Title :
Adaptive bow-tie antenna with variable current distribution
Author :
Yarovoy, A.G. ; Schukin, A.D. ; Kaploun, I.V. ; Ligthart, L.P.
Author_Institution :
Int. Res. Centre for Telecommun.-Transmission & Radar, Delft Univ. of Technol., Netherlands
Abstract :
In this work we have demonstrated the possibility to adapt a GPR antenna to different environments using electrically controlled reactive loads. It was shown that it is possible to vary the antenna transfer function spectrum as well as the main pulse amplitude and the antenna ringing. It is suggested to use an antenna with controlled internal resonances for post-processing synthesis of pulses with special waveforms to suppress parasitic reflections from the environment.
Keywords :
UHF antennas; adaptive antenna arrays; broadband antennas; ground penetrating radar; interference suppression; radar antennas; radar interference; 0.37 GHz; 0.79 GHz; 1.03 GHz; GPR antenna; UWB antennas; adaptive antennas; antenna flairs; antenna ringing; antenna transfer function spectrum; current distribution; electrically controlled reactive loads; internal resonances; main pulse amplitude; narrow-band antennas; parasitic reflections; post-processing synthesis; Adaptive arrays; Antenna feeds; Current distribution; Diodes; Dipole antennas; Loaded antennas; Phased arrays; Radar antennas; Ultra wideband antennas; Ultra wideband radar;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016135
