Equivalent reactance model on shielding effectiveness analysis of high-transparent ring metallic mesh with submillimeter period and micrometer linewidth

In order to accurately and efficiently analyze the shielding effectiveness of high-transparent ring metallic mesh with submillimeter period and micrometer linewidth, an equivalent reactance model for the ring metallic mesh is proposed by using the equivalent reactance of its external and internal square meshes as well as two proportional factors. A ring metallic mesh sample was fabricated by UV-lithography and its shielding effectiveness was measured at 0° and 30° incident S-polarization microwaves. Experimental results agree well with simulated results, which proves the correctness of the equivalent reactance model proposed. So the equivalent reactance model can be used in the calculation and analysis of shielding effectiveness of high-transparent ring metallic mesh.