Abstract:
PROBLEM TO BE SOLVED: To easily calibrate a signal generating system such as a switch branch signal source. SOLUTION: An error factor determination device 20 is provided with an error factor recording part for recording error factors Eija in the signal generating system 100 having both a signal generating part 12 for generating signals and an output terminal 19a for outputting signals; a reflection coefficient deriving part 24 for deriving a reflection coefficient of the output terminal 19a on the basis of measurement results R1 and R2 of signals in a state in which the output terminal 19a is outputting signals and the error factors Eija recorded in the error factor recording part; and a validity determination part for determining the validity of the recorded error factors Eija on the basis of a derived reflection coefficient Xm and a true value of a reflection coefficient. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To easily calibrate a signal generating system such as a switch branch signal source. SOLUTION: An error factor determination device 20 is provided with an error factor recording part for recording error factors Eija in the signal generating system 100 having both a signal generating part 12 for generating signals and an output terminal 19a for outputting signals; a reflection coefficient deriving part 24 for deriving a reflection coefficient of the output terminal 19a on the basis of measurement results R1 and R2 of signals in a state in which the output terminal 19a is outputting signals and the error factors Eija recorded in the error factor recording part; and a validity determination part for determining the validity of the recorded error factors Eija on the basis of a derived reflection coefficient Xm and a true value of a reflection coefficient. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a measurement device and a measurement method capable of precisely calibrating output power of a signal generator. SOLUTION: The measurement device measuring an output reflection coefficient of a signal generator outputting an output signal of the power according to a given setting value includes: at least four connection circuits having mutually different input reflection coefficients; a selection part sequentially connecting each of the at least four connection circuits to the signal generator; a generation control part by which the output signal of the prescribed power and a prescribed frequency is output from the signal generator; a power measurement device sequentially measuring the power of the output signal output from the signal generator in each of the states in which the at least four connection circuits are sequentially connected to the signal generator; and an output reflection coefficient calculation part calculating the output reflection coefficient of the signal generator on the basis of the prescribed power, a power measurement value measured by the power measurement device, and the input reflection coefficient at each of the prescribed frequencies of the at least four connection circuits. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To relieve labor of choosing and linking two ports, in a port of a network analyzer for the measurement of a transmission tracking. SOLUTION: A test set, which is branching 4 ports into 9 ports (main port group: 3 ports, subport group: 3 ports×2) is connected to the network analyzer 1. The transmission tracking deciding part 7 decides the transmission tracking on a combination among the transmitting and receiving ports 1a, 1b, 1c, and 1d and one of the realizable connections of the main port group of the test set and one of the realizable connections of the subport group of the test set, on all realizable connections of the main port group, based on the signal before transmitting and the received signal from the transmitting and receiving ports 1a, 1b, 1c, and 1d. Further, the transmission tracking inlet part 8 which introduces the other transmission tracking is prepared, based on the transmission tracking decided by the transmission tracking deciding part 7. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a network analyzer having a key input means enabling a user to change and set conveniently in key operation for setting and changing a parameter of a matrix form. SOLUTION: In this network analyzer, the matrix position of a parameter of a matrix form is designated by one or more designated subscripts of two or more digits showing a matrix, and according to the designation, the concerned data is displayed on a screen. The network analyzer inputs a numerical value corresponding to one or more designated subscripts by a ten-key when the subscript is the numerical value, and displays the data corresponding to the parameter of the matrix form on a screen according to the input of a designated determination key after ten-key input.
Abstract:
PROBLEM TO BE SOLVED: To provide a network analyzer, network analysis method, automatic calibration machine, calibration method, program and recording medium that enable error compensation of measuring system, even if frequency of input signal is different from that of the output signal for the measuring object. SOLUTION: In this method, signal output acquiring section 62 acquires power of the input signal by a power meter (not shown). As a result, errors caused by frequency tracking, such as, Er1 or Er2 can be separated, depending on directions in signal flow graph. Furthermore, measurement system error-cause Et in receiving means 20 can also be acquired, because a receiver (TR) 26a measures the S parameter on the signal received, when a signal source 10 is directed connected to the receiving means 20. Then the S parameter on DUT2 can be measured, while the error is compensated by combining with measured results on DUT2 from a receiver (RS) 16a, a receiver (TS) 16b and a receiver (TR) 26a. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To easily calibrate a signal generating system such as a switch branch signal source. SOLUTION: An error factor determination device 20 is provided with a first port error factor acquisition part 22 for acquiring first port error factors Eija, error factors on an output terminal for measurement of a switch branch signal source, on the basis of measurement results of signals; a switch part error factor recording part 24 for recording switch part error factors Qija, Qijb, Qijc, and Qijd, error factors of a switch; a signal source error factor acquisition part 28a for acquiring signal source error factors Pij, error factors on the signal source, on the basis of the switch part error factor Qija on the output terminal for measurement among the switch part error factors and the first port error factor Eija; and a second port error factor deriving part 28b for deriving second port error factors Eijb on the basis of signal source error factors Pij and the switch part error factors Qijb on output terminals except the output terminal for measurement among the switch part error factors. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To calibrate a system for measuring circuit parameters of a measured object and reduce the number of attachments and removals of a calibration kit. SOLUTION: A network analyzer 1 is provided with a first calibrator 100, connected to ports 18, 28 and having a first state achieving part 120 for achieving opened, shorted and standard loads on the ports 18, 28 or shorting the ports 18, 28, and a second calibrator 200, connected to the first calibrator 100 and a DUT 400 and having a second state achieving part 220 for achieving the opened, shorted and standard loads on the ports 18, 28. The first calibrator 100 has first connections 110a, 110b for connecting the ports 18, 28 to one of the first state achieving part 120 and the second calibrator 200, and the second calibrator 200 has a second connection 210 for connecting the ports 18, 28 to either the second state achieving part 220 or the DUT 400. COPYRIGHT: (C)2005,JPO&NCIPI