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Wireless Glossary

reflectance

Reflectance is the ratio of power reflected to the incident power at a connector junction or other component or device, usually measured in decibels or dB. Reflectance is stated as a negative value, e.g., -30 dB. A connector that has a better reflectance performance would be a -40 dB connector or a value less than -30 dB. The terms return loss, back reflection and reflectivity are also used synonymously in the industry to describe device reflections, but stated as positive values.

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