WO2009014073A1 - 誤差要因測定装置、方法、プログラム、記録媒体および該装置を備えた出力測定装置、入力測定装置 - Google Patents
誤差要因測定装置、方法、プログラム、記録媒体および該装置を備えた出力測定装置、入力測定装置 Download PDFInfo
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- WO2009014073A1 WO2009014073A1 PCT/JP2008/062965 JP2008062965W WO2009014073A1 WO 2009014073 A1 WO2009014073 A1 WO 2009014073A1 JP 2008062965 W JP2008062965 W JP 2008062965W WO 2009014073 A1 WO2009014073 A1 WO 2009014073A1
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- error factor
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- 238000000034 method Methods 0.000 title claims description 39
- 238000005259 measurement Methods 0.000 claims abstract description 289
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 153
- 238000000691 measurement method Methods 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 20
- 238000012937 correction Methods 0.000 claims description 17
- 238000009795 derivation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 17
- 239000011159 matrix material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000237503 Pectinidae Species 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
Definitions
- the present invention relates to calibration of a signal source that generates a signal.
- the signal is transmitted from the signal source to the receiver via the DUT.
- This signal is received by the receiving unit.
- the S-parameters and frequency characteristics of the DUT can be obtained.
- measurement system errors occur in the measurement due to inconsistencies between the measurement system such as the signal source and the DUT.
- the measurement system errors are, for example, E d: error caused by the direction of the bridge, E r: error caused by frequency tracking, and E s: error caused by source matching.
- the error can be corrected as described in Patent Document 1.
- Such correction is called calibration.
- E r is expressed as the product of error E r 1 related to signal input and error E r 2 related to signal reflection.
- E r 1 and E r 2 can be measured (for example, Patent Document 2 (International Publication No. 2 0 0 4/0 4 9 5 6 No. 4 brochure)).
- the present invention can measure the error factor of the signal source when the connector is connected to the signal source regardless of whether the error factor of the connector (eg, cable, switch) is known. The challenge is to do so.
- An error factor measurement device includes: (1) a first signal generation unit having a first signal source that generates a first signal; and a first output terminal that outputs the first signal; A second signal generator having a second signal source for generating two signals, a second output terminal for outputting the second signal, and (3) the first output terminal and the second output terminal.
- An error factor measuring device for measuring an error factor in the second signal generation unit based on a measurement result of the first signal and the second signal in a signal system having: Based on the measurement result of one signal and the measurement result of the second signal, a connection device characteristic measurement unit that measures the characteristics of the connection device, and before the first signal is reflected by the first output terminal And the result of reflection in the second signal generator And the ratio of the measurement result before the second signal is reflected by the second output terminal to the measurement result of the one reflected in the first signal generation unit.
- the product of each component of the error factor caused by the frequency tracking of the second signal generator and the component of the error factor caused by the frequency tracking of the first signal generator and the output / reflection ratio measuring unit Frequency tracking of the second signal generator based on the error factor recording unit to be recorded, the measurement result of the characteristics of the connector, the measurement result of the output / reflection ratio measurement unit, and the recorded content of the error factor recording unit And an error factor deriving unit for deriving each component of the error factor resulting from.
- a first signal generation unit having a first signal source for generating a first signal and a first output terminal for outputting the first signal; (2) generating a second signal A second signal source having a second signal source, a second output terminal for outputting the second signal, and (3) a connector for connecting the first output terminal and the second output terminal;
- An error factor measurement device for measuring an error factor in the second signal generation unit is provided based on the measurement results of the first signal and the second signal in the signal system having the following.
- the connection device characteristic measurement unit measures the characteristics of the connection device based on the measurement result of the first signal and the measurement result of the second signal.
- An output / reflection ratio measurement unit that compares a measurement result before the first signal is reflected by the first output terminal and a measurement result of the reflection of the first signal reflected inside the second signal generation unit; and A ratio between a measurement result before the second signal is reflected by the second output terminal and a measurement result of the signal reflected inside the first signal generation unit is measured.
- An error factor recording unit records a product of each component of the error factor caused by frequency tracking of the first signal generation unit and each component of the error factor caused by frequency tracking of the second signal generation unit.
- the error factor deriving unit is caused by frequency tracking of the second signal generating unit based on a measurement result of the characteristics of the connector, a measurement result of the output / reflection ratio measuring unit, and a recorded content of the error factor recording unit. Each component of the error factor is derived.
- the error factor recording unit records Eil, Eol, and Ei2 X Eo2,
- Eil is an error factor of the first signal generation unit
- Eil an error factor in the output direction due to the frequency tracking of the first signal generator
- Eol an error factor in the reflection direction due to the frequency tracking of the first signal generator
- Eo2 It may be an error factor in the reflection direction caused by the frequency tracking of the second signal generation unit.
- the error factor deriving unit calculates the absolute value of the ratio between EilEo2 and Ei2Eol based on the measurement result of the characteristics of the connector and the measurement result of the output and the reflection ratio.
- An error factor ratio deriving unit to be derived, and an absolute value of the derived ratio between EilEo2 and Ei2Eol, and a frequency-to-talking error factor deriving unit for deriving Ei2 and Eo2 based on Eil, Eol, Ei2 X Eo2. May be.
- the error factor ratio deriving unit the error factor ratio deriving unit
- Txl (l), Rxl (l), Tx2 (l), Rx2 (l) are derived from the first signal generator.
- Txl (l) As a result of measuring the first signal before being reflected by the first output terminal,
- Rx2 (l) a result of measuring the first signal incident on the second output terminal
- Txl (2), Rxl (2), Tx2 (2), Rx2 (2) is the second signal when the second signal is output from the second signal generator to the first signal generator. Signal measurement results,
- the second signal may be the result of measuring the light incident on the first output terminal.
- the error factor measurement device according to the present invention is such that the measurement results of the characteristics of the connector are Rxl (l) ZTxl (l), Rx2 (l) / Txl (l), Rx2 (2) ZTx2 (2) Rxl (2) Tx2 (2)
- Txl (l), Rxl (l), R X 2 (1) are transmitted from the first signal generation unit to the second The measurement result of the first signal when the first signal is output to the signal generation unit,
- Txl (l) the result of measuring the first signal before being reflected by the first output terminal
- Rx2 (l) a result of measuring the first signal incident on the second output terminal
- the second signal may be a result of measuring the incident signal on the first output terminal.
- the output / reflection ratio measurement unit measures a ratio E21 of Txl (l) and Tx2 (l), and ⁇ 2 (2) and Txl (2) Measure the ratio R12,
- Txl (l), Tx2 (l) are measurement results of the first signal when the first signal is output from the first signal generation unit to the second signal generation unit, and Txl ( l): As a result of measuring the first signal before being reflected by the first output terminal,
- Tx2 (l) The first signal is reflected inside the second signal generator. Is the result of measuring
- the second signal may be the result of measuring the reflection of the second signal inside the first signal generator.
- the connection tool may include one or both of a cable and a switch.
- the output measurement device according to the present invention includes an error factor measurement device according to the present invention, the second signal generation unit, and the second signal output from the second signal generation unit reflected by the second output terminal. And a measurement result correction unit that corrects the measurement result of the second signal based on the measurement result before the measurement and the measurement result of the error factor measurement device.
- the input measurement device according to the present invention is an input measurement device including the error factor measurement device according to the present invention and the second signal generation unit, wherein the second signal generation unit includes the first signal generation unit.
- An input signal measuring unit that measures an input signal input from the two output terminals, and the input measuring device further includes a measurement result of the input signal measuring unit and a measurement result of the error factor measuring device. And a measurement result correcting unit for correcting the measurement result of the input signal measuring unit.
- the error factor measurement method according to the present invention is the same as the error factor according to the present invention.
- An error factor measurement method using a factor measurement device wherein there are a plurality of the second signal generation units, and the second output terminal of one of the second signal generation units is connected to the first output terminal via the connector.
- the error factor measurement method according to the present invention is an error factor measurement method using the error factor measurement device according to the present invention, wherein there are a plurality of the second signal generation units, and there is one second signal.
- a first connection step of connecting the second output terminal of the generation unit to the first output terminal of the first signal generation unit via the connector; and an error factor of the one second signal generation unit The first measurement step of measuring the error factor by the error factor measuring device, and the second signal generation unit measuring the error factor as the first signal generation unit, the other second signal generation unit, A second connection step of connecting via a connector, a second measurement step of measuring an error factor of the other second signal generation unit by the error factor measurement device, and generation of all the second signals. Until the second error is measured And an error factor measurement method in which the second measurement step is repeated.
- the present invention includes: (1) a first signal source that generates a first signal; a first signal generation unit that includes a first output terminal that outputs the first signal; and (2) a second signal that generates a second signal.
- a second signal generation unit having a two-signal source and a second output terminal for outputting the second signal; and (3) a connector for connecting the first output terminal and the second output terminal.
- the first signal in the signal system having And an error factor measurement method for measuring an error factor in the second signal generator based on the measurement result of the second signal, based on the measurement result of the first signal and the measurement result of the second signal.
- a connecting device characteristic measuring step for measuring the characteristics of the connecting device, a measurement result before the first signal is reflected by the first output terminal, and reflection inside the second signal generation unit.
- the product of the output / reflection ratio measurement step, each component of the error factor due to the frequency tracking of the first signal generation unit, and each component of the error factor due to the frequency tracking of the second signal generation unit And record Based on the difference factor recording step, the measurement result of the characteristics of the connector, the measurement result of the output / reflection ratio measurement step, and the recorded content of the error factor recording step, the frequency tracking of the second signal generator is performed.
- the present invention includes: (1) a first signal source that generates a first signal; a first signal generation unit that includes a first output terminal that outputs the first signal; and (2) a first signal that generates a second signal.
- a second signal generation unit having a two-signal source and a second output terminal for outputting the second signal; and (3) a connector for connecting the first output terminal and the second output terminal.
- a program for causing a computer to execute an error factor measurement process for measuring an error factor in the second signal generator based on the measurement results of the first signal and the second signal in a signal system having The error factor measurement processing includes: a connector characteristic measuring step of measuring a characteristic of the connector based on the measurement result of the first signal and the measurement result of the second signal; and the first signal is the first signal Output terminal The ratio of the measurement result before being reflected by the second measurement signal to the measurement result of the light reflected inside the second signal generator, and the measurement result before the second signal is reflected by the second output terminal An output / reflection ratio measurement step for measuring a ratio of the reflection of the first signal generation unit to a measurement result, and components of error factors resulting from frequency tracking of the first signal generation unit; An error factor recording step for recording a product of each component of an error factor due to frequency tracking of the second signal generation unit, a measurement result of the characteristics of the connector, and a measurement result of the output / reflection ratio measurement step And an error factor deriving step for deriving each component
- the present invention includes: (1) a first signal source that generates a first signal; a first signal generation unit that includes a first output terminal that outputs the first signal; and (2) a first signal that generates a second signal.
- a second signal generation unit having a two-signal source and a second output terminal for outputting the second signal; and (3) a connector for connecting the first output terminal and the second output terminal.
- the error factor measurement process is a connection medium that measures the characteristics of the connection device based on the measurement result of the first signal and the measurement result of the second signal.
- Characteristic measurement step, and the first signal The ratio between the measurement result before being reflected by the first output terminal and the measurement result of what is reflected inside the second signal generation unit, and the second signal is reflected by the second output terminal.
- Measurement results before the measurement and the first signal generator Output / reflectance ratio measurement process for measuring the ratio to the measurement result of the shot, each component of error factors due to frequency tracking of the first signal generator, and frequency tracking of the second signal generator Based on the error factor recording step of recording the product of each component of the error factor resulting from the measurement result of the characteristics of the connector, the measurement result of the output / reflection ratio measurement step, and the recorded content of the error factor recording step, An error factor deriving step for deriving each component of an error factor caused by frequency tracking of the second signal generation unit.
- the module for a test apparatus according to the present invention includes the error factor measurement apparatus according to the present invention.
- the test apparatus according to the present invention includes the output measuring apparatus according to the present invention, and the second signal is given to the object to be measured.
- a test apparatus according to the present invention includes the input measurement apparatus according to the present invention, and the input signal is given from a device under test.
- FIG. 1 is a diagram showing a configuration of a signal system according to a first embodiment.
- FIG. 2 is a signal flow graph of the signal system of the first embodiment, and FIG. 2 (a) shows a case where the first signal is output from the first signal generator 1 to the second signal generator 2.
- Fig. 2 (b) shows the second signal output from the second signal generator 2 to the first signal generator 1. It is a signal graph when it is done.
- FIG. 3 is a functional block diagram showing the configuration of the error factor measurement device 40 according to the first embodiment of the present invention.
- Fig. 4 is a signal flow graph for explaining how to obtain Edl, Esl, Eil, Eol.
- Fig. 4 (a) shows the signal flow of the first signal generator 1 when a calibration tool is connected.
- FIG. 4 (b) is a signal flow graph of the first signal generator 1 when a parameter is connected.
- FIG. 5 is a diagram for explaining an example of a measurement method when there are four second signal generators 2.
- FIG. 6 is a diagram for explaining another example of the measurement method when there are four second signal generators 2.
- FIG. 7 is a diagram showing a configuration of the second signal generation unit 2 according to the fourth embodiment.
- FIG. 8 is a diagram showing the configuration of the output measuring apparatus according to the fifth embodiment.
- FIG. 9 is a diagram showing the configuration of the input measuring apparatus according to the sixth embodiment.
- FIG. 10 is a diagram showing a configuration of a signal system according to the seventh embodiment.
- FIG. 11 is a diagram showing a configuration of a test apparatus 110 according to the eighth embodiment.
- FIG. 1 is a diagram showing the configuration of the signal system of the first embodiment.
- the signal system includes a first signal generator 1, a second signal generator 2, and a cable (connector) 30.
- the first signal generator 1 and the second signal generator 2 are connected to the error factor measuring device 40.
- the first signal generation unit 1 includes a first signal source 10 that generates a first signal and a first output terminal 19 that outputs the first signal.
- 1st signal source 1 0 is 1st oscillator 1 2, switch 1 3, bridge 1 4 a, 1 4 b, mixer 1 6 a, 1 6 b, singular signal source 1 7, A / D comparator It has I 8 a and 1 8 b.
- the first oscillator 12 generates a first signal (for example, a high frequency signal).
- the switch 13 is a switch for connecting the bridge 14 a to the first oscillator 12 2 or a terminating resistor.
- the bridge 14 a receives the output (first signal) of the first oscillator 12 and branches it in two directions.
- the mixer 16 a receives one of the outputs of the bridge 14 a and multiplies it with a local signal Lo 1 having a predetermined local frequency.
- Mixer The output of 1 6 a is an analog signal.
- Bridge 14b receives the other of the outputs (first signal) of bridge 14a and outputs it as it is. However, the first signal reflected from the first output terminal 19 is received and given to the mixer 16 b.
- the mixer 16 b multiplies the reflected first signal by the local signal L o 1.
- the output of the mixer 16 b is an analog signal.
- the local signal source 17 outputs the local signal L o 1 and supplies it to the mixers 16 a N 16 b.
- the A / D converter 18 a converts the analog output signal output from the mixer 16 a into a digital signal and outputs it.
- the output of A // D converter 1 8 a is called T X 1.
- the A / D converter 18 b converts the analog signal output from the mixer 16 b into a digital signal and outputs it.
- the output of AZD converter 1 8 b is RX 1.
- the second signal generation unit 2 includes a second signal source 20 that generates a second signal, and a second output terminal 29 that outputs a second signal.
- the second signal source 20 is composed of the second oscillator 2 2, switch 2 3, bridges 24 a and 24 b, mixers 2 6 a and 2 6 b, local signal source 2 7, AZD converters 2 8 a and 2 8 b.
- the second oscillator 2 2 generates a second signal (eg, a high frequency signal)
- the switch 23 is a switch for connecting the bridge 24a to the second oscillator 22 or the terminating resistor.
- switch 2 3 When switch 1 3 connects first oscillator 12 2 to bridge 14 a, switch 2 3 connects bridge 24 a to the terminating resistor. In this case, the first signal is output from the first signal generation unit 1 to the second signal generation unit 2. If switch 1 3 connects bridge 14 a to the terminating resistor, switch 2 3 connects bridge 2 4 a to second oscillator 2 2. In this case, the second signal is output from the second signal generator 2 to the first signal generator 1.
- the bridge 24 a When the bridge 24 a is connected to the second oscillator 22 2 by the switch 23, it receives the output (second signal) of the second oscillator 22 and branches it in two directions.
- the mixer 26 a receives one of the outputs of the bridge 24 a and multiplies it with a local signal L o 2 having a predetermined oral frequency.
- the output of the mixer 2 6 a is an analog signal.
- Bridge 2 4 b receives the other of the outputs (second signal) of bridge 2 4 a and outputs it as it is. However, the second signal received from the second output terminal 29 is received and given to the mixer 26 b.
- the mixer 2 6 multiplies the reflected second signal by the oral signal L o 2.
- the output of mixer 26 b is an analog signal.
- the local signal source 2 7 outputs the local signal L o 2 and supplies it to the mixers 2 6 a and 2 6 b.
- the A / D converter 28a converts the analog signal output from the mixer 26a into a digital signal and outputs it.
- the output of AZD converter 28a is called TX 2.
- the A / D converter 28 b converts the analog signal output from the mixer 26 b into a digital signal and outputs it.
- the cable (connector) 30 connects the first output terminal 19 and the second output terminal 29. The characteristics of cable 30 need not be known. Further, the connection tool is not necessarily a cable (see the second embodiment).
- FIG. 2 is a signal flow graph of the signal system of the first embodiment.
- FIG. 2 (a) is a signal flow graph when the first signal is output from the first signal generation unit 1 to the second signal generation unit 2.
- Txl (l), Rxl (l), Tx2 (l), and Rx2 (l) send the first signal from the first signal generator 1 to the second signal generator 2. This is the measurement result of the first signal when output.
- Txl (l), Rxl (l), Tx2 (l), and Rx2 (l) are the outputs of the A / D converters 18 a, 18 b, 28 a, and 28 b, respectively.
- Txl (l) can be said to be a result of measuring the first signal before being reflected by the first output terminal 19.
- Rxl (l) can be said to be the result of measuring the first signal reflected by the first output terminal 19.
- Tx2 (l) is a result of measuring the first signal reflected from the inside of the second signal generator 2.
- Rx2 (l) can be said to be the result of measuring the incident of the first signal on the second output terminal 29.
- Txl (2), Rxl (2), Tx2 (2), and Rx2 (2) send the second signal from the second signal generator 2 to the first signal generator 1. This is the measurement result of the second signal when output.
- Txl (2), Rxl (2), Tx2 (2), and Rx2 (2) are the outputs of the A / D converters 18 a, 18 b, 28 a, and 28 b respectively.
- Tx2 (2) can be said to be the result of measuring the second signal before being reflected by the second output terminal 29.
- Rx2 (2) can be said to be the result of measuring the second signal reflected by the second output terminal 29.
- Txl (2) can be said to be the result of measuring the second signal reflected from the inside of the first signal generation unit 1.
- Rxl (2) can be said to be the result of measuring the incident of the second signal on the first output terminal 19.
- Edl, Esl, Eil, and Eol are error factors of the first signal generator 1.
- Edl is an error factor due to the directionality of the first signal generator 1.
- Esl is an error factor due to the source matching of the first signal generator 1.
- Eil is an error factor in the output direction (the direction in which the first signal is output) caused by the frequency tracking of the first signal generator 1.
- Eol is an error factor of the reflection direction (the direction in which the first signal is reflected by the first output terminal 19) due to the frequency tracking of the first signal generation unit 1.
- Ed2, Es2, Ei2, and Eo2 are error factors of the second signal generator 2.
- Ed2 is an error factor due to the directionality of the second signal generator 2.
- Es2 is an error factor due to the source matching of the second signal generator 2.
- Ei2 is an error factor in the output direction (the direction in which the second signal is output) caused by the frequency tracking of the second signal generator 2.
- Eo2 is an error factor of the reflection direction (the direction in which the second signal is reflected by the second output terminal 29) due to the frequency tracking of the second signal generation unit 2.
- FIG. 3 is a functional block diagram showing the configuration of the error factor measurement device 40 according to the first embodiment of the present invention.
- Error factor measuring device 40 is a cable measuring unit (connector characteristic measuring unit) 4 2, output / reflection ratio measuring unit 4 4, error factor recording unit 4 5, error factor ratio deriving unit 4 6, frequency tracking error A factor deriving section 4 8 is provided.
- the error factor ratio deriving unit 46 and the frequency tracking error factor deriving unit 48 constitute the error factor deriving unit.
- the cable measurement unit 42 has the first signal measurement results Txl (l), Rxl (l), Rx2 (l) and the second signal measurement results Tx2 (2), Rxl (2), Rx2 (2) Based on the above, measure the characteristics Sll, S21, S22, and S12 of the cable 30.
- the measurement results of Sll, S21, S22, and S12 are described as Slim, S21m, S22m, and Sl2m, respectively.
- Slim, S21m, S22m, and S12m may be described as Sijm (where i and j are 1 or 2).
- the output / reflection ratio measurement unit 4 4 measures the output / reflection ratio R 2 1 between Txl (l) and Tx2 (l), and the output / reflection ratio R12 between Tx2 (2) and Txl (2). Measure.
- the measurement results of the output and reflection ratios R21 and 12 are written as R21m and R12m, respectively.
- R21m and R12m may be written as Rijm (where i and j are 1 or 2).
- FIG. 4 is a signal flow graph for explaining how to obtain Edl, Esl, Eil, and Eol. Connect the three types of calibration tools before connecting the first output terminal 1 9 to the cable 30.
- FIG. 4 (a) is a signal flow graph of the first signal generator 1 when a calibration tool is connected. Referring to Fig. 4 (a), it can be seen that the following equation holds. .
- X is the load factor for the three types of calibration tools.
- the calibration tool is a well-known tool that realizes three states: open, short circuit, and standard load Z0 (see, for example, Patent Document 1).
- the required variables are also three types of variables: Edl, Esl, Eil ⁇ Eol.
- the first output terminal 19 is connected to the power meter (for example, see Patent Document 2).
- FIG. 4 (b) is a signal flow graph of the first signal generator 1 when a parameter is connected. Referring to Fig. 4 (b), it can be seen that the following equation holds.
- P is the result of measuring the signal output from the output terminal (measurement output terminal) 19 a with the power meter 64.
- Esl since Esl has already been acquired and Ep can be measured, Eil can be obtained. Since Eil X Eol has already been acquired, Eol can also be requested.
- the error factor ratio deriving unit 46 derives the absolute value of the ratio between EilEo2 and Ei2Eol based on the measurement results Slim, S21m, S22m, S12m of the cable 30 and the measurement results R21m, R12m of the output / reflection ratio. .
- the error factor ratio deriving unit 46 acquires Slim, S21m, S22m, and S12m from the cable measuring unit 4 2, and H21m and R12m from the output / reflection ratio measuring unit 44.
- the ratio of EilEo2 to Ei2Eol is (EilEo2) Z (Ei2Eol) or (Ei2Eol) / (EilEo2).
- the cable 30 has the property of S21 2 S12. (EilEo2) / (Ei2Eol)
- the error factor ratio deriving unit 4 6 substitutes Slim, S21m, S22m, Sl2m and R21m, Rl2m for the right side of Equation (5-2)
- (Ei2Eol) / (EilEo2) i can be derived.
- the frequency tracking error factor deriving section 48 derives Ei2 and Eo2 based on the absolute value of the derived ratio of EilEo2 and Ei2Eol (for example, Ei2Eol) / (EilEo2) l) and Eil, Eol, Ei2XEo2.
- the derivation principle is
- Ei2 and Eo2 can be derived from Ei2 / Eo2j and Ei2XEo2.
- the frequency tracking error factor deriving unit 48 has an absolute value deriving unit 48a and each component deriving unit 48b.
- Absolute value deriving unit 4 8 a is the absolute value of Ei2! Ei2
- the absolute value deriving unit 4 8 a obtains Ei2Eo2, Eil, Eol from the error factor recording unit 45, and
- Each component deriving unit 4 8 b obtains
- the error factor derivation unit comprised of the error factor ratio deriving unit 46 and the frequency tracking error factor deriving unit 48 is the result of measuring the characteristics of the cable 30.Slim, S21m, S22m, S12m, output / reflection ratio Based on the measurement results R21m, R12m and Eil, Eol, Ei2 X Eo2 (contents recorded in error factor recording section 45), Ei2 and Eo2 are derived. Next, the operation of the first embodiment will be described.
- the first oscillator 12 is connected to the bridge 14 a by the switch 13.
- switch 2 3 connects bridge 2 4 a to the terminating resistor.
- the first oscillator 12 generates a first signal.
- the first signal passes through switch 13 and bridge 14 a, part of it is fed to mixer 16 a and the other is fed to bridge 14 b.
- the mixer 16 a multiplies the local signal L o 1 and the first signal and supplies the result to the A / D converter 18 a.
- a / D converter 1 8 A output is The first signal passing through the bridge 14 b that becomes Txl (l) reaches the first output terminal 19.
- a part of the first signal is reflected by the first output terminal 19, and the other part is emitted from the first output terminal 19.
- the first signal reflected by the first output terminal 19 passes through the bridge 14 b and is given to the mixer 16 b.
- the mixer 16 b multiplies the oral signal L o 1 and the first signal and gives the result to the A / D comparator 18 b.
- the output of AZD comparator 1 8 b becomes Rxld).
- the first signal emitted from the first output terminal 19 is given to the second output terminal 29 through the cable 30.
- the first signal passing through the second output terminal 29 is given to the bridge 24b, a part is given to the mixer 26b, and the other is given to the bridge 24a.
- the mixer 26 b multiplies the local signal L o 2 and the first signal, and supplies the result to the A-node D converter 28 b.
- the output of AZD converter 2 8 b becomes Rx2 (l).
- the first signal passing through bridge 24a passes through switch 23 and is reflected by the terminating resistor.
- the first signal reflected by the terminating resistor passes through the bridge 24a and is given to the mixer 26a.
- the mixer 26 a multiplies the local signal L o 2 and the first signal and supplies the result to the A / D converter 28 a.
- the output of A / D converter 2 8a becomes Tx2 (l).
- Txl (l), Rxl (l), Rx2 (l), and Tx2 (l) are given to the cable measuring unit 42 and the output'reflection ratio measuring unit 44 of the error factor measuring device 40.
- the output of AZD converter 2 8a becomes Tx2 (2).
- the second signal passing through the bridge 24 b reaches the second output terminal 29. A part of the second signal is reflected by the second output terminal 29, and the other part is emitted from the second output terminal 29.
- the second signal reflected by the second output terminal 29 passes through the bridge 24b and is given to the mixer 26b.
- the mixer 26 b multiplies the local signal L o 2 and the second signal, and gives them to the AZD comparator 28 b.
- the output of the AZD converter 28b is 11x2 (2).
- the second signal emitted from the second output terminal 29 passes through the cable 30 and is given to the first output terminal 19.
- the second signal passing through the first output terminal 19 is given to the bridge 14b, part is given to the mixer 16b, and the other is given to the bridge 14a.
- the mixer 16 b multiplies the local signal L o 1 and the second signal and supplies the result to the AZ D converter 18 b.
- AZD converter 1 8 b output is R l (2).
- the second signal that passes through bridge 14a passes through switch 13 and is reflected by the terminating resistor.
- the second signal reflected by the terminating resistor passes through bridge 14 a and is fed to mixer 16 a.
- the mixer 16 a multiplies the local signal L ⁇ 1 and the second signal and supplies the result to the AZD converter 18 a.
- the output of AZD comparator 1 8 a becomes Txl (2).
- Txl (2), 11x1 (2), Tx2 (2), and Rx2 (2) are provided to the cable measurement unit 42 and the output / reflection ratio measurement unit 44 of the error factor measurement device 40.
- the cable measuring unit 42 measures the characteristics Sll and S21 of the cable 30 based on Txl (l), Exl (l), Rx2 (l), and outputs the measurement results Slim and S21m.
- Slim Rxl (l) -no Txl (l), S21m 2 Rx2 (l) ZTxl (l).
- the cable measurement unit 42 measures the characteristics S22 and S12 of the cable 30 based on Tx2 (2), Rxl (2), and 1x2 (2), and outputs the measurement results S22m and Sl2m.
- the output / reflection ratio measuring unit 44 outputs R21m 2 Tx2 (l) ZTxl (l) based on Txl (l) and Tx2 (l).
- the error factor ratio deriving unit 46 receives the Sllm, S21m, S22m, Sl2i from the cable measuring unit 42 and the R2lm, Rl2m from the output / reflection ratio measuring unit 44, I (Ei2Eol) / (EilEo2)
- I I (S12m-SlmlmR12m) / (S21m-S22mR21m) 1.
- the absolute value deriving unit 4 8 a receives Ei2Eo2, Eil, Eol from the error factor recording unit 45, and receives
- Ei2 1
- Each component deriving unit 4 8 b receives
- the error factors Ei2 and Eo2 caused by the frequency tracking of the second signal generation unit 2 can be obtained.
- the measurement results of the characteristics of cable 30 are Ei2 and Eo2 obtained using Slim, S21m, S22m, and S12m, Ei2 and Eo2 are obtained using true characteristics Sll, S21, S22, and S12 of cable 30. is not. Therefore, even if the true characteristics Sll, S21, S22, and S12 of the cable 30 are unknown, the error factors Ei2 and Eo2 can be obtained.
- FIG. 5 is a diagram for explaining an example of a measurement method when there are four second signal generators 2.
- the second output terminal 29a of one second signal generator 2a is connected to the first signal generator 1 via the switch (connector) 32. Connect to the first output terminal 19 (referred to as ⁇ connection process).
- the error factor of one second signal generator 2a is measured by an error factor measuring device 40 (not shown in FIG. 5) (referred to as “measurement process”).
- the measurement method is the same as that in the first embodiment, and a description thereof is omitted. Referring to FIG.
- connection process and the measurement process are performed for the other second signal generation unit 2b.
- the connection process and the measurement process are performed for the other second signal generator 2c.
- the connection process and the measurement process are performed for the other second signal generator 2d. In this way, the connection process and the measurement process are repeated until the error factors Ei2 and Eo2 of all the second signal generation units 2a, 2b, 2c, and 2d are measured. In this case, even if the true characteristics Sll, S21, S22, S12 of the switch (connector) 3 2 are unknown, the error factors Ei2 and Eo2 can be obtained as in the first embodiment. is there.
- Third embodiment Third embodiment
- FIG. 6 is a diagram for explaining another example of the measurement method when there are four second signal generation units 2.
- the second output terminal 29a of one second signal generator 2a is connected to the first output of the first signal generator 1 via the cable 3 Connect to terminal 19 (referred to as “first connection process”). Then, an error factor of one second signal generation unit 2a is measured by an error factor measurement device 40 (not shown in FIG. 6) (referred to as a ⁇ first measurement step). Referring to FIG. 6 (b), the second signal generation unit 2a that has measured the error factor is used as the first signal generation unit, and the other second signal generation unit 2b is connected to the other signal generation unit 2b via the cable 30. (Referred to as “second connection process”).
- the error factor of the other second signal generation unit 2 b is measured by the error factor measurement device 40 (referred to as “second measurement process”).
- Ed2, Es2, Ei2, and Eo2 are known for the second signal generator 2a
- Ed2, Es2, Ei2, and Eo2 are known for the second signal generator 2b. If the second signal generator 2b is replaced with the second signal generator 2 in the first signal generator 1, the error factors Ei2 and Eo2 of the second signal generator 2b are obtained as in the first embodiment. You will understand that you can. Referring to FIG. 6 (c), the second signal generation unit 2b that has measured the error factor is used as the first signal generation unit, and the other signal generation unit 2c is connected to the second channel generation unit 2c. Connect through (referred to as "second connection process").
- the error factor of the other second signal generation unit 2 c is measured by the error factor measurement device 40 (referred to as “second measurement process”).
- Ed2, Es2, Ei2, and Eo2 are known for the second signal generator 2b, and Ed2, Es2, Ei2, and Eo2 are known for the second signal generator 2c. If the second signal generator 2c is replaced with the second signal generator 2 in the first signal generator 1, the first implementation
- the second signal generation unit 2 in the first embodiment further includes a second input signal measurement unit 21 that measures an input signal input from the second output terminal 29.
- FIG. 7 is a diagram showing a configuration of the second signal generation unit 2 according to the fourth embodiment.
- the second signal generator 2 includes the second input signal measuring unit 21, the second oscillator 2 2, the switch 2 3, the bridges 2 4 a and 2 4 b, the mixers 2 6 a and 2 6 b, and the local signal Source 27, A / D converters 2 8a, 2 8b. Except for the second input signal measuring section 21 and switch 23, they are the same as those in the first embodiment, and a description thereof will be omitted.
- the second input signal measuring unit 21 includes a local signal source 21a, a mixer 21b, and an A / D converter 21c.
- the second input signal measuring unit 21 measures the input signal input from the second output terminal 29.
- the local signal source 2 1 a outputs an input signal measuring local signal.
- the mixer 2 1 b multiplies the input signal input from the second output terminal 29 by the input signal measurement local signal.
- the A / D converter 2 1 c converts the multiplication result (analog signal) of the mixer 2 lb into a digital signal.
- Output SA of A / D converter 2 1 c is the measurement result of the input signal.
- the switch 23 is a switch for connecting the bridge 24 a to the second oscillator 22 2 or the second input signal measuring unit 21 (the mixer 21 b).
- FIG. 8 is a diagram showing the configuration of the output measuring apparatus according to the fifth embodiment.
- the output measurement device includes an error factor measurement device 40, a second signal generation unit 2, and a measurement result correction unit 100.
- the error factor measurement device 40 and the second signal generation unit 2 are the same as those in the first embodiment, and a description thereof will be omitted. However, the measurement of the error factors Ei2 and Eo2 of the second signal generation unit 2 by the error factor measurement device 40 has been completed. Further, the second signal generator 2 is disconnected from the cable 30, and the error factor measurement device 40 is disconnected from the second signal generator 2 and the first signal generator 1.
- the measurement result correction unit 100 receives, from the AZD converter 28 a, the result Tx2 measured before the second signal output from the second signal generation unit 2 is reflected by the second output terminal 29.
- the measurement result correction unit 100 further receives Ei2 and Eo2 measured by the error factor measurement device 40, and also receives Es2 and Ed2 from the error factor recording unit 45.
- the measurement result correction unit 100 corrects the measurement result Tx2 of the second signal based on Es2, Ed2, Ei2, and Eo2, and obtains the power ⁇ of the second signal.
- FIG. 9 is a diagram showing the configuration of the input measuring apparatus according to the sixth embodiment.
- the input measurement device includes an error factor measurement device 40, a second signal generation unit 2, and a measurement result correction unit 100.
- the error factor measurement device 40 and the second signal generator 2 are the same as those in the first embodiment, and a description thereof will be omitted. However, the measurement of the error factors Ei2 and ⁇ 2 of the second signal generator 2 by the error factor measuring device 40 has been completed. Further, the second signal generator 2 is disconnected from the cable 30, and the error factor measurement device 40 is disconnected from the second signal generator 2 and the first signal generator 1.
- the measurement result correction unit 100 receives the measurement result SA of the input signal measurement unit 21 from the A / D converter 21c.
- Corrected paper (fine 391)
- the Ei2 and Eo2 measured by the error factor measuring device 40 are received, and Es2 and Ed2 are also received from the error factor recording unit 45.
- the measurement result correcting unit 100 corrects the measurement result SA of the input signal based on Es2, Ed2, Ei2, and Eo2, and obtains the power P of the input signal. Seventh embodiment
- the seventh embodiment shows a measurement example of an error factor when the first signal generation unit 1 and the second signal generation unit 2 are connected by switches SW1 and SW2 having a plurality of terminals.
- FIG. 10 is a diagram showing the configuration of the signal system according to the seventh embodiment.
- the signal system according to the seventh embodiment includes a first signal generation unit 1, a second signal generation unit 2, switches (connectors) SW 1 and SW 2, and cables (connectors) 30.
- the first signal generation unit 1 and the second signal generation unit 2 are the same as those in the first embodiment, and a description thereof is omitted.
- the switches SW1, SW2, and cable 30 constitute the connection tool.
- the switch SW1 connects the first output terminal 19 to any one of the terminals Pll, P12, P13, and P14.
- Switch SW2 connects the second output terminal 29 to any of terminals P21, P22, P23, and P24.
- Cable 30 connects switch SW1 and switch SW2.
- Ei; jl P12 is the error factor when the first signal generator 1 and the switch SW1 (where the first output terminal 19 is connected to the terminal P12) and the first signal generator 1 and Eijl P13 is the error factor when the switch SW1 (however, the first output terminal 1 9 is connected to the terminal P13), and the first signal generator 1 and switch SW1 (however, the first output terminal 1 Eijlp 14 is the error factor when 9 is connected to terminal P14.
- T (Eijl) -iT (Eijlpi 2 ) is assumed to be constant regardless of time.
- T (Eijl) -iT (Eijl P13 ) is assumed to be constant regardless of time.
- T (Eijl) -iT (Eijl P14 ) can be regarded as constant regardless of time.
- T (Eijl) is the T parameter of Eijl and is a matrix.
- Eijlpi 2 , Eijl P 1 3 s Ei] 'lpi 4 can be obtained.
- terminal P11 and terminal P21 are connected by cable 30.
- switch SW1, and switch SW2 to the first
- Ed2, Es2, Ei2, and Eo2 of the second signal generation unit 2 can be obtained. This is the same whether terminal P11 and terminal P22 are connected by cable 30, terminal P11 and terminal P23 are connected, or terminal P11 and terminal P24 are connected.
- Ed2, Es2, Ei2, and Eo2 are written as Ei.
- the error factor of switch SW2 is Qi; j P21 (for terminal P21), Qi 22 (for terminal P22), Qij P23 (terminal: for P23), Qij P24 (for terminal P24), the second signal generator 2 and the switch SW2 (however, the second output terminal 29 is connected to the terminal P21), the error factor is T (Eij2) T (Qij P2 i).
- the second signal generation unit 2 and Suitsuchi SW2 (provided that the second output terminal 2 9 connected to the terminal P22) error factors when the viewed To integrally becomes T (Eij2) T (Qi 22 ).
- the eighth embodiment is an example in which a test apparatus is configured using an output measurement apparatus and an input measurement apparatus.
- FIG. 11 shows the configuration of the test apparatus 1 1 0 according to the eighth embodiment.
- the test apparatus 110 according to the eighth embodiment includes a second signal generation unit 2, a measurement result correction unit 100a, 100b, and an error factor measurement device 40.
- the second signal generation unit 2, the measurement result correction unit 100a, and the error factor measurement device 40 constitute the output measurement device according to the fifth embodiment (see FIG. 8).
- the second signal generation unit 2, the measurement result correction unit 100b, and the error factor measurement device 40 constitute the input measurement device according to the sixth embodiment (see FIG. 9).
- the test device module has an error factor measuring device 40.
- the switch 2 3 When the switch 2 3 connects the second oscillator 2 2 to the bridge 2 4 a, the second signal is given to the device under test (DUT). The power of the second signal is P1.
- the measurement result correction unit 1 00 0a measures the second signal based on Ei2 and Eo2 measured by the error factor measurement device 40 and Es2 and Ed2 recorded in the error factor measurement device 40. Result Tx2 is corrected and the second signal power P1 is obtained.
- the switch 2 3 connects the second input signal measuring section 21 to the bridge 2 4 a, the signal from the object to be measured is given as an input signal to the second output terminal 29 (power: P2) .
- the measurement result correction unit 1 0 0 b is connected to the input signal measurement unit 2 1 Correct the measurement result SA and calculate the power P2 of the input signal.
- the test equipment 1 1 0 tests the device under test based on the power P2 of the second signal and the power P2 of the input signal, but since the test itself in the test equipment (tester) is well known, a detailed description of the test itself Is omitted. Moreover, said embodiment is realizable as follows.
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Abstract
Description
Claims
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DE112008001834T DE112008001834T5 (de) | 2007-07-23 | 2008-07-11 | Gerät, Verfahren, Programm und Speichermedium für Fehlerfaktormessung und Output-Messgerät und Input-Messgerät, die mit dem Gerät für Fehlerfaktormessung ausgestattet sind |
JP2009524468A JP5177904B2 (ja) | 2007-07-23 | 2008-07-11 | 誤差要因測定装置、方法、プログラム、記録媒体および該装置を備えた出力測定装置、入力測定装置 |
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JP2007190341 | 2007-07-23 | ||
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PCT/JP2008/062965 WO2009014073A1 (ja) | 2007-07-23 | 2008-07-11 | 誤差要因測定装置、方法、プログラム、記録媒体および該装置を備えた出力測定装置、入力測定装置 |
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US (1) | US7761253B2 (ja) |
JP (1) | JP5177904B2 (ja) |
KR (1) | KR20100027219A (ja) |
DE (1) | DE112008001834T5 (ja) |
TW (1) | TW200912352A (ja) |
WO (1) | WO2009014073A1 (ja) |
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JP4188396B2 (ja) * | 2006-08-31 | 2008-11-26 | 株式会社アドバンテスト | 誤差要因判定装置、方法、プログラム、記録媒体および該装置を備えた出力補正装置、反射係数測定装置 |
TWI797919B (zh) * | 2021-09-07 | 2023-04-01 | 稜研科技股份有限公司 | 波束成型裝置及波束控制方法 |
EP4145149A1 (en) | 2021-09-07 | 2023-03-08 | TMY Technology Inc. | Broadband measurement system and measurement method for broadband property |
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JPH1138054A (ja) * | 1997-07-18 | 1999-02-12 | Advantest Corp | ネットワーク・アナライザのキャリブレーション方法 |
JPH11352163A (ja) * | 1998-05-18 | 1999-12-24 | Hewlett Packard Co <Hp> | ネットワ―ク・アナライザの校正方法 |
WO2004049564A1 (ja) * | 2002-11-27 | 2004-06-10 | Advantest Corporation | 電力供給装置、方法、プログラム、記録媒体、ネットワークアナライザおよびスペクトラムアナライザ |
JP2005172728A (ja) * | 2003-12-15 | 2005-06-30 | Agilent Technol Inc | ネットワーク・アナライザにおける校正の検証方法、該検証方法を実施するための機能手段を備えるネットワークアナライザ、該検証方法を実施するためのプログラム |
WO2008026711A1 (fr) * | 2006-08-30 | 2008-03-06 | Advantest Corporation | Dispositif de détermination d'éléments, procédé, programme, support d'enregistrement et dispositif de mesure |
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US5332974A (en) * | 1990-05-01 | 1994-07-26 | Hewlett-Packard Company | Network analyzer performance verification |
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JP4462979B2 (ja) * | 2004-03-26 | 2010-05-12 | 株式会社アドバンテスト | ネットワークアナライザ、伝送トラッキング測定方法、ネットワーク解析方法、プログラムおよび記録媒体 |
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2007
- 2007-09-26 US US11/861,453 patent/US7761253B2/en not_active Expired - Fee Related
-
2008
- 2008-07-11 JP JP2009524468A patent/JP5177904B2/ja not_active Expired - Fee Related
- 2008-07-11 DE DE112008001834T patent/DE112008001834T5/de not_active Withdrawn
- 2008-07-11 TW TW097126342A patent/TW200912352A/zh not_active IP Right Cessation
- 2008-07-11 KR KR1020107000868A patent/KR20100027219A/ko not_active Application Discontinuation
- 2008-07-11 WO PCT/JP2008/062965 patent/WO2009014073A1/ja active Application Filing
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JPWO2009014073A1 (ja) | 2010-09-30 |
JP5177904B2 (ja) | 2013-04-10 |
US7761253B2 (en) | 2010-07-20 |
US20090030633A1 (en) | 2009-01-29 |
TWI370908B (ja) | 2012-08-21 |
TW200912352A (en) | 2009-03-16 |
KR20100027219A (ko) | 2010-03-10 |
DE112008001834T5 (de) | 2010-06-17 |
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