Symmetrical Drop-shaped Ground Penetrating Radar Broadband Antenna
YANG Zhiliang
ZHAO Yubo
MAO Yuru
WANG Yangyang
SUN Xingli
Abstract：Aiming at the problems of low resolution,large volume and narrow frequency band of traditional ground penetrating radar(GPR)which lead to poor detection accuracy and adaptability,the paper designs a symmetrical water-drop-shaped GPR mi-crostrip antenna,presents the structure and design process of the antenna,and simulates the antenna through HFSS.To address the weak directivity of the antenna,the directivity is enhanced by adding a five-sided back plate.Finally,the performance of the anten-na model is simulated in a sandy soil environment and compared with that in a vacuum environment.The results show that the abso-lute bandwidth of the symmetrical water-drop-shaped antenna can reach to 80 MHz,the maximum gain is 3.1 dB,and the front-to-back ratio of the antenna pattern is 5.1.It can be seen that the designed antenna is very suitable as a GPR antenna for un-derground pipeline line detection.
Keywords：ground penetrating radarsymmetrical drop-shaped antennamicrostrip antennaantenna patternreturn loss
Publication Date：2025-05-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 87-92 )