WO2022113178A1 - 送信装置、及び信号送信方法 - Google Patents
送信装置、及び信号送信方法 Download PDFInfo
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- WO2022113178A1 WO2022113178A1 PCT/JP2020/043702 JP2020043702W WO2022113178A1 WO 2022113178 A1 WO2022113178 A1 WO 2022113178A1 JP 2020043702 W JP2020043702 W JP 2020043702W WO 2022113178 A1 WO2022113178 A1 WO 2022113178A1
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- 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
- H01Q3/30—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 varying the relative phase between the radiating elements of an array
- H01Q3/34—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 varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/40—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 varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
Definitions
- the present invention relates to a technique for spatially multiplex transmission of a radio signal using the orbital angular momentum (OAM) of an electromagnetic wave.
- OFAM orbital angular momentum
- Non-Patent Document 1 In an electromagnetic wave having OAM, the equiphase planes are spirally distributed along the propagation direction around the propagation axis. Since electromagnetic waves having different OAM modes and propagating in the same direction have orthogonal spatial phase distributions in the rotation axis direction, the signals are multiplexed by separating the signals of each OAM mode modulated by different signal sequences at the receiving station. It is possible to transmit.
- a plurality of OAM modes are generated by using an evenly spaced circular array antenna (hereinafter referred to as UCA (Uniform Circular Array)) in which a plurality of antenna elements are arranged in a circle at equal intervals.
- UCA Uniform Circular Array
- a butler circuit butler matrix circuit
- a butler circuit is used to generate signals in a plurality of OAM modes.
- a transmitter using a UCA and a butler circuit enables large-capacity communication, but in the future, it is desired to support mobile communication.
- OAM multiplex transmission technique it is necessary to have multi-directional support and mobile followability that can transmit signals in multiple directions.
- the present invention has been made in view of the above points, and an object of the present invention is to provide a technique capable of multi-directional correspondence and movement tracking in a transmission device using a UCA and a butler circuit.
- a multiple circular array antenna including a plurality of circular array antennas in which a plurality of antenna elements are arranged in a circle, and A plurality of butler circuits connected to the multiple circular array antenna,
- a transmitter comprising one or more butler circuits connected to one or more linear array antennas composed of some antenna elements among a plurality of antenna elements in the multiple circular array antenna.
- a technique that enables multi-directional correspondence and movement tracking in a transmission device using a UCA and a butler circuit is provided.
- FIG. 1 shows an example of UCA phase setting for generating an OAM mode signal.
- the UCA shown in FIG. 1 is a UCA composed of eight antenna elements.
- the signals of OAM mode 0, 1, 2, 3, ... On the transmitting side are generated by the phase difference of the signals supplied to each antenna element (indicated by ⁇ ) of UCA. That is, the signal in the OAM mode n is generated by setting the phase of the signal supplied to each antenna element so that the phase becomes n rotations (n ⁇ 360 degrees).
- the signal in which the rotation direction of the phase is reversed with respect to the signal in the OAM mode n is referred to as the OAM mode-n.
- the rotation direction of the phase of the signal in the positive OAM mode is counterclockwise
- the rotation direction of the phase of the signal in the negative OAM mode is clockwise.
- wireless communication by spatial multiplexing can be performed.
- the phase of each antenna element of the UCA on the receiving side may be set so as to be in the opposite direction to the phase of the antenna element on the transmitting side.
- FIG. 2 shows an example of the phase distribution and signal intensity distribution of the OAM multiplex signal.
- the phase distributions of the signals of OAM mode 1 and OAM mode 2 as seen from the end face (propagation orthogonal plane) orthogonal to the propagation direction from the transmission side are represented by arrows.
- the beginning of the arrow is 0 degrees, the phase changes linearly and the end of the arrow is 360 degrees. That is, the signal in the OAM mode n propagates while the phase rotates n times (n ⁇ 360 degrees) in the propagation orthogonal plane.
- the arrows in the phase distribution of the signals in OAM modes -1 and -2 are in the opposite direction.
- the signal of each OAM mode has a different signal strength distribution and the position where the signal strength is maximized for each OAM mode.
- the intensity distributions of the same OAM modes with different signs are the same.
- the higher the OAM mode the farther the position where the signal strength is maximized from the propagation axis (Non-Patent Document 2).
- the one with a larger value in the OAM mode is referred to as a higher-order mode.
- the signal in OAM mode 3 is a higher-order mode than the signals in OAM mode 0, OAM mode 1, and OAM mode 2.
- FIG. 2 (3) shows the position where the signal strength becomes maximum in each OAM mode by an annulus, but the position where the signal strength becomes maximum becomes farther from the central axis and the propagation distance becomes higher as the OAM mode becomes higher. Accordingly, the beam diameter of the OAM mode multiplex signal is widened, and the annulus indicating the position where the signal strength is maximized becomes large in each OAM mode.
- FIG. 3 is an example of a multiple UCA in which four UCAs having different diameters are arranged concentrically.
- a transmission device using a UCA and a butler circuit enables large-capacity communication, but the conventional wireless transmission technology using the UCA and the butler circuit does not support multi-directional communication. , Movement followability is also low.
- the transmission device is configured by combining UCA and ULA (Uniform Linear Array).
- UCA Uniform Linear Array
- the multiplex UCA is used, and the ULA is composed of some antenna elements constituting the multiplex UCA.
- ULA is an antenna in which a plurality of antenna elements are linearly arranged, and by supplying signals to each antenna element by changing the phase, in various directions tilted from the direction perpendicular to the antenna train. It is possible to dynamically generate a beam. This makes it possible to realize multi-directional support and movement followability.
- FIG. 5 is a diagram showing an outline configuration of a transmission device according to the present embodiment. As shown in FIG. 5, in the transmitting device of the present embodiment, among the antenna elements of the multiple UCA having concentric different diameters, some of the antenna elements arranged in series are used as ULA. Each antenna element constituting the multiplex UCA in the present embodiment is a wide band antenna element or an antenna element corresponding to a plurality of bands.
- a butler circuit that generates a signal with a phase difference is connected to each UCA constituting the multiple UCA. Further, a butler circuit that generates a signal having a phase difference is connected to each ULA.
- a multiple UCA is composed of four UCAs having different diameters and four ULAs are configured in the multiple UCA, eight butler circuits are provided.
- the corresponding frequency bands are different between the UCA and the ULA.
- the frequency bands corresponding to the Butler circuit connected to the UCA and the Butler circuit connected to the ULA are different.
- the corresponding frequency bands may be the same or different between UCAs in a plurality of UCAs. Further, the corresponding frequency bands may be the same or different among the ULAs in a plurality of ULAs.
- transmission by multiplex UCA, transmission by single UCA, transmission by single ULA, transmission by multiple ULA, transmission by multiplex UCA and single ULA Transmission, transmission by multiple UCA, transmission by multiple ULA, etc. can be arbitrarily selected.
- UCA and ULA can be used asynchronously, or UCA and ULA can be used synchronously and simultaneously.
- FIG. 6 is a configuration diagram of the transmission device 100 in this embodiment.
- the transmission device 100 of this embodiment includes a multiplex UCA 10, an OAM mode generation unit 40, a selection unit 30, an analog signal processing unit 50, a digital signal processing unit 60, and a control unit 110.
- the OAM mode generation unit 40 has a butler circuit having a total number of a plurality of UCAs constituting the multiplex UCA10 and a total number of one or more ULAs using the antenna element constituting the multiplex UCA10.
- the multiplex UCA10 is an antenna composed of four UCAs (UCA_1, UCA_2, UCA_3, UCA_4) having different diameters, and four ULAs (ULA_1, ULA_2, ULA_3, ULA_4) are formed by a plurality of antenna elements constituting the multiplex UCA10.
- the OAM mode generation unit 40 includes eight butler circuits 40-1 to 40-8 corresponding to each UCA and each ULA.
- the butler circuits 40-1 to 40-4 are connected to UCA_1, UCA_2, UCA_3, UCA_4, and the butler circuits 40-5 to 40-8 are connected to ULA_1, ULA_2, ULA_3, ULA_1.
- the butler circuit 40-1 corresponds to the frequency band 1 of the connected UCA_1
- the butler circuit 40-2 corresponds to the frequency band 2 of the connected UCA_1
- the butler circuit 40- Reference numeral 3 corresponds to the frequency band 3 of the connected UCA_3
- the butler circuit 40-4 corresponds to the frequency band 4 of the connected UCA_4.
- the butler circuit 40-5 corresponds to the frequency band 5 of the connected ULA_1
- the butler circuit 40-6 corresponds to the frequency band 6 of the connected ULA_1
- the butler circuit 40-7 is connected.
- the Butler circuit 40-8 corresponds to the frequency band 8 of the connected ULA_4.
- frequency bands 1 to 8 may be different frequency bands, or some of the plurality of frequency bands may be the same.
- the multiplex UCA10 is an antenna composed of four UCAs (UCA_1, UCA_2, UCA_3, UCA_4) having different diameters, and four ULAs (ULA_1, ULA_2, ULA_3, ULA_4) are configured by the plurality of antenna elements constituting the multiplex UCA10.
- FIG. 8 shows an example of a connection configuration between the butler circuit 40-1 and UCA_1 and an example of a connection configuration between the butler circuit 40-5 and ULA_1.
- FIG. 8 shows the connection configuration for UCA_1 and ULA_1 as an example, but the same applies to other UCAs constituting the multiple UCA10 and other ULAs configured in the multiplex UCA10.
- the antenna element train on the line connecting the antenna elements # 3 and # 7 of UCA_1 constitutes ULA_2
- the antenna element train on the line connecting the antenna elements # 4 and # 8 of UCA_1 constitutes ULA_3.
- the antenna element train on the line connecting the antenna elements # 5 and # 1 of UCA_1 constitutes ULA_1.
- UCA_1 is an antenna in which eight antenna elements # 1 to # 8 are arranged in a circular shape. Further, in the example shown in FIG. 8, as the ULA (ULA_1) receiving the signal supplied from the butler circuit 41-5, the horizontal antenna train on FIG. 8 (on the straight line connecting the antenna elements # 2 and # 6 of the UCA_1). (A row of antenna elements) is used.
- ULA_1 shown in FIG. 8 is an antenna in which eight antenna elements # 1 to # 8 are linearly arranged.
- the antenna elements # 1 and # 8 are a part of UCA_1
- the antenna elements # 2 and # 7 are a part of UCA_2.
- Antenna elements # 3 and # 6 are part of UCA_3
- antenna elements # 4 and # 5 are part of UCA_4.
- FIG. 8 shows that each Butler circuit has N input ports. Basically, the number of output ports is the maximum number of N, and when there are eight output ports as in the example of FIG. 8, the maximum number of N is eight.
- the "port" may be referred to as a "terminal”.
- a signal having a phase difference corresponding to OAM mode 1 and a signal having a phase difference corresponding to OAM mode-1 are combined (multiplexed) and output. An example of the case is shown.
- the multiple UCA 10 is composed of four UCAs, four ULAs are configured, the number of antenna elements of each of UCA and ULA is eight, and the signal of OAM mode 1 is obtained.
- Multiplexing the signals of and OAM mode-1 is an example.
- the multiplex UCA 10 may be composed of more than four UCAs or may be composed of less than four UCAs.
- the number of ULAs may be more than 4 or less.
- the number of antenna elements for each of UCA and ULA may be more than eight or less than eight. Further, the number of OAM modes transmitted by each UCA may be more than or less than two.
- the butler circuit 40-1 shown in FIG. 8 has input ports A and B and output ports C to J.
- the signal to be transmitted in OAM mode 1 is input to the input port A
- the signal to be transmitted in OAM mode-1 is input to the input port B.
- a signal with a phase difference of 45 ° (360 ° / 8) counterclockwise is output from each output port for input from input port A, and each output is output for input from input port B.
- a signal with a phase difference of -45 ° counterclockwise is output from the port. That is, when both the input port A and the input port B have inputs, a signal obtained by combining (multiplexing) two signals having different phases is output from each output port.
- each antenna element of UCA_1 outputs a signal obtained by combining two signals having the following phases. To.
- the butler circuit 40-5 connected to the ULA_1 has the same configuration as the butler circuit 40-1 described above, and the plurality of antenna elements # 1 to # 8 constituting the ULA_1 have the same phase difference as described above. Supply a signal.
- the input signal to the butler circuit 40-5 connected to the ULA_1 is a signal of the OAM mode 1 and a signal of the OAM mode-1 for convenience.
- the mode 1 signal is a signal transmitted by a beam generated by the phase difference corresponding to OAM mode 1
- the input OAM mode-1 signal is generated by the phase difference corresponding to OAM mode-1. It is a signal transmitted by a beam.
- the output port J of the butler circuit 40-1 is connected to the antenna element # 1 of the UCA_1, the output port I is connected to the antenna element # 2 of the UCA_1, and the output port H is the antenna of the UCA_1.
- output port G is connected to antenna element # 4 of UCA_1, output port F is connected to antenna element # 5 of UCA_1, and output port E is connected to antenna element # 6 of UCA_1.
- the output port D is connected to the antenna element # 7 of the UCA_1, and the output port C is connected to the antenna element # 8 of the UCA_1.
- the output port J of the butler circuit 40-5 is connected to the antenna element # 1 of ULA_1, the output port I is connected to the antenna element # 2 of ULA_1, and the output port H is connected to the antenna element # 3 of ULA_1.
- the output port G is connected to the antenna element # 4 of ULA_1
- the output port F is connected to the antenna element # 5 of ULA_1
- the output port E is connected to the antenna element # 6 of ULA_1
- D is connected to the antenna element # 7 of the ULA_1 and the output port C is connected to the antenna element # 8 of the ULA_1.
- FIG. 8 shows the connection of only some output ports.
- the signal output from each output port is supplied to the antenna element connected to the output port, and is output as a radio wave from the antenna element.
- data is input to the digital signal processing unit 60.
- the digital signal processing unit 60 generates a digital signal to be transmitted on a carrier from the input data, and outputs the generated digital signal to the analog signal processing unit 50.
- the analog signal processing unit 50 converts a digital signal into an analog signal (digital-analog conversion), and converts the frequency of the output signal into a carrier frequency band (eg, 28 GHz band).
- the analog signal processing unit 50 inputs the generated analog signal to the selection unit 30.
- the analog signal processing unit 50 corresponds to each of the UCA and ULA (which may be UCA only or ULA only) selected by the selection unit 30 (that is, connected to the UCA / ULA).
- a frequency band signal (corresponding to each of the butler circuits) is generated and input to the selection unit 30.
- Such control is executed, for example, by an instruction from the control unit 110.
- the selection unit 30 selects a butler circuit connected to the UCA and ULA to transmit the signal based on the instruction from the control unit 110, and selects the signal received from the analog signal processing unit 50. Output to. At this time, the selection unit 30 selects the input port of the butler circuit according to the OAM mode of the signal to be transmitted instructed by the control unit 110 and the setting of the corresponding phase difference. In S105, the signal output from the selected butler circuit is supplied to each antenna element connected to the butler circuit, and the signal is transmitted from each antenna element.
- the control unit 110 decides to transmit a signal from the UCA_1 and the ULA_1, the control unit 110 causes the analog signal processing unit 50 to transmit a signal in the frequency band corresponding to the UCA_1 (transmission in OAM mode 1). (Signal to be transmitted and signal transmitted in OAM mode-1) and signal in the frequency band corresponding to ULA_1 (signal transmitted with phase difference of OAM mode 1 and signal transmitted with phase difference of OAM mode-1). Instructs the generation of.
- control unit 110 outputs the signal of the frequency band corresponding to UCA_1 to the butler circuit 40-1 and outputs the signal of the frequency band corresponding to ULA_1 to the butler circuit 40-5 to the selection unit 30. Instruct. At that time, each OAM mode and the corresponding phase difference signal are output to the corresponding input port of each Butler circuit.
- the analog signal processing unit 50 and the selection unit 30 operate according to the above instructions. As a result, a signal in which OAM mode 1 and OAM mode-1 are multiplexed is transmitted from UCA_1, and a beam corresponding to the phase difference of OAM mode 1 and a beam corresponding to the phase difference of OAM mode-1 are transmitted from ULA_1. The signal is transmitted.
- the analog signal processing unit 50 generates a signal in the frequency band corresponding to UCA / ULA, but instead of this, the selection unit 30 performs frequency conversion to perform an analog signal.
- the frequency of the signal received from the processing unit 50 may be converted into the frequency of each selected UCA / ULA frequency band and output.
- control unit 110 knows the position of each receiving device (the direction in which the receiving device exists with respect to the transmitting device 100). Any method may be used as a method for the control unit 110 to grasp the state of the receiving side (position of the receiving device, etc.). For example, the control unit 110 may grasp the position of the receiving device by receiving the reference signal transmitted from the receiving device, or may obtain the position of the receiving device by receiving the position information transmitted from the receiving device. You may grasp it. Further, the position of the receiving device (fixed position, scheduled movement position for each time, etc.) may be set in advance in the control unit 110.
- control unit 110 uses the multiplex UCA in addition to having the receiving device at a position (a position facing the transmitting device 100) capable of performing communication using the multiplex UCA 10 (may be a single UCA).
- the control unit 110 sets each UCA of the multiplex UCA 10 and ULA (ULA_x) to the analog signal processing unit 50 and the selection unit 30. ) To send a signal.
- ULA_x can transmit signals having beams directed in a plurality of directions.
- ULA_x may be one or a plurality.
- the control unit 110 can select one or a plurality of ULA_x according to the existence position of the receiving device.
- the circular surface of the multiple UCA 10 is perpendicular to the ground (horizontal plane of XY), and the ULA parallel to the ground when the multiple UCA 10 is viewed from above is shown in FIG. It is assumed that it is ULA_x.
- the ULA_x is capable of transmitting signals in beam 1 and beam 2, for example, if the control unit 110 knows that a receiver is present in the direction of these beams, it selects the ULA_x as the ULA. Select the input port of the Butler circuit according to the sending direction. For example, in FIG. 8, when ULA_1 is selected and it is desired to be transmitted in the direction of the beam 1, the control unit 110 instructs the selection unit 30 to select the input port A of the butler circuit 40-5 and input the corresponding signal. do.
- ULA_y is a ULA in a vertically standing position in the multiplex UCA10, and as shown in the figure, it is assumed that a beam can be formed in the vertical direction.
- the control unit 110 can select the ULA_y as the ULA, for example, when it grasps that the receiving device exists in the direction of the beam 3. Further, the control unit 110 can also select both ULA_x and ULA_y depending on the position of the receiving device.
- ULA_x shown in FIG.
- the control unit 110 grasps that the receiving device is at the position A, the control unit 110 causes the selection unit 30 to input only the signal transmitted in the direction A to the input port A of the corresponding butler circuit. ..
- a signal is transmitted from ULA_x by the beam 1 of FIG. 10, and the receiving device can receive the signal of good quality.
- control unit 110 grasps that the receiving device has moved to the position B, the control unit 110 switches the selection unit 30 to input the signal to be transmitted in the direction A to the input port B. Then, a signal is transmitted from ULA_x by the beam 2 of FIG. 10, and the receiving device can receive the signal of good quality.
- the control unit 110 switches the output of the signal transmitted in the OAM mode 1 to the selection unit 30 to the input port n corresponding to that direction. Since a signal having a phase difference different from the phase difference corresponding to OAM mode 1 can be supplied to ULA_x, the direction of the beam can be changed. In this way, by using ULA_x, it is possible to direct the beam following the movement of the receiving device.
- the control unit 110 grasps that the receiving devices R1 and R2 are at different positions A and B, the control unit 110 sends a signal to be transmitted to the receiving device R1 to the input port A to the selection unit 30.
- the signal is transmitted from ULA_x using the beams 1 and 2 of FIG. 10, and the receiving devices R1 and R2 are of different quality, respectively. You can receive a good signal.
- the input timings of these signals to the input ports A and B may be simultaneous or different. Further, signals can be transmitted simultaneously or individually in a plurality of directions according to the degree of freedom (number of directions) of beam generation of ULA_x and the number of input ports of the butler circuit.
- the beam direction can be changed with respect to a certain moving direction by selecting the input port of the Butler circuit corresponding to the ULA to be used. Then, by selecting ULA, it is possible to realize control of the beam direction that can be followed three-dimensionally.
- the beam can be three-dimensionally directed in multiple directions depending on the direction of the multiple UCA 10 itself and one or more ULAs selected. Further, by dynamically selecting UCA / ULA (corresponding Butler circuit and its input port), movement tracking can be performed.
- This specification describes at least the transmission device and the signal transmission method described in the following items.
- (Section 1) A multi-circular array antenna having a plurality of circular array antennas in which a plurality of antenna elements are arranged in a circle, A plurality of butler circuits connected to the multiple circular array antenna, A transmitter including one or more butler circuits connected to one or more linear array antennas composed of some antenna elements among a plurality of antenna elements in the multiple circular array antenna.
- (Section 2) The transmitter according to item 1, wherein the frequency band corresponding to the circular array antenna constituting the multiple circular array antenna and the frequency band corresponding to the linear array antenna are different.
- the transmitter according to item (1) or (2) comprising a selection unit for selecting a butler circuit connected to a linear array antenna for transmitting a signal or a circular array antenna for transmitting a signal.
- a selection unit for selecting a butler circuit connected to a linear array antenna for transmitting a signal or a circular array antenna for transmitting a signal comprising a selection unit for selecting a butler circuit connected to a linear array antenna for transmitting a signal or a circular array antenna for transmitting a signal.
- a selection unit for selecting a butler circuit connected to a linear array antenna for transmitting a signal or a circular array antenna for transmitting a signal.
- (Section 5) The signal transmission method according to paragraph 4, wherein one or more butler circuits connected to one or more specific linear array antennas are selected, and the specific one or more linear array antennas transmit signals with beams in a plurality of directions. ..
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Abstract
Description
前記多重円形アレーアンテナに接続される複数のバトラー回路と、
前記多重円形アレーアンテナにおける複数のアンテナ素子のうちの一部のアンテナ素子により構成される1以上のリニアアレーアンテナに接続される1以上のバトラー回路と
を備える送信装置が提供される。
まず、本実施の形態における送信装置において使用するUCAに係る基本的な設定・動作例について説明する。
前述したように、UCAとバトラー回路を用いた送信装置により、大容量の通信が可能になるが、UCA及びバトラー回路を用いた従来の無線伝送技術では、多方向への通信が非対応であり、移動追従性も低い。
<装置構成例>
図6は、本実施例における送信装置100の構成図である。図6に示すように、本実施例の送信装置100は、多重UCA10、OAMモード生成部40、選択部30、アナログ信号処理部50、デジタル信号処理部60、制御部110を有する。
本実施例における図6に示す送信装置100の動作例を図9のフローチャートを参照して説明する。
送信装置100における制御部110がどのようにして信号を送信させるUCA/ULAを選択するかに関しての例を次に説明する。
以上説明した本実施の形態に係る技術により、UCAとバトラー回路を用いた送信装置において、多方向対応と移動追従が可能となる。
本明細書には、少なくとも下記の各項に記載した送信装置、及び信号送信方法が記載されている。
(第1項)
複数のアンテナ素子が円形に配置された円形アレーアンテナを複数備える多重円形アレーアンテナと、
前記多重円形アレーアンテナに接続される複数のバトラー回路と、
前記多重円形アレーアンテナにおける複数のアンテナ素子のうちの一部のアンテナ素子により構成される1以上のリニアアレーアンテナに接続される1以上のバトラー回路と
を備える送信装置。
(第2項)
前記多重円形アレーアンテナを構成する前記円形アレーアンテナに対応する周波数帯と、前記リニアアレーアンテナに対応する周波数帯とが異なる
第1項に記載の送信装置。
(第3項)
信号を送信させるリニアアレーアンテナ又は信号を送信させる円形アレーアンテナに接続されるバトラー回路を選択する選択部
を備える第1項又は第2項に記載の送信装置。
(第4項)
複数のアンテナ素子が円形に配置された円形アレーアンテナを複数備える多重円形アレーアンテナと、前記多重円形アレーアンテナに接続される複数のバトラー回路と、前記多重円形アレーアンテナにおける複数のアンテナ素子のうちの一部のアンテナ素子により構成される1以上のリニアアレーアンテナに接続される1以上のバトラー回路とを備える送信装置における信号送信方法であって、
前記複数のバトラー回路から1以上のバトラー回路を選択し、選択したバトラー回路に接続されるアレーアンテナに対応する周波数帯の信号を、当該選択したバトラー回路に入力する
信号送信方法。
(第5項)
特定の1以上のリニアアレーアンテナに接続される1以上のバトラー回路を選択し、前記特定の1以上のリニアアレーアンテナに、複数方向のビームで信号を送信させる
第4項に記載の信号送信方法。
30 選択部
40 OAMモード生成部
50 アナログ信号処理部
60 デジタル信号処理部
100 送信装置
110 制御部
Claims (5)
- 複数のアンテナ素子が円形に配置された円形アレーアンテナを複数備える多重円形アレーアンテナと、
前記多重円形アレーアンテナに接続される複数のバトラー回路と、
前記多重円形アレーアンテナにおける複数のアンテナ素子のうちの一部のアンテナ素子により構成される1以上のリニアアレーアンテナに接続される1以上のバトラー回路と
を備える送信装置。 - 前記多重円形アレーアンテナを構成する前記円形アレーアンテナに対応する周波数帯と、前記リニアアレーアンテナに対応する周波数帯とが異なる
請求項1に記載の送信装置。 - 信号を送信させるリニアアレーアンテナ又は信号を送信させる円形アレーアンテナに接続されるバトラー回路を選択する選択部
を備える請求項1又は2に記載の送信装置。 - 複数のアンテナ素子が円形に配置された円形アレーアンテナを複数備える多重円形アレーアンテナと、前記多重円形アレーアンテナに接続される複数のバトラー回路と、前記多重円形アレーアンテナにおける複数のアンテナ素子のうちの一部のアンテナ素子により構成される1以上のリニアアレーアンテナに接続される1以上のバトラー回路とを備える送信装置における信号送信方法であって、
前記複数のバトラー回路から1以上のバトラー回路を選択し、選択したバトラー回路に接続されるアレーアンテナに対応する周波数帯の信号を、当該選択したバトラー回路に入力する
信号送信方法。 - 特定の1以上のリニアアレーアンテナに接続される1以上のバトラー回路を選択し、前記特定の1以上のリニアアレーアンテナに、複数方向のビームで信号を送信させる
請求項4に記載の信号送信方法。
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Citations (2)
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---|---|---|---|---|
JPS5951372A (ja) * | 1982-09-17 | 1984-03-24 | Mitsubishi Electric Corp | アンテナ装置 |
WO2017125969A1 (ja) * | 2016-01-20 | 2017-07-27 | パナソニックIpマネジメント株式会社 | 送信装置、受信装置、送信方法、および受信方法 |
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JP5951372B2 (ja) | 2012-07-05 | 2016-07-13 | 株式会社カネカ | タッチパネルおよびその製造方法 |
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JPS5951372A (ja) * | 1982-09-17 | 1984-03-24 | Mitsubishi Electric Corp | アンテナ装置 |
WO2017125969A1 (ja) * | 2016-01-20 | 2017-07-27 | パナソニックIpマネジメント株式会社 | 送信装置、受信装置、送信方法、および受信方法 |
Non-Patent Citations (1)
Title |
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SASAKI, HIROFUMI: "Experimental Investigation of OAM-MIMO multiplexing technique for ultra high capacity wireless transmission", IEICE TECHNICAL REPORT, vol. 118, no. 475 (SR2018-140), 27 February 2019 (2019-02-27), JP , pages 111 - 116, XP009537450, ISSN: 2432-6380 * |
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