Coupling Analysis of Metamaterial Inspired Structures using the Theory of Characteristic Modes

2019 13th European Conference on Antennas and Propagation (EuCAP), Cracovie, POLOGNE, 31-/03/2019 - 05/04/2019; Metamaterial inspired designs have been explained with the principle of compensation of stored energy between the antenna and the metamaterial. This compensation can be attributed to the coupling between the metamaterial and the antenna. In this paper, we use the theory of characteristic modes in analyzing the coupling between a metamaterial inspired design and its excitation as well as the coupling between the different modes of a metamaterial inspired design. The result obtained validates and gives more insight into the compensation of stored energy explanation for metamaterial inspired design.