Electrode Cooling and Microwave Absorption by Phase Change Fluid Discharge Plasma

Hu, Yang; Fang, Maobo; Qian, Yishan; Liu, Muqing; Shen, Haiping; Hou, Zhongyu

doi:10.1109/tmtt.2022.3168748

Cited by 1 publication

(3 citation statements)

References 56 publications

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“…Each unit also has capacitive interactions C chord with other unit structures. There is another capacitive interaction C board that needs to be considered, which is the interaction between the absorber and the total reflective metal plate [6]. In addition, Z 0 is the wave impedance in the free space and is equal to 377 .…”

Section: E Equivalent Circuit Modelingmentioning

confidence: 99%

“…10, the inductive impedance of the top layer is greater, and the capacitive impedance is smaller, which results in stronger resonant eddy currents. The control of frequency shift and bandwidth results from multi-parameter synthesis [6].…”

Section: E Equivalent Circuit Modelingmentioning

confidence: 99%

“…plasmas [2], the spatial refractivity of plasmas is tunable and fast-switchable, so its reconfigurability can be achieved by the electrical control [3]. Three particularities of plasma place technical demands on the preparation of microwave-active plasmas that are difficult to implement: the absorption capacity of a collisional plasma is determined by the oscillation and collision behavior of electronic dipoles [4], i.e., the high absorption capacity depends on the plasma with high densities in the certain wavelength range; the scale of volumetric plasma needs to be large enough compared to the wavelength of the incident EM wave [5]; and achieving high electron number density is unavoidably accompanied by the high power and heating scenarios [6].…”

Section: Introductionmentioning

confidence: 99%

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Reconfigurable Plasma Composite Absorber Coupled With Pixelated Frequency Selective Surface Generated by FD-CGAN

Wang

Gao

et al. 2023

IEEE Access

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Conventional plasma absorbers are challenging to obtain high electron density and sizeable spatial scale for effective absorption while meeting the applied requirements of low profile and low power consumption. Although the frequency selective surface (FSS) has proved to realize a lower profile of plasma absorber with some empirical patterns adequately, the issue of the FSS design matching the dispersion distribution of complicated plasmas is still in suspense. A reverse prediction method referenced as the forecast and design Conditional Generative Adversarial Network (FD-CGAN) is proposed to generate a pixelated FSS between double-layer plasma periodic arrays. The reflection attenuation characteristics examined by experiments show that the addition of the FSS makes the coupling absorption effect surpass that of either pixelated FSS or plasma solely. Measurements in reconfigurable working modes and array arrangements demonstrate that the proposed configuration maximizes absorption effectiveness in the same profile, accompanied by the simulation. An interfacial void model is proposed to assist the design of the composite absorbing structure, together with an equivalent circuit for the hybrid absorber including periodic patterns with stochastic distribution characteristics, which analyze the absorption effect of the composite structure. The study provides a new approach for various microwave applications, including multilayer radarabsorbing structures, plasma-based stealth technology, and reconfigurable filters.

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Section: E Equivalent Circuit Modelingmentioning

confidence: 99%

Section: E Equivalent Circuit Modelingmentioning

confidence: 99%