2021-12-29 | 2023-07-11 | 中兴通讯股份有限公司 | 天线解耦方法、电子设备和计算机可读存储介质 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09148836A (ja) * | 1995-11-21 | 1997-06-06 | Mitsubishi Electric Corp | アンテナ装置 |
JP2010034937A (ja) * | 2008-07-30 | 2010-02-12 | Sony Corp | 無線通信装置及び無線通信方法、並びにコンピューター・プログラム |
JP2014505392A (ja) * | 2010-12-01 | 2014-02-27 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 少なくとも1つのキャリブレーションパラメータを取得するための方法、及び、アンテナアレイ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6208287B1 (en) * | 1998-03-16 | 2001-03-27 | Raytheoncompany | Phased array antenna calibration system and method |
ID27970A (id) * | 1998-08-05 | 2001-05-03 | Sanyo Electric Co | Radas radio dan metode kalibrasi untuk itu |
JP2002135187A (ja) * | 2000-10-24 | 2002-05-10 | Sony Corp | 受信機 |
KR100913883B1 (ko) * | 2002-04-19 | 2009-08-26 | 삼성전자주식회사 | 스마트 안테나의 출력 신호 왜곡 측정 및 보상 장치 및 방법 |
US7031669B2 (en) * | 2002-09-10 | 2006-04-18 | Cognio, Inc. | Techniques for correcting for phase and amplitude offsets in a MIMO radio device |
CN1176555C (zh) * | 2002-12-25 | 2004-11-17 | 大唐移动通信设备有限公司 | 一种对智能天线阵系统进行实时校准的方法 |
JP4478606B2 (ja) | 2005-05-19 | 2010-06-09 | 富士通株式会社 | リニアアレイアンテナの校正装置及び校正方法 |
US8754811B1 (en) * | 2011-04-08 | 2014-06-17 | Lockheed Martin Corporation | Digital beamforming phased array |
CN102594426B (zh) * | 2012-02-21 | 2014-09-10 | 中兴通讯股份有限公司 | 一种有源天线多收发通道同步校准的装置和方法 |
US9094254B2 (en) * | 2012-11-15 | 2015-07-28 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for antenna array calibration using traffic signals |
US9300408B2 (en) * | 2013-11-04 | 2016-03-29 | Alcatel-Lucent Shanghai Bell Co., Ltd | Methods and systems for calibrating LTE antenna systems |
US9866336B2 (en) * | 2015-06-17 | 2018-01-09 | Google Llc | Phased array antenna self-calibration |
US10103431B2 (en) * | 2016-04-21 | 2018-10-16 | Google Llc | Phased array antenna calibration |
US10128894B1 (en) * | 2017-05-09 | 2018-11-13 | Analog Devices Global | Active antenna calibration |
-
2016
- 2016-02-23 WO PCT/JP2016/055212 patent/WO2017145257A1/ja active Application Filing
-
2017
- 2017-02-21 US US16/076,787 patent/US10355740B2/en active Active
- 2017-02-21 CN CN201780011739.4A patent/CN108701899B/zh active Active
- 2017-02-21 JP JP2018501690A patent/JP6775571B2/ja active Active
- 2017-02-21 WO PCT/JP2017/006293 patent/WO2017146020A1/ja active Application Filing
- 2017-02-21 EP EP17756458.0A patent/EP3422478B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09148836A (ja) * | 1995-11-21 | 1997-06-06 | Mitsubishi Electric Corp | アンテナ装置 |
JP2010034937A (ja) * | 2008-07-30 | 2010-02-12 | Sony Corp | 無線通信装置及び無線通信方法、並びにコンピューター・プログラム |
JP2014505392A (ja) * | 2010-12-01 | 2014-02-27 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 少なくとも1つのキャリブレーションパラメータを取得するための方法、及び、アンテナアレイ |
Non-Patent Citations (1)
Title |
---|
See also references of EP3422478A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019161489A (ja) * | 2018-03-14 | 2019-09-19 | 日本電気株式会社 | 装置、装置による制御方法及びプログラム |
JP7124360B2 (ja) | 2018-03-14 | 2022-08-24 | 日本電気株式会社 | 装置、装置による制御方法及びプログラム |
WO2020021812A1 (ja) * | 2018-07-26 | 2020-01-30 | 日立オートモティブシステムズ株式会社 | レーダセンサ |
CN112219133A (zh) * | 2018-07-26 | 2021-01-12 | 日立汽车系统株式会社 | 雷达传感器 |
KR102060120B1 (ko) * | 2019-07-09 | 2019-12-27 | 국방과학연구소 | 능동 위상배열 안테나 장치 및 이의 송신채널 점검 방법 |
WO2021117131A1 (ja) * | 2019-12-10 | 2021-06-17 | 三菱電機株式会社 | アンテナ装置及び校正方法 |
JPWO2021117131A1 (ja) * | 2019-12-10 | 2021-06-17 | ||
JP7012918B2 (ja) | 2019-12-10 | 2022-02-14 | 三菱電機株式会社 | アンテナ装置及び校正方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2017145257A1 (ja) | 2017-08-31 |
EP3422478A1 (en) | 2019-01-02 |
CN108701899B (zh) | 2021-08-13 |
US10355740B2 (en) | 2019-07-16 |
CN108701899A (zh) | 2018-10-23 |
EP3422478B1 (en) | 2022-09-07 |
US20190044568A1 (en) | 2019-02-07 |
EP3422478A4 (en) | 2019-10-09 |
JP6775571B2 (ja) | 2020-10-28 |
JPWO2017146020A1 (ja) | 2018-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017146020A1 (ja) | アレーアンテナ装置およびその校正方法 | |
US11411311B2 (en) | System and method for measuring a plurality of RF signal paths | |
US11973473B2 (en) | Phased array amplifier linearization | |
KR101543242B1 (ko) | 통합 교정 회로망을 갖는 위상 배열 안테나 및 그의 교정 비율을 측정하는 방법 | |
CN106450796B (zh) | 一种阵列天线系统及天线的校准方法 | |
EP0981836B1 (en) | Method and device for antenna calibration | |
US8154452B2 (en) | Method and apparatus for phased array antenna field recalibration | |
Şeker | Calibration methods for phased array radars | |
KR102095391B1 (ko) | 보정기능을 갖는 크로스아이 재밍발생장치 및 제어방법 | |
US9360549B1 (en) | Methods and apparatus for a self-calibrated signal injection setup for in-field receive phased array calibration system | |
KR101544821B1 (ko) | 모노펄스 레이더 시스템 | |
KR101547986B1 (ko) | 자체 송신 신호를 이용한 모노펄스 추적 시스템의 자동 위상 정합 및 안테나 추적 각도 정합 장치와 그 방법 | |
JP2021158451A (ja) | アンテナ装置およびアンテナ校正方法 | |
US20030227408A1 (en) | Antenna apparatus | |
JP7012918B2 (ja) | アンテナ装置及び校正方法 | |
KR101389837B1 (ko) | 커플링 라인을 이용한 레이더 시스템의 배열 안테나 보정 장치 및 그 방법 | |
JP6234360B2 (ja) | アレイアンテナ装置及び校正方法 | |
JP3725851B2 (ja) | レーダ・ターゲット波模擬装置 | |
JP2778931B2 (ja) | レーダ・ターゲット波模擬装置 | |
KR20230102417A (ko) | 위상배열 송수신 시스템의 위상 보정 제어 방법 및 그를 위한 장치 | |
KR101378061B1 (ko) | 레이더 시스템의 배열 안테나 보정 장치 및 그 방법 | |
JPH11225014A (ja) | フェーズドアレイレーダ装置及びその位相校正方法 | |
JP2017005647A (ja) | 位相制御装置及びアレーアンテナシステム | |
JP4121082B2 (ja) | アンテナ診断装置 | |
JP2023142491A (ja) | 無線通信装置及びキャリブレーション方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018501690 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2017756458 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2017756458 Country of ref document: EP Effective date: 20180924 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17756458 Country of ref document: EP Kind code of ref document: A1 |