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An Antipodal Vivaldi Antenna for a Drone-Mounted Ground Probing Radar

TitleAn Antipodal Vivaldi Antenna for a Drone-Mounted Ground Probing Radar
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2024
AuthorsPisa, S., Pastori F., Cicchetti R., Piuzzi E., Testa O., Pittella E., Cicchetti A., D'Atanasio Paolo, and Zambotti A.
JournalProgress In Electromagnetics Research M
KeywordsAerial vehicle, Antipodal Vivaldi antenna, Compact dimensions, Drones, Geological surveys, Geophysical prospecting, ground penetrating radar, Ground penetrating radar systems, Ground probing radar, High gain, Ice deposit, Operating bandwidth, Radar antennas, Returns loss, Slot antennas, Vivaldi antennas

An antenna operating between 300 MHz and 700 MHz, designed to be used on a ground penetrating radar installed on an Unmanned Aerial Vehicle (UAV) for the exploration and characterization of the buried ice deposits on Mars, is presented. To this end, a lightweight, high-gain Vivaldi antenna having compact dimensions and high operating bandwidth has been taken into consideration. This antenna, equipped with circular-loaded rectangular slots etched on its radiating arms, exhibits improved performance in terms of size, return loss, gain, and fidelity factor with respect to a conventional antipodal Vivaldi antenna. Experimental measurements performed on a prototype of the Vivaldi antenna with slots showed a return loss lower than −12 dB with realized gains between 4 dBi and 6.5 dBi in the 300–700 MHz frequency band. © 2024, Electromagnetics Academy. All rights reserved.


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Citation KeyPisa202453