| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a spuriousness on the high-band side is generated because a shape is enlarged and a resonance on the cross direction is generated in an open stub section in a conventional low-pass filter. SOLUTION: The low-pass filter is constituted by inserting a part obtained by cutting a metal plate and alternately configuring capacitors 12 and inductors 13 into a shielding case 11 having a cylindrical internal space. In the low-pass filter, since the capacitors 12 are bent in a circular shape, both ends are joined mutually by a soldering, and the central sections of the inductors 13 are bent so as to be brought near the central section of the internal space of the case; a miniaturization is enabled, and the low-pass filter having excellent frequency characteristics can be obtained. COPYRIGHT: (C)2008,JPO&INPIT
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