Applied Science and Convergence Technology

Fig. 8. (a) Cross-sectional view of the parallel double-curling probe with double cylindrical plasmas, which is LDP and HDP, at a distance of 1.0 mm from the antenna surface. The density of HDP (n_HPD) is four times that of LPD (n_LPD), i.e., n_HPD = 4n_LPD. (b) and (c) S₁₁ values of the parallel double-curling probe over input electron density for f₀ values of 0.87 and 2.75 GHz, respectively. (d) Output electron density (n_output) over the input electron densities (n_e,_LPD and n_e,_HPD) for two resonance frequencies of 0.87 and 2.75 GHz.

Applied Science and Convergence Technology 2023;32:127~133 https://doi.org/10.5757/ASCT.2023.32.5.127