| 摘要 |
PROBLEM TO BE SOLVED: To increase especially the amount of attenuation in a plurality of specific, narrow frequency bands existing in a stop band of a low-pass filter. SOLUTION: The laminated low-pass filter 1 includes: inductors 11, 12 connected in series and provided between an input terminal 2 and an output terminal 3; a capacitor 16 connected in parallel with the inductor 11; a capacitor 17 connected in parallel with the inductor 12; capacitors 13, 14, 15; and inductors 6, 7, 8. The output end of the inductor 11 and the input end of the inductor 12 are connected to the ground via the serially connected capacitor 13 and inductor 6. The input end of the inductor 11 is connected to the ground via the serially connected capacitor 14 and inductor 7. The output end of the inductor 12 is connected to the ground via the serially connected capacitor 15 and inductor 8. COPYRIGHT: (C)2009,JPO&INPIT
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