| 摘要 |
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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