VSWR to Return Loss

The table below provides a guide to converting between return loss and VSWR, terms used for the same parameter by different users.

It also provides and indication of the maximum positive or negative voltage error that can appear across a load when connected to a perfect source and connecting cable.

Diagram of maximum voltage error with a perfect source/cable

Table comparing VSWR to return loss

Need Help´╝č


Information on software drivers, product comparisons and technical support for our entire product range.


Product Selector

This tool will help you narrow down our offering to get you the correct switch and simulation solution you need.

Try the selector

Resource center

Success storiesproduct videos and more—find the information you need about our switching and simulation.

Resources you need

Worldwide presence

Find support across the globe, with offices and agents in the Americas, Europe and Asia. 

Find local office or agent