| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise which appears on a signal in a radio communication device or on a signal transmitted from the radio communication device in the radio communication device with an LC filter. SOLUTION: In order to achieve the object, the device is provided with a printed circuit board 8, a ground layer 9 installed on the printed circuit board 8, a pattern 10 installed on the printed circuit board 8, and the LC filter 11 with input and output electrode units 17AA, 17AB which are electrically connected to the pattern 10. The LC filter 11 includes a ground layer 13 which faces with at least a part of the ground layer 9, and an insulation layer 12 which intervenes between the ground layer 13 and the ground layer 9. The insulation layer 12 is composed of organic substance. COPYRIGHT: (C)2007,JPO&INPIT
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