Affiliations: [a] School of Information Science and Engineering, Ningbo
University, Ningbo, Zhejiang, China
Correspondence:
[*]
Corresponding author: Jian Wang, School of Information Science
and Engineering, Ningbo University, Ningbo 315211, Zhejiang, China. Tel.: +86
0574 8760 9496; E-mail: wangjian1@nbu.edu.cn
Abstract: Electromagnetic responses of a metallic conical frustum cabin with
one coaxial feeding monopole antenna, illuminated by an intentional
electromagnetic pulse (IEMP), are studied in this paper. There are several
slots on the cabin wall with different sizes and orientations. The mathematical
treatment is based on novel hybrid finite difference time domain (FDTD) method,
where coaxial feeding, transfer impedance coupling and thin wire antenna models
are integrated together for handling such a complex three-dimensional (3D)
composite structure. The revised antenna port coupling model is verified by
comparing the calculated terminal voltage responses of the coaxial feeding
cable with that of commercial CST Microwave Studio. Parametric studies are
further carried out to show the variations of its terminal voltages for
different IEMP waveforms, incident directions and polarizations.
