Abstract
This paper describes a new flexible thermal control mirror: controlled optical surface films. Controlled optical surface film exhibits high reflectivity to solar radiation, high infrared emissivity, and high transmittance to radio waves. The target of radiowave transmittance is Ge-coated Kapton, which is used on antenna covers; the target of thermooptical properties is the optical solar reflector. Controlled optical surface film controls spectral reflectance and absorptance in wavelengths ranging from 0.26 to 100 μm with a dielectric multilayer. This multilayer is designed using a genetic algorithm method. The solar absorptance of the latest controlled optical surface film is 0.09, and its total hemispherical emittance is 0.77 at 300 K. These properties are similar to those of the optical solar reflector. In addition, there is little radiowave attenuation in this controlled optical surface film, and its radiowave transmittance is similar to that of Ge-coated Kapton.
| Original language | English |
|---|---|
| Pages (from-to) | 1043-1050 |
| Number of pages | 8 |
| Journal | Journal of Spacecraft and Rockets |
| Volume | 53 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2016 |
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ASJC Scopus subject areas
- Aerospace Engineering
- Space and Planetary Science
Cite this
Design and measurement of radiowave transmissive thermal control mirror. / Tomioka, Kota; Tachikawa, Sumitaka; Kawahara, Kousuke; Nagasaka, Yuji.
In: Journal of Spacecraft and Rockets, Vol. 53, No. 6, 2016, p. 1043-1050.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Design and measurement of radiowave transmissive thermal control mirror
AU - Tomioka, Kota
AU - Tachikawa, Sumitaka
AU - Kawahara, Kousuke
AU - Nagasaka, Yuji
PY - 2016
Y1 - 2016
N2 - This paper describes a new flexible thermal control mirror: controlled optical surface films. Controlled optical surface film exhibits high reflectivity to solar radiation, high infrared emissivity, and high transmittance to radio waves. The target of radiowave transmittance is Ge-coated Kapton, which is used on antenna covers; the target of thermooptical properties is the optical solar reflector. Controlled optical surface film controls spectral reflectance and absorptance in wavelengths ranging from 0.26 to 100 μm with a dielectric multilayer. This multilayer is designed using a genetic algorithm method. The solar absorptance of the latest controlled optical surface film is 0.09, and its total hemispherical emittance is 0.77 at 300 K. These properties are similar to those of the optical solar reflector. In addition, there is little radiowave attenuation in this controlled optical surface film, and its radiowave transmittance is similar to that of Ge-coated Kapton.
AB - This paper describes a new flexible thermal control mirror: controlled optical surface films. Controlled optical surface film exhibits high reflectivity to solar radiation, high infrared emissivity, and high transmittance to radio waves. The target of radiowave transmittance is Ge-coated Kapton, which is used on antenna covers; the target of thermooptical properties is the optical solar reflector. Controlled optical surface film controls spectral reflectance and absorptance in wavelengths ranging from 0.26 to 100 μm with a dielectric multilayer. This multilayer is designed using a genetic algorithm method. The solar absorptance of the latest controlled optical surface film is 0.09, and its total hemispherical emittance is 0.77 at 300 K. These properties are similar to those of the optical solar reflector. In addition, there is little radiowave attenuation in this controlled optical surface film, and its radiowave transmittance is similar to that of Ge-coated Kapton.
UR - http://www.scopus.com/inward/record.url?scp=85012225942&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85012225942&partnerID=8YFLogxK
U2 - 10.2514/1.A33499
DO - 10.2514/1.A33499
M3 - Article
VL - 53
SP - 1043
EP - 1050
JO - Journal of Spacecraft and Rockets
JF - Journal of Spacecraft and Rockets
SN - 0022-4650
IS - 6
ER -