Planar arrays of wavy microstrip lines as thin resonant magnetic walls

High-impedance surfaces and artificial magnetic walls are very useful in the microwave and antenna techniques, extending the design space. In this paper, a planar array of wavy microstrip lines is presented. The method of moments was used to solve the problem of electromagnetic reflection from microstrip arrays of thin narrow curvilinear strips. By enforcing the boundary conditions we get a vector integral equation for the induced current. This integral equation reduces to an algebraic one by using the standard spectral Galerkin technique.