Patent ID: 7538638

Claim:
A stepped impedance structured resonator comprising: a laminate having superposed set of first, second and third layers; the second layer which is disposed between the first and third layers being a dielectric; each of the first and third layers being conductive layers having spaced first and second non-conductive areas with a first conductive area therebetween; a portion but less than all of the first non-conductive areas of the first and third layers overlapping in the lamination direction and a portion but less than all of the second non-conductive areas of the first and third layers overlapping in a lamination direction to thereby form inductive areas; and a portion of the first conductive areas of the first and third layers overlapping in the lamination direction to thereby form a capacitive area, wherein the shape of the first non-conductive areas of the first and third layers perpendicular to lamination direction are different.