“…In addition, in [25], the results of permittivity and tangent of dielectric losses were also shown. In this case, a linear approximation of these results has been made.…”
Section: Resultsmentioning
confidence: 96%
“…The results of magnetic permeability and tangent of magnetic losses have been previously published in [25], therefore, the graphs corresponding to these values are not shown in this study. From these graphs it was possible to conclude that the simulants JSC-2A and EAC-1A were non-magnetic, with a permeability of one and a value in the tangent of magnetic losses close to zero.…”
Section: Resultsmentioning
confidence: 98%
“…On the other hand, if the material to be measured is non-magnetic (µ = 1), this range may be extended to 6 GHz. A more detailed description of the named kits, the calibration performed and how the measurements were made are detailed in [25].…”
Section: Oecp and Transmission Line Methodsmentioning
confidence: 99%
“…Simulants JSCs are no longer manufactured and have been replaced by JSC-2A, as it represents a more advanced simulant, with properties closer to that of real lunar regolith according to [28]. This first comparison has already been published at the 2022 EuCAP (European Conference on Antennas and Propagation) in Madrid [25], where the properties of each of the named samples are detailed. However, in order to extend this comparison, new simulants and samples of real lunar regolith have been added in this study.…”
Section: Comparison Of Dielectric Propertiesmentioning
confidence: 99%
“…The new measured samples can be seen in Table 4. In order to differentiate the samples used in this study from those shown in [25], the real permittivity and loss tangent values of the newly added samples are represented by triangles, while the others appear by squares. The results of the set of samples corresponding to Tables 3 and 4 are presented in Figures 3, 4, 5 and 6.…”
Section: Comparison Of Dielectric Propertiesmentioning
The development of devices for In-Situ Resource Utilization (ISRU) of the lunar surface powder (regolith) by means of microwaves needs regolith simulants with electromagnetic properties similar to the lunar regolith. This document deals with the measurement of complex permittivity and dielectric loss tangent of the aforementioned simulants at ambient temperature from 400 MHz to 20 GHz. In addition, further studies are carried out taking into account humidity of the samples and their densities. The obtained results will be applicable for comparing the measured values of EAC-1A and JSC-2A among them and with other previously measured simulants and real samples. The measurements are carried out applying two different nonresonant techniques: Open- Ended Coaxial Probe (OECP) and Transmission Line. For this purpose, the DAK and EpsiMu commercial kits were respectively used.
“…In addition, in [25], the results of permittivity and tangent of dielectric losses were also shown. In this case, a linear approximation of these results has been made.…”
Section: Resultsmentioning
confidence: 96%
“…The results of magnetic permeability and tangent of magnetic losses have been previously published in [25], therefore, the graphs corresponding to these values are not shown in this study. From these graphs it was possible to conclude that the simulants JSC-2A and EAC-1A were non-magnetic, with a permeability of one and a value in the tangent of magnetic losses close to zero.…”
Section: Resultsmentioning
confidence: 98%
“…On the other hand, if the material to be measured is non-magnetic (µ = 1), this range may be extended to 6 GHz. A more detailed description of the named kits, the calibration performed and how the measurements were made are detailed in [25].…”
Section: Oecp and Transmission Line Methodsmentioning
confidence: 99%
“…Simulants JSCs are no longer manufactured and have been replaced by JSC-2A, as it represents a more advanced simulant, with properties closer to that of real lunar regolith according to [28]. This first comparison has already been published at the 2022 EuCAP (European Conference on Antennas and Propagation) in Madrid [25], where the properties of each of the named samples are detailed. However, in order to extend this comparison, new simulants and samples of real lunar regolith have been added in this study.…”
Section: Comparison Of Dielectric Propertiesmentioning
confidence: 99%
“…The new measured samples can be seen in Table 4. In order to differentiate the samples used in this study from those shown in [25], the real permittivity and loss tangent values of the newly added samples are represented by triangles, while the others appear by squares. The results of the set of samples corresponding to Tables 3 and 4 are presented in Figures 3, 4, 5 and 6.…”
Section: Comparison Of Dielectric Propertiesmentioning
The development of devices for In-Situ Resource Utilization (ISRU) of the lunar surface powder (regolith) by means of microwaves needs regolith simulants with electromagnetic properties similar to the lunar regolith. This document deals with the measurement of complex permittivity and dielectric loss tangent of the aforementioned simulants at ambient temperature from 400 MHz to 20 GHz. In addition, further studies are carried out taking into account humidity of the samples and their densities. The obtained results will be applicable for comparing the measured values of EAC-1A and JSC-2A among them and with other previously measured simulants and real samples. The measurements are carried out applying two different nonresonant techniques: Open- Ended Coaxial Probe (OECP) and Transmission Line. For this purpose, the DAK and EpsiMu commercial kits were respectively used.
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