-
f Analysis of characteristics of slot and dipole antennas of georadar with a resistive material
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 5th EEGS-ES Meeting, Sep 1999, cp-35-00067
- ISBN: 978-94-6282-119-4
Abstract
When a georadar is working in a tunnel, reflections from metallic mechanisms may be a serious interference. Therefore it is important to enlarge “front to back” ratio of antennas. A spacing between the antenna and the ground surface, which may be due to roughness of the surface, usually diminishes the front to back ratio. A placing of deformable resistive material into the spacing, as proposed by A.G.Chernokalov, increases the front to back ratio.