Patent ID: 6621378
Filing Date: 2003-09-16
Classification: H03H

Abstract:
A filter comprising:a substrate with a dielectric constant of 200 or less, said substrate having a first surface, a second surface, and a side surface between said first and said second surfaces; a first electrode disposed on at least said first surface; a group of second electrodes disposed on at least said second surface, each of said second electrodes not in contact with each other and not in contact with said first electrode, and a portion of said group of second electrodes being located directly opposite a portion of said first electrode via said substrate to form at least one capacitance; and a plurality of inductance elements, each of said inductance elements having terminals, each of said terminals connected to at least two electrodes selected from said group of second electrodes and said inductance elements having an inductance ranging from 0.1 nH to 30 nH and dimensions L1 in length, L2 in width and L3 in height, said dimensions satisfying conditions as follows; 0.3 mm1<2.1 mm 0.1 mm2<1.1 mm 0.1 mm3<1.1 mm wherein at least one of said plurality of inductance elements being different in structure from other said inductance elements.