PURPOSE: To obtain the band pass filter with a structure by which the impedance is simply and accurately adjusted.
CONSTITUTION: Coil electrodes 14, 16 are formed to one major side of a 1st dielectric layer 12. Extract terminals 20, 24 and earth terminals 18, 22 are formed so as to be extended to the end opposite to the 1st dielectric layer 12 from the coil electrodes 14, 16. A 1st earth electrode 26 is formed to other major side of the 1st dielectric layer 12. The thickness of the 1st dielectric layer 12 and a 2nd dielectric layer 34 is adjusted within a range of 1000μm or below. The extraction terminals 20, 24 are connected to the external extract electrodes. The earth terminals 28, 22 of the coil electrodes 14, 16 are connected to earth terminals 28, 30 of the 1st earth electrode 26 and to earth terminals 38, 40 of the 2nd earth electrode 36.
| JPH02101801 | HAND REJECTION FILTER |
| WO/2000/030205 | LOW-PASS FILTER |
| JP2002076705 | LAMINATED DIELECTRIC FILTER |
OKAMURA NAOTAKE
KASAHARA MASAHIRO
