beam-angle-between-half-power-points

英 ['biːm'æŋɡlbɪtw'iːnh'ɑːfp'aʊərp'ɔɪnts] 美 ['biːm'æŋɡlbɪtw'iːnh'ɑːfp'aʊərp'ɔɪnts]

• 半功率点间的束夹角