Title :
Novel shapes of Vivaldi antenna for ground pentrating radar (GPR)
Author :
Elsheakh, D.M. ; Abdallah, E.A.
Author_Institution :
Microstrip Dept., Electron. Res. Inst., Cairo, Egypt
Abstract :
Novel planar Vivaldi antenna with better performance compared to conventional TEM horn antenna is introduced. An exponential tapered slot edge (TSE) structure is employed. Electromagnetic band gap structure as seven pair of loop or square shaped defected ground structure is added to the ground antenna plane. The proposed shape has the advantage of extending the low-end bandwidth limit due to improving the antenna matching especially at low frequency and reduced the electrical length of the antenna by 45% compared to the original antenna size.
Keywords :
ground penetrating radar; horn antennas; photonic band gap; radar antennas; slot antennas; GPR; TEM horn antenna; TSE structure; Vivaldi antenna; antenna matching; electrical length; electromagnetic band gap structure; exponential tapered slot edge; ground antenna plane; ground pentrating radar; low end bandwidth; novel planar Vivaldi antenna; novel shapes; square shaped defected ground structure; Antenna theory; Europe; Geometry; Ground penetrating radar; Integrated circuits; Antenna; defected ground structure; expontial tapering slot; planar Vivalidi;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
