Título: Improved, user-friendly RF&MW calibration techniques for calibration laboratories and production environments. Reducing calibration time & uncertainties by using known, characterized standards.
Resumen: With frequencies getting higher - and specifications to be met getting tighter it's time to rethink some procedures. When it comes to the MW frequency range circuit dimensions are getting smaller and smaller - and components very sensitive and expensive. In addition, matching of the individual components involved (UUT as well as the standards used) is "very limited" - and there's usually not much choices ... This causes mismatch uncertainties to play a significant role in the uncertainty budgets - if not the dominating. In lots of instances aiming for smaller uncertainties leads to cumbersome procedures using expensive and sensitive test equipment, which are not suitable for daily use. Mathematical, e.g. vectorial, corrections are often difficult to apply and therefore not used. However, modern T&M instruments offer the possibility of mathematical corrections already incorporated in their FW: the "true" behaviour of the calibration standards or test setup can be modeled to improve the accuracy to a vast extend. This allows using e.g. simpler, more rugged - but characterized standards for daily work, while maintaining high accuracy levels. Operational errors can be minimized the same time - as the whole procedure is simplified. Goal of this presentation is to demonstrate possible solutions in the "classic RF&MW disciplines" Vector Network Analysis, Power (measurement) and Power (sourcing) taylored to improve calibration procedures in Vector Network Analysis, RF Power Measurement and RF Power (Sourcing).
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