EM Waves Propagation Characteristics Based on Modified Dielectric Constant Model in Nonuniform Weakly Ionized Dusty Plasma

Wang, Zhaoying; Guo, Lixin; Li, Dan

doi:10.1109/tps.2019.2922195

Cited by 9 publications

(4 citation statements)

References 20 publications

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“…According to some recently published literature, the electron density of the whole dusty plasma slab is also considered to be inhomogeneous and obeys the double exponential distribution [ 21 ]. The dust particles concentration are set to be uniform in the dusty plasma [ 17 ]. In addition, the expression of electron density in shown in Equation ( 1 ):

…”

Section: Propagation Model and Formulasmentioning

confidence: 99%

“…Motie and Bokaeeyan analyzed the dust charging process in the presence of radio frequency discharge on low pressure and fully ionized plasma for weak and strong discharge’s electric field, respectively [ 16 ]. Moreover, much research on the propagation and scattering properties of EM waves in dusty plasma has been reported [ 17 , 18 , 19 ]. Cao et al used the propagation matrix method to study the propagation characteristics of THz waves in inhomogeneous dusty plasma, and the effects of the incidence angle, the density and radius of the dust particles have been discussed [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method

Rao

Wang

et al. 2021

Sensors

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The propagation characteristics of terahertz (THz) waves incident vertically into inhomogeneous and collisional dusty plasma with a ceramic substrate are studied using the scattering matrix method (SMM). The effects of the incident wave frequency and plasma parameters, such as the maximal electron density, dust particle density, dust particle radius and collision frequency, on the reflectance and transmittance of THz waves in the dusty plasma are discussed. In addition, the differences of the propagation properties in the dusty plasma, with and without ceramic substrate, are analyzed. Meanwhile, the differences of the propagation properties in dusty plasma and common plasma, respectively, with ceramic substrate are also compared. Simulation results show that the substrate and dust particles have significant influence on the propagation characteristics of THz wave in plasma sheath. Finally, the transmission increases with the increase of electron density, dust density, dust particle radius and collision frequency.

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…”

Section: Propagation Model and Formulasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method

Rao

Wang

et al. 2021

Sensors

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show abstract

“…is can be attributed to the fact that increasing the density and radii of the dust particles increases the number of collisions in the dusty plasma, meaning that more of the energy of the THz wave is absorbed, and the transmittance is reduced [24]. Moreover, due to the charging effect of the dust particles in the plasma, increasing the density and radius of the dust particles also means that the energy of the THz wave is absorbed.…”

Section: Effect Of Dust Particlesmentioning

confidence: 99%

Study of the Propagation Characteristics of Terahertz Waves in a Collisional and Inhomogeneous Dusty Plasma with a Ceramic Substrate and Oblique Angle of Incidence

Rao

Wang

et al. 2021

International Journal of Antennas and Propagation

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In this paper, the propagation properties of a terahertz (THz) wave in a collisional and inhomogeneous dusty plasma with a ceramic substrate and oblique angle of incidence are studied using the scattering matrix method. The influence of the various corresponding parameters, such as the frequency of the THz wave, angle of incidence, electron density, radius and density of the dust particles, and the collision frequency, on the absorbance and transmittance is calculated. The results of the simulation indicate that an increase in the wave frequency increases the transmittance and decreases the absorbance. Moreover, the absorbance of a THz wave in a dusty plasma with a ceramic substrate increases with an increase in the incident angle, maximum electron density, coefficient of steepness, density and radius of the dust particles, and collision frequency. These results provide an important theoretical basis for the problem of communication blackout between ground and spacecraft.

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“…Zhang et al [10] used a two-dimensional FDTD model to simulate EM wave propagation properties in the plasma sheath. Wang et al [11] modified the dielectric constant model of weakly ionized dust plasma and analyzed the influence of dust parameters on EM wave propagation by the scattering matrix method (SMM). Zhang et al [12] analyzed the absorption, transmittance, and reflectance of terahertz waves in magnetized plasma by using the layered SMM.…”

Section: Introductionmentioning

confidence: 99%

Research on phase shift characteristics of electromagnetic wave in plasma

Wang¹,

Guo²,

Li³

2021

Plasma Sci. Technol.

Self Cite

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The phase shift characteristics reflect the state change of electromagnetic wave in plasma sheath and can be used to reveal deeply the action mechanism between electromagnetic wave and plasma sheath. In this paper, the phase shift characteristics of electromagnetic wave propagation in plasma were investigated. Firstly, the impact factors of phase shift including electron density, collision frequency and incident frequency were discussed. Then, the plasma with different electron density distribution profiles were employed to investigate the influence on the phase shift characteristics. In a real case, the plasma sheath around the hypersonic vehicle will affect and even break down the communication. Based on the hypersonic vehicle model, we studied the electromagnetic wave phase shift under different flight altitude, speed, and attack angle. The results indicate that the phase shift is inversely proportional to the flight altitude and positively proportional to the flight speed and attack angle. Our work provides a theoretical guidance for the further research of phase shift characteristics and parameters inversion in plasma.

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EM Waves Propagation Characteristics Based on Modified Dielectric Constant Model in Nonuniform Weakly Ionized Dusty Plasma

Cited by 9 publications

References 20 publications

Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method

Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method

Study of the Propagation Characteristics of Terahertz Waves in a Collisional and Inhomogeneous Dusty Plasma with a Ceramic Substrate and Oblique Angle of Incidence

Research on phase shift characteristics of electromagnetic wave in plasma

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