| 摘要 |
A laminated LC filter having very large inductance and an excellent Q characteristic, includes insulation layers, inductor patterns having substantially the same shapes and capacitor patterns. The inductor patterns are laminated through the insulation layers, and constitute the inductor of the duplex structure. Similarly, the inductor patterns also constitute the inductor of the duplex structure. The capacitor patterns are opposite to the increased width portions of the inductor patterns, and define the capacitor. Similarly, the capacitor patterns are opposite to the increased width portions of the inductor patterns, and define the capacitor. The coupling capacitor pattern is located between the inductor patterns.
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