7. Glossary

millimeter-wave; onde millimétrique

Electromagnetic wave with a frequency commonly between 30 and 300 GHz.

antenna efficiency

Ratio between the total power radiated by an antenna and the power supplied to it. This parameter is linked to the losses of the dielectric and metallic materials making up the antenna.

dielectric substrate; substrat diélectrique

Insulating or semiconducting material on which the antenna (or material) is printed for dielectric lenses.

reconfigurable radiation pattern of antenna; diagramme de rayonnement d'antenne reconfigurable

The ability of the antenna to change the direction of its radiation pattern by spatially de-pointing it, to modify its angular aperture at mid-power or to present several...