Attenuating Broadband Electromagnetic Waves in Dielectric-Barrier Discharge Plasmas

Zhang, Qingchao; Zhao, Hu; Hui, Lin; Tian, Zengyao

doi:10.1109/tps.2019.2956686

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…8,9 Owing to such attributes, it has become a crucial development direction of backscattering intelligent attenuation technology. 10,11 Existing plasma generation methods for backscattering attenuation include ultraviolet photoionization, 12 hollow cathode low pressure discharge, 13 coaxial glow discharge, 14 electric barrier discharge (DBD), 15,16 radio frequency discharge, [17][18][19] and low pressure mercury vapor discharge (fluorescent lamps or ultraviolet ARTICLE pubs.aip.org/aip/adv lamps). 20,21 Among them, the low pressure mercury vapor discharge mode has several advantages, such as low power consumption, large plasma quantity, sustained stable maintenance, mature technology, and low price.…”

Section: Introductionmentioning

confidence: 99%

Influence factors and mechanism of backscattering characteristics of electromagnetic waves in a single layer plasma tube array

Liu,

Peng,

Qiu

et al. 2024

AIP Advances

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A single-row plasma tube array (PTA) experimental system is established to improve the backscattering attenuation of a metal plate covered by a plasma tube array. The backscattering test system is utilized in a microwave anechoic chamber to examine the effects of gas composition, pressure, tube diameter, and discharge power on the backscattering attenuation of a metal plate using a plasma tube array. The electron density is obtained via microwave diagnosis. The backscattering attenuation mechanism in different frequency bands is revealed via numerical simulation. The results show that the reasonable selection of PTA parameters achieves strong attenuation in different frequency bands. The strong attenuation frequency bands of Ar–Hg PTA are in low frequency (1.5–3.5 GHz) and high frequency (13–17 GHz), while that of Ne–Hg discharge is in medium frequency (6.4–11.7 GHz). When the pressure is 0.5 and 1 Torr, the PTA shows a low, medium, and high multi-band distribution for the backscattering strong attenuation region. The backscattering strong attenuation region shows a low and high dual-band distribution, while the pressure is 2–4 Torr. As the tube diameter increases, the strong attenuation region maintains the dual-band, but it changes from low and high frequency bands to medium frequency (6-12 GHz), where the backscattering attenuation mechanism is collisional absorption when the frequency of plasma electron oscillation is close to that of electro-magnetic waves. The backscattering attenuation mechanism in the low frequency band involves the periodic structure of PTA generating local surface plasmon to absorb electromagnetic waves.

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Section: Introductionmentioning

confidence: 99%

Influence factors and mechanism of backscattering characteristics of electromagnetic waves in a single layer plasma tube array

Liu,

Peng,

Qiu

et al. 2024

AIP Advances

View full text Add to dashboard Cite

show abstract

“…There are several plasma generation techniques, including radio frequency (RF) capacitive coupling discharge [9,10], RF inductive coupling discharge [11], low-pressure hollow cathode discharge [12], coaxial glow discharge [13], dielectric barrier discharge (DBD) [14,15], and low-pressure Mercury vapor discharge (fluorescent or ultraviolet lamps) [16], among others. Low-pressure Mercury vapor discharge plasma has the advantages of low power consumption, large amount of generated plasma, long-term stable maintenance, mature technology, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Factors influencing the electromagnetic transmission of mercury vapor discharge plasma tube arrays

Liu

Peng

Lin³

et al. 2023

Phys. Scr.

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Low-pressure mercury vapor discharge plasma tubes were used to form arrays to control electromagnetic transmission. The internal and external factors influencing a discharge tube array were adjusted to expand the electromagnetic wave manipulation ability. The plasma electron density (ne) is the key parameter for electromagnetic wave manipulation. Microwave transmission was used to diagnose ne under different working conditions. Simulations and electromagnetic transmission measurements were used to investigate the behavior of the effect of internal and external factors on electromagnetic transmission. Simulation results indicated that increasing ne increased the attenuation, widened the attenuation bandwidth, and shifted the attenuation band to higher frequencies. The experimental results showed that increasing the discharge power significantly increased ne and widened the strong attenuation frequency band. ne first increased and then decreased when the gas pressure was increased. The tube diameter affected both ne and the plasma layer thickness, and the attenuation band of the plasma tube array moved to a low frequency with an increase in tube diameter. The primary and secondary order of the influence of external factors other than power on the attenuation bandwidth obtained via an orthogonal experiment is as follows: gas composition > tube diameter > pressure. The maximum attenuation bandwidth for 10 dB attenuation was 9.85 GHz. The results show that the attenuation control ability of the plasma tube array can be significantly improved by adjusting the external factors of the plasma tube.

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Arrayed multiple atmospheric-pressure plasma jet sources for active stealth

Ouyang,

Ding,

Liu

et al. 2023

Cell Reports Physical Science

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Attenuating Broadband Electromagnetic Waves in Dielectric-Barrier Discharge Plasmas

Cited by 5 publications

References 25 publications

Influence factors and mechanism of backscattering characteristics of electromagnetic waves in a single layer plasma tube array

Influence factors and mechanism of backscattering characteristics of electromagnetic waves in a single layer plasma tube array

Factors influencing the electromagnetic transmission of mercury vapor discharge plasma tube arrays

Arrayed multiple atmospheric-pressure plasma jet sources for active stealth

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