Measurement comparison up to 65 GHz in coaxial 1.85 mm line

A measurement comparison of scattering parameters has been carried out between four national metrology laboratories in coaxial line using 1.85 mm precision connectors at frequencies between 100 MHz and 67 GHz. Twelve devices have been measured: two pairs of short-circuits, a pair of open-circuits, a pair of matched loads, a pair of mismatched loads, a male-to-female adaptor and a T-checker. The National Physical Laboratory (United Kingdom) acted as the pilot laboratory for the comparison.