A key parameter extraction method for scaled RCS measurement of coated targets in the THz band

Shuang Pang; Yang Zeng; Qi Yang; Bin Deng; Hongqiang Wang

doi:10.1117/12.2605126

9 September 2021 A key parameter extraction method for scaled RCS measurement of coated targets in the THz band

Shuang Pang, Yang Zeng, Qi Yang, Bin Deng, Hongqiang Wang

Proceedings Volume 11909, Tenth International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW 2021); 119090J (2021) https://doi.org/10.1117/12.2605126
Event: Tenth International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW 2021), 2021, Chengdu, China

Abstract

In the terahertz (THz) band, the scaling relation between scaled models and prototypes with coatings needs to be reconsidered due to the dispersive nature of the coating materials. Besides, it is difficult to obtain the material parameters, such as the permittivity. Based on the comparison of RCS between a metal plate and a coated plate, a key parameter extraction method is proposed. Combining with the scaled method which is based on the dimensional analysis theory, an improved scaled method is proposed for predicting the RCS of a coated prototype. The parameter extraction method can provide the key parameter corresponding to the coated material at certain frequency when the intrinsic parameters are unknown. The validity of the proposed method is proved by simulation. The scope of RCS scaled measurements on coated targets will be expanded in the THz band.

Citation Download Citation

Shuang Pang, Yang Zeng, Qi Yang, Bin Deng, and Hongqiang Wang "A key parameter extraction method for scaled RCS measurement of coated targets in the THz band", Proc. SPIE 11909, Tenth International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW 2021), 119090J (9 September 2021); https://doi.org/10.1117/12.2605126

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