| 摘要 |
<p>A noise filter for a high frequency generator (300) maximizes a frequency band in which noise is attenuated by adjusting a spacing between winding turns of core inductors provided in the noise filter (220). The noise filter (220) includes a choke coil (204) having a first winding unit (204a) having a first spacing between turns thereof, a second winding unit (204b) having a second spacing between turns thereof and a third winding unit (204c) having a spacing the same as the first spacing between turns thereof. The first, second, and third winding units are connected in series to each other. The noise filter (220) also includes a high-frequency energy absorbing member (202) inserted into the choke coil (204). The high-frequency energy absorbing member (202) is made of one of iron oxide, tin alloy and ferrite, and includes a sectional area to attenuate noise in a frequency band ranging from 30 MHZ to 1000MHz. <IMAGE></p> |
