METHOD FOR MEASURING THE RESIDUAL SYSTEM DIRECTIVITY AND/OR THE RESIDUAL SYSTEM PORT IMPEDANCE MATCH OF A SYSTEM-CALIBRATED VECTOR NETWORK ANALYSER

摘要

A method for measuring the effective direct of a measurement of the drawings is a gate (m) of a system calibrated vector network analyzer (n) at the output short-circuited by switching on a toothed - air line (l) and measurement of the complex reflection coefficients, at the input of this toothed - air line (l) to a sequence of measured points within a predetermined frequency range,characterized by the,that the sequence of measured complex reflection coefficients, - a discrete fourier transformation is subjected to,that from the resulting spectrum of the baseband is filtered out andthat by subsequent inverse fourier - inverse transformation the sequence of effective directivity - values is obtained (formula 24).