Higher-order finite-difference schemes for electromagnetic radiation, scattering, and penetration .2. Applications

Author

Georgakopoulos, Stavros V. ; Birtcher, Craig R. ; Balanis, Constantine A. ; Renaut, R.A.

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ

Volume

44

Issue

2

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

92

Lastpage

101

Abstract

For pt.1 see ibid., vol.44, no.1, p.134-42 (2002). Higher-order schemes for the finite-difference time-domain (FDTD) method - in particular, a second-order-in-time, fourth-order-in-space method, FDTD(2,4) - are applied to a number of problems. The problems include array analysis, cavity resonances, antenna coupling, and shielding effectiveness case studies. The latter includes a simplified model of a commercial airliner, with a personal electronic device operating in the vicinity of the aircraft. The FDTD computations are also compared to measured data for this case. Incorporating PEC and other types of material boundaries into higher-order FDTD is problematic; a hybrid approach using the standard FDTD method in the proximity of the boundary is proposed, and shown to perform well

Keywords

aircraft; antenna arrays; cavity resonators; conductors (electric); electromagnetic coupling; electromagnetic interference; electromagnetic shielding; electromagnetic wave scattering; finite difference time-domain analysis; monopole antennas; EMI; FDTD(2,4); PEC; aircraft; antenna coupling; array analysis; cavity resonances; commercial airliner; electromagnetic interference; electromagnetic penetration; electromagnetic radiation; electromagnetic scattering; finite ground plane; fourth-order-in-space method; higher-order finite-difference; hybrid approach; material boundaries; monopole antennas; perfect electric conductor; personal electronic device; radio-frequency signals; second-order-in-time method; shielding effectiveness; standard FDTD method; Aerospace electronics; Electromagnetic radiation; Electromagnetic scattering; Finite difference methods; Mathematics; Pattern analysis; Phased arrays; Resonance; Time domain analysis; USA Councils;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/MAP.2002.1003639

Filename

1003639