Title :
High accuracy FDTD analysis of short dipole antenna by utilizing a quasi-static approximation
Author :
Pongpaibool, Pornanong ; Uno, Toru ; Sato, Hiroyuki
Author_Institution :
Fculty of Eng., Tokyo Univ. of Agric. & Technol., Japan
fDate :
Oct. 28 2003-Nov. 1 2003
Abstract :
This paper proposes a technique for improving the accuracy of the finite difference time domain (FDTD) method for an analysis of a short dipole antenna. The improvement is achieved by incorporating a quasi-static field behavior into the FDTD update equations of both Faraday´s and Ampere´s laws. A closed form of the quasi-static field is obtained from a low frequency limit of a sinusoidal current distribution. The effectiveness of the modified algorithm is tested by comparing the results with the method of moment (MoM).
Keywords :
approximation theory; current distribution; dipole antennas; finite difference time-domain analysis; method of moments; Ampere law; Faraday law; finite difference time domain method; method of moment; quasi-static approximation; short dipole antenna; sinusoidal current distribution; Current distribution; Dipole antennas; Electromagnetic fields; Finite difference methods; Frequency; Integral equations; Magnetic fields; Message-oriented middleware; Moment methods; Time domain analysis;
Conference_Titel :
Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 6th International SYmposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-7831-8
DOI :
10.1109/ISAPE.2003.1276784
