Early-time high-altitude electromagnetic pulse environment (E1) simulation with a bicone-cage antenna

Author

Mao Congguang ; Zhou Hui ; Chen Weiqing ; Cui Zhitong ; Sun Dongyang

Author_Institution

Northwest Inst. of Nucl. Technol., Xian, China

Volume

10

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

12

Lastpage

18

Abstract

The simulation of the early-time High-altitude Electromagnetic Pulse (HEMP) environment (E1) with bicone-cage antenna in free space requires utilization of the spherical wave to reproduce the boundless plane wave. The transient radiation of the antenna above the lossy ground is computed using the Finite-Difference Time-Domain (FDTD) method. The determining factors of the field waveform are explored and analysed on the basis of the physical evolution process of the transient radiation. The typical waveform of the electric field and the field distribution characteristics, both of which are important for HEMP simulator design and the effect tests, are presented. The study indicates that the simulation should be analysed from the perspective of both environment building and simulator applications.

Keywords

conical antennas; electric fields; finite difference time-domain analysis; E1 simulation; FDTD method; HEMP simulator design; bicone-cage antenna; boundless plane wave; early-time high-altitude electromagnetic pulse environment simulation; effect tests; electric field; environment building; field distribution characteristics; finite-difference time-domain method; physical evolution process; simulator applications; transient radiation; Antennas; EMP radiation effects; Electric fields; Finite difference methods; Reflection; Time-domain analysis; Transient analysis; E1; EMP; FDTD; HEMP; bicone-cage antenna; simulator;

fLanguage

English

Journal_Title

Communications, China

Publisher

ieee

ISSN

1673-5447

Type

jour

DOI

10.1109/CC.2013.6570795

Filename

6570795