Patent ID: 7026886

Claim:
A two-dimensional array waveguide structure implemented using multi-layer circuit board manufacturing process, comprising: a first metal layer consisted of at least a first sub metal layer; wherein, adjacent first sub metal layers are isolated by a dielectric layer lain in between, the dielectric layer is perforated with a plurality of openings filled with metal, each first sub metal layer is formed by a plurality of first unit cells arranged in rows and columns to form a two-dimensional array structure, and each first unit cell has a main body and a plurality of connecting arms joining adjacent first unit cells; a second metal layer consisted of at least a second sub metal layer; wherein, adjacent second sub metal layers are isolated by a dielectric layer lain in between, the dielectric layer is perforated with a plurality of openings filled with a metal, each second sub metal layer is formed by a plurality of second unit cells arranged in rows and columns to form a two-dimensional array structure, the second metal layer is situated below the first metal layer, each second unit cell is corresponding to individual first unit cell in a one-on-one manner, and adjacent second unit cells are joined with one another, and each second unit cell is made of a metal wire loop; and a dielectric layer provided between the second metal layer and the first metal layer to isolate the second metal layer from the first metal layer.