Analysis and characterization of ultrawide-band scalar volume sources and the fields they radiate. II. Square pulse excitation

Author

Marengo, Edwin A. ; Devaney, Anthony J. ; Heyman, Ehud

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

Volume

46

Issue

2

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

243

Lastpage

250

Abstract

For pt.I see ibid., vol.45, no.7, p.198-1106, 1997. In pt.I we studied transient radiation from scalar collimated volume source distributions subjected to impulsive excitation. In this paper, we extend our analysis and results to the case of nonimpulsive excitation, paying special attention to the parameterization of the radiation pattern of three-dimensional (3-D) ellipsoid source distributions driven by square pulses of finite duration. We study the role both of the source´s space distribution and of the square pulse duration on the generation of well-collimated short-pulse fields. In particular, we explore the source´s angular and range resolutions as functions of the transverse and longitudinal dimensions of the source (for a fixed source volume) and of the pulse duration

Keywords

Radon transforms; electromagnetic fields; electromagnetic wave propagation; integral equations; 3D ellipsoid source distributions; EM wave propagation; Radon transform integral; angular resolution; collimated short-pulse fields; finite duration square pulses; fixed source volume; impulsive excitation; longitudinal dimension; nonimpulsive excitation; radiated fields; radiation pattern; range resolution; scalar collimated volume source distributions; source space distribution; square pulse duration; transient radiation; transverse dimension; ultrawide-band scalar volume sources; Antenna arrays; Collimators; Optical arrays; Optical control; Optical pulses; Pattern analysis; Photoconductivity; Pulse generation; Transient analysis; Voltage control;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.660969

Filename

660969