Reflection With External Coupler - Omicron Lab Bode 100 User Manual

Measurement example
For detailed measurement examples using the Gain / Phase measurement mode, please check out
the application notes at www.omicron-lab.com/BodeManualAppNotes. The following application notes
use the Gain / Phase measurement mode:
• DC/DC Converter Stability Measurements
• Bipolar Transistor AC Current Gain Measurement
• Op-Amp measurements
• PSRR Measurement
• And many more...

7.3.3 Reflection with external coupler

The External coupler measurement mode is designed to measure reflection using an external coupler.
This offers the possibility to use an external amplifier and protect the inputs of Bode 100 by using an
external directional coupler.
Calibration
Please note that the external coupler measurement mode requires an impedance calibration (Open,
Short, Load). For more details on how to perform an impedance calibration see
External Coupler or External Bridge measurement
Typical applications
Typical applications for the external coupler measurement mode are:
• Measuring medium-wave antennas.
• Measuring impedance with high-power amplifiers.
Measurement example
For a detailed measurement example using the external coupler measurement mode, please check
out the medium wave antenna measurement application note at
www.omicron-lab.com/BodeManualAppNotes.
48
on page 80.
8.3.2 Calibrating an
OMICRON Lab