Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements
Upon reentering the Earth’s atmosphere from space, a reentry vehicle becomes enshrouded in an ionization layer. This layer is known as the reentry plasma sheath and is caused by aerodynamic heating. Owing to the oscillation of charged particles in the reentry plasma sheath, the electromagnetic waves...
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MDPI AG
2023-01-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/1/87 |
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| author | Gi-Won Shin Jae-Hyeon Kim Sun-Hee Lee In-Young Bang Ji-Hwan Kim Yeon-Soo Park Hee-Tae Kwon Woo-Jae Kim Gi-Ching Kwon |
| author_facet | Gi-Won Shin Jae-Hyeon Kim Sun-Hee Lee In-Young Bang Ji-Hwan Kim Yeon-Soo Park Hee-Tae Kwon Woo-Jae Kim Gi-Ching Kwon |
| author_sort | Gi-Won Shin |
| collection | DOAJ |
| description | Upon reentering the Earth’s atmosphere from space, a reentry vehicle becomes enshrouded in an ionization layer. This layer is known as the reentry plasma sheath and is caused by aerodynamic heating. Owing to the oscillation of charged particles in the reentry plasma sheath, the electromagnetic waves for communication between the vehicle and ground are attenuated. Analysis of the plasma density and attenuation of electromagnetic waves in a reentry plasma environment would require experimentation in an environment in which an actual aircraft reenters the atmosphere. Alternatively, an experiment in a large-scale plasma wind tunnel would be necessary. Unfortunately, these experiments would be extremely costly. Therefore, in this study, the reentry plasma was reproduced at laboratory scale using the hot refractory anode vacuum arc (HRAVA) method. In addition, the pressure in the vacuum chamber was used as a variable to probe the characteristics of the reentry plasma according to the altitude. The plasma density and attenuation of electromagnetic waves propagating through the plasma medium were measured using heterodyne interferometry and reflectometry capable of frequency analysis in the range of 10−35 GHz. The results confirmed that the plasma density and attenuation of the electromagnetic waves increased as the pressure in the vacuum chamber increased. |
| first_indexed | 2024-03-09T13:55:02Z |
| format | Article |
| id | doaj.art-710213a827e6429aa372b5913d999ee9 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-09T13:55:02Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-710213a827e6429aa372b5913d999ee92023-11-30T20:44:11ZengMDPI AGAerospace2226-43102023-01-011018710.3390/aerospace10010087Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory MeasurementsGi-Won Shin0Jae-Hyeon Kim1Sun-Hee Lee2In-Young Bang3Ji-Hwan Kim4Yeon-Soo Park5Hee-Tae Kwon6Woo-Jae Kim7Gi-Ching Kwon8Department of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaDepartment of Electrical and Biological Physics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of KoreaUpon reentering the Earth’s atmosphere from space, a reentry vehicle becomes enshrouded in an ionization layer. This layer is known as the reentry plasma sheath and is caused by aerodynamic heating. Owing to the oscillation of charged particles in the reentry plasma sheath, the electromagnetic waves for communication between the vehicle and ground are attenuated. Analysis of the plasma density and attenuation of electromagnetic waves in a reentry plasma environment would require experimentation in an environment in which an actual aircraft reenters the atmosphere. Alternatively, an experiment in a large-scale plasma wind tunnel would be necessary. Unfortunately, these experiments would be extremely costly. Therefore, in this study, the reentry plasma was reproduced at laboratory scale using the hot refractory anode vacuum arc (HRAVA) method. In addition, the pressure in the vacuum chamber was used as a variable to probe the characteristics of the reentry plasma according to the altitude. The plasma density and attenuation of electromagnetic waves propagating through the plasma medium were measured using heterodyne interferometry and reflectometry capable of frequency analysis in the range of 10−35 GHz. The results confirmed that the plasma density and attenuation of the electromagnetic waves increased as the pressure in the vacuum chamber increased.https://www.mdpi.com/2226-4310/10/1/87reproduction of reentry plasmaplasma densitymicrowave reflectometry and interferometryelectromagnetic wave attenuation in plasma medium |
| spellingShingle | Gi-Won Shin Jae-Hyeon Kim Sun-Hee Lee In-Young Bang Ji-Hwan Kim Yeon-Soo Park Hee-Tae Kwon Woo-Jae Kim Gi-Ching Kwon Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements Aerospace reproduction of reentry plasma plasma density microwave reflectometry and interferometry electromagnetic wave attenuation in plasma medium |
| title | Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements |
| title_full | Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements |
| title_fullStr | Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements |
| title_full_unstemmed | Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements |
| title_short | Correlation between Density of Reentry Plasma and Frequency of Attenuated Electromagnetic Signals Based on Laboratory Measurements |
| title_sort | correlation between density of reentry plasma and frequency of attenuated electromagnetic signals based on laboratory measurements |
| topic | reproduction of reentry plasma plasma density microwave reflectometry and interferometry electromagnetic wave attenuation in plasma medium |
| url | https://www.mdpi.com/2226-4310/10/1/87 |
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