Title :
FDTD analysis of wide-band circular and annular-ring patch antennas
Author :
Mahmoud, Ahmed N. ; Elrazzak, Maher M Abd ; Mitkees, Abd A Elaziz ; Elmikati, Hamdi A.
Author_Institution :
Fac. of Eng., Mansoura Univ., El-Mansoura, Egypt
Abstract :
A finite-difference time-domain (FDTD) analysis of gap-coupled circular patch antennas (GCCPA) on isotropic substrates is presented. The return loss, the input impedance and the radiation pattern are determined. Similar analysis is performed for the stacked-gap coupled (SGC) annular-ring microstrip antennas. About 40% -10 dB bandwidth is achieved which is eight times more than that of the single annular-ring antenna. The results obtained by the FDTD method are found to be in good agreement with the published data.
Keywords :
antenna radiation patterns; broadband antennas; finite difference time-domain analysis; microstrip antennas; FDTD analysis; bandwidth; gap-coupled circular patch antennas; input impedance; isotropic substrates; radiation pattern; return loss; stacked-gap coupled microstrip antennas; wide-band annular-ring patch antennas; wide-band circular patch antennas; Bandwidth; Broadband antennas; Feeds; Finite difference methods; Impedance; Microstrip antennas; Patch antennas; Probes; Receiving antennas; Time domain analysis;
Conference_Titel :
Radio Science Conference, 2002. (NRSC 2002). Proceedings of the Nineteenth National
Print_ISBN :
977-5031-72-9
DOI :
10.1109/NRSC.2002.1022618
