Modified ultrawide-bandwidth dielectric rod antenna for ground penetrating radar applications

Chi-Chih Chen; Kishore Rama Rao; Robert Lee

doi:10.1117/12.383478

27 April 2000 Modified ultrawide-bandwidth dielectric rod antenna for ground penetrating radar applications

Chi-Chih Chen, Kishore Rama Rao, Robert Lee

Proceedings Volume 4084, Eighth International Conference on Ground Penetrating Radar; (2000) https://doi.org/10.1117/12.383478
Event: 8th International Conference on Ground Penetrating Radar, 2000, Gold Coast, Australia

Abstract

An ultra-wide bandwidth (UWB) dielectric rod antenna modified from its previous version developed by Chen (1999) is presented. Such antenna is useful in detecting shallowly buried targets, such as anti-personnel (AP) mines. Broad bandwidth electromagnetic energy is launched, guided and radiated from a dielectric rod that has a constant cross- section area and low-loss permittivity except at the end where the permittivity is gradually reduced to match to that of free air. The electromagnetic waves radiated out from rod end have field behavior similar to that of a Hertzian dipole. The low antenna clutter and weak antenna-ground interaction are two unique features. Its near-field radiation properties are investigated using three-dimensional finite difference time domain (FDTD) simulation technique. Some measurement and numerical simulation results are also included.

Citation Download Citation

Chi-Chih Chen, Kishore Rama Rao, and Robert Lee "Modified ultrawide-bandwidth dielectric rod antenna for ground penetrating radar applications", Proc. SPIE 4084, Eighth International Conference on Ground Penetrating Radar, (27 April 2000); https://doi.org/10.1117/12.383478

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