Fully automated large form factor (2′ X 3′) four-port differential 20 Ghz vector network analyzer test system with real time link characterization
D. J. Schraufnagel, Bart O. McCoy, W. H. Fjerstad, Robert W. Techentin, Dan Johns, Barry K. Gilbert, Erik S. Daniel · Conference record (1995) - Autotestcon/Conference record - Autotestcon · 2007
We present the hardware, software, and operational details of a fully automated robotic flying head tester capable of measuring 4-port S-parameters on large (up to 2'times3') printed wiring boards (PWBs). The system features real-time complex compliance testing based on frequency domain analysis, time domain analysis, and/or a Fourier-transform-based technique enabling very rapid time domain link simulation of measured nets in a complete system environment. The system is equipped with a flexible, compliant-pin, differential probe design that supports frequencies up to 6 GHz. The system employs a corresponding SOLT-based calibration method that places the calibration references plane at the probe tips.