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Transmission lines take a crucial role in verifying measurement accuracy of a calibrated vector network analyzer (VNA) as well as in establishing traceability of measured Sparameters. Difficulties in manufacturing of long transmission lines demand verification of the test transmission line before use. This work presents a simple method for comparing characteristic impedance of a test line with the...
In the paper results of algorithms' comparison which are utilized for determination of vector network analyzer (VNA) residual parameters are described. Separation of parameters in time domain is the basis for the algorithms. The algorithms based on unscented Kalman filter, least mean square technique and conventional time domain filtering are reviewed. Experimental results are achieved in coplanar...
A method is introduced for determination of a vector network analyzer's calibration residual errors for measurement of the reflection coefficient. The method utilizes unscented Kalman filtering and spline interpolation time domain techniques. All three residual errors are calculated by processing the measured reflection coefficient of a single verification device, such as an air line terminated with...
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