WO2009014072A1 - 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補正装置、反射係数測定装置 - 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補正装置、反射係数測定装置 Download PDFInfo
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- WO2009014072A1 WO2009014072A1 PCT/JP2008/062964 JP2008062964W WO2009014072A1 WO 2009014072 A1 WO2009014072 A1 WO 2009014072A1 JP 2008062964 W JP2008062964 W JP 2008062964W WO 2009014072 A1 WO2009014072 A1 WO 2009014072A1
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- error factor
- derived
- direction component
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- signal source
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2839—Fault-finding or characterising using signal generators, power supplies or circuit analysers
- G01R31/2841—Signal generators
-
- 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
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Definitions
- Error factor measuring device method, program, recording medium, output correcting device including the device, reflection coefficient measuring device
- the present invention relates to calibration of a switch branch signal source that combines a signal source that generates a signal and a switch that outputs the generated signal to any of a plurality of ports.
- a circuit parameter (for example, S parameter) of a device under test (DUT) has been measured (for example, Patent Document 1 (Japanese Patent Laid-Open Publication No. H11-1138). 5 No. 4)).
- 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.
- This measurement system error is, for example, E d: Bridge Error due to directionality, E r: error due to frequency tracking, E s: error due to source matching.
- the error can be corrected as described in Patent Document 1.
- Such correction is called calibration.
- Outline the carrier break. Connect the calibration kit to the signal source and realize three types of states: open (open), short (short-circuit), and load (standard load Z0).
- the signal reflected from the calibration kit at this time is acquired by a probe, and three types of s-parameters corresponding to the three types of states are obtained. Find three types of variables E d, E r, and E s from the three types of S-parameters and perform correction.
- 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.
- the switch branch signal source is a combination of a signal source that generates a signal and a switch that outputs the generated signal to one of a plurality of ports.
- An error factor measurement apparatus includes an error factor for measuring an error factor in a switch branch signal source having a signal source that generates a signal and a switch that outputs the signal from any one of a plurality of output terminals.
- a measuring device which is an output direction component of an error factor due to frequency tracking in the switch branch signal source (“reference”) when a predetermined output terminal that is one of the plurality of output terminals is connected to the signal source.
- a reference error factor component recording unit that records a component in the output direction and a component in the input direction (referred to as a “reference input direction component”), and each of the plurality of output terminals other than the predetermined output terminal as the signal source.
- the derived output direction component and the derived input direction component are derived.
- an error factor measurement device for measuring an error factor in a switch branch signal source having a signal source for generating a signal and a switch for outputting the signal from any of a plurality of output terminals.
- the reference error factor component recording unit is configured to output an error factor in the output direction due to frequency tracking in the switch branch signal source when a predetermined output terminal that is one of the plurality of output terminals is connected to the signal source. Record the minute (referred to as “reference output direction component”) and the input direction component (referred to as “reference input direction component”).
- the derived error factor product recording unit is a component in an output direction of an error factor caused by frequency tracking in the switch branch signal source when each of the plurality of output terminals other than the predetermined output terminal is connected to the signal source.
- the error factor ratio deriving unit derives an error factor ratio that is a ratio of the reference output direction component and the reference input direction component based on the recording content of the reference error factor component recording unit.
- the frequency tracking error factor deriving unit based on the error factor product recorded in the derived error factor product recording unit and the error factor ratio derived by the error factor ratio deriving unit, the derived output direction component and the A derived input direction component is derived.
- the frequency tracking error factor deriving unit is configured to determine whether the error factor ratio is the derived output direction component.
- the derived output direction component and the derived input direction component are derived as being equal to the ratio of the minute and the derived input direction component.
- the error factor measurement device according to the present invention is a component caused by the directionality of the switch branch signal source of the error factor in the switch branch signal source when each of the plurality of output terminals is connected to the signal source.
- the error factor measurement device according to the present invention is a result of measuring the reference output direction component and the reference input direction component recorded in the reference error factor component recording unit, which are output from the predetermined output terminal.
- the calibration tool may realize three types of states: open, short circuit and standard load.
- the error factor measurement device the error factor product recorded in the derived error factor product recording unit is connected to each of the plurality of output terminals other than the predetermined output terminal. In this state, the calibration tool is released based on the result of measuring the signal before the error factor occurs and the result of measuring the reflected signal. It may be possible to realize three types of standard load conditions.
- An output correction device comprises: the error factor measurement device according to the present invention; and a signal power adjustment unit that adjusts the power of the signal based on the error factor measured by the error factor measurement device.
- the reflection coefficient measuring apparatus includes: the error factor measuring apparatus according to the present invention; and a measured object connected to any one of the plurality of output terminals, before the error factor is generated. Reflection coefficient measuring means for measuring the reflection coefficient of the object to be measured based on the result of measuring the signal, the result of measuring the reflected signal, and the error factor measured by the error factor measuring device It is comprised so that.
- the present invention is an error factor measurement method for measuring an error factor in a switch branch signal source having a signal source for generating a signal and a switch for outputting the signal from any of a plurality of output terminals.
- a reference error factor component recording step (referred to as “reference input direction component”), and when each of the plurality of output terminals other than the predetermined output terminal is connected to the signal source.
- the component of the output direction of the error factor due to frequency tracking in the switch branch signal source (referred to as “derived output direction component”) and the component of the input direction
- a derived error factor product recording step for recording an error factor product that is a product of the minutes (referred to as “derived input direction component”), and based on the recorded contents of the reference error factor component recording step, the reference output direction component and the reference Error factor ratio to derive the error factor ratio that is the ratio with the input direction component
- the derived output direction component and the derived input direction component based on the error factor product recorded by the derivation step, the error factor product recorded by the derivation error factor product recording step, and the error factor ratio derived by the error factor ratio derivation step
- An error factor measurement method for deriving the derived output direction component and the derived input direction component executes, in a computer, an error factor measurement process for measuring an error factor in a switch branch signal source having a signal source for generating a signal and a switch for outputting the signal from any of a plurality of output terminals.
- the error factor measurement process is caused by frequency tracking in the switch branch signal source when a predetermined output terminal which is one of the plurality of output terminals is connected to the signal source.
- a reference error factor component recording step for recording an output direction component (referred to as a “reference output direction component”) and an input direction component (referred to as a “reference input direction component”), and other than the predetermined output terminal An error requirement due to frequency tracking in the switch branch signal source when each of the plurality of output terminals is connected to the signal source.
- a derived error factor product recording step for recording an error factor product that is a product of an output direction component (referred to as “derived output direction component”) and an input direction component (referred to as “derived input direction component”);
- An error factor ratio deriving step for deriving an error factor ratio, which is a ratio of the reference output direction component and the reference input direction component, based on the recorded contents of the quasi-error factor component recording step, and recording by the derived error factor product recording step And the error factor product derived by the error factor ratio deriving step.
- a frequency tracking error factor deriving step for deriving the derived output direction component and the derived input direction component based on a ratio, and the frequency tracking error factor deriving step includes the error factor ratio being the derived output.
- the present invention executes, in a computer, an error factor measurement process for measuring an error factor in a switch branch signal source having a signal source for generating a signal and a switch for outputting the signal from any of a plurality of output terminals.
- a computer-readable recording medium storing a program for causing the error factor measurement processing to be performed when the predetermined output terminal, which is one of the plurality of output terminals, is connected to the signal source.
- a reference error factor component recording unit that records the component in the output direction (referred to as “reference output direction component”) and the component in the input direction (referred to as “reference input direction component”) due to frequency tracking in the switch branch signal source. And the switch when each of the plurality of output terminals other than the predetermined output terminal is connected to the signal source.
- the error factor product which is the product of the component in the output direction (referred to as the “derived output direction component”) and the component in the input direction (referred to as the “derived input direction component”) due to frequency tracking in the multi-signal source Derived error factor product recording step for recording and an error factor ratio derivation for deriving an error factor ratio that is a ratio of the reference output direction component and the reference input direction component based on the recorded contents of the reference error factor component recording step A derived output direction component and a derived input direction component based on the error factor product recorded by the step, the derived error factor product recording step, and the error factor ratio derived by the error factor ratio deriving step.
- the module for a test apparatus according to the present invention includes the error factor measurement apparatus according to the present invention.
- a test apparatus according to the present invention includes an output correction apparatus according to the present invention, and is configured such that the signal is supplied to a device under test.
- a test apparatus according to the present invention includes a reflection coefficient measurement apparatus according to the present invention, and is configured to test an object to be measured.
- FIG. 1 is a diagram showing a configuration of a switch branch signal source 1 °.
- FIG. 2 is a signal flow graph of the switch branch signal source 10.
- FIG. 3 is a diagram showing the configuration of the switch branch signal source 10 when it is assumed that the signal source 100 has a terminal 15.
- FIG. 4 is a signal reflow graph of the switch branch signal source 10 when the terminal 15 is assumed.
- FIG. 5 is a functional block diagram showing the configuration of the error factor measurement device 20 according to the embodiment of the present invention.
- Fig. 6 shows the calibration tool 6 2 to the output terminal 1 9 a and the mixers 1 6 a, 1 6 It is a figure which shows the state which connected b to terminal 2 1 a, 2 1 b.
- FIG. 7 is a signal flow graph showing the error factor measurement device 20 in the state shown in FIG.
- FIG. 8 is a diagram showing a state in which the monometer 64 is connected to the output terminal 19 a and the mixer 16 a is connected to the terminal 21 a.
- FIG. 9 is a signal flow graph showing the error factor measurement device 20 in the state shown in FIG.
- FIG. 10 is a diagram showing a state in which the calibration tool 6 2 is connected to the output terminal 19 b and the mixers 16 a and 16 b are connected to the terminals 2 1 a and 2 1.
- FIG. 11 is a diagram showing an example of the configuration of the output correction device 1 when the error factor measurement device 20 is used for the output correction device 1.
- FIG. 12 is a diagram showing an example of the configuration of the reflection coefficient measurement device 2 when the error factor measurement device 20 is used as the reflection coefficient measurement device 2. '
- FIG. 1 is a diagram showing the configuration of the switch branch signal source 10.
- the switch branch signal source 10 has a signal source 100, a switch 18, and output terminals 19a, 19b, 19c, 19d.
- the signal source 1 0 0 is for generating a signal.
- the signal source 100 has a signal generator 12, an amplifier 13, bridges 14 a and 14 b, and mixers 16 a and 16 b.
- the signal generator 1 2 generates a signal (for example, a high frequency signal).
- the amplifier 13 amplifies the signal generated by the signal generation unit 12.
- the bridge 14 a receives the output of the amplifier 13 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 having a predetermined local frequency. However, local signals are not shown. It can be said that the output of the mixer 16 a measured the signal before the error source in the signal source 1 0 0 occurred.
- Bridge 14b receives the other output of bridge 14a and outputs it as it is. However, the signal reflected from the output side (referred to as “reflected signal”) is received and given to mixer 16 b.
- the mixer 1 6 b multiplies the reflected signal and the local signal. However, local signals are not shown. It can be said that the output of the mixer 16 b is the result of measuring the reflected signal.
- the switch 18 is connected to the signal source 100 and outputs a signal from any of the output terminals 19a, 19b, 19c, 19d. Any one of the output terminals 1 9 a, 1 9 b, 1 9 c, and 19 d is connected to the signal source 1 0 0 by the switch 1 8. Then, a signal is output from an output terminal connected to the signal source 100.
- the S parameter of the output of the output terminal 1 9 a is a 1
- the S parameter of the output reflected to the output terminal 1 9 a is b 1 To do.
- FIG. 2 is a signal flow graph of the switch branch signal source 10.
- FIG. 2 (a) is a signal flow graph when the signal source 100 is connected to the output terminal 19a.
- FIG. 2 (b) is a signal flow graph when the signal source 100 is connected to the output terminal 19b.
- Fig. 2 (c) is a signal flow graph when signal source 1 0 0 is connected to output terminal 1 9 c.
- FIG. 2 (d) is a signal flow graph when the signal source 100 is connected to the output terminal 19d.
- the output of the signal generator 12 is denoted as SG
- the output of the mixer 16a is denoted as Rl
- the output of the mixer 16b is denoted as R2.
- R 1-S GX L where L (S parameter) is an error factor caused by amplifier 13.
- Error factors E lib, E 1 2 b, E 2 1 b, and E 2 2 b are called second port error factors.
- error factors E 1 1 c, E 1 2 c, E 2 1 c, E 2 2 c It can be seen that (S parameter) occurs.
- Error factors E 1 1 c, E 1 2 c, E 2 1 c, E 2 2 c are labeled as third port error factors. Referring to Fig.
- FIG. 3 is a diagram showing the configuration of the switch branch signal source 10 when it is assumed that the signal source 100 has a terminal 15.
- Terminal 15 is a terminal for connecting signal source 1 0 0 to switch 1 8.
- the output of terminal 15 is a5, and the output of terminal 15 is reflected by terminal 15 is b5.
- FIG. 4 is a signal flow graph of the switch branch signal source 10 when the terminal 15 is assumed.
- FIG. 4 (a) is a signal flow graph when the signal source 100 is connected to the output terminal 19a.
- FIG. 4 (b) is a signal flow graph when the signal source 100 is connected to the output terminal 19b.
- FIG. 4 (c) is a signal flow graph when the signal source 100 is connected to the output terminal 19c.
- FIG. 4 (d) is a signal flow graph when the signal source 100 is connected to the output terminal 19d.
- Error factors P 11, P 12, P 21, and P 22 are error factors in the signal source 100 and are called signal source error factors.
- the signal source error factors Pll, P12, P21, and P22 are S parameters having a constant value even if the temperature and time change. Referring to Fig. 4 (a), when signal source 1 0 0 is connected to output terminal 1 9 a, error factors Q 1 1 a, Q 1 2 a, Q 2 1 a, Q 2 2 a It can be seen that (S parameter) occurs. Error factors Q 1 1 a, Q 1 2 a, Q 2 1 a, Q 2 2 a are the error factors of switch 18 when signal source 1 0 0 is connected to output terminal 1 9 a. One switch partial error factor. Referring to Fig.
- Error factors Q 1 1 c, Q 1 2 c, Q 2 1 c, Q 2 2 c are error factors for switch 1 8 when signal source 1 0 0 is connected to output terminal 1 9 c This is called the third switch partial error factor.
- error factors Q lld, Q 1 2 d, Q 2 1 d, Q 2 2 d S It can be seen that (parameter) is generated.
- Error factors Q 1 1 d, Q 1 2 d, Q 2 1 d, Q 2 2 d are the error factors of switch 18 when signal source 1 0 0 is connected to output terminal 1 9 d. This is called the four switch partial error factor.
- the signal source error factors P11, P12, P21, P22, and the first switch partial error factor Q11a , Q 1 2 a, Q 2 1 a, and Q 2 2 a are combined into the first port error factors E lla, E 1 2 a, E 2 1 a, E 2 2 a .
- the first port error factor is expressed by the following equations (1) to (4). Is represented.
- E lla P ll + P 2 1 P 1 2 Q lla / (l ⁇ P 22 Q lla) (1)
- E 2 1 a P 2 1 Q 2 1 a / (l— P 2 2 Q lla) (2 )
- signal source error factors P 11, P 12, P 21, P 22 2 and second switch partial error factor Q 1 1 b, Q 1 2 b, Q 2 1 b, Q 2 2 b are combined into 2nd port error factors E llb, E 1 2 b, E 2 1 b, E 2 2 b
- the second port error factor can also be expressed by the above equations (1) to (4) if the subscript a is changed to b. Referring to Fig. 2 (c) and Fig.
- FIG. 5 is a functional block diagram showing the configuration of the error factor measurement device 20 according to the embodiment of the present invention.
- Error factor measuring device 20 has terminals 2 1 a, 2 1 b, 2 1 c, port error factor acquisition unit 2 2, port error factor recording unit 2 3, reference error factor component recording unit 24, derived error factor product A recording unit 25, an error factor ratio deriving unit 26, and a frequency tracking error factor deriving unit 28 are provided.
- Terminal 2 1 a is a terminal connected to mixer 16 a of switch branch signal source 10.
- the terminal 2 1 b is a terminal connected to the mixer 16 b of the switch branch signal source 10.
- Terminal 21c is a terminal that receives the measurement result of a power meter (details will be described later) connected to output terminal 19a of switch branch signal source 10a.
- the port error factor acquisition unit 2 2 is connected to terminals other than the output terminal (predetermined output terminal) 19a and the predetermined output terminal of the switch branch signal source 10 via terminals 2 1a, 2 1b, 2 1c. Receives signal measurement results when signals are output from output terminals 1 9 b, 1 9 c, 1 9 d. With reference to FIG. 6, FIG. 8, and FIG. 10, the outline of the measurement results received by the terminals 2 1 a, 2 1 b 2 1 c will be described. Referring to FIG.
- terminals 2 1 a and 2 1 b are connected to the signal ( Receive the measurement results of the reflected signal (the signal reflected by the calibration tool 62) before the first port error factor Eija occurs). Furthermore, the port error factor acquisition unit 2 2 acquires E 1 la and E 2 2 a based on the measurement results obtained through the terminals 2 1 a and 2 1 b in the state shown in FIG. The error factor recording section 2 3 is recorded. E 1 1 a and E 2 2 a are error factor components of the switch branch signal source 10 when the predetermined output terminal 19 a is connected to the signal source 100.
- E 1 1 a is a component resulting from the directionality of the switch branch signal source 1 0.
- E 2 2 a is a component resulting from source matching of the switch branch signal source 10.
- the terminals 21a and 21c are respectively connected to the signal (first port error factor Eija is Receive the measurement result of the signal (output from the specified output terminal 19 a).
- the port error factor acquisition unit 2 2 acquires E 1 2 a and E 2 la based on the measurement result obtained through the terminals 2 1 a and 2 1 c in the state shown in FIG. Record in the reference error factor component recording unit 24.
- E 1 2 a and E 2 1 a are error factor components of the switch branch signal source 10 when the predetermined output terminal 19 a is connected to the signal source 100.
- E 2 1 a is the error due to frequency tracking in the switch branch signal source 10 This is the factor component in the output direction (referred to as “reference output component”).
- E 1 2 a is an input direction component (referred to as “reference input direction component”) of an error factor caused by frequency tracking in the switch branch signal source 10. Referring to Fig.
- the terminals 2 1 a and 2 1 b Each receives the measurement results of the signal (before the first port error factor Eija occurs) and the reflected signal (the signal reflected by the calibration tool 62).
- the measurement result is similarly received even when the calibration tool 6 2 is connected to the output terminal 19 c other than the predetermined output terminal.
- the measurement result is similarly received even when the calibration tool 6 2 is connected to the output terminal 19 d other than the predetermined output terminal.
- the port error factor acquisition unit 2 2 is based on the measurement results obtained via the terminals 2 1 a and 2 1 b in the state shown in Fig.
- E 1 1 b, E 2 2 b, E 1 2 b XE 2 1 b is acquired, E llb and E 2 2 b are recorded in the port error factor recording unit 23, and E 1 2 b XE 2 1 b is recorded in the derived error factor product recording unit 25 .
- E llb, E 2 2 b, E 1 2 b, and E 2 1 b are error factor components of the switch branch signal source 10 when the output terminal 19 is connected to the signal source 10 0.
- E llb is a component caused by the directionality of the switch branch signal source 10.
- E 2 2 b is a component resulting from source matching of the switch branch signal source 10.
- E 1 2 b is a component in the input direction (referred to as “derived input direction component”) of an error factor resulting from frequency tracking in the switch branch signal source 10.
- E 2 1 b is due to frequency tracking in switch branch signal source 10 This is the component in the output direction of the error factor (referred to as the “derived output direction component”).
- the port error factor acquisition unit 2 2 uses the measurement results obtained via the terminals 2 1 a and 2 1 b with the calibration tool 62 connected to the output terminals 19 c other than the predetermined output terminals.
- E llc, E 2 2 c, E 1 2 c XE 2 1 c are obtained, and E llc, E 2 2 c are recorded in the port error factor recording unit 2 3, and E 1 2 c XE 2 1 c is recorded. Record in the derived error factor product recording section 25.
- Ellc, E 2 2 c, E 1 2 c, and E 2 1 c are error factor components of the switch branch signal source 10 when the output terminal 19 c is connected to the signal source 10 0.
- E 1 1 c is a component due to the directionality of the switch branch signal source 10.
- E 2 2 c is a component resulting from source matching of the switch branch signal source 10.
- E 1 2 c is a component in the input direction of an error factor caused by frequency tracking in the switch branch signal source 10 (referred to as “derived input direction component”).
- E 2 1 c is an output direction component (referred to as “derived output direction component”) of an error factor caused by frequency tracking in the switch branch signal source 10.
- the port error factor acquisition unit 22 receives the measurement result obtained through the terminals 2 1 a and 2 1 b in a state where the calibration tool 62 is connected to the output terminal 19 d other than the predetermined output terminal.
- E lld, E 2 2 d, E 1 2 d XE 2 I d are obtained, and E lld, E 2 2 d are recorded in the port error factor recording unit 2 3, and E 1 2 d XE 2 1 d is recorded.
- E lld, E 2 2 d, E 1 2 d, E 2 1 d are error factor components of the switch branch signal source 10 when the output terminal 19 d is connected to the signal source 10 0.
- E lld is a component due to the directionality of the switch branch signal source 10.
- E 2 2 d is the source of switch branch signal source 1 0 It is a component resulting from matching.
- E 12 d is a component in the input direction of an error factor caused by frequency tracking in the switch branch signal source 10 (referred to as “derived input direction component”).
- E 2 1 d is an output direction component (referred to as “derived output direction component”) of an error factor caused by frequency tracking in the switch branch signal source 10.
- the port error factor recording unit 2 3 is an error factor of the switch branch signal source 10 when each of the output terminals 19a, 19b, 19c, 19d is connected to the signal source 100.
- Component E 1 1 a due to switch branch signal source 1 0, E llb, E llc, E lld and component E 2 2 a due to source matching of switch branch signal source 10 Record E 2 2 b, E 2 2 c, and E 2 2 d.
- the reference error factor component recording unit 24 records the reference output direction component E 2 1 a and the reference input direction component E 1 2 a. Further, the reference error factor component recording unit 24 writes E 2 1 a and E 1 2 a into the port error factor recording unit 23.
- the derived error factor product recording unit 25 records E 1 2 b XE 2 1 b, E 1 2 c XE 2 1 c, and E 1 2 d XE 2 1 d.
- E 1 2 b, E 1 2 c, and E l 2 d are derived input direction components
- E 2 1 b, E 2 1 c, and E 2 1 d are derived output direction components. Therefore, the derived error factor product recording unit 25 records the product of the derived input direction component and the derived output direction component (referred to as “error factor product”).
- the error factor ratio deriving unit 26 is the recorded content of the standard error factor component recording unit 24.
- the error factor ratio which is the ratio of the reference output direction component E 2 1 a and the reference input direction component E 1 2 a is derived.
- the error factor ratio is E 2 la E 1 2 a.
- the frequency tracking error factor deriving unit 2 8 includes the error factor product recorded in the derived error factor product recording unit 25 and the error factor ratio E 2 1 a / E 1 2 derived by the error factor ratio deriving unit 26. Based on a, derived output direction components E 2 1 b, E 2 1 c, E 2 1 d and derived input direction components E 1 2 b, E 1 2 c, E 1 2 d are derived.
- the output direction component E 2 1 b and the derived input direction component E 1 2 b are derived.
- E 1 2 b XE 2 1 b A
- Directional components E 2 1 c, E 2 1 d, derived input direction components E 1 2 c, E l 2 d can be derived in the same way, and derived derived output direction components E 2 1 b, E 2 lc, E 2 1 d,
- the derived input direction components E 1 2 b, E 1 2 c, and E 1 2 d are recorded in the port error factor recording unit 23.
- the port error factor recording unit 23 records the first port error factor Eija, the second port error factor Eijb, the third port error factor Eijc, and the fourth port error factor Eiid.
- Source 1 0 mixer 1 6 b error required Figure 6 shows the connection of calibration tool 6 2 to output terminal 1 9 a, mixers 1 6 a and 1 6 b to terminals 2 1 a and 2 1 b It is a figure which shows the state which carried out.
- FIG. 6 the components other than the terminals 2 1 a, 2 1 b, 2 1 c of the error factor measurement device 20, the port error factor acquisition unit 2 2, and the port error factor recording unit 23 are not shown.
- FIG. 7 is a signal flow graph showing the error factor measurement device 20 in the state shown in FIG.
- R 1 is the measurement result of the signal before the first port error factor Eija occurs.
- R 2 is the measurement result of the reflected signal.
- the reflected signal is the signal (b 1) of the signal (a 1) output from the output terminal 19 a reflected by the calibration tool 62.
- the signal (b 1) reflected by the calibration tool 6 2 is applied to the bridge 14 b through the force S and the switch 18.
- the reflected signal given to bridge 14b is fed to mixer 16b and multiplied with the local signal.
- the output of mixer 1 6 b is R 2.
- L l
- the following equation (5) holds.
- R 2 / R 1 E 1 1 a + (E 2 1 aE 1 2 aX) / (1-E 2 2 aX)
- X is the load factor of the calibration tool 62.
- the calibration tool 62 is a well-known one that realizes three states of open, short circuit, and standard load Z0 (see, for example, Patent Document 1).
- the required variables are also three types of variables: E 1 1 a, E 2 2 a, E 1 2 a XE 2 1 a.
- the port error factor acquisition unit 22 acquires Ella, E 2 2 a, and E 1 2 a XE 2 1 a.
- the acquired Ella and E 2 2 a are recorded in the point error factor recording unit 23.
- the port error factor acquisition unit 2 2 is a signal in a state in which a signal is output from the output terminal (measurement output terminal) 1 9 a while the calibration tool 6 2 is connected to the output terminal 19 a.
- R 1 Signal measurement result before the first port error factor Ei] 'a occurs
- R 2 Reflection signal measurement result
- the error factors E lla, E 2 2 a, E 1 2 a XE 2 1 a for the predetermined output terminal 1 9 a of the branch signal source 10 are acquired.
- FIG. 8 is a diagram showing a state in which the power meter 64 is connected to the output terminal 19a and the mixer 16a is connected to the terminal 21a.
- the components other than the terminals 2 1 a, 2 1, 2 1 c of the error factor measurement device 20, the port error factor acquisition unit 2 2, and the reference error factor component recording unit 24 are not shown.
- the first port error factor acquisition unit 2 2 measures the signal output from the predetermined output terminal 19 a based on the result P, and the reference output direction component E 2 1 a and the reference input direction component E 1 2 It can be said that a is derived. Moreover, the first port error factor acquisition unit 2 2 obtains the measurement result of the signal with the calibration tool 6 2 connected to the predetermined output terminal 19 a (R 1: the signal before the first port error factor Eija occurs) Measurement result, R 2: Measurement result of reflected signal) E 2 2 a, E 1 2 a derived based on XE 2 1 a, reference output direction component E 2 1 a, reference input direction component E 1 2 a It can be said that In addition, the calibration tool 6 2 is connected to the output terminal 19 b of the switch branch signal source 10, the mixer 16 6 a of the switch branch signal source 10 is connected to the terminal 2 1 a of the error factor measuring device 2 0, and the switch branch signal source 1 Connect the mixer 1 6 b of 0 to the terminal 2 1
- FIG. 10 is a diagram showing a state in which the calibration tool 6 2 is connected to the output terminal 19 b and the mixers 16 a and 16 are connected to the terminals 2 1 & and 2 1 b.
- terminals 2 1 a, 2 1 b, 2 1 c of error factor measurement device 20, port error factor acquisition unit 2 2, port error factor recording unit 2 3, derived error factor product The parts other than the recording unit 25 are not shown.
- An error factor measurement device 20 in the state shown in FIG. 10 represented by a signal flow graph is the same as FIG. 7, and is not shown. Referring to Fig. 10, the following equation (7) is established.
- R 2 / R 1 E 1 1 b + (E 2 1 bE 1 2 bX) / (1-E 22 bX)
- X is the load factor of the calibration tool 62.
- the calibration tool 62 is a well-known one that realizes three states of open, short circuit, and standard load Z0 (see, for example, Patent Document 1).
- the required variables are also three types of variables: E li, E 2 2 b, E 1 2 b XE 2 1 b.
- the port error factor acquisition unit 22 acquires E llb, E 2 2 b, and E 1 2 b XE 2 1 b.
- the acquired E lib and E 2 2 b are recorded in the port error factor recording unit 23.
- the acquired E 1 2 b XE 2 1 b is recorded in the derived error factor product recording unit 25.
- the port error factor acquisition unit 2 2 is connected to the output terminal 1 9 b for calibration.
- Signal measurement result when signal is output from output terminal 19 b with component 62 connected (R 1: Measurement of signal before second port error factor Ei] 'b occurs Result
- R 2 reflected signal measurement result) via terminal 2 1 a and terminal 2 lb, and based on this measurement result, error factor E 1 for output terminal 1 9 b of switch branch signal source 1 0 1 b, E 2 2 b, E 1 2 b XE 2 1 b (Error factor product) is derived.
- the port error factor acquisition unit 2 2 acquires Ellc, E 2 2 c, and E 1 2 c XE 2 1 c as described above.
- the acquired E 1 1 c and E 2 2 c are recorded in the point error factor recording unit 23.
- the acquired E 1 2 c XE 2 1 c is recorded in the derived error factor product recording unit 25. That is, the port error factor acquisition unit 2 2 has a signal measurement result (R 1) in a state where a signal is output from the output terminal 19 c with the calibration tool 62 connected to the output terminal 19 c.
- the port error factor acquisition unit 2 2 has a signal measurement result (R 1) in a state where a signal is output from the output terminal 19 d while the calibration tool 62 is connected to the output terminal 19 d.
- R 1 The measurement result of the signal before the fourth port error factor Ei] 'd occurs
- R 2 The reflection signal measurement result
- E lld, E 2 2 d, E 1 2 d XE 2 1 d error factor product
- the error factor ratio deriving unit 26 derives the error factor ratio E 2 1 a / E 1 2 a based on the recorded contents of the reference error factor component recording unit 24.
- the port error factor recording section 23 records the first port error factor Eija, the second port error factor Ei] 'b, the third port error factor Ei; jc, and the fourth port error factor Eijd. Become.
- derived output direction components E 2 1 b, E 2 1 c, E 2 1 d, and derived input direction components E 1 2 b, E 1 2 c, E 1 2 d are derived. Therefore, it is not necessary to connect the power meter 64 to the output terminals 1 9 b, 19 c, 19 d.
- FIG. 11 is a diagram illustrating an example of the configuration of the output correction device 1 when the error factor measurement device 20 is used as the output correction device 1. Assume that an attempt is made to output a signal from output terminal 19 d of switch branch signal source 10. Suppose further that the power of this signal is set to the target value. Here, it is necessary to adjust the gain of the amplifier 13 in consideration of the influence of the fourth port error factor Eijd.
- the output correction device 1 includes an error factor measurement device 20 and a signal power adjustment unit 30.
- the details of the error factor measuring device 20 are as described above, but the fourth port error factor Ei] 'd recorded in the port error factor recording unit 23 is given to the signal power adjustment unit 30.
- the signal power adjustment unit 30 adjusts the signal power based on the fourth port error factor Eijd measured by the error factor measurement device 20. For example, the signal power adjustment unit 30 adjusts the signal power by adjusting the gain of the amplifier 13. With this adjustment, the power of the signal output from the output terminal 19 d can be adjusted to the target value.
- the signal power adjustment of the first port error factor Eija from the port error factor recording unit 23 of the error factor measurement device 20 is performed. This may be given to part 30.
- the signal power adjustment unit 30 adjusts the power of the signal based on the first port error factor Eija measured by the error factor measurement device 20.
- adjust the signal power of the second port error factor Eijb from the port error factor recording unit 2 3 of the error factor measurement device 20 is adjusted. This may be given to part 30.
- the signal power adjustment unit 30 adjusts the signal power based on the second port error factor Eijb measured by the error factor measurement device 20.
- the third port error factor Eijc from the port error factor recording unit 2 3 of the error factor measuring device 20 is adjusted to the signal power. This may be given to part 30.
- the signal power adjustment unit 30 adjusts the signal power based on the third port error factor Eijc measured by the error factor measurement device 20.
- the tester (test device) 70 has the output correction device 1 and the switch branch signal source 10 0 so that the signal output from the output terminal (for example, the output terminal 19 d) is measured.
- (DUT: Device Under Test) 6 6 may be provided.
- a test device module having the error factor measurement device 20 may be provided in the tester 70.
- the reflection coefficient measurement device 2 includes an error factor measurement device 20 and a reflection coefficient measurement unit 40. The details of the error factor measurement device 20 are as described above, but the fourth port error factor Eijd recorded in the port error factor recording unit 23 is given to the reflection coefficient measurement unit 40.
- the reflection coefficient measurement unit 40 measures the result R 1 of the signal measured before the fourth port error factor Eijd occurs and the result R 2 of the signal reflected by the measured object 66 (the signal is measured). What is reflected by the fixed object 6 6 is given to the mixer 16 b via the switch 18 and the bridge 14 b) and the error factor measuring device 20 Based on the measured fourth port error factor Eijd, the reflection coefficient of the object to be measured 66 is measured. In order to measure the reflection coefficient of the DUT 6 6 connected to the output terminal 19 a, the first port error factor Eija is reflected from the port error factor recording unit 2 3 of the error factor measuring device 20. Give it to the coefficient measurement unit 40.
- the reflection coefficient measurement unit 40 measures the reflection coefficient of the object to be measured 66 based on R 1, R 2 and the first port error factor Eija measured by the error factor measurement device 20. In order to measure the reflection coefficient of the object to be measured 66 connected to the output terminal 19 b, the second port error factor Eijb is reflected from the port error factor recording unit 23 of the error factor measuring device 20. What is necessary is just to give to the coefficient measurement part 40.
- the reflection coefficient measurement unit 40 measures the reflection coefficient of the object to be measured 66 based on R 1 and R 2 and the second port error factor Eijb measured by the error factor measurement device 20.
- the third port error factor Eijc is reflected from the port error factor recording unit 23 of the error factor measuring device 20. What is necessary is just to give to the coefficient measurement part 40.
- the reflection coefficient measurement unit 40 measures the reflection coefficient of the object to be measured 66 based on R 1 and R 2 and the third port error factor Eijc measured by the error factor measurement device 20.
- the tester (test device) 70 has the reflection coefficient measuring device 2 and the switch branch signal source 10 so that the device under test (DUT: Device Under Test) 6 6 may be tested (the test method is well known and will not be described).
- a test device module having an error factor measuring device 20 may be provided in the tester 70.
- said embodiment is realizable as follows.
- a program that implements each of the above parts for example, error factor measuring device 20) in a media reader of a computer equipped with a reader. Read the recorded media and install it on the hard disk.
- Such a method can also realize the above functions.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2009524467A JP5121075B2 (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補正装置、反射係数測定装置 |
DE112008001948T DE112008001948T5 (de) | 2007-07-23 | 2008-07-11 | Gerät, Verfahren, Programm und Speichermedium für Fehlerfaktormessung und Output-Korrekturgerät und Messgerät für einen Reflektionskoeffizienten, welches mit dem Gerät für Fehlerfaktormessung ausgestattet ist |
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JP2007190348 | 2007-07-23 | ||
JP2007-190348 | 2007-07-23 |
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WO2009014072A1 true WO2009014072A1 (ja) | 2009-01-29 |
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PCT/JP2008/062964 WO2009014072A1 (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補正装置、反射係数測定装置 |
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US (1) | US7616007B2 (ja) |
JP (1) | JP5121075B2 (ja) |
KR (1) | KR20100027220A (ja) |
DE (1) | DE112008001948T5 (ja) |
TW (1) | TW200912331A (ja) |
WO (1) | WO2009014072A1 (ja) |
Cited By (1)
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JP2015511712A (ja) * | 2012-03-28 | 2015-04-20 | ローゼンベルガー ホーフフレクベンツテクニーク ゲーエムベーハー ウント ツェーオー カーゲー | 周波数ドメインでの校正を伴う時間ドメイン測定方法 |
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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 |
JP5521807B2 (ja) * | 2010-06-16 | 2014-06-18 | 富士通株式会社 | 障害原因推定装置、障害原因推定プログラム及び障害原因推定方法 |
CN104254777B (zh) * | 2011-12-05 | 2016-08-24 | 伯乐实验室公司 | 重组脱酰胺化麦醇溶蛋白抗原 |
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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 |
JPH11118853A (ja) * | 1997-08-26 | 1999-04-30 | Hewlett Packard Co <Hp> | ネットワークアナライザの自動較正 |
WO2003087856A1 (fr) * | 2002-04-17 | 2003-10-23 | Advantest Corporation | Analyseur de reseau, procede d'analyse de reseau, correcteur automatique, procede de correction, programme, et support d'enregistrement |
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 |
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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DE3911254A1 (de) * | 1989-04-07 | 1990-10-11 | Eul Hermann Josef Dipl Ing | Verfahren zur etablierung der komplexen messfaehigkeit homodyner netzwerkanalysevorrichtungen |
US6188968B1 (en) | 1998-05-18 | 2001-02-13 | Agilent Technologies Inc. | Removing effects of adapters present during vector network analyzer calibration |
DE10106254B4 (de) * | 2001-02-10 | 2006-12-07 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zur Fehlerkorrektur durch De-embedding von Streuparametern, Netzwerkanalysator und Schaltmodul |
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 |
-
2007
- 2007-09-28 US US11/864,086 patent/US7616007B2/en not_active Expired - Fee Related
-
2008
- 2008-07-11 JP JP2009524467A patent/JP5121075B2/ja not_active Expired - Fee Related
- 2008-07-11 DE DE112008001948T patent/DE112008001948T5/de not_active Withdrawn
- 2008-07-11 WO PCT/JP2008/062964 patent/WO2009014072A1/ja active Application Filing
- 2008-07-11 KR KR1020107000881A patent/KR20100027220A/ko active IP Right Grant
- 2008-07-11 TW TW097126343A patent/TW200912331A/zh not_active IP Right Cessation
Patent Citations (5)
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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 |
JPH11118853A (ja) * | 1997-08-26 | 1999-04-30 | Hewlett Packard Co <Hp> | ネットワークアナライザの自動較正 |
WO2003087856A1 (fr) * | 2002-04-17 | 2003-10-23 | Advantest Corporation | Analyseur de reseau, procede d'analyse de reseau, correcteur automatique, procede de correction, programme, et support d'enregistrement |
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 |
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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JP2015511712A (ja) * | 2012-03-28 | 2015-04-20 | ローゼンベルガー ホーフフレクベンツテクニーク ゲーエムベーハー ウント ツェーオー カーゲー | 周波数ドメインでの校正を伴う時間ドメイン測定方法 |
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Publication number | Publication date |
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TWI363182B (ja) | 2012-05-01 |
KR20100027220A (ko) | 2010-03-10 |
JPWO2009014072A1 (ja) | 2010-09-30 |
US20090031172A1 (en) | 2009-01-29 |
US7616007B2 (en) | 2009-11-10 |
JP5121075B2 (ja) | 2013-01-16 |
DE112008001948T5 (de) | 2010-06-02 |
TW200912331A (en) | 2009-03-16 |
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