Геометрический метод определения фазового сдвига при отражении электромагнитной волны от конформной метаповерхности чувствительного элемента

Measurement Techniques (USA). 2022. № 4. С. 43–48.

Rano D., Yelizarov (Elizarov) A. A., Skuridin A., Zakirova E.

The current research of high-impedance conformal surfaces on metamaterials and multifunctional measuring devices based on them makes the task of determining their parameters and characteristics urgent. In this article, a geometric method for determining the phase shift in the in-phase reflection of an electromagnetic wave from the conformal meta-surface of a sensitive element is developed and proposed. It is shown, that as a result, of the meta-surface bending the incident electromagnetic wave passes an additional path at a certain electrical length, which leads to an increase in the phase shift of the reflected wave. Using the CST Studio Suite numerical simulation program, the values of the phase shift of incident and reflected waves for planar and curved metasurfaces of sensitive elements of various topologies with radii of curvature of 40; 50; 60 mm are obtained. The results obtained were compared with analytical calculations, which showed a good correspondence. The proposed method can be used to calculate and simulate measuring transducers containing sensitive elements on high-impedance conformal meta-surfaces.

Keywords: излучатель, microwave radiator, чувствительный элемент, sensitive element, метаповерхность, meta-surface, impedance metal surface, phase shift, импедансная металлическая поверхность, фазовый сдвиг

Publication based on the results of: Исследование электродинамических параметров и характеристик частотно-селективных резонаторных структур на метаматериалах и замедляющих системах для устройств терагерцевой электроники, интернета вещей (IoT, IIoT) и киберфизических систем (2021)