Title :
A modified bow-tie antenna design for step-frequency subsurface radar applications
Author :
Maksimovitch, Ye. ; Mikhnev, V. ; Vainikainen, Pertti
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Minsk, Belarus
Abstract :
A modified bow-tie antenna for step-frequency ground penetrating radar is proposed. The flared dipole arm consists of a metal sector gradually converting into a strip-slot structure loaded by resistive films. For the comparison, a TEM horn is used. The synthesized pulse waveform is computed from the frequency-domain data using a calibration procedure and inverse Fourier transform. The antenna performance is demonstrated in several examples of detecting small shallowly buried subsurface targets.
Keywords :
Fourier transforms; calibration; dipole antennas; ground penetrating radar; radar antennas; antenna performance; calibration procedure; flared dipole arm; frequency-domain data; ground penetrating radar; inverse Fourier transform; metal sector; modified bow-tie antenna design; resistive films; step-frequency subsurface radar; strip-slot structure; subsurface target detection; synthesized pulse waveform; Ground penetrating radar; Helium; Loaded antennas; Microwave antennas; Phase change materials; Radar antennas; Ultra wideband antennas;
Conference_Titel :
Microwave and Telecommunication Technology, 2004. CriMico 2004. 2004 14th International Crimean Conference on
Print_ISBN :
966-7968-69-3
DOI :
10.1109/CRMICO.2004.183226
