Time domain version of the uniform GTD

Author

Veruttipong, Thavath Watt

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

38

Issue

11

fYear

1990

fDate

11/1/1990 12:00:00 AM

Firstpage

1757

Lastpage

1764

Abstract

The uniform geometrical theory of diffraction (UTD) solutions can be inversely transformed analytically to obtain a time-domain version of the UTD. The time-domain solutions are valid in the early time period where an observation time t is close to the time after the arrival of the first diffracted wavefront. Comparisons with GTD (geometrical theory of diffraction) and also with available rigorous results (J.B. Keller and A. Blank, 1951) reveal that the UTD solutions are accurate for substantial early time periods while the GTD (Keller and Blank) results are valid for very early time periods

Keywords

electromagnetic wave diffraction; time-domain analysis; UTD; electromagnetic wave diffraction; perfectly conducting wedge; time-domain solutions; uniform GTD; uniform geometrical theory of diffraction; Closed-form solution; EMP radiation effects; Electromagnetic diffraction; Electromagnetic scattering; Electromagnetic transients; Helium; Light scattering; Physical theory of diffraction; Radar scattering; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.102736

Filename

102736