Title:
WIDE-BAND BLOCKING FILTER
Document Type and Number:
WIPO Patent Application WO/2003/060934
Kind Code:
A1
Abstract:
A wide-band blocking filter for blocking a harmonic noise ranging from kHz to several 10GHz bands. For high-density packaging with little effect of magnetic fluxes between adjacent inductors, a wide-band blocking filter for blocking a harmonic wave superposed on the DC power source of an electric apparatus has a series connection of inductors with different self-resonance points both-ended with electrically short-circuited short rings made of coiled conductors to serve as mount electrodes and keeps the respective contacts of the inductors grounded with capacitors.
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Inventors:
KOMIYA KUNIFUMI (JP)
Application Number:
PCT/JP2002/010624
Publication Date:
July 24, 2003
Filing Date:
October 11, 2002
Export Citation:
Assignee:
KOMIYA KUNIFUMI (JP)
International Classes:
H01F17/02; H01F17/04; H01F27/00; H03H1/00; H03H7/075; (IPC1-7): H01F17/04; H03H7/075
Foreign References:
| JPS55169817U | 1980-12-05 | |||
| JP2001358551A | 2001-12-26 | |||
| JP2001210520A | 2001-08-03 | |||
| JP2001060520A | 2001-03-06 | |||
| JP2000182891A | 2000-06-30 | |||
| JPH11225035A | 1999-08-17 | |||
| JPH08330803A | 1996-12-13 | |||
| JPH09326317A | 1997-12-16 | |||
| JP2002367828A | 2002-12-20 |
Attorney, Agent or Firm:
KYOSEI INTERNATIONAL PATENT OFFICE (8-14 Akasaka 3-chome Minato-ku, Tokyo, JP)
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