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IJEETC 2023 Vol.12(6): 405-410
doi: 10.18178/ijeetc.12.6.405-410

Design and Experimental Evaluation of a Printed Monopole Antenna for GPR Applications

Abderrezak Khalfallaoui1,*, Abdelhalim Chaabane1, and Abdesselam Babouri2
1. Laboratoire des Télécommunications-LT, Université 8 Mai 1945 Guelma, BP 401, Guelma 24000, Algeria
2. Laboratoire de Génie Électrique de Guelma-LGEG, Université 8 Mai 1945 Guelma, BP 401, Guelma 24000, Algeria

Manuscript received May 12, 2023; revised July 6, 2023; accepted July 24, 2023.

Abstract—In this paper, a printed monopole antenna is designed and experimentally evaluated for Ground Penetrating Radar (GPR) applications. The antenna resonates at two narrow frequency bands centered at 0.5 GHz and 2 GHz. Four stages are used to achieve the final model, which is based on a rectangular patch, a simple microstrip feed line, and a reduced ground plane. The proposed antenna consists of a simple patch with notches and a quarter-wavelength feed line. The introduced notches help to reduce the conductor losses and decrease the weight of the design. The antenna prototype is fabricated on a low-cost FR-4 epoxy substrate with dimensions of 17.55 cm3, using the LPKF S103 laser printer, and then measured with the R&S®ZNB Vector Network Analyzer. The experimental results demonstrate that the operating bands range between 0.48–0.52 GHz (8%) and 1.94–2.04 GHz (5.02%). The antenna exhibits good radiation patterns with a reasonable gain of 1.5/2.6 dBi and a high radiation efficiency of 97/78% at the two resonating frequencies 0.5/2 GHz, respectively. To validate the usefulness of the designed antenna for GPR applications, a penetrability test is conducted through a concrete separator wall. The electric field probe HZ551 is used to receive the electromagnetic waves behind the obstacle, and the power received by the probe is measured with the GSP-730 spectrum analyzer. The obtained results confirm that the proposed model performs well in the UHF band at 0.5 GHz and 2 GHz, with a high level of penetrability.

Index Terms—Printed monopole antenna, narrow frequency bands, dual band, Ground Penetrating Radar (GPR)

Cite: Abderrezak Khalfallaoui, Abdelhalim Chaabane, and Abdesselam Babouri, "Design and Experimental Evaluation of a Printed Monopole Antenna for GPR Applications," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 12, No. 6, pp. 405-410, November 2023. doi: 10.18178/ijeetc.12.6.405-410

Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.