Anh
Fraunhofer region
far field
far zone
Đức
Fernfeld
Pháp
champ éloigné
zone de Fraunhofer
champ éloigné,zone de Fraunhofer /INDUSTRY-METAL/
[DE] Fernfeld
[EN] Fraunhofer region; far field; far zone
[FR] champ éloigné; zone de Fraunhofer