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The following topics are dealt with: fundamental constant, resistance, ac-dc transfer, voltage, power, impedance, magnetic variable, time and frequency measurements and standards; calibration of measurement techniques and set-ups; photonic and magnetic methods; radiofrequency measurement methods.
This paper describes how to calibrate four-terminal-pair (4TP) admittance standards using a new short-bar method with modified Z-matrix expression containing a correction term. The short-bar method is to measure the signal to correspond to the standard with better S/N for higher impedance standard, especially 1 pF. Therefore a 1 pF capacitor can be calibrated containing the direct measurement at reporting...
We report on the precise calibration of capacitance standards based on two independent ac quantum Hall resistances. The capacitance is thereby traced to a quantum standard of impedance. The advantages of the realized chain and experimental tests of the coaxial ac bridges involved will be discussed.
Numerous wireless communication devices such as integrated circuits and micro biochips are emerging in the 1 to 4 GHz frequency range. Thus it has become crucial to accurately determine the permeability and permittivity of such materials and devices in this spectral range. In this paper, we present a propagation and impedance technique for the microstripline. Three different substrates (Alumina, Silicon...
We investigate the importance of broadband substrate permittivity and loss tangent data for accurately calculating the frequency-dependent characteristic impedance and propagation constant of ungrounded coplanar waveguides (CPWs). To determine the electrical properties of a CPW, we use a quasi-TEM model that takes into account the effects of non-ideal conductors, substrate loss and finite metallization...
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