TRL and automated E-Cal for PicoVNA 108

Coming soon! TRL and automated E-Cal for PicoVNA 108

Overview

E-Cal for the PicoVNA is almost ready for release! Complete the form opposite to register and be one of the first to hear when it becomes available.

Many owners and users of a vector network analyzer insist upon an automated calibration solution. Some of the benefits are obvious: automation can provide extra speed, efficiency and a simplified process. But did you know that automated VNA calibration can also improve overall calibration quality and even reduce uncertainties or errors?

The PicoVNA 108 achieves calibration automation to full published specification using either male SMA or female SMA E-Cal modules. These are USB-powered and controlled to electronically select the various Short, Open, Load and Through reference standards as they are needed within the calibration process. You simply power the module, make a single connection of the E-Cal standard between the PicoVNA test ports, and then initiate the automated procedure from within the PicoVNA 108 user interface.

TRL and TRM Calibration

In addition, the PicoVNA 108 will support TRL and TRM calibration (through, reflect, line and match, respectively). These calibration mechanisms typically gain favour when needing to measure substrate mounted DUTs, for example, surface-mounted networks or components. The line, match and reflections (shorts or opens) can all be readily fabricated on substrate and at precise on-substrate measurement reference planes, for example surface mount device pins. The PicoVNA 108 will support one or two TRL bands, Open or Short reflection standards and can account for line impedance offset if required. The TRL technique can also achieve very high-precision calibration as a machined air transmission line can be fabricated more precisely than a good match can be measured, certainly at higher frequencies.

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