WO2022038725A1 - 導波管モード測定装置、導波管モード測定方法、導波管システム及び導波管装置 - Google Patents

導波管モード測定装置、導波管モード測定方法、導波管システム及び導波管装置 Download PDF

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WO2022038725A1
WO2022038725A1 PCT/JP2020/031360 JP2020031360W WO2022038725A1 WO 2022038725 A1 WO2022038725 A1 WO 2022038725A1 JP 2020031360 W JP2020031360 W JP 2020031360W WO 2022038725 A1 WO2022038725 A1 WO 2022038725A1
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Prior art keywords
average value
probe
mode
amplitude
waveguide
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PCT/JP2020/031360
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English (en)
French (fr)
Japanese (ja)
Inventor
伸一 山本
宏昌 中嶋
秀憲 湯川
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三菱電機株式会社
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Priority to PCT/JP2020/031360 priority Critical patent/WO2022038725A1/ja
Priority to JP2022543204A priority patent/JP7186932B2/ja
Publication of WO2022038725A1 publication Critical patent/WO2022038725A1/ja

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics

Definitions

  • the present disclosure relates to a waveguide mode measuring device, a waveguide mode measuring method, a waveguide system, and a waveguide device.
  • a horn antenna is used to radiate the electromagnetic wave in the waveguide mode into space, and the electromagnetic wave in space is emitted.
  • a method of measuring the amplitude of each electromagnetic wave by analyzing the radiation pattern hereinafter referred to as "conventional waveguide mode measuring method").
  • the electromagnetic wave radiated in the space may have an adverse effect such as electromagnetic interference on the peripheral equipment of the circular waveguide. be.
  • an adverse effect such as electromagnetic interference on the peripheral equipment of the circular waveguide. be.
  • the conventional waveguide mode measuring method has a problem that if the radiation of the electromagnetic wave to the space is stopped, the amplitude of the electromagnetic wave cannot be measured. Even if the power distributor disclosed in Patent Document 1 is applied to a conventional waveguide mode measuring device, the adverse effect on peripheral devices cannot be suppressed, so that the above problem cannot be solved.
  • the present disclosure has been made to solve the above-mentioned problems, and is a waveguide mode measuring device and a guide that can measure the amplitude of an electromagnetic wave without radiating an electromagnetic wave in a circular waveguide into space.
  • the purpose is to obtain a waveguide mode measurement method.
  • the waveguide mode measuring device measures the amplitude of the TM01 mode electromagnetic wave propagating in a circular waveguide having a tube wall or the TE11 mode electromagnetic wave propagating in a circular waveguide mode. It is a measuring device, and the measured value of the voltage appearing in each probe is acquired from the measuring instrument connected to the end of the plurality of probes inserted in each of the plurality of holes penetrating the tube wall.
  • the amplitude of the electromagnetic wave in the TM01 mode is calculated from the measured value acquisition unit, the average value calculation unit that calculates the average value of multiple measured values acquired by the measurement value acquisition unit, and the average value calculated by the average value calculation unit.
  • the average value calculated by the average value calculation unit is subtracted from each measured value acquired by the first amplitude calculation processing unit or the measurement value acquisition unit, and the weighting of a plurality of measured values after the average value is subtracted.
  • the second amplitude calculation processing unit includes an amplitude calculation unit including one or more amplitude calculation processing units.
  • the amplitude of the electromagnetic wave can be measured without radiating the electromagnetic wave in the circular waveguide into the space.
  • FIG. 1 It is a block diagram which shows the waveguide system which concerns on Embodiment 1.
  • FIG. It is a perspective view which shows the waveguide device 1 which concerns on Embodiment 1.
  • FIG. It is a side view which shows the waveguide device 1 which concerns on Embodiment 1.
  • FIG. It is sectional drawing which shows the waveguide device 1 which concerns on Embodiment 1.
  • FIG. It is an enlarged view which shows the main part of the waveguide apparatus 1 which concerns on Embodiment 1.
  • FIG. It is a block diagram which shows the waveguide mode measuring apparatus 5 which concerns on Embodiment 1.
  • FIG. It is a hardware block diagram which shows the hardware of the waveguide mode measuring apparatus 5 which concerns on Embodiment 1.
  • FIG. 3 is a hardware configuration diagram of a computer when the waveguide mode measuring device 5 is realized by software, firmware, or the like.
  • 9A is an explanatory diagram showing each of the electric field and the magnetic field of the electromagnetic wave in the TE11A mode
  • FIG. 9B is an explanatory diagram showing each of the electric field and the magnetic field of the electromagnetic wave in the TE11B mode
  • FIG. 9C is the electric field and the magnetic field of the electromagnetic wave in the TM01 mode.
  • It is a flowchart which shows the waveguide mode measuring method which is the processing procedure of the waveguide mode measuring apparatus 5.
  • It is a block diagram which shows the waveguide system which concerns on Embodiment 2.
  • It is a side view which shows the waveguide device 1 which concerns on Embodiment 2.
  • FIG. is sectional drawing which shows the waveguide device 1 which concerns on Embodiment 2.
  • FIG. 1 is a configuration diagram showing a waveguide system according to the first embodiment.
  • the waveguide system shown in FIG. 1 includes a waveguide device 1, a measuring device 4, and a waveguide mode measuring device 5.
  • the waveguide device 1 includes a circular waveguide 2 and an n-th power probe 3 of 2.
  • n is an integer of 2 or more.
  • the term “probe 3” may be used.
  • the circular waveguide 2 has a TM01 mode and a TE11 mode as the waveguide modes, respectively.
  • the circular waveguide 2 shown in FIG. 1 may have a TM01 mode and a TE11 mode, respectively, and may further have a waveguide mode different from each of the TM01 mode and the TE11 mode.
  • FIG. 2 is a perspective view showing the waveguide device 1 according to the first embodiment
  • FIG. 3 is a side view showing the waveguide device 1 according to the first embodiment
  • FIG. 4 is a side view showing the embodiment.
  • It is sectional drawing which shows the waveguide device 1 which concerns on Embodiment 1.
  • FIG. FIG. 5 is an enlarged view showing a main part of the waveguide device 1 according to the first embodiment.
  • the circular waveguide 2 has a tube wall 2a, and the tube wall 2a is provided with a plurality of holes 2b as through holes.
  • the number of holes 2b is 2 to the nth root, and 2 to the nth root holes 2b are arranged at intervals of 45 degrees in the circumferential direction of the pipe wall 2a.
  • 2 n-th power probes 3 are arranged at intervals of 45 degrees in the circumferential direction of the tube wall 2a.
  • Probe 3-1 is the first probe
  • probe 3-2 is the second probe
  • probe 3-3 is the third probe
  • probe 3-4 is the fourth probe.
  • Probe 3-5 is the fifth probe
  • probe 3-6 is the sixth probe
  • probe 3-7 is the seventh probe
  • probe 3-8 is the eighth probe.
  • the probe 3-m When the probe 3-m is realized by a coaxial line, the probe 3-m has an inner conductor 3a of the coaxial line.
  • One end of the probe 3-m is inserted into a hole 2b penetrating the tube wall 2a of the circular waveguide 2.
  • the other end of the probe 3-m is connected to the measuring instrument 4.
  • the inner conductor 3a of the coaxial line is inserted into the hole 2b as shown in FIG. In FIG. 5, the inner conductor 3a of the coaxial line is inserted into the hole 2b, and the tip of the inner conductor 3a remains at the position of the hole 2b.
  • the tip of the inner conductor 3a may be inserted into the circular waveguide 2 through the hole 2b.
  • the probes 3 having the same shape are used as the eight probes 3-1 to 3-8.
  • probes 3 having different shapes may be used as probes 3-1 to 3-8.
  • the probe 3-m is realized by a coaxial line.
  • the probe 3-m may be realized by, for example, a rectangular waveguide.
  • the measuring instrument 4 is realized by, for example, an oscilloscope.
  • the other ends of the probes 3-1 to 3-8 are connected to the measuring instrument 4.
  • the measuring instrument 4 measures the voltage appearing in each probe 3-m.
  • the waveguide mode measuring device 5 includes a measured value acquisition unit 11, an average value calculation unit 12, and an amplitude calculation unit 13.
  • the waveguide mode measuring device 5 calculates each of the amplitude of the electromagnetic wave in the TM01 mode and the amplitude of the electromagnetic wave in the TE11 mode.
  • FIG. 6 is a block diagram showing the waveguide mode measuring device 5 according to the first embodiment.
  • FIG. 7 is a hardware configuration diagram showing the hardware of the waveguide mode measuring device 5 according to the first embodiment.
  • the measured value acquisition unit 11 is realized by, for example, the measured value acquisition circuit 21 shown in FIG. 7.
  • the measured value acquisition unit 11 outputs the measurement information to each of the average value calculation unit 12 and the amplitude calculation unit 13.
  • the average value calculation unit 12 is realized by, for example, the average value calculation circuit 22 shown in FIG. 7.
  • the average value calculation unit 12 calculates the average value Pave of the measured values P1 to P8 acquired by the measured value acquisition unit 11.
  • the mean value calculation unit 12 outputs the mean value Pave to the amplitude calculation processing unit 13.
  • the amplitude calculation unit 13 includes a first amplitude calculation processing unit 14 and a second amplitude calculation processing unit 15.
  • the amplitude calculation unit 13 calculates the electromagnetic wave amplitude Amp 1 in the TM01 mode and the electromagnetic wave amplitudes Amp 2A and Amp 2B in the TE11 mode.
  • the amplitude calculation unit 13 includes a first amplitude calculation processing unit 14 and a second amplitude calculation processing unit 15.
  • the amplitude calculation unit 13 may include either the first amplitude calculation processing unit 14 or the second amplitude calculation processing unit 15. .
  • the first amplitude calculation processing unit 14 is realized by, for example, the first amplitude calculation circuit 23 shown in FIG. 7.
  • the first amplitude calculation processing unit 14 calculates the amplitude Amp 1 of the electromagnetic wave in the TM01 mode from the average value Ave calculated by the average value calculation unit 12.
  • the second amplitude calculation processing unit 15 is realized by, for example, the second amplitude calculation circuit 24 shown in FIG. 7.
  • the second amplitude calculation processing unit 15 subtracts the average value Pave calculated by the average value calculation unit 12 from each measured value Pm acquired by the measurement value acquisition unit 11, so that the average value is subtracted. Calculate the measured value Pm'.
  • the second amplitude calculation processing unit 15 calculates the weighted average value of the plurality of measured values Pm'after the average value is subtracted, and calculates the amplitudes Amp 2A and Amp 2B of the electromagnetic wave in the TE11 mode from the weighted average value.
  • each of the measured value acquisition unit 11, the average value calculation unit 12, the first amplitude calculation processing unit 14, and the second amplitude calculation processing unit 15, which are the components of the waveguide mode measuring device 5, is shown in FIG. It is assumed that it is realized by dedicated hardware as shown in 7. That is, it is assumed that the waveguide mode measuring device 5 is realized by the measured value acquisition circuit 21, the mean value calculation circuit 22, the first amplitude calculation circuit 23, and the second amplitude calculation circuit 24.
  • Each of the measured value acquisition circuit 21, the average value calculation circuit 22, the first amplitude calculation circuit 23 and the second amplitude calculation circuit 24 is, for example, a single circuit, a composite circuit, a programmed processor, or a parallel programmed processor. , ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or a combination thereof.
  • the components of the waveguide mode measuring device 5 are not limited to those realized by dedicated hardware, and the waveguide mode measuring device 5 is realized by software, firmware, or a combination of software and firmware. It may be what is done.
  • the software or firmware is stored as a program in the memory of the computer.
  • a computer means hardware that executes a program, and corresponds to, for example, a CPU (Central Processing Unit), a central processing unit, a processing unit, a computing device, a microprocessor, a microcomputer, a processor, or a DSP (Digital Signal Processor). do.
  • FIG. 8 is a hardware configuration diagram of a computer when the waveguide mode measuring device 5 is realized by software, firmware, or the like.
  • the waveguide mode measuring device 5 is realized by software, firmware, or the like
  • the measured value acquisition unit 11 the average value calculation unit 12, the first amplitude calculation processing unit 14, and the second amplitude calculation processing unit 15, respectively.
  • a program for causing the computer to execute the processing procedure of is stored in the memory 31.
  • the processor 32 of the computer executes the program stored in the memory 31.
  • FIG. 7 shows an example in which each of the components of the waveguide mode measuring device 5 is realized by dedicated hardware
  • FIG. 8 shows an example in which the waveguide mode measuring device 5 is realized by software, firmware, or the like.
  • An example is shown. However, this is only an example, and some components in the waveguide mode measuring device 5 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, or the like. ..
  • the circular waveguide 2 has at least TM01 mode and TE11 mode as waveguide modes.
  • the electromagnetic wave in the TE11 mode includes a first polarization and a second polarization orthogonal to the first polarization.
  • the first polarization is, for example, vertical vertical polarization as shown in FIG. 9A
  • the second polarization is, for example, horizontal horizontal polarization as shown in FIG. 9B.
  • the vertical polarization in the vertical direction as shown in FIG. 9A is referred to as an electromagnetic wave in the TE11A mode.
  • the horizontal horizontal polarization as shown in FIG. 9B is referred to as an electromagnetic wave in the TE11B mode.
  • FIG. 9A is an explanatory diagram showing each of the electric field and the magnetic field of the electromagnetic wave in the TE11A mode
  • FIG. 9B is an explanatory diagram showing each of the electric field and the magnetic field of the electromagnetic wave in the TE11B mode
  • FIG. 9C is an explanatory diagram showing each of the electric field and the magnetic field of the electromagnetic wave in the TM01 mode.
  • each of the vertical polarization in the vertical direction and the horizontal polarization in the horizontal direction is defined as follows. In FIG.
  • Eight probes 3-1 to 3-8 are arranged at intervals of 45 degrees in the circumferential direction on the tube wall 2a of the circular waveguide 2.
  • the amount of binding is represented by the amplitude of the electromagnetic wave coupled to the probe 3-m and the phase of the electromagnetic wave coupled to the probe 3-m.
  • the amplitude of the electromagnetic wave coupled to each of probe 3-1 and probe 3-5 is that of the electromagnetic wave coupled to each of the other probes 3-2 to 3-4, 3-6 to 3-8. It is larger than the amplitude and has the maximum amplitude.
  • the phase of the electromagnetic wave coupled to the probe 3-1 and the phase of the electromagnetic wave coupled to the probe 3-5 are opposite in phase.
  • the amplitude of the electromagnetic wave coupled to each of the probe 3-2 and the probe 3-6 is -3 [dB] rather than the maximum amplitude.
  • the phase of the electromagnetic wave coupled to the probe 3-2 and the phase of the electromagnetic wave coupled to the probe 3-6 are opposite in phase.
  • the amplitude of the electromagnetic wave coupled to each of the probe 3-4 and the probe 3-8 is -3 [dB] rather than the maximum amplitude.
  • the phase of the electromagnetic wave coupled to the probe 3-4 and the phase of the electromagnetic wave coupled to the probe 3-8 are opposite in phase. Almost no electromagnetic wave is bound to each of the probe 3-3 and the probe 3-7.
  • the amplitude of the electromagnetic wave bound to each of probe 3-3 and probe 3-7 is bound to each of the other probes 3-1, 3-2, 3-4 to 3-6, 3-8. It is larger than the amplitude of the electromagnetic wave to be generated and has the maximum amplitude.
  • the phase of the electromagnetic wave coupled to the probe 3-3 and the phase of the electromagnetic wave coupled to the probe 3-7 are opposite in phase.
  • the amplitude of the electromagnetic wave coupled to each of the probe 3-2 and the probe 3-6 is -3 [dB] rather than the maximum amplitude.
  • the phase of the electromagnetic wave coupled to the probe 3-2 and the phase of the electromagnetic wave coupled to the probe 3-6 are opposite in phase.
  • the amplitude of the electromagnetic wave coupled to each of the probe 3-4 and the probe 3-8 is -3 [dB] rather than the maximum amplitude.
  • the phase of the electromagnetic wave coupled to the probe 3-4 and the phase of the electromagnetic wave coupled to the probe 3-8 are opposite in phase. Almost no electromagnetic wave is bound to each of the probe 3-1 and the probe 3-5.
  • the amount of electromagnetic waves bound to each probe 3-m is the relative amount of binding as described above.
  • the amount of electromagnetic waves bound to each probe 3-m is used in the TM01 mode for all the probes 3.
  • the binding amount B TM01 , the binding amount B TE11A for all probes 3 in TE11A mode, and the binding amount B TE11B for all probes 3 in TE11B mode are calculated. Since each calculation process for the binding amount B TM01 , the binding amount B TE11A , and the binding amount B TE11B is a known technique, detailed description thereof will be omitted.
  • the amount of electromagnetic waves coupled to each probe 3-m differs depending on the shape of each probe 3-m. If the shapes of the probes 3-1 to 3-8 are different from each other, for example, a computer (not shown) may perform electromagnetic field analysis or the like to bond the amount B in the TM01 mode and the binding in the TE11A mode. The amount B TE11A and the binding amount B TE11B in the TE11B mode are calculated respectively.
  • the coupling amount B TM01 is stored in the internal memory of the first amplitude calculation processing unit 14, and each of the coupling amount B TE11A and the coupling amount B TE11B is stored in the internal memory of the second amplitude calculation processing unit 15.
  • FIG. 10 is a flowchart showing a waveguide mode measuring method, which is a processing procedure of the waveguide mode measuring device 5.
  • the measured value acquisition unit 11 of the waveguide mode measuring device 5 acquires measurement information indicating the measured value Pm of the voltage appearing in each probe 3-m from the measuring device 4 (step ST1 in FIG. 10).
  • the measured value acquisition unit 11 outputs the measurement information to each of the average value calculation unit 12 and the second amplitude calculation processing unit 15.
  • the average value calculation unit 12 acquires measurement information from the measurement value acquisition unit 11. As shown in the following equation (1), the mean value calculation unit 12 calculates the mean value Pave of the measured values P1 to P8 indicated by the measurement information (step ST2 in FIG. 10). The mean value calculation unit 12 outputs the mean value Pave to each of the first amplitude calculation processing unit 14 and the second amplitude calculation processing unit 15.
  • the first amplitude calculation processing unit 14 acquires the average value Pave from the average value calculation unit 12. As shown in the following equation (2), the first amplitude calculation processing unit 14 adds the coupling amount B TM01 in the TM01 mode stored in the internal memory to the average value Pave , thereby in the TM01 mode.
  • the first amplitude calculation processing unit 14 outputs the amplitude Amp 1 of the electromagnetic wave in the TM01 mode to, for example, an external device (not shown) that uses the electromagnetic wave in the TM01 mode.
  • the second amplitude calculation processing unit 15 has a measured value P1', a measured value P2', a measured value P4', a measured value P5', a measured value P6', and a measured value P8'.
  • the second amplitude calculation processing unit 15 has a measured value P2', a measured value P3', a measured value P4', a measured value P6', a measured value P7', and a measured value P8'. Is calculated as the second weighted average value WP ave2 (step ST6 in FIG. 10).
  • the second amplitude calculation processing unit 15 adds the coupling amount B TE11A in the TE11A mode stored in the internal memory to the first weighted average value WP ave1 .
  • the second amplitude calculation processing unit 15 adds the coupling amount B TE11B in the TE11B mode stored in the internal memory to the second weighted average value WP ave2 .
  • the amplitude Amp 2B of the electromagnetic wave in the TE11B mode is calculated (step ST8 in FIG. 10).
  • Amp 2B WP ave2 + B TE11B (7)
  • the second amplitude calculation processing unit 15 is an external device that uses each of the electromagnetic wave amplitude Amp 2A in the TE11A mode and the electromagnetic wave amplitude Amp 2B in the TE11B mode, for example, the electromagnetic wave in the TE11A mode and the electromagnetic wave in the TE11B mode. Output to) (not shown).
  • the waveguide mode measurement for measuring the amplitude of the TM01 mode electromagnetic wave propagating in the circular waveguide 2 having the tube wall 2a or the TE11 mode electromagnetic wave propagating in the circular waveguide 2.
  • the voltage appearing in each probe 3 from the measuring instrument 4 connected to the end of the plurality of probes 3 inserted in each of the plurality of holes 2b penetrating the tube wall 2a.
  • the average value calculation unit 12 that calculates the average value of the plurality of measured values acquired by the measured value acquisition unit 11, and the average value calculated by the average value calculation unit 12.
  • the average value calculated by the average value calculation unit 12 is subtracted from each measurement value acquired by the first amplitude calculation processing unit 14 for calculating the amplitude of the electromagnetic wave in the TM01 mode or the measurement value acquisition unit 11.
  • One or more amplitude calculation processes in the second amplitude calculation processing unit 15 that calculates the weighted average value of a plurality of measured values after subtracting the average value and calculates the amplitude of the electromagnetic wave in the TE11 mode from the weighted average value. It is provided with an amplitude calculation unit 13 including a unit. Therefore, the waveguide mode measuring device 5 can measure the amplitude of the electromagnetic wave without radiating the electromagnetic wave in the circular waveguide 2 into the space.
  • the circular waveguide 2 shown in FIG. 1 has a TM01 mode and a TE11 mode as waveguide modes, respectively.
  • the circular waveguide 2 shown in FIG. 1 may have, for example, a TE21 mode in addition to the TM01 mode and the TE11 mode as the waveguide mode.
  • the phases of the electromagnetic waves coupled to each of the two probes 3 arranged at opposite positions are in phase.
  • the phase of the electromagnetic wave coupled to the certain probe 3 is in phase with the phase of the electromagnetic wave coupled to the probe 3 arranged at a position 90 degrees away from the certain probe 3.
  • the average value Pave of the measured values P1 to P8 becomes 0, so that the circular waveguide 2 has the TE21 mode is the amplitude of the electromagnetic wave in the TM01 mode calculated from the average value Pave. Does not affect Amp 1 .
  • the phases of the electromagnetic waves coupled to each of the two probes 3 arranged at opposite positions are in phase, so that the circular waveguide 2 has the TE21 mode. , Does not affect the calculation of electromagnetic wave amplitudes Amp 2A and Amp 2b in TE11 mode.
  • the waveguide device 1 shown in FIG. 1 eight probes 3-1 to 3-8 are arranged in a row at intervals of 45 degrees in the circumferential direction of the tube wall 2a.
  • the value of the coefficient k included in each of the equations (4) and (5) may be changed according to the interval between the respective probes, and the eight probes 3-1 to 3-8 may be used.
  • the four coefficients k included in each of the equations (4) and (5) are set as k1, k2, k3, and k4, and different values are set according to the distance between the respective probes.
  • the probes 3-1 to 3-8 do not need to be arranged in a line in the circumferential direction of the tube wall 2a.
  • FIG. 11 is a configuration diagram showing a waveguide system according to the second embodiment.
  • FIG. 12 is a side view showing the waveguide device 1 according to the second embodiment
  • FIG. 13 is a cross-sectional view showing the waveguide device 1 according to the second embodiment.
  • Probe 3-1 is the first probe
  • probe 3-2 is the second probe
  • probe 3-3 is the third probe
  • probe 3-4 is the fourth probe.
  • the configuration of the waveguide mode measuring device 5 according to the second embodiment is the same as the configuration of the waveguide mode measuring device 5 according to the first embodiment, and the waveguide mode measuring device 5 according to the second embodiment.
  • FIG. 6 is a configuration diagram showing the above.
  • the amplitude calculation unit 13 includes a first amplitude calculation processing unit 14 and a second amplitude calculation processing unit 15. However, even if the amplitude calculation unit 13 calculates the amplitude of the electromagnetic wave in any one of the amplitude Amp 1 of the electromagnetic wave in the TM01 mode and the amplitude Amp 2A and Amp 2B of the electromagnetic wave in the TE11 mode. good.
  • the amplitude calculation unit 13 may include either the first amplitude calculation processing unit 14 or the second amplitude calculation processing unit 15. ..
  • the measured value acquisition unit 11 of the waveguide mode measuring device 5 acquires measurement information indicating the measured value Pm of the voltage appearing in each probe 3-m from the measuring device 4.
  • the measured value acquisition unit 11 outputs the measurement information to each of the average value calculation unit 12 and the second amplitude calculation processing unit 15.
  • the average value calculation unit 12 acquires measurement information from the measurement value acquisition unit 11. As shown in the following equation (8), the average value calculation unit 12 calculates the average value Pave of the measured values P1 to P4 indicated by the measurement information. The mean value calculation unit 12 outputs the mean value Pave to each of the first amplitude calculation processing unit 14 and the second amplitude calculation processing unit 15.
  • the second amplitude calculation processing unit 15 calculates the weighted average value of the measured value P1', the measured value P2', and the measured value P4'as the first weighted average value WP ave1. do.
  • the second amplitude calculation processing unit 15 calculates the weighted average value of the measured value P2', the measured value P3', and the measured value P4'as the second weighted average value WP ave2. do.
  • the second amplitude calculation processing unit 15 adds the coupling amount B TE11A in the TE11A mode stored in the internal memory to the first weighted average value WP ave1 .
  • the amplitude Amp 2A of the electromagnetic wave in the TE11 mode is calculated.
  • Amp 2A WP ave1 + B TE11A (13)
  • the second amplitude calculation processing unit 15 adds the coupling amount B TE11B in the TE11B mode stored in the internal memory to the second weighted average value WP ave2 .
  • the amplitude Amp 2B of the electromagnetic wave in the TE11B mode is calculated.
  • Amp 2B WP ave2 + B TE11B (14)
  • the second amplitude calculation processing unit 15 is an external device that uses each of the electromagnetic wave amplitude Amp 2A in the TE11A mode and the electromagnetic wave amplitude Amp 2B in the TE11B mode, for example, the electromagnetic wave in the TE11A mode and the electromagnetic wave in the TE11B mode. Output to) (not shown).
  • the number of the plurality of probes 3 inserted into the holes 2b of the tube wall 2a is 2 to the nth power.
  • the value of the coefficient k included in each of the equations (4) and (5) or the value of the coefficient k included in each of the equations (11) and (12) is changed and weighted.
  • the number of the plurality of probes 3 inserted into the holes 2b of the tube wall 2a does not have to be 2 to the nth power.
  • the four coefficients k included in each of the equations (4) and (5) are set to different k according to the number of probes 3 and the position of each probe 3, and the number of probes 3 is set. And, depending on the position of each probe 3, it is necessary to set different values to k.
  • any combination of the embodiments can be freely combined, any component of the embodiment can be modified, or any component can be omitted in each embodiment.
  • the present disclosure is suitable for a waveguide mode measuring device and a waveguide mode measuring method.
  • the present disclosure is suitable for waveguide systems including waveguide devices and waveguide mode measuring devices.
  • the present disclosure is suitable for waveguide devices.
  • Waveguide device 1 Waveguide device, 2 Circular waveguide, 2a Waveguide wall, 2b hole, 3,3-1 to 3-8 probe, 3a Inner conductor, 4 Measuring instrument, 5 Waveguide mode measuring device, 11 Measurement value acquisition Unit, 12 average value calculation unit, 13 amplitude calculation unit, 14 first amplitude calculation processing unit, 15 second amplitude calculation processing unit, 21 measurement value acquisition circuit, 22 average value calculation circuit, 23 first amplitude calculation processing unit. , 24 Second amplitude calculation circuit, 31 Memory, 32 Processor.

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PCT/JP2020/031360 2020-08-20 2020-08-20 導波管モード測定装置、導波管モード測定方法、導波管システム及び導波管装置 WO2022038725A1 (ja)

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