| 摘要 |
A multilayer LC filter includes two LC resonance circuits (21 and 22) in a two-stage circuit configuration. First and second resonator inductors (L21 and L22) formed by two strip-like electrical paths (14 and 15) extend laterally in parallel and are patterned on the same inductor layer (c). A strip-shaped shielding or ground path (35) is formed between, and in parallel with, the two strip-shaped electrical paths (14 and 15) such that the electrical paths are in the shape of a fork on the inductor layer c. The magnetic coupling between the resonator inductors (L21 and L22) is thus weakened and, even when pattern dislocations occur during the patterning of the paths, there is substantially no variation in the magnetic coupling characteristics of multilayer LC filters of this construction.
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