| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated type band-pass filter which can secure sufficient inductive coupling using a conductor pattern arranged face-to-face in a laminating direction, and obtain a large attenuation amount at a high frequency side of the pass band. SOLUTION: This laminated type band-pass filter is provided with: a lamination body 10 which is formed by laminating a plurality of dielectric layers; a first conductive inductor which is formed including via-hole conductors 60, 62 which pierce the dielectric layer in a laminating direction and a conductor pattern 48 arranged on the dielectric layer, and constitute a first resonator; a second conductive inductor which is formed including via-hole conductors 61, 63 which pierce the dielectric layer in a laminating direction and a conductor pattern 49 arranged on the dielectric layer, and constitute a second resonator. The conductor pattern 48 of the first conductive inductor and the conductor pattern 49 of the second conductive inductor are arranged face-to-face in the laminating direction separated from each other at a predetermined space by which they mutually induction-coupled to each other. COPYRIGHT: (C)2009,JPO&INPIT
|
