宽带圆极化天线
broadband circularly polarized antenna
宽频带圆极化天线
broadband circularly polarized antenna
γ圆极化轨道
circular polarization tracks
空间伸展三极子天线
spatially stretched tripole
可调偶极高频天线
adjustable dipole HF antenna
复合单极子天线
multiple antenna composed of monopole and SRR
短波水平极化定向天线测向
HF DF of horizontal polarization direction antennas