Design equation for thin metal gratings exposed by S-polarized electromagnetic waves

ABSTRACT

The transmission characteristics of freestanding 1-D metallic gratings with rectangular lamels are studied numerically in a wide range of their sizes variations. Investigations were performed at frequencies from 75 to 350 GHz, for s-polarized incident electromagnetic waves. It is shown that obtained numerical data can be approximated by the simple analytical expression valid for different values of the grating period and metallization thicknesses from 10 to 50 mkm. Analytical data agree well with the results of numerical simulations and measurements.

KEYWORDS:

• Approximation
• numerical modeling
• metallic grating
• transmissivity

Disclosure statement

No potential conflict of interest was reported by the author.

ORCID

Vyacheslav V. Komarov http://orcid.org/0000-0002-2345-086X

Additional information

Funding

This work was supported by the German Academic Exchange Service (DAAD): project No 91692530, Germany and by the Federal Ministry of Education and Science of the Russian Federation (state contract No 3.7135.2017/BP).

Notes on contributors

Vyacheslav V. Komarov

Vyacheslav V. Komarov received the PhD degreee in Radio Physics from the Saratov State University in 1994, and the DSc degree in Antennas and Microwave Devices from Yuri Gagarin State Technical University of Saratov in 2007. He is currently professor at the Institute of Electronic and Mechanical Engineering of the Yuri Gagarin State Technical University of Saratov. In 2014 he has been awarded the Premium of Russian Federation Government in Science and Engineering. His current research interests include mathematical modeling and CAD of passive microwave and terahertz devices, frequency selective surfaces, propagation of EM waves in complex media.