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井眼雷达是探地雷达(GPR,Ground Penetrating Radar)的一种。常规井眼雷达多数采用非方位偶极天线,为准确确定目标的三维位置,一般需通过在多口井眼中布置雷达。如果能使用一种方位井眼雷达,则在单个井筒中就可获得所需三维信息。以前有一种利用电介质控制发射模式并使用机械旋转的背腔式缝隙天线,还有一种在
The borehole radar is one of the ground penetrating radars (GPRs). Conventional borehole radar mostly adopts non-azimuth dipole antenna. In order to accurately determine the three-dimensional position of the target, it is usually necessary to arrange the radar in multiple boreholes. If a borehole radar can be used, the required three-dimensional information is obtained in a single wellbore. In the past there was a back cavity type slot antenna using dielectric control of the transmission mode and using mechanical rotation,