The analysis of helical antenna loaded with a bi-isotropic core using MoM

This paper investigated the scenario when a helical antenna loaded with a bi-isotropic core. To solve the problem when both conductor and bi-isotropic material existed, VSIE is used to develop the matrix equations which needed to employ MoM. To circumvent the difficulty caused by the complex constitutive relationship of bi-isotropic material, a set of equivalent sources is proposed. And solenoidal basis function is used to make the numerical solution less complex and more efficient. Some numerical results are provided at the end of this paper.