Title :
A 900MHz shielded bow-tie antenna system for ground penetrating radar
Author :
Guo Chen ; Liu, Richard C.
Author_Institution :
Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
A back-cavity shielded bow-tie antenna system working at 900MHz center frequency for ground-coupled GPR application is investigated numerically and experimentally in this paper. Bow-tie geometrical structure is modified for a compact design and back-cavity assembly. A layer of absorber is employed to overcome the back reflection by omni-directional radiation pattern of a bow-tie antenna in H-plane, thus increasing the SNR and improve the isolation between T and R antennas as well. The designed antenna system is applied to a prototype GPR system. Tested data shows that the back-cavity shielded antenna works satisfactorily in the 900MHz GPR system.
Keywords :
UHF antennas; antenna radiation patterns; bow-tie antennas; ground penetrating radar; radar antennas; receiving antennas; transmitting antennas; GPR system; R antennas; T antennas; back-cavity shielded antenna; back-cavity shielded bow-tie antenna system; bow-tie geometrical structure; frequency 900 MHz; ground penetrating radar; omni-directional radiation pattern; Ground penetrating radar; Radar antennas; Ground-penetrating radar (GPR); Ultra-Wideband (UWB); back-cavity; bow-tie;
Conference_Titel :
Ground Penetrating Radar (GPR), 2010 13th International Conference on
Conference_Location :
Lecce
Print_ISBN :
978-1-4244-4604-9
Electronic_ISBN :
978-1-4244-4605-6
DOI :
10.1109/ICGPR.2010.5550125
