A new millimeter-wave omnidirectional dielectric rod metallic grating antenna is developed successfully. 研制成功了一种新型金属栅加载毫米波全向天线。
The indoor ceiling omni-directional antenna is usually installed on the ceiling to provide omni-directional coverage indoors. 室内吸顶全向天线一般安装在室内天花上，用作室内的全向覆盖。
