FDTD Simulation on Terahertz Waves Propagation Through a Dusty Plasma

Wang, Maoyan; Zhang, Meng; Li, Guiping; Bao-jun, Jiang; Zhang, Xiaochuan; Xu, Jun

doi:10.1088/1009-0630/18/8/02

Cited by 23 publications

(4 citation statements)

References 26 publications

(17 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the THz domain, the FDTD approach had been mostly used to study the wave propagation through various forms of plasma such as unmagnetized plasma slab [195], dusty plasma [196] and time-varying plasma [197] to name a few. Investigation of wave propagation through multi-layer medium structure using FDTD for THz imaging application had been conducted in [198].…”

Section: ) Finite Difference Time Domainmentioning

confidence: 99%

THz Channel Sounding and Modeling Techniques: An Overview

Ghosh

Kim

2023

IEEE Access

View full text Add to dashboard Cite

As the world warms up to the idea of millimeter wave (mmWave) communication and fifth generation (5G) mobile networks, realization slowly dawns that the data rate, latency, throughput, and other performance metrics that are used to assess a new wireless communication technology will not be enough to support the demands of envisioned futuristic applications. Thus there is an eagerness to further climb up the frequency ladder to use the large swathes of available spectrum in the 0.1 − 10 THz band which is expected to act as the key technology enabler to fulfill the requirements of the sixth generation (6G) wireless communication and possibly even beyond. Channel measurement and modeling are crucial to the design and deployment of future wireless communication systems and researchers across the world are putting their best foot forward to accelerate the process. The present article presents comprehensive assimilation of research efforts in the context of THz channel sounding. A detailed overview of the current channel sounding techniques is first introduced followed by their relevance to THz band channel measurement. An in-house novel channel sounder developed for THz band measurement is also briefly introduced in this context. The paper next provides elaborate dissemination of various measurement campaigns in the band of interest followed by the modeling techniques that are available in the literature and are being adopted for the THz band. Post the description of different challenges and future research directions in the context of sounding, measurement, and modeling the article is concluded.

show abstract

Section: ) Finite Difference Time Domainmentioning

confidence: 99%

THz Channel Sounding and Modeling Techniques: An Overview

Ghosh

Kim

2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…This phenomenon is called "blackout". [2] To solve this problem, some strategies have been proposed, including strong static magnetic fields, [3] wave frequency modification, [4] 𝐸 × 𝐵 drift, [5] terahertz (THz) wave, [6][7][8] and so on. However, currently these methods are only theoretically feasible, and have technical limitations in practical application.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the electromagnetic wave propagation in magnetized plasma sheath and practical method for blackout mitigation

Wu 吴,

Zhang 张,

Dong 董

et al. 2024

Chinese Phys. B

View full text Add to dashboard Cite

“Magnetic window” is considered as an effective method to solve the communication blackout issue. COMSOL software package based on the finite element method is utilized to simulate the propagation of right-handed circularly polarized wave in the magnetized plasma sheath. We assume a double Gaussian model of electron density and an exponential attenuation model of magnetic field. The propagation characteristics of right-handed circularly polarized wave are analyzed by the observation of the reflected, transmitted and loss coefficient. The numerical results show that the propagation of right-handed circularly polarized wave in the magnetized plasma sheath varies for different incident angles, collision frequencies, non-uniform magnetic fields and non-uniform plasma densities. We notice that reducing the wave frequency can meet the propagation conditions of whistle mode in the weak magnetized plasma sheath. And the transmittance of whistle mode is less affected by the variation of the electron density and the collision frequency. It can be used as a communication window.

show abstract

“…Another application of FDTD is for the analysis of electric field induction and electron diffraction [11,12]. Meanwhile, industrial FDTD materials are also used to estimate electromagnetic waves in dust plasma [13] and in the telecommunications industry for acoustic and antenna analysis [14,15]. Application 2-dimensional FDTD is required to improve the visualization quality.…”

Section: Introductionmentioning

confidence: 99%

Two Dimensional Simulation of Electromagnetic Waves on Metal Materials Using the FDTD Method

Firdaus

Khoiro

Dzulkiflih

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

It is challenging to picture the physical phenomenon known as electromagnetic wave simulation. The purpose of this work is to model the propagation of electromagnetic waves on a two-dimensional medium. FDTD is a method that is quite relevant to be used in visualizing electromagnetic waves. One can utilise Maxwell's equations to describe discrete electromagnetic waves having TM mode. The simulation is in the form of a Gaussian pulse with the magnetic field H and the electric field E having position and time domains, respectively. The proposed simulation conditions have considered the program's boundary conditions and numerical stability. The differential equation method methodology is used in the FDTD method. The simulation results show that the wave without PML is impeccably reflected, and with PML, the wave is reflected by the material utilized. Materials with high conductivity will make the waves decay and reduce their intensity. This research can be used in the investigation of materials and communication media innovation.

show abstract

FDTD Simulation on Terahertz Waves Propagation Through a Dusty Plasma

Cited by 23 publications

References 26 publications

THz Channel Sounding and Modeling Techniques: An Overview

THz Channel Sounding and Modeling Techniques: An Overview

Characteristics of the electromagnetic wave propagation in magnetized plasma sheath and practical method for blackout mitigation

Two Dimensional Simulation of Electromagnetic Waves on Metal Materials Using the FDTD Method

Contact Info

Product

Resources

About