Abstract:
PROBLEM TO BE SOLVED: To provide an impedance measuring method that reduces the contact resistance with an electronic component to be measured, prevents the occurrence of measuring variations resulting from the contact resistance, and accurately measures impedance. SOLUTION: The impedance measuring method uses an impedance measuring instrument, a coaxial connector 10 electrically connected to the impedance measuring instrument, and a measurement board 20 storable in the coaxial connector 10. The measurement board 20 has an insulating substrate IS1, and first and second conductors 21 and 22 formed on the first main surface IS1a of the insulating substrate IS1. The measurement board 20 mounted with the electronic component 40 to be measured is stored in the coaxial connector 10 connected to the impedance measuring instrument so that the first conductor 21 is electrically connected to a central conductor 11 and the second conductor 22 is electrically connected to an external conductor 12, and the impedance of the electronic component 40 to be measured is measured by the impedance measuring instrument. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a means that is not more complex and accurately calibrates a vector network analyzer. SOLUTION: In one embodiment, a method comprises applying a stimulus signal to a reference frequency translation device (FTD) 108 by a vector network analyzer 500 during a calibration mode, wherein the reference FTD possesses equal conversion efficiency in forward and reverse directions and the reference FTD possesses unknown input and output reflection characteristics; measuring a response of the reference FTD; and determining forward and reverse transmission tracking error terms 505 using data from the measured response and single-port error calibration terms. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for measuring the characteristics of high-frequency circuits in such a way that RF signals may not be affected by measured values. SOLUTION: Prior to the measurement of the characteristics of high-frequency circuits with probe heads 30 and 32 for RF measurement, the probe heads 30 and 32 for RF measurement are calibrated through the use of an extended line 14 for signals arranged on a dielectric substrate 12 and having one characteristic impedance; a first GND pad 16 having one end arranged in the vicinity of a first end part 14a of the line 14 for signals at a prescribed interval; a second GND pad 24 having one end arranged in the vicinity of a second end part of the line for signals at a prescribed interval; and a calibration pattern 10 provided with a through hole electrode 18, a via hole 20, and a back metal layer 22 as conductors for connecting the first GND pad 16 to the second GND pad 24. COPYRIGHT: (C)2006,JPO&NCIPI