As. Saleh et H. Aubert, Self-similar multi-slab media with variable lacunarity for design of selective microwave filters, ELECTR LETT, 37(17), 2001, pp. 1071-1073
The transmission spectrum of self-similar multilayered structures exhibits
sharp peaks within forbidden frequency bandgaps. Here, advantage is taken o
f this property to design selective microwave filters. For this purpose sel
f-similar multi-slab media with variable lacunarity (i.e. variable distribu
tion of gap sizes) are inserted in a metallic waveguide.