WO2017026107A1 - 分合波器、アンテナ装置およびフェージング消去方法 - Google Patents
分合波器、アンテナ装置およびフェージング消去方法 Download PDFInfo
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- WO2017026107A1 WO2017026107A1 PCT/JP2016/003544 JP2016003544W WO2017026107A1 WO 2017026107 A1 WO2017026107 A1 WO 2017026107A1 JP 2016003544 W JP2016003544 W JP 2016003544W WO 2017026107 A1 WO2017026107 A1 WO 2017026107A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/22—Hybrid ring junctions
- H01P5/222—180° rat race hybrid rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/22—Hybrid ring junctions
- H01P5/227—90° branch line couplers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
- H01Q11/083—Tapered helical aerials, e.g. conical spiral aerials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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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
- H01Q3/36—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 variable phase-shifters
- H01Q3/38—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 variable phase-shifters the phase-shifters being digital
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/22—Hybrid ring junctions
Definitions
- the present invention relates to a multiplexer / demultiplexer, an antenna device, and a fading elimination method using a 4-wire helical antenna as an input / output antenna.
- the 4-wire helical antenna is sometimes called a 4-phase helical antenna or a 4-wire helical antenna.
- the 4-wire helical antenna is described in Patent Documents 1 and 2, for example.
- Patent Document 1 discloses a 4-wire helical antenna device.
- the four-wire helical antenna device of Patent Document 1 has a structure in which non-contact power is supplied to each helical antenna element.
- Patent Document 1 describes a 90 ° hybrid and a 180 ° hybrid.
- the hybrid is sometimes called a phase shifter, a mixer, a combiner, or a combiner, or a hybrid phase shifter, a hybrid mixer, a hybrid combiner, or the like.
- Patent Document 2 also discloses a 4-wire helical antenna device.
- the 4-wire helical antenna device of Patent Document 2 has a structure in which a first mode that is a circularly polarized wave compatible mode and a second mode that is a direct polarized wave compatible mode are switched by switches of each system. Yes.
- the mode is changed by connecting a delay line to each helical antenna element by switching from the first mode to the second mode with a switch of each system.
- Patent Document 3 discloses a fading elimination method for a single antenna with respect to multipath by the sea surface. This Patent Document 3 discloses a multiplexer / demultiplexer based on the characteristics of multipath generated at the sea surface. Patent Document 3 describes a phase shifter (variable phase shifter) capable of adjusting the amount of phase shift and an attenuator (variable attenuator) capable of adjusting the degree of attenuation. Patent Document 3 describes a combination circuit (equivalent to a 180 ° combiner) of a phase shifter and a combiner (mixer) that are combined after performing 180 ° phase shift.
- a signal wave in which an antenna wave is a circularly polarized forward direct wave (1) and a circularly polarized forward reflected wave (2) and a circularly polarized reversely reflected wave are combined with a hybrid coupler. Separated into (3).
- the circularly polarized reverse-rotation reflected wave (3) is adjusted to the opposite phase and the same amplitude of the circularly polarized forward-rotated reflected wave (2) by the attenuator and the phase shifter.
- the combiner adjusts the signal wave, which is composed of the circularly polarized forward direct wave (1) and the circularly polarized forward reflected wave (2), and the reverse polarized reflected wave (3). The signal wave is combined.
- this system is not a fading countermeasure for the 4-wire helical antenna device. It is not a countermeasure against fading that occurs on the ground surface.
- Patent Document 4 also discloses a multiplexer / demultiplexer.
- the multiplexer / demultiplexer includes one phase shifter (variable phase shifter), a 4-beam changeover switch, and one synthesis distributor.
- the output signal of the 4-wire helical antenna device is affected by reflected waves (multipath) from the ground surface and the like. For this reason, with the existing 4-wire helical antenna device, it is difficult to make adjustments for easily realizing a stable reception state in an actual environment. For example, a signal transmitted from a satellite is a weak radio wave on the ground, and it is not clear what and how to adjust with a 4-wire helical antenna device as a countermeasure against fading of the ground surface reflected wave.
- Patent Documents 1, 2, and 4 do not disclose a multipath fading countermeasure. Further, Patent Document 3 does not disclose a fading countermeasure for the 4-wire helical antenna device. Moreover, it does not disclose a fading countermeasure that occurs outside the sea surface.
- Patent Documents 1 to 4 do not provide any fading countermeasures for the 4-wire helical antenna device.
- the main signal level may be significantly weakened in the 4-wire helical antenna device.
- the inventor examined a multiplexer / demultiplexer useful for reducing signal degradation due to multipath in an antenna device portion using a 4-wire helical antenna.
- the present invention is made based on the above background, and provides a multiplexer / demultiplexer connected to a 4-wire helical antenna that reduces the influence of multipath, and an antenna device of a 4-wire helical antenna.
- the present invention also provides a fading elimination method for a 4-wire helical antenna.
- the multiplexer / demultiplexer is connected to each phase of a 4-wire helical antenna having 1 to 4 phases (1 phase, 2 phase, 3 phase, and 4 phase), and 1 An input terminal that receives a four-phase input signal from each phase, and the one-phase input signal and the two-phase input signal received from the input terminal, and the one-phase input signal and the two-phase input signal; Phase-separation that outputs the first left-handed circularly polarized wave and the first right-handed circularly-polarized wave after being phase-shifted by 90 degrees or -90 degrees in a combination of alternating in-phase A combination of a mixer and the three-phase input signal and the four-phase input signal received from the input terminal, and the three-phase input signal and the four-phase input signal are alternately in phase with each other.
- 3rd left-handed circularly polarized wave and fourth right-handed circularly polarized wave Receiving the first left-handed circularly polarized wave and the second left-handed circularly polarized wave, and receiving the first left-handed circularly polarized wave or the second left-handed circularly polarized wave.
- a first phase-shifting mixer that outputs a combined left-handed circularly polarized wave after being phase-shifted at 180 ° or ⁇ 180 ° in a combination of one phase and the other in the opposite phase; 180 degrees or -180 degrees by receiving a wave and the second right-handed circularly polarized wave, and combining one of the first right-handed circularly polarized wave or the second right-handed circularly polarized wave with the other phase.
- a second phase-shifting mixer that outputs a combined right-handed circularly polarized wave, and receives one of the left-handed circularly polarized wave and the combined right-handed circularly polarized wave
- a variable phase shifter that outputs the adjusted circularly polarized wave, the adjusted circularly polarized wave, and the synthetic left-handed circularly polarized wave. And characterized in that it has an output terminal for outputting the other of the composite right-handed circularly polarized wave.
- An antenna device includes the multiplexer / demultiplexer and a 4-wire helical antenna connected to an input terminal of the multiplexer / demultiplexer.
- a fading elimination method using a multiplexer / demultiplexer is connected to each phase of a four-wire helical antenna having one to four phases (one phase, two phases, three phases, and four phases).
- 1-phase to 4-phase input signals are received from the input terminals, the 1-phase input signals and the 2-phase input signals are received from the input terminals, and the 1-phase input signals and the 2-phase inputs are received.
- the signals are combined in phase with each other in the same phase at 90 degrees or -90 degrees and synthesized to output a first left-handed circularly polarized wave and a first right-handed circularly polarized wave, and the input terminal
- the three-phase input signal and the four-phase input signal are shifted by 90 ° or ⁇ 90 ° in a combination of alternately in-phase.
- the first left-handed circularly polarized wave and the second left-handed circularly polarized wave are received, and one of the first left-handed circularly polarized wave and the second left-handed circularly polarized wave is reversed in phase with the other. And after the phase is shifted by 180 degrees or -180 degrees, the combined left-handed circularly polarized wave is output, and the first right-handed circularly polarized wave and the second right-handed circularly polarized wave are received, 1 right-handed circularly polarized wave or the second right-handed circularly polarized wave is combined in the same phase with the other and phase-shifted by 180 degrees or -180 degrees and then synthesized to output a synthesized right-handed circularly polarized wave Then, one of the synthetic left-handed circularly polarized wave and the synthetic right-handed circularly polarized wave is received, adjusted in advance by the amount of phase shift received from the control terminal, and the adjusted circularly polarized wave is output, and the adjusted circularly polarized wave is output.
- a multiplexer / demultiplexer connected to a 4-wire helical antenna that reduces the influence of multipath, and an antenna device of a 4-wire helical antenna.
- this embodiment assumes that a satellite signal is received by a 4-wire helical antenna device installed on the ground.
- phase shift of the main circular polarization component is displaced, and a reverse circular polarization component may be generated with respect to the direct wave (main circular polarization).
- FIG. 1 is a functional block diagram showing a multiplexer / demultiplexer 1 according to the first embodiment.
- FIG. 2 is a schematic diagram illustrating an example of a 4-wire helical antenna device 3 including the multiplexer / demultiplexer 1. As shown in the figure, the multiplexer / demultiplexer 1 and the 4-wire helical antenna 2 form a 4-wire helical antenna device 3.
- the shape of the 4-wire helical antenna 2 is an example, and a 4-wire helical antenna other than the shape in which four antenna elements are wound around the illustrated rod shape may be used.
- RHCP indicates an RHCP (Right Hand Circular Polarization) signal
- LHCP indicates an LHCP (Left Hand Circular Polarization) signal.
- the multiplexer / demultiplexer 1 includes an input terminal 10, a first phase shift separation mixer 20, a second phase shift separation mixer 30, a first phase shift mixer 40, and a second phase shift mixing. 50, variable phase shifter 60, and output end 70.
- the 4-wire helical antenna 2 has a 1-phase to 4-phase system with a phase difference of 90 °, and each system is isolated. Antenna signal waves of each system (reception waves of 1 to 4 phases) are connected to the input terminal 10 of the multiplexer / demultiplexer 1, respectively.
- the 4-wire helical antenna device 3 is a combination of the multiplexer / demultiplexer 1 and the 4-wire helical antenna 2.
- the input terminal 10 is connected to an element of each system, and receives an input signal (each received wave) of 1 to 4 phases.
- the signal wave flowing into the input terminal 10 includes a main circularly polarized wave component and a reverse circularly polarized wave component.
- the main circularly polarized wave is a right-handed wave
- the left-handed wave that is a reverse circularly polarized wave component is actually mixed in the signal wave flowing into the input end.
- a configuration in which the main circular polarization is right-hand circular polarization will be described.
- the main circular polarization is a left circular polarization
- the right and left may be switched as appropriate.
- the first phase-shifting / separating mixer 20 of the present embodiment is composed of a 90 ° hybrid (HYB in the figure).
- the first phase-shifting / separating mixer 20 receives one-phase and two-phase input signals from the input terminal 10, and right-handed circularly polarized wave (main-circularly polarized wave) and left-handed circularly polarized wave ( Are combined in the same phase alternately at 90 °.
- the first phase shift separation mixer 20 outputs the combined signal wave as a first right-handed circularly polarized wave.
- the phase amount to be phase-shifted may be changed to 90 ° and synthesized after phase-shifting at ⁇ 90 °.
- the second phase-shifting / separating mixer 30 of the present embodiment is configured by a 90 ° hybrid (HYB in the figure).
- the second phase-shifting / separating mixer 30 receives three-phase and four-phase input signals from the input terminal 10, and the right-handed circularly polarized wave (mainly circularly polarized wave) and the left-handed circularly polarized wave ( Are combined in the same phase alternately at 90 °.
- the second phase shift separation mixer 30 outputs the combined signal wave as a second right-handed circularly polarized wave.
- the phase amount to be phase-shifted may be changed to 90 ° and synthesized after phase-shifting at ⁇ 90 °.
- the first phase shift mixer 40 of the present embodiment is composed of a 180 ° combiner (COMB in the figure).
- the first phase shift mixer 40 receives the respective left-handed circularly polarized waves from the first phase shift separation mixer 20 and the second phase shift separation mixer 30 and performs phase shift synthesis.
- phase shift synthesis one of the input signals received from the first phase shift separation mixer 20 and the second phase shift separation mixer 30 is phase-shifted at 180 ° in a combination that is opposite in phase to the other, and then synthesized. .
- the first phase shift mixer 40 outputs the combined signal wave as a combined left-handed circularly polarized wave.
- the phase amount to be phase-shifted may be changed to 180 ° and synthesized after phase-shifting at ⁇ 180 °.
- FIG. 1 the structure of the 1st phase shift mixer 40 which carries out the phase shift of the input signal received from the 2nd phase shift separation mixer 30 is shown.
- the second phase shift mixer 50 of the present embodiment is composed of a 180 ° combiner (COMB in the figure).
- the second phase shift mixer 50 receives the respective right-handed circularly polarized waves from the first phase shift separation mixer 20 and the second phase shift separation mixer 30 and performs phase shift synthesis.
- phase shift synthesis one of the input signals received from the first phase shift separation mixer 20 and the second phase shift separation mixer 30 is phase-shifted by 180 ° in a combination that is in phase with the other, and then synthesized.
- the second phase shift mixer 50 outputs the synthesized signal wave as a synthesized right-handed circularly polarized wave.
- the phase amount to be phase-shifted may be changed to 180 ° and synthesized after phase-shifting at ⁇ 180 °.
- FIG. 1 the structure of the 2nd phase shift mixer 50 which carries out the phase shift of the input signal received from the 1st phase shift separation mixer 20 is shown.
- the variable phase shifter 60 receives the output signal of the first phase shift mixer 40 and adjusts the output signal received in advance with the amount of phase shift received from the control terminal.
- the amount of phase shift input to the control terminal may be adjusted so that fading elimination is maximized. This adjustment may be performed artificially, or an automatic adjustment circuit for adjusting the phase shift amount may be provided in the multiplexer / demultiplexer 1 to automatically adjust the phase shift amount. Further, the computer of the subsequent circuit may automatically adjust the phase shift amount.
- the variable phase shifter 60 outputs the adjusted signal wave as an adjusted circularly polarized wave. In addition, it may replace with adjustment of the output signal of the 1st phase shift mixer 40, and you may comprise so that the output signal of the 2nd phase shift mixer 50 may be adjusted.
- the output terminal 70 outputs the output signal of the variable phase shifter 60 and the output signal of the other first phase shift mixer 40 or the second phase shift mixer 50 not input to the variable phase shifter 60, respectively. To do.
- This output signal is used in a circuit network (a multiplexer, a demodulator, an amplifier, a signal processing unit, an information processing unit, etc., arranged as necessary) arranged in a subsequent stage.
- a circuit network a multiplexer, a demodulator, an amplifier, a signal processing unit, an information processing unit, etc., arranged as necessary
- FIG. 3 is an explanatory diagram for explaining the phase difference of the signal wave reaching the 4-wire helical antenna 2.
- each antenna element of the 4-wire helical antenna 2 is shown in a plate shape.
- each antenna element As shown in the figure, a signal having a phase difference of 90 ° between right-handed circular polarization and left-handed circular polarization is input to each antenna element.
- each RHCP (right-handed circularly polarized wave) signal When a single-phase antenna element is set to 0 °, each RHCP (right-handed circularly polarized wave) signal has a phase difference of 0deg, 90deg, 180deg, 270deg, and each LHCP (left-handed circularly polarized wave) signal has 0deg,- There is a phase difference of 90deg, -180deg, -270deg.
- a circularly polarized signal from an artificial satellite is received by a satellite signal receiver 8 (antenna device 3, four-wire helical antenna 2, four helical antenna elements).
- a circularly polarized signal from the satellite is directly incident on the antenna, and a signal wave that is reflected on the ground and incident on the 4-wire helical antenna 2 is generated. Due to the interference of these two signal waves, the radio wave becomes weaker or stronger. If the main signal from the satellite is RHCP (right-handed circularly polarized wave), the reflected wave from the ground may be displaced to the LHCP (left-handed circularly polarized wave) component.
- RHCP right-handed circularly polarized wave
- the antenna device 3 first separates and phase-synthesizes each signal wave received by the 4-wire helical antenna 2 by the first phase-shifting / separating mixer 20 and the second phase-shifting / separating mixer 30. Next, the antenna device 3 phase-combines the synthesized right-handed circularly polarized wave component and the synthesized left-handed circularly polarized wave component by the first phase-shift mixer 40 and the second phase-shift mixer 50, respectively.
- One of the two mixed waves is adjusted by the variable phase shifter 60 and is output to the subsequent circuit 4 together with the unadjusted mixed wave.
- the antenna device 3 of the 4-wire helical antenna 2 that is not easily affected by the multipath signal can be obtained.
- the satellite signal processing unit 7 is configured to multiplex two mixed waves obtained from the antenna device 3 after being amplified or attenuated as necessary by the post-stage circuit 5, thereby providing a highly accurate satellite. Signal acquisition and good information processing can be realized.
- the multiplexer / demultiplexer and the antenna apparatus to which the present invention is applied can provide a mechanism for reducing the influence of multipath.
- a multiplexer / demultiplexer connected to a 4-wire helical antenna that reduces the influence of multipath, and an antenna device of a 4-wire helical antenna.
- a first phase-shifting / separating mixer that outputs the first left-handed circularly polarized wave and the first right-handed circularly-polarized wave, The three-phase input signal and the four-phase input signal are received from the input terminal, and the three-phase input signal and the four-phase input signal are alternately in-phase with each other at 90 degrees or ⁇ 90
- a second phase-shifting / separating mixer that outputs a third left-handed circularly polarized wave and a fourth right-handed circularly polarized wave, The first left-handed circularly polarized wave and the second left-handed circularly-polarized wave are received, and one of the first left-handed circularly polarized wave and the second left-handed circularly polarized wave is reversed 180 to the other.
- a first phase shift mixer that outputs a combined left-handed circularly polarized wave after being phase-shifted at a degree or -180 degrees;
- the first right-handed circularly polarized wave and the second right-handed circularly polarized wave are received, and one of the first right-handed circularly polarized wave and the second right-handed circularly polarized wave is in phase with the other.
- a second phase-shifting mixer that outputs a combined right-handed circularly polarized wave after being phase-shifted by 180 degrees or -180 degrees in combination;
- a variable phase shifter that receives one of the synthetic left-handed circularly polarized wave and the synthetic right-handed circularly polarized wave, adjusts the phase shift amount received in advance from the control terminal, and outputs the adjusted circularly polarized wave;
- a multiplexer / demultiplexer comprising: the adjusted circularly polarized wave; and an output terminal for outputting the other of the synthesized left-handed circularly polarized wave and the synthesized right-handed circularly polarized wave.
- Each of the first phase-shifting / separating mixer and the second phase-shifting / separating mixer is composed of a hybrid.
- Each of the first phase shift mixer and the second phase shift mixer is composed of a combiner.
- An antenna device including the multiplexer / demultiplexer according to the above-described additional description and a 4-wire helical antenna connected to an input end of the multiplexer / demultiplexer.
- a satellite signal receiver including the antenna device according to the above supplementary note and a satellite signal processing unit that uses the satellite signal received from the antenna device.
- [Appendix 9] Accepts 1- to 4-phase input signals from the input terminals connected to each phase of a 4-wire helical antenna having 1 to 4 phases, 90 degrees or ⁇ 90 in a combination in which the one-phase input signal and the two-phase input signal are alternately in-phase with the one-phase input signal and the two-phase input signal received from the input terminal.
- the first left-handed circularly polarized wave and the first right-handed circularly-polarized wave The three-phase input signal and the four-phase input signal are received from the input terminal, and the three-phase input signal and the four-phase input signal are alternately in-phase with each other at 90 degrees or ⁇ 90
- the third left-handed circularly polarized wave and the fourth right-handed circularly polarized wave are alternately in-phase with each other at 90 degrees or ⁇ 90.
- the first left-handed circularly polarized wave and the second left-handed circularly-polarized wave are received, and one of the first left-handed circularly polarized wave and the second left-handed circularly polarized wave is reversed 180 to the other.
- Synthesize after phase shifting at a degree or -180 degrees, and output a synthetic left-handed circularly polarized wave The first right-handed circularly polarized wave and the second right-handed circularly polarized wave are received, and one of the first right-handed circularly polarized wave and the second right-handed circularly polarized wave is in phase with the other.
- the present invention can be used for a satellite signal receiver (antenna device portion) useful for telemetry and command transmission with, for example, a communication satellite or an observation satellite.
- the present invention can be used for devices that perform communication using a 4-wire helical antenna.
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Abstract
Description
[付記1]
1相から4相を有する4線式ヘリカルアンテナの各相とそれぞれ接続して、1相から4相の入力信号をそれぞれ受け付ける入力端と、
前記入力端から前記1相の入力信号と前記2相の入力信号とを受けて、前記1相の入力信号と前記2相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第1の左旋円偏波と第1の右旋円偏波とを出力する第1の移相分離混合器と、
前記入力端から前記3相の入力信号と前記4相の入力信号とを受けて、前記3相の入力信号と前記4相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第3の左旋円偏波と第4の右旋円偏波とを出力する第2の移相分離混合器と、
前記第1の左旋円偏波と前記第2の左旋円偏波を受け付けて、前記第1の左旋円偏波または前記第2の左旋円偏波の一方を他方に逆相に成る組み合わせで180度又は-180度で移相した後に合成して、合成左旋円偏波を出力する第1の移相混合器と、
前記第1の右旋円偏波と前記第2の右旋円偏波を受け付けて、前記第1の右旋円偏波または前記第2の右旋円偏波の一方を他方に同相に成る組み合わせで180度又は-180度で移相した後に合成して、合成右旋円偏波を出力する第2の移相混合器と、
前記合成左旋円偏波及び前記合成右旋円偏波の一方を受け付けて、予め制御端子から受け付けた移相量で調整して、調整した円偏波を出力する可変移相器と、
前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方とを出力する出力端と
を有することを特徴とする分合波器。
前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方とを合成する合波器を更に含むことを特徴とする上記付記記載の分合波器。
前記第1の移相分離混合器および前記第2の移相分離混合器の各々はハイブリッドから成ることを特徴とする上記付記記載の分合波器。
前記第1の移相混合器および前記第2の移相混合器の各々は、コンバイナーから成ることを特徴とする上記付記記載の分合波器。
前記可変移相器に入力する移相量を該可変移相器の出力パワーが最大になるように調整する自動調整回路を具備することを特徴とする上記付記記載の分合波器。
上記付記記載に記載の分合波器と、前記分合波器の入力端に接続する4線式ヘリカルアンテナとを含むアンテナ装置。
上記付記記載のアンテナ装置と、このアンテナ装置から受信した衛星信号を使用する衛星信号処理部を含む衛星信号受信機。
前記可変移相器に入力する移相量を該可変移相器の出力パワーを最大に調整する衛星信号処理部を具備することを特徴とする上記付記記載の衛星信号受信機。
1相から4相を有する4線式ヘリカルアンテナの各相とそれぞれ接続した入力端から1相から4相の入力信号をそれぞれ受け付け、
前記入力端から前記1相の入力信号と前記2相の入力信号とを受けて、前記1相の入力信号と前記2相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第1の左旋円偏波と第1の右旋円偏波とを出力し、
前記入力端から前記3相の入力信号と前記4相の入力信号とを受けて、前記3相の入力信号と前記4相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第3の左旋円偏波と第4の右旋円偏波とを出力し、
前記第1の左旋円偏波と前記第2の左旋円偏波を受け付けて、前記第1の左旋円偏波または前記第2の左旋円偏波の一方を他方に逆相に成る組み合わせで180度又は-180度で移相した後に合成して、合成左旋円偏波を出力し、
前記第1の右旋円偏波と前記第2の右旋円偏波を受け付けて、前記第1の右旋円偏波または前記第2の右旋円偏波の一方を他方に同相に成る組み合わせで180度又は-180度で移相した後に合成して、合成右旋円偏波を出力し、
前記合成左旋円偏波及び前記合成右旋円偏波の一方を受け付けて、予め制御端子から受け付けた移相量で調整して、調整した円偏波を出力し、
前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方を出力端からそれぞれ出力する
分合波器によるフェージング消去方法。
前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方とを合波器で合成することを特徴とする上記付記記載のフェージング消去方法。
2 4線式ヘリカルアンテナ
3 アンテナ装置
4 後段回路
5 プロセッサ
6 メモリー/ストレージ
7 衛星信号処理部
8 衛星信号受信機
10 入力端
20 第1の移相分離混合器
30 第2の移相分離混合器
40 第1の移相混合器
50 第2の移相混合器
60 可変移相器
70 出力端
Claims (6)
- 1相から4相(1相,2相,3相,及び4相)を有する4線式ヘリカルアンテナの各相とそれぞれ接続して、1相から4相の入力信号をそれぞれ受け付ける入力端と、
前記入力端から前記1相の入力信号と前記2相の入力信号とを受けて、前記1相の入力信号と前記2相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第1の左旋円偏波と第1の右旋円偏波とを出力する第1の移相分離混合器と、
前記入力端から前記3相の入力信号と前記4相の入力信号とを受けて、前記3相の入力信号と前記4相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第3の左旋円偏波と第4の右旋円偏波とを出力する第2の移相分離混合器と、
前記第1の左旋円偏波と前記第2の左旋円偏波を受け付けて、前記第1の左旋円偏波または前記第2の左旋円偏波の一方を他方に逆相に成る組み合わせで180度又は-180度で移相した後に合成して、合成左旋円偏波を出力する第1の移相混合器と、
前記第1の右旋円偏波と前記第2の右旋円偏波を受け付けて、前記第1の右旋円偏波または前記第2の右旋円偏波の一方を他方に同相に成る組み合わせで180度又は-180度で移相した後に合成して、合成右旋円偏波を出力する第2の移相混合器と、
前記合成左旋円偏波及び前記合成右旋円偏波の一方を受け付けて、予め制御端子から受け付けた移相量で調整して、調整した円偏波を出力する可変移相器と、
前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方とを出力する出力端と
を有することを特徴とする分合波器。 - 前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方とを合成する合波器を更に含むことを特徴とする請求項1に記載の分合波器。
- 前記第1の移相分離混合器および前記第2の移相分離混合器の各々はハイブリッドから成ることを特徴とする請求項1又は2に記載の分合波器。
- 前記第1の移相混合器および前記第2の移相混合器の各々は、コンバイナーから成ることを特徴とする請求項1又は2に記載の分合波器。
- 請求項1ないし4の何れか一項に記載の分合波器と、前記分合波器の入力端に接続する4線式ヘリカルアンテナとを含むアンテナ装置。
- 1相から4相(1相,2相,3相,及び4相)を有する4線式ヘリカルアンテナの各相とそれぞれ接続した入力端から1相から4相の入力信号をそれぞれ受け付け、
前記入力端から前記1相の入力信号と前記2相の入力信号とを受けて、前記1相の入力信号と前記2相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第1の左旋円偏波と第1の右旋円偏波とを出力し、
前記入力端から前記3相の入力信号と前記4相の入力信号とを受けて、前記3相の入力信号と前記4相の入力信号とをそれぞれ交互に同相に成る組み合わせで90度又は-90度で移相した後に合成して、第3の左旋円偏波と第4の右旋円偏波とを出力し、
前記第1の左旋円偏波と前記第2の左旋円偏波を受け付けて、前記第1の左旋円偏波または前記第2の左旋円偏波の一方を他方に逆相に成る組み合わせで180度又は-180度で移相した後に合成して、合成左旋円偏波を出力し、
前記第1の右旋円偏波と前記第2の右旋円偏波を受け付けて、前記第1の右旋円偏波または前記第2の右旋円偏波の一方を他方に同相に成る組み合わせで180度又は-180度で移相した後に合成して、合成右旋円偏波を出力し、
前記合成左旋円偏波及び前記合成右旋円偏波の一方を受け付けて、予め制御端子から受け付けた移相量で調整して、調整した円偏波を出力し、
前記調整した円偏波と、前記合成左旋円偏波及び前記合成右旋円偏波の他方を出力端からそれぞれ出力する
分合波器によるフェージング消去方法。
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