The modelling of a Yagi-Uda array antenna using the DGF-FDTD method

Author

Ma, W. ; Rayner, M. ; Parini, C.

Author_Institution

Dept. of Electron. Eng., Univ. of London, UK

Volume

3

fYear

2003

fDate

22-27 June 2003

Firstpage

780

Abstract

A new discrete Green´s function formulation of the finite difference time domain (DGF-FDTD) method has been developed which expresses the field response as a convolution of the current sources and the impulse response (which is referred to as the discrete Green´s function) of the FDTD equation system. DGF-FDTD avoids the need for computation of free space nodes and absorbing boundary conditions. The method has been demonstrated by its application to a simple Yagi-Uda antenna with an efficiency comparable to the method of moments, which most of the time domain methods lack.

Keywords

Green´s function methods; Yagi antenna arrays; antenna theory; finite difference time-domain analysis; transient response; DGF-FDTD method; Yagi-Uda antenna array; current source convolution field response; discrete Green´s function; finite difference time domain method; impulse response; Antenna arrays; Boundary conditions; Convolution; Electromagnetic radiation; Electromagnetic scattering; Finite difference methods; Green function; Magnetic fields; Partial differential equations; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1220027

Filename

1220027