The antenna introduced in this paper is different from the ordinary reconnaissance radar, which is a passiveantenna receptive system receiving target radar signals.
本文所介绍的天线有别于一般的侦察雷达，是一种无源的接收目标雷达信号的天线接收系统。
2
The Rafale currently uses a passive array antenna for air-to-air and air-to-ground use.
目前，“阵风”战斗机的空空和空地探测使用的是被动阵列天线。
3
Airborne long range battlefield surveillance radar is a new kind of airborne multimode radar with passive phased-array antenna.