WO2005101035A1 - 電子部品の高周波電気特性測定方法および装置、高周波電気特性測定装置の校正方法 - Google Patents
電子部品の高周波電気特性測定方法および装置、高周波電気特性測定装置の校正方法 Download PDFInfo
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- WO2005101035A1 WO2005101035A1 PCT/JP2004/019087 JP2004019087W WO2005101035A1 WO 2005101035 A1 WO2005101035 A1 WO 2005101035A1 JP 2004019087 W JP2004019087 W JP 2004019087W WO 2005101035 A1 WO2005101035 A1 WO 2005101035A1
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- signal conductor
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- measuring
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- transmission line
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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
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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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
- G01R27/32—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
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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
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2822—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
Definitions
- the present invention relates to a method for measuring high-frequency electrical characteristics of a two-terminal electronic component such as a chip inductor, a chip capacitor, and a chip resistor, and a high-frequency electrical characteristic of an antenna.
- the present invention relates to a method for correcting a measurement error when measuring a Q value by a reflection method.
- TRL Through-Reflection-Load
- SOLT Short-Open-Load-Through
- FIGS. 1 and 2 show a measurement system using a network analyzer and error models used in SOLUTE and TRL correction.
- the electronic component 1 as a subject is connected to a transmission path formed on the upper surface of the measuring jig 2. Both ends of the transmission line of the measurement jig 2 are connected to measurement ports of a network analyzer (not shown) via coaxial cables 3.
- S — S is the scattering coefficient of the transmission path including the subject
- EEE is the scattering coefficient at one measurement port
- EE is The scattering coefficient
- 11A—S is the scattering coefficient of the subject, e—e is one
- the standard device required for correction cannot be realized in a chip device shape.
- a planar transmission line used for measuring surface mount components cannot obtain a good “open” or “termination” unlike waveguides and coaxial transmission lines, and practically requires SOLT correction.
- the measured value obtained by measurement is a characteristic obtained by combining the subject 1 and the measuring jig 2 that connects the subject, which is not the subject itself, and the characteristics of the subject alone must be measured. I can't.
- TRL correction refers to a transmission path 5a in a port directly connected state (Through) and a total reflection (Reflection: normal short circuit) as shown in FIG.
- a transmission line 5b and several types of transmission lines (Lines) 5c and 5d having different lengths are used as standard devices.
- Transmission lines 5a-5d are manufactured with relatively known scattering coefficients, and if total reflection is short-circuited, the characteristics can be predicted relatively easily. It is. Therefore, in principle, the characteristics of the subject 1 alone can be measured.
- the through transmission line 5a is a so-called Zero-through.
- the subject is serially connected to a measuring jig 2 having a length longer than the through transmission path 5a by the size of the subject, and measurement is performed.
- the coaxial connector 3 is shared and the coaxial pin is contact-connected to a transmission line, which is a standard device, to avoid the influence of variations in connector measurement.
- a transmission line which is a standard device
- the transmission line and the coaxial pin generally become thinner, and the measurement variation due to the reproducibility of the positioning increases.
- Patent Document 1 discloses a method for calibrating a network analyzer having two test terminals connected to a subject via a strip line. That is, in the first calibration measurement, transmission and reflection parameters are measured on a line whose propagation constant is unknown, on a strip line connected in a non-reflective manner between the two test terminals, and the same line is measured. Is used to perform three additional calibration measurements with three calibration standards realized by reflection symmetric and reciprocal discontinuities inserted at three different locations on the line.
- the measured value obtained by connecting the subject becomes a characteristic obtained by combining the subject that is not only the subject and the strip line that connects the subject, and cannot measure the characteristic of the subject alone.
- Patent Document 1 JP-A-6-34686
- an object of the present invention is to solve the problems in TRL correction and SOLT correction, and to provide a high-precision method for measuring high-frequency electrical characteristics of electronic components without being affected by variations in characteristics of connection parts. It is in.
- Another object of the present invention is to provide a high-precision electronic device for measuring high-frequency electrical characteristics of electronic components.
- an invention according to claim 1 is a method for measuring high-frequency electrical characteristics of an electronic component, comprising a signal conductor having one open end, a ground conductor, and a unit length. Preparing a transmission line having a known electrical characteristic per contact, connecting the other end of the signal conductor and the ground conductor to a measurement port of a measuring device, and at least three positions in a length direction of the signal conductor. Measuring the electrical characteristics by connecting the signal conductor and the ground conductor to each other, and determining an error factor of the measurement system including the transmission line from the measured value in the connection state and the electrical characteristics of the transmission line.
- a subject is connected between a signal conductor and a ground conductor of a transmission line which is a measuring jig.
- the reflection coefficient is measured, and the electrical characteristics such as the impedance value and the quality factor are determined from the reflection coefficient.
- the present invention has been made based on the finding that when measuring an error in a measurement system, a good reflection state of a transmission path can be easily realized.
- a short-circuit reference is used as a calibration reference (standard). This is because, in a short-circuit state, almost total reflection occurs, so that the signal transmission line is not affected by the termination side, and the characteristics of the short-circuit state in the frequency range where the target transmission line operates in TEM single mode This is because there is substantially no influence of the dielectric material, and its electric characteristics can be predicted very accurately by electromagnetic field simulation.
- the parameter that limits the accuracy during the simulation of the transmission line characteristics is the dielectric constant, but in the reflection characteristics in the short-circuit state, even if the dielectric constant is changed, there is almost no change in the calculation results! / ⁇ . It has been confirmed, and it can be said that the simulation result may be used as a physical true value during calibration. If the width of the transmission line is sufficiently smaller than the wavelength of the measurement signal, it is considered that a large error does not occur even if 1 (reflection coefficient of ideal short circuit) is used as the short circuit characteristic.
- error factors of the measurement system are set by short-circuiting the transmission line at at least three points on the transmission line that has a uniform electrical characteristic in the length direction and has an open-ended signal conductor at one end. Is identified.
- a short-circuit reference is connected between the signal conductor and the ground conductor. Specifically, measurement is performed by connecting a short-circuit reference to the subject measurement position on the transmission path, and then connecting the short-circuit reference to a point L away from the subject measurement position.
- the short-circuit reference refers to a general component in an electrically short-circuited state, and is not limited to a chip component, but may be a metal piece or a tool. Desirably, the connection along the length of the transmission line such as a knife edge Shorter contact length is better. If the short-circuit reference is ideal, the reflection coefficient will be a value of -1 (total reflection), but in practice, the short-circuit reference has some inductance, so the inductance value needs to be known. That is. Normally, in the microwave band, the short-circuit state is relatively easy to achieve the ideal state compared to the open state. If measurement accuracy is required, the inductance based on the short circuit may be obtained by a simple simulation or the like.
- measurement in a short-circuit state can be performed at three or more locations to determine the error factors in the measurement system.
- the true value of the electrical characteristics of the subject can be obtained by calculation.
- the signal conductor and the ground conductor are short-circuited using the short-circuit criterion.
- the signal conductor and the ground conductor are not necessarily short-circuited so that some reflection state is obtained. You have to connect ⁇ .
- a terminator close to the characteristic impedance should be connected between the open end of the signal conductor and the ground conductor, and in this state, appropriate calibration standards should be connected to at least three points on the transmission line to perform calibration work. You can also. In this case, since most signals are absorbed without rebound at the open end, even if a small transfer coefficient or chip components are used as calibration standards, the error is small and the accuracy required for calibration can be obtained.
- the RRR calibration method implemented as described above has the following features.
- transmission lines of various lengths are required as standard equipment, and all electrical characteristics of the connections between these and the coaxial cable must be the same. Since the same transmission line is used for all measurement tasks, there is no need to replace the transmission line.
- the length of the transmission path required for the measuring jig is determined by the lower limit of the frequency to be measured. Long transmission lines are needed to handle low frequencies. Short transmission lines are sufficient to handle high frequencies.
- the measurement for correction is made by connecting a calibration standard (for example, short-circuit standard) at several places on the transmission line.
- a calibration standard for example, short-circuit standard
- the distance from the measurement position of the subject and how many calibration standards should be used for measurement are determined by the measurement frequency bandwidth and the upper frequency limit.
- the characteristics of the transmission line can be known.
- the measurement system error factors can be obtained by connecting the calibration standards at three locations, but the measurement system error factors can be obtained by connecting the calibration standards at four or more locations.
- a transmission line jig made of a base material such as Teflon (registered trademark) or alumina is easy to obtain a physical true value with small variation in electrical characteristics, but is expensive.
- a transmission line jig made of a base material made of a general-purpose resin such as epoxy resin is inexpensive.
- a short-circuit reference is connected to the transmission line in order to short-circuit the signal conductor and the ground conductor of the transmission line.
- the frequency is high, the effect of the residual inductance of the short-circuit reference is large and the short-circuit reference is sufficiently close to a short-circuit. There are cases where total reflection cannot be obtained.
- the calibration reference is brought close to (non-contact with) the transmission line, and that the stray capacitance generated between the transmission line and the calibration reference and the residual inductance of the calibration reference be in a series resonance state.
- the impedance of the calibration reference connection is ⁇ , that is, an ideal short-circuit state.
- this capacitor can be brought into contact (complete connection) with the transmission path to cause series resonance.
- the transmission line of the present invention it is better to use a transmission line in which a signal conductor and a ground conductor are formed on the same plane! This is because it is easy to simultaneously connect the calibration reference and the test object to the signal conductor and the ground conductor in the correction operation using the calibration reference and the measurement operation using the test object.
- the calibration reference and the pressing of the subject at the time of the correction measurement can be performed perpendicular to the transmission path, it is easy to secure a sufficient pressing load and the contact is easily stabilized.
- a coplanar waveguide or a slot line can be used as a specific transmission line.
- the coplanar waveguide has a signal conductor and ground conductors on both sides of the signal conductor, and the signal conductor and the ground conductor are formed on the same plane. Suitable for measurement.
- a slot line in which a signal conductor and a ground conductor are provided on the same plane with an interval, is suitable for measuring high-frequency characteristics of 10 GHz or more.
- the position where the calibration reference is connected is a position where the phase difference between the positions is 70 ° -145 °.
- the correction data be as far away from each other as possible.
- RRR calibration which obtains different correction data depending on the phase of reflection of the calibration reference
- the phase difference between the connection positions is set as described above, the calibration accuracy will be high, but the frequency range that can be supported by one set of calibration standards will be narrowed.
- it is very easy to set the calibration reference connection position and if the measurement data during calibration is used properly, the number of calibration reference measurements will increase to a practical problem even in wideband measurement. There is no.
- FIG. 1 is a diagram showing a measurement system using a conventional network analyzer and an error model of SOLT correction.
- FIG. 2 is a diagram showing a measurement system using a conventional network analyzer and an error model of TRL correction.
- FIG. 3 is a diagram showing a SOLT calibration method.
- FIG. 4 is a diagram showing a TRL calibration method.
- FIG. 5 is a plan view of a high-frequency electrical characteristic measuring apparatus showing a first embodiment of the RRR calibration method according to the present invention.
- FIG. 6 is a front view of the high-frequency electrical characteristic measuring device at the time of calibration shown in FIG. 5.
- FIG. 7 is an error model diagram used in the RRR calibration method.
- FIG. 8 is a plan view of the high-frequency electrical characteristic measuring apparatus according to the present invention when measuring an object.
- FIG. 9 is a flowchart of an example of an RRR calibration method that is useful in the present invention.
- FIG. 10 is a high-frequency characteristic diagram of a chip inductor measured by using an RRR calibration method.
- FIG. 11 is a plan view of a high-frequency electrical characteristic measuring device showing a second embodiment of the RRR calibration method according to the present invention.
- FIG. 12 is a model diagram of open / short circuit correction.
- FIG. 13 is a diagram showing an example of performing series resonance between a calibration reference and a transmission line.
- FIG. 14 is a plan view of another example of a transmission line that can be used in the high-frequency electrical characteristic measuring method according to the present invention.
- FIGS. 5 to 8 show a first embodiment according to the present invention.
- the calibration standards to be measured are all the same short circuit standards 10, and the measurement jig 11 (transmission line 12) used is the same jig.
- the measurement jig 11 As the measurement jig 11, a coplanar waveguide (hereinafter, referred to as CPW) will be described as an example. As shown in FIGS. 5 and 6, the measurement jig 11 has a transmission path 12 formed of a signal conductor 12a and a ground conductor 12b on the upper surface of a jig substrate 11a. In this measurement jig 11, a ground conductor 12c is also formed on the back surface of the jig substrate 11a. One end of the signal conductor 12a is an open end, and the other end is connected to a connector lib.
- the ground conductor 12b is formed in a substantially U-shape so as to surround both sides in the width direction and the open end of the signal conductor 12a with a gap.
- a coaxial cable 14 is connected to the connector l ib and connected to measurement ports 21 and 22 of a network analyzer 20 which is an example of a measuring instrument.
- the signal line 14a of the coaxial cable 14 is fixed to the signal conductor 12a by soldering, welding, or the like to eliminate connection variations.
- the measurement ports 21 and 22 are connected to a signal conductor 12a and a ground conductor 12b via a coaxial cable 14, respectively.
- a pusher 15 for pressing the short-circuit reference 10 against the transmission line 12 and a mechanism 16 for freely moving the pusher 15 along the transmission line 12 are provided above the measurement jig 11. It has been.
- the short-circuit criterion 10 a knife-edge-shaped conductor attached to the tip of an insulating pusher 15 was used.
- the measurement is performed by connecting the short-circuit reference 10 to the location where the electrodes are connected during measurement of the subject (measurement point 1: P1 in Fig. 5; hereafter referred to as the "test subject measurement location").
- This value is 1 if the length of the transmission path 12 in the length direction of the short-circuit reference 10 is sufficiently small compared to the measured signal wavelength, and 1 otherwise. It should be sought in the case of simi-urations.
- Point 2 Connect a short-circuit reference 10 to P2) and perform measurement. Let S be the measurement result at this time. This
- Equation 1 When the sample measurement point is taken as the reference plane, the true value of the reflection coefficient is converted as in Equation 1. Since the electromagnetic wave incident from the port 1 side is totally reflected at the short-circuit reference 10, the transmission distance of the transmission path by 2 L for the round trip is shorter than when the short-circuit reference 10 is connected to the measurement point of the subject! ,
- ⁇ is the transmission rate of the transmission line per unit length [U / mm]
- j8 is the phase constant of the transmission line [rad / mm]
- ⁇ is the measurement when the subject measurement point is used as the reference plane.
- Measurement is performed by connecting short-circuit reference 10 to fixed point 3: P3), and the measurement result at this time is S.
- T A3 r M a- 2L 'cxp (j2fiL 2 )
- Equations 1 and 2 that the transmission power of the transmission path is a negative power, ⁇ ⁇ , ⁇ may exceed 1 in magnitude. Normally, the magnitude of the reflection coefficient is Although no short-circuit reference exceeding 1 can exist, this is a condition that occurs because Equations 1 and 2 take the reference plane at the object measurement location, and are not abnormal.
- Equation 3 The true value ⁇ of the reflection coefficient at fixed point 4 is as shown in Equation 3.
- ⁇ physically represents the transmission coefficient of the transmission path per unit length.
- Equations 1 to 3 can be rewritten as Equations 5 to 7, respectively.
- the short-circuit reference is short-circuited at four points of the transmission path, so that the transmission path characteristic ⁇ that can be obtained only by the error coefficient can be obtained.
- Transmission line characteristic 6 includes two unknowns, transmission a and phase coefficient ⁇ .
- the sex can be obtained as one unknown, a force whose real part is related to the transmissivity a and whose imaginary part is a complex number whose phase coefficient is 13.
- the channel characteristics can be explicitly calculated using the following mathematical formula. If the above relationship is not satisfied, the transmission path characteristics cannot be calculated using the following equation, and must be obtained by iterative calculation or the like.
- Figure 7 shows an error model for RRR calibration.
- the reflection method is a method of observing how much of the electromagnetic wave incident on the subject 17 is reflected by the force of one port (connector l ib) and obtaining the impedance or the like from this.
- the error factor is also E
- 11A is the true value of the scattering coefficient of the subject.
- Equation 10 E is calculated by Equation 10. D is an intermediate variable.
- the subject 17 When the error coefficient is obtained, as shown in FIG. 8, the subject 17 is connected between the signal conductor 12a and the ground conductor 12b, and its electrical characteristics are measured.
- the subject 17 may be adsorbed using a chip mounter or the like, and the subject 17 may be brought into contact with the subject measuring position of the measuring jig 11 to measure the reflection coefficient (S)!
- Error model for RRR calibration is the same as error model for TRL correction
- the same calculation as in TRL correction can be performed to remove the effect of the error, and the true value of the reflection coefficient S of the subject is calculated.
- the formula to be obtained is described below. It should be noted that the calculation formula for removing the influence of the error factor is not limited to the following formula, and any known technology may be used.
- FIG. 9 is a flowchart of an example of the RRR calibration method.
- Step S1 When the correction is started, first, the measuring instrument and the measuring jig are connected via a coaxial cable (Step S1). Next, the signal conductor 12a and the ground conductor 12b are short-circuited at the first position, which is the open end of the signal conductor 12a, according to the short-circuit reference 10 (Step S2). The first position may be near the subject measurement position or another position. With the short-circuit reference 10 connected, measure the reflection coefficient (S) on the port 1 side (step S3).
- S reflection coefficient
- Step S4 the signal conductor 12a and the ground conductor 12b are short-circuited at the second position by the short-circuit reference 10 (Step S4), and the reflection coefficient (S) on the port 1 side is measured (Step S5).
- Step S5 the reflection coefficient (S) on the port 1 side is measured.
- the signal conductor 12a and the ground conductor 12b are short-circuited according to the short-circuit reference 10 (Step S6), and the reflection coefficient (S) of the port 1 is measured (Step S7).
- the signal conductor 12a and the ground conductor 12b are further short-circuited at the fourth position by the short-circuit reference 10 (step S8), and the reflection coefficient (S) on the port 1 side is measured (
- Step S9 the transmission path characteristic ⁇ on the port 1 side is calculated from these reflection coefficients (step S10). If the transmission path characteristics are known, steps S8 to S10 are unnecessary.
- step S14 The error is removed (step S14), and the error removal result (true value of the subject) is displayed on a display or the like, and the subject is sorted out (step S15). Thereafter, steps S12 to S15 are repeated until measurement of all subjects is completed (step S16), and measurement of all subjects is completed Then, the RRR calibration ends.
- Fig. 10 shows the results of measurement of chip inductors (multilayer type chip inductors) with a size of 1mm x 0.5mm and ⁇ in the range of 1GHz to 3GHz using RRR calibration.
- the impedance analyzer is 4991A, sold by Agilent Technologies.
- the short-circuit reference 10 is measured at a position where the subject is measured on the transmission line 12 and at a point 5 mm away from this force. If the loss in the transmission path 12 is not large, the only difference between the two measurement results is the phase.
- the force wavelength is 10 mm (the wavelength of an electromagnetic wave of 3 GHz in a vacuum)
- correction cannot be performed normally at a wavelength of 10 mm with a difference of 5 mm.
- the correction data be as far apart from each other as possible.
- RRR calibration which obtains different correction data depending on the phase of the reflection of the short-circuit reference
- the connection between the short-circuit reference connection positions It is better to adopt the condition that the phase difference is 70 °-145 °.
- phase difference between calibration standards improves the accuracy of calibration, but narrows the frequency range that can be handled by a single set of calibration standards, making it necessary to measure many calibration standards when performing broadband measurements .
- Calibration is performed using the phase difference between calibration standards as in the case of RRR calibration.
- the phase difference between calibration standards should be at least about 20 ° to 30 ° to obtain good measurement accuracy. It has been.
- the phase difference between the connection positions of the short-circuit reference is 70 °-145 °, the calibration accuracy is high, but the frequency range that can be handled by one set of calibration standards is much narrower than the above case. turn into.
- the setting of the short-circuit reference connection position is very simple, and if the measurement data during calibration is used well, the number of short-circuit reference measurement times will not be practical even in wideband measurement. This is because there is no increase.
- a second short-circuit reference measurement position at which the phase is about 145 ° at the measurement upper limit frequency is obtained.
- j8 [rad / mm] may be obtained by the following equation using the phase constant as L and [mm] as the short-circuit reference measurement position.
- the third short-circuit reference measurement position is set to 2 L [mm]
- the fourth short-circuit reference measurement position is set to 4 L [mm].
- set the n-th short-circuit reference measurement position is set to 2 n — 2 L [mm].
- RRR calibration is performed based on the measurement results of the first, second, and third short-circuit reference measurement positions.
- the phase difference between the short-circuit reference measurement positions is generally maintained in the range of 70 ° to 145 °.
- FIG. 11 shows an example of a calibration method using a calibration reference different from the short-circuit reference.
- the measuring jig 11 used here is the same as in the first embodiment.
- the signal conductor 12a and the ground conductor 12b were short-circuited using the short-circuit reference 10 to perform the calibration.However, the signal conductor 12a and the ground conductor were used to obtain a certain reflection state. It is also possible to use a calibration criterion 18 with a transfer coefficient instead of the short-circuit criterion 10 if it is connected to 12b.
- a terminating resistor 19 having a resistance close to the characteristic impedance of the transmission line 12 is connected between the open end of the signal conductor 12a and the ground conductor 12b.
- the terminating resistor 19 causes a so-called “matching” state, and the signal transmitted through the signal conductor 12a bounces at the open end. Absorbed without returning.
- the calibration is performed by connecting the calibration reference 18 to at least three points of the transmission line 12.
- P1—P4 is the connection position of calibration reference 18, and L measurement point 2
- a component having a transfer coefficient (such as a chip resistor) can be used instead of the short-circuit standard 10.
- a part of the signal entering the signal conductor 12a passes through the connection with the calibration reference 18 and is transmitted to the open end of the signal conductor 12a.
- the signal is absorbed by the terminating resistor 19 without bouncing off at the open end, even if a chip component with a slightly large transmission coefficient is used as the calibration standard 18, the error is small and high calibration accuracy is obtained.
- the error factor is removed up to the end of the jig transmission path, and for example, the effects of floating admittance, contact resistance, and other residual impedance between the connection points of the subject are not removed. Therefore, if these effects are considered to be significant, this effect can be mitigated by performing open / short correction after RRR calibration.
- Figure 12 shows a model of open-short correction.
- ⁇ represents the observed value of the reflection coefficient on the calibration surface
- Zp and Zs represent the floating admittance and the residual impedance, respectively.
- Zd represents the impedance of the subject, and is intended to measure the reflection coefficient originally caused by this.
- the reflection coefficient caused by Zd is calculated as follows. This is the formula for performing the open / short circuit correction.
- Equation 13 assumes a case where an ideal open / short circuit has been realized. In fact, open Discharge and short-circuit correction is a relatively rough correction, and in many cases, it seems that the decrease in correction accuracy due to this assumption does not become apparent.For example, the impedance of the calibration reference used for short-circuiting If is known, rs is calculated by taking this into account, and by using Equation 13 to calculate rs, the correction accuracy can be improved.
- RRR calibration can be used as a method for identifying the error factors of jigs.
- Recent network analyzers have a function (de-embedding function) that automatically removes the influence of the applied error from the measurement results when an error coefficient such as a jig is given.
- an error coefficient such as a jig
- it is a function that is not often used. This is a very useful feature when combined with the RRR calibration technique that powers our invention.
- de-embedding is a method of mathematically removing a known error factor, and can be easily implemented using a transmission matrix.
- E- 1 is obtained by converting the obtained scattering coefficient matrix of the error factor of the jig into a transmission matrix and inverting the matrix.
- the transmission matrix of the error factor of the jig is E.
- A be the transmission matrix of the device.
- the measurement results of measuring the device together with the jig using a network analyzer calibrated to the end of the coaxial cable are because the errors of each port are superimposed on the device.
- the RRR calibration procedure that requires high-precision positioning of the calibration reference is performed in a laboratory environment, and the error factors of each jig are determined with high accuracy.
- mass production can be performed using jigs that have already contributed error factors.
- jig errors are removed by de-embedding the error factors found in the laboratory. Leave.
- the RRR method can be operated without preparing a means for positioning the calibration reference with high accuracy and precision in each process, which is advantageous in terms of cost and process management.
- the measuring instrument is equipped with a computer and dedicated software.
- the residual inductance of the calibration standard and the parameters of the transmission line (phase constant [md / mm] and transmission loss ⁇ [dB / Hz]) and the contact position of the calibration standard When input, the calibration reference characteristic at each position is automatically calculated based on Equations 1 and 2, and this can be used for the correction calculation of Equation 10—Equation 12.
- the network analyzer can automatically predict the calibration reference value and perform RRR calibration.
- the short-circuited calibration reference (short-circuit reference) is connected to the transmission line due to the influence of the residual inductance of the calibration reference due to high frequency, etc., the short-circuit is not sufficiently close to a short circuit ( If not obtained).
- the calibration reference 26 can be brought into contact with the transmission line 12 to cause series resonance as shown in FIG. 13 (b).
- the calibration criterion 26 should use a very small capacitor.
- the impedance of the calibration reference connection is ⁇ , that is, an ideal short-circuit state. In other words, the same effect can be obtained even at a high frequency where a good short-circuit criterion is not obtained.
- a slot line 30 as shown in FIG. 14 may be used.
- the slot line 30 is connected to the signal conductor 31.
- the ground conductor 32 is provided on the same plane of the jig board 33 with a gap, and a connector 34 is provided on one end side of the jig board 33.
- the subject is connected between the signal conductor 31 and the ground conductor 32 to measure the electrical characteristics.
- the method for measuring high-frequency electrical characteristics according to the present invention is not limited to the above-described embodiment.
- the measuring device in the present invention is not limited to a network analyzer, and any device that can measure high-frequency electrical characteristics can be used.
- the transmission path in which all three or more calibration reference measurements are expressed in Equation 1 is Any structure can be used as long as it can connect a calibration reference that is not limited to a planar transmission line and can connect a subject between a signal conductor and a ground conductor.
- the high-frequency electrical characteristic measuring method according to the present invention has the following effects.
- the transmission line used for correction and the transmission line used for measuring the subject are the same, the transmission line is less susceptible to the fluctuation of the transmission line. Also, the connection between the transmission line and the measuring instrument is fixed for correction and actual measurement, and there is no need to reconnect, so that accidents such as correction failure due to poor connection of the transmission line do not occur.
- the characteristics of a single component of a test object can be measured with high accuracy, and are not affected by errors in jigs and the like.
- the present invention is a very effective method for accurately measuring the scattering coefficient and impedance value of a two-terminal impedance element such as a chip inductor and a chip capacitor, or a component such as an antenna by a high-frequency electrical characteristic measuring device. It is.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006512254A JP3912429B2 (ja) | 2004-04-02 | 2004-12-21 | 電子部品の高周波電気特性測定方法および装置、高周波電気特性測定装置の校正方法 |
DE112004002808.6T DE112004002808B4 (de) | 2004-04-02 | 2004-12-21 | Verfahren und Gerät zum Messen von elektrischen Hochfrequenzcharakteristika einer elektronischen Vorrichtung und Verfahren zum Kalibrieren von Geräten zum Messen von elektrischen Hochfrequenzcharakteristika |
US11/537,111 US7439748B2 (en) | 2004-04-02 | 2006-09-29 | Method and apparatus for measuring high-frequency electrical characteristics of electronic device, and method for calibrating apparatus for measuring high-frequency electrical characteristics |
Applications Claiming Priority (2)
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PCT/JP2004/004882 WO2005101037A1 (ja) | 2004-04-02 | 2004-04-02 | 電子部品の高周波電気特性測定方法および装置 |
JPPCT/JP2004/004882 | 2004-04-02 |
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PCT/JP2004/004882 Continuation WO2005101037A1 (ja) | 2004-04-02 | 2004-04-02 | 電子部品の高周波電気特性測定方法および装置 |
US11/537,111 Continuation US7439748B2 (en) | 2004-04-02 | 2006-09-29 | Method and apparatus for measuring high-frequency electrical characteristics of electronic device, and method for calibrating apparatus for measuring high-frequency electrical characteristics |
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WO2005101035A1 true WO2005101035A1 (ja) | 2005-10-27 |
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PCT/JP2004/004882 WO2005101037A1 (ja) | 2004-04-02 | 2004-04-02 | 電子部品の高周波電気特性測定方法および装置 |
PCT/JP2004/019087 WO2005101035A1 (ja) | 2004-04-02 | 2004-12-21 | 電子部品の高周波電気特性測定方法および装置、高周波電気特性測定装置の校正方法 |
PCT/JP2004/019086 WO2005101034A1 (ja) | 2004-04-02 | 2004-12-21 | 電子部品の高周波電気特性測定方法および装置、高周波電気特性測定装置の校正方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2006090550A1 (ja) * | 2005-02-22 | 2008-07-24 | 株式会社村田製作所 | 伝送路材料の誘電率測定方法およびこの誘電率測定方法を用いた電子部品の電気特性測定方法 |
JP2019211314A (ja) * | 2018-06-04 | 2019-12-12 | 国立研究開発法人産業技術総合研究所 | ベクトルネットワークアナライザを用いた反射係数の測定方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008065791A1 (fr) | 2006-11-30 | 2008-06-05 | Murata Manufacturing Co., Ltd. | Procédé de correction d'erreur de caractéristiques hautes fréquences d'un composant électronique |
JP2012198182A (ja) * | 2011-03-23 | 2012-10-18 | Fujitsu Ltd | 校正基板および回路パラメータの測定方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0354649A (ja) * | 1989-07-24 | 1991-03-08 | Oki Electric Ind Co Ltd | バッファ記憶制御方式 |
JPH0784879A (ja) * | 1993-09-09 | 1995-03-31 | Toshiba Corp | キャッシュメモリ装置 |
JPH10197577A (ja) * | 1997-01-10 | 1998-07-31 | Kyocera Corp | 高周波測定の校正標準器および校正法ならびに高周波用伝送線路の伝送損失の測定方法 |
JP2000029788A (ja) * | 1998-07-15 | 2000-01-28 | Nec Corp | キャッシュメモリシステム及びそれに用いるキャッシュ制御方法並びにその制御プログラムを記録した記録媒体 |
JP2001222467A (ja) * | 2000-02-07 | 2001-08-17 | Matsushita Electric Ind Co Ltd | キャッシュ装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3711793A (en) * | 1992-05-02 | 1993-11-04 | Laboratorium Prof. Dr. Rudolf Berthold Gmbh & Co. Kg | A method of calibrating a network analyzer |
DE4433375C2 (de) * | 1993-10-26 | 1998-07-02 | Rohde & Schwarz | Verfahren zum Kalibrieren eines Netzwerkanalysators |
JPH11211766A (ja) * | 1998-01-26 | 1999-08-06 | Advantest Corp | 自動キャリブレーション装置 |
DE10242932B4 (de) * | 2002-09-16 | 2009-02-05 | Rohde & Schwarz Gmbh & Co. Kg | Das LRR-Verfahren zur Kalibrierung von vektoriellen 4-Messstellen-Netzwerkanalysatoren |
-
2004
- 2004-04-02 WO PCT/JP2004/004882 patent/WO2005101037A1/ja active Application Filing
- 2004-12-21 JP JP2006512254A patent/JP3912429B2/ja active Active
- 2004-12-21 DE DE112004002808.6T patent/DE112004002808B4/de not_active Expired - Fee Related
- 2004-12-21 DE DE112004002805.1T patent/DE112004002805B4/de not_active Expired - Fee Related
- 2004-12-21 WO PCT/JP2004/019087 patent/WO2005101035A1/ja active Application Filing
- 2004-12-21 JP JP2006512253A patent/JP3912428B2/ja active Active
- 2004-12-21 WO PCT/JP2004/019086 patent/WO2005101034A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0354649A (ja) * | 1989-07-24 | 1991-03-08 | Oki Electric Ind Co Ltd | バッファ記憶制御方式 |
JPH0784879A (ja) * | 1993-09-09 | 1995-03-31 | Toshiba Corp | キャッシュメモリ装置 |
JPH10197577A (ja) * | 1997-01-10 | 1998-07-31 | Kyocera Corp | 高周波測定の校正標準器および校正法ならびに高周波用伝送線路の伝送損失の測定方法 |
JP2000029788A (ja) * | 1998-07-15 | 2000-01-28 | Nec Corp | キャッシュメモリシステム及びそれに用いるキャッシュ制御方法並びにその制御プログラムを記録した記録媒体 |
JP2001222467A (ja) * | 2000-02-07 | 2001-08-17 | Matsushita Electric Ind Co Ltd | キャッシュ装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2006090550A1 (ja) * | 2005-02-22 | 2008-07-24 | 株式会社村田製作所 | 伝送路材料の誘電率測定方法およびこの誘電率測定方法を用いた電子部品の電気特性測定方法 |
JP4650487B2 (ja) * | 2005-02-22 | 2011-03-16 | 株式会社村田製作所 | 伝送路材料の誘電率測定方法およびこの誘電率測定方法を用いた電子部品の電気特性測定方法 |
JP2019211314A (ja) * | 2018-06-04 | 2019-12-12 | 国立研究開発法人産業技術総合研究所 | ベクトルネットワークアナライザを用いた反射係数の測定方法 |
Also Published As
Publication number | Publication date |
---|---|
DE112004002808B4 (de) | 2017-09-21 |
DE112004002805B4 (de) | 2017-09-21 |
JP3912429B2 (ja) | 2007-05-09 |
JPWO2005101034A1 (ja) | 2008-03-06 |
WO2005101034A1 (ja) | 2005-10-27 |
WO2005101037A1 (ja) | 2005-10-27 |
DE112004002808T5 (de) | 2007-02-15 |
JPWO2005101035A1 (ja) | 2008-03-06 |
JP3912428B2 (ja) | 2007-05-09 |
DE112004002805T5 (de) | 2007-02-01 |
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