Title :
Conformal UWB impulse antenna for pipe telemetry
Author :
Gaetano, Domenico ; Dumoulin, Antoine ; Ammann, Max J. ; McEvoy, Patrick
Author_Institution :
Antenna & High Freq. Res. Centre, Dublin Inst. of Technol., Dublin, Ireland
Abstract :
The fidelity factor of a directional UWB antenna has been investigated for communicating telemetry data from a pipe that can contain liquids. The impedance match and the radiation patterns the antipodal Vivaldi design have been optimized for a 3.1-10.6 GHz bandwidth. The mechanical properties of the substrate material permit limited flexing and in this case, it is curved around the transverse axis of a 56 mm diameter pipe. An initial frequency domain analysis is extended with the study of a 7.5 GHz bandwidth pulse centred at 6.85 GHz. The fidelity factor of the antenna in a free-space environment was measured for comparison with the pipe-mounted setup. The proximity of the antenna and pipe is studied for signal degradation, as is the performance for empty and water-filled conditions.
Keywords :
antenna radiation patterns; conformal antennas; directive antennas; frequency-domain analysis; pipes; telemetry; ultra wideband antennas; antipodal Vivaldi design; bandwidth 3.1 GHz to 10.6 GHz; conformal UWB impulse antenna; directional UWB antenna; empty condition; fidelity factor; free-space environment; frequency domain analysis; impedance match; mechanical properties; pipe telemetry; pipe-mounted setup; radiation patterns; signal degradation; size 56 mm; substrate material; water-filled condition; Antenna measurements; Antenna radiation patterns; Directive antennas; Frequency measurement; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2011 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4577-1014-8
Electronic_ISBN :
978-1-4577-1015-5
DOI :
10.1109/LAPC.2011.6114105
