Design and its electromagnetic properties of low emissivity selective radiators in middle and far infrared bands

Yuan Lu; Xianyu Shen; Yunsong Feng; Ya Qiao

doi:10.1117/12.2617413

9 December 2021 Design and its electromagnetic properties of low emissivity selective radiators in middle and far infrared bands

Yuan Lu, Xianyu Shen, Yunsong Feng, Ya Qiao

Author Affiliations +

Proceedings Volume 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021); 120301B (2021) https://doi.org/10.1117/12.2617413
Event: Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 2021, Hefei, China

Abstract

The infrared spectral emissivity of selective radiators varies with wavelength. Selective radiators have good application prospects in solar energy utilization, camouflage, radiation refrigeration and other fields. In this paper, a selective radiator which has low emissivity in mid-far infrared band is designed by using frequency selective surface. The electromagnetic characteristics of the selective radiator in mid-far infrared band are calculated by using HFSS simulation software. Through calculation, it is found that the designed selective radiator has high reflectivity and low transmittance for the incident electromagnetic wave at 3-14μm band. In this paper, the reflection and transmission characteristics of the selective radiator to electromagnetic wave were calculated at three incident angles of 0^o, 15^o and 30^o. The calculated results show that with the increase of incident Angle, the band stop filter bandwidth of the selective radiator increases, and the resonant wavelength moves to the short-wave direction, but the variation range is not large. The filtering characteristics of bands above 6μm show better band resistance with the increase of incidence Angle.

Citation Download Citation

Yuan Lu, Xianyu Shen, Yunsong Feng, and Ya Qiao "Design and its electromagnetic properties of low emissivity selective radiators in middle and far infrared bands", Proc. SPIE 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 120301B (9 December 2021); https://doi.org/10.1117/12.2617413

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