A Formal Approach to the Extraction of Permittivity and Permeability of Isotropic and Anisotropic Media Using the TM 11 Mode in Rectangular Waveguides.

Autor: Susek, Waldemar, Dukata, Andrzej, Pomarańska, Patrycja
Předmět:
Zdroj: Electronics (2079-9292); Jul2023, Vol. 12 Issue 13, p2899, 15p
Abstrakt: Based on our previous work on the propagation of electromagnetic waves in a layered medium placed in a rectangular waveguide, we present the theory of using the TE10 and TM11 modes to determine the complex parameters of isotropic and anisotropic media. The Nicolson–Ross–Weir method was used. The cases of isotropic, uniaxial, and biaxial materials were considered. It has been shown that the TM11 mode can be used to extract parameters of non-magnetic uniaxial anisotropy media by a single measurement, without changing the sample position. This is not possible with the previously used TE10 mode. It is also possible to use the TM11 mode to quickly determine whether a material is isotropic or not. Experimental results are presented for some isotropic materials. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index