5. Measurements and applications

5.1 Measurement of dispersion parameters

Figure 7 shows the basic structure of a 6-port broadband vector network analyzer designed at the French national metrology laboratory LNE . It consists of two 6-port networks, fed by a radio-frequency signal generated by a broadband synthesizer. This amplified and filtered signal is applied to a power divider whose two outputs are in phase quadrature. The whole system can be modulated according to the operating frequency band, itself limited by the bandwidth...