Title :
Analysis of compact electromagnetic anechoic chamber performance using finite difference time domain methods
Author :
Luebbers, R. ; Steich, D. ; Ryan, D. ; Kunz, K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
The feasibility of modeling compact range performance using the FDTD (finite difference time domain) method is discussed. The advantages of the FDTD method, such as excitation waveform, material, and geometric generality are considered. The limitations, including staircasing errors (which can be reduced or eliminated at the expense of increased computation) and a maximum computation frequency based on computer resource limitations, are also discussed. An example of the resolution that can be obtained using 864,000 FDTD cells (suitable for workstation computations) to model a compact range in two dimensions is presented
Keywords :
anechoic chambers; difference equations; electromagnetic fields; FDTD cells; compact electromagnetic anechoic chamber; compact range performance; electromagnetic fields; excitation waveform; finite difference time domain methods; geometric generality; maximum computation frequency; resolution; staircasing errors; Anechoic chambers; Conducting materials; Conductors; Dielectric losses; Electromagnetic analysis; Finite difference methods; Frequency; Performance analysis; Shape; Time domain analysis;
Conference_Titel :
Southeastcon '91., IEEE Proceedings of
Conference_Location :
Williamsburg, VA
Print_ISBN :
0-7803-0033-5
DOI :
10.1109/SECON.1991.147690
