Patent ID: 8106729

Claim:
A complementary-conducting-strip transmission line structure, comprising: a substrate; at least one first mesh ground plane; m second mesh ground planes, having m first inter-media-dielectric layers interlaced with and stacked among each other and said at least one first mesh ground plane to form a stack structure on said substrate, wherein each of said m first inter-media-dielectric layers has a plurality of vias to correspondingly connect said at least one first and said m second mesh ground planes, where m is a natural number and m≧2; a second inter-media-dielectric layer, being on said stack structure; and a signal transmission line, being on said second inter-media-dielectric layer, wherein, said m second mesh ground planes under said signal transmission line have at least one slit structure, an area of said at least one slit structure is ((P−W h )/2)*t, where P is a size of said substrate, W h is a size of a mesh slot of said m second mesh ground planes, and t is a size of said at least one slit structure.