The dielectric wedge antenna

A new modification of the TEM-horn antenna has been developed for ground-penetrating radar (GPR) applications. The antenna is based on a dielectric wedge, and thus, was named the dielectric wedge antenna. Tapering of the metal flairs has been used to match the antenna to the ground and to reduce the...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2002-10, Vol.50 (10), p.1460-1472
Main Authors: Yarovoy, A.G., Schukin, A.D., Kaploun, I.V., Ligthart, L.P.
Format: Article
Language:English
Subjects:
Antenna theory
Antennas
Dielectrics
Finite difference method
Finite difference methods
Ground penetrating radar
Grounds
Horn antennas
Mathematical analysis
Radar
Radar antennas
Reflector antennas
Tapering
Time domain analysis
Transmitting antennas
Ultra wideband antennas
Wedges
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Summary:A new modification of the TEM-horn antenna has been developed for ground-penetrating radar (GPR) applications. The antenna is based on a dielectric wedge, and thus, was named the dielectric wedge antenna. Tapering of the metal flairs has been used to match the antenna to the ground and to reduce the late-time ringing. The finite-difference time-domain model of the antenna has been created to investigate physical processes within the antenna and to optimize its performance. The dielectric wedge antenna has shown a superior (in comparison with the TEM-horn) performance by radiation in different types of the ground and has been used in a novel antenna configuration within a GPR system, which is dedicated for landmine detection.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2002.803968