多频电磁波测井用宽频带有源接收天线  

A Wide Band Active Receiver Antenna for MultiFrequency Electromagnetic Propagation Logging

作　　者：刘海滨[1] 佟文琪[1] 

机构地区：[1]长春地质学院

出　　处：《测井技术》1996年第1期17-20,共4页Well Logging Technology

摘　　要：对负阻抗变换电路与小圆锥螺旋天线相结合，构成的宽频带有源接收天线进行了理论分析，给出了该有源天线稳定工作的条件。结果表明，用该方法设计的有源接收天线具有较宽的频带、较高的灵敏度和较小的尺寸，是多频电磁波测井较理想的接收天线。A wide band active receiving antenna consisting of a small conical helix antennaand a negative impedance change-over circuit is analyzed theoretically in this paper.The condition for stable operation of the active receiving antenna is given. Theanalysis shows that the active receiving antenna designed with this method has awider band, higher sensibility and smaller size. It is a preferable receiving antennafor multi-frequency electromagnetic propagation logging.

关 键 词：电磁波传播测井 天线 接收器 阻抗 测井 

分 类 号：TM827.2[电气工程—高电压与绝缘技术] P631.813[天文地球—地质矿产勘探]