Title :
Computational electromagnetic technique for broadband analysis of microstrip antennas
Author :
Mangoud, M.A. ; Abd-Alhameed, R.A. ; Excel, P.S. ; Aboul-Dahab, M.
Author_Institution :
Arab Acad. for Sci. & Technol., Egypt
Abstract :
Broadband analysis of a microstrip patch antenna on a finite substrate is investigated using the Finite Difference Time Domain (FDTD) method. The effects of varying the ground and dielectric size against the return loss at the input port and the far fields are discussed. Two different ways of feeding the antenna are addressed. The problem space size requirements of the FDTD method are presented.. A thin, wire code that,includes the wire radius of the coaxial feed cable is used. The frequency response of several microstrip patch antennas is analysed over wide bandwidths, using Gaussian pulses with a total bandwidth of 20 GHz. The results are in good agreement with measurements.
Keywords :
electrical engineering computing; finite difference time-domain analysis; microstrip antennas; microwave antennas; 20 GHz; FDTD method; Gaussian pulses; SHF; antenna feeding; bandwidth; broadband analysis; coaxial feed cable; computational electromagnetic technique; dielectric size; far fields; finite difference time domain method; frequency response; ground size; input port; microstrip patch antenna; return loss; space size; thin wire code; wire radius; Broadband antennas; Computational electromagnetics; Dielectric losses; Dielectric substrates; Electromagnetic analysis; Finite difference methods; Microstrip antennas; Patch antennas; Time domain analysis; Wire;
Conference_Titel :
Radio Science Conference, 2002. (NRSC 2002). Proceedings of the Nineteenth National
Print_ISBN :
977-5031-72-9
DOI :
10.1109/NRSC.2002.1022617
