An underground telemetry system having an antenna system (10) having at least one metallic radiating element (13) having a single or a dual top loaded folded monopole configuration and disposed within a metallic housing (11) and having RF electronics to self-calibrate and tune the input impedance of the antenna elements (13).
申请公布号
WO2005031913(A3)
申请公布日期
2005.10.27
申请号
WO2004US30402
申请日期
2004.09.16
申请人
GAS RESEARCH INSTITUTE;DU TOIT, LEENDERT, JOHANNES;LEHMENSIEK, ROBERT
