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Analysis of Terahertz Wave on Increasing Radar Cross Section of 3D Conductive Model

Authors :
Yangan Zhang
Xia Zhang
Xin Yan
Panpan Wang
Hongyao Liu
Jiali Wu
Source :
Electronics, Volume 10, Issue 1, Electronics, Vol 10, Iss 74, p 74 (2021)
Publication Year :
2021
Publisher :
Multidisciplinary Digital Publishing Institute, 2021.

Abstract

Enhancing the frequency band of the electromagnetic wave is regarded as an efficient way to solve the communication blackout problem. In this paper, frequency of incident wave is raised to Terahertz (THz) band and the radar cross section (RCS) of the three-dimensional conductive model is calculated and simulated based on the Runge&ndash<br />Kutta Exponential Time Differencing&ndash<br />Finite Difference Time Domain method (RKETD-FDTD). Interaction of THz wave and magnetized plasma sheath is discussed. Attenuations in incident wave frequencies of 0.34 THz and 3 GHz and different plasma densities are analyzed. The monostatic RCS is used to compare the penetration in different incident wave frequencies while the bistatic RCS is fixed on 0.34 THz to study its characteristics. The simulation result has almost the same RCS as that of the model without coating plasma when the frequency of incident wave reaches 0.34 THz. The advantages of THz wave at 0.34 THz on increasing RCS and reducing the attenuation are demonstrated from different aspects including polarizations, incident angles, magnetization and anisotropy of plasma, thickness of plasma, scan planes and inhomogeneous distribution of plasma. It can be concluded that 0.34 THz has unique advantages in increasing the radar cross section and can be applied to solve the problem of communication interruption.

Details

Language :
English
ISSN :
20799292
Database :
OpenAIRE
Journal :
Electronics
Accession number :
edsair.doi.dedup.....0ba466f9542dc17a453d868afa086e0a
Full Text :
https://doi.org/10.3390/electronics10010074