Specifications

27
AFR accuracy is comparable to on-board TRL calibration, but much easier
to accomplish.
Measurement example
In the plots below, the green trace is a measurement of a Beatty Standard DUT before AFR
fixture removal. The red trace is the DUT with AFR open-standard fixture removal. The blue
trace is the DUT with AFR thru-standard fixture removal. Fixture mismatch and length is
removed from the DUT measurements. Good correlation is shown between the AFR open- and
thru-standard fixture characterizations.
A relative comparison of various fixture error-correction methods
Beatty Standard DUT
S11 and S21 in frequency domain