| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a small-sized branching filter capable of obtaining an attenuation amount over a wide band and superior insertion loss characteristics for a pass band. <P>SOLUTION: The branching filter uses a first filter having a parallel resonance circuit, provided with a first inductive element and a first capacitive element; and a first series resonance circuit provided with a second inductive element and a second capacitive element. The first and second inductive elements and the second capacitive element are constituted of electrode patterns formed into a laminate, and the first capacitive element is formed almost facing an electrode pattern configured with the first inductive element via a dielectric layer in the laminating direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
