Noise filter of high frequency generator
AssigneeSamsung Electronics Co., Ltd.
InventorSung-Chol Yang
Life of this patent
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Abstract
A noise filter of a high frequency generator reduces noise of a certain frequency band leaked from the high frequency generator using a structure in which a first core inductor, an air-core inductor and a second core inductor are connected in series to each other. The first and second core inductors have high frequency-energy absorbing members inserted thereinto, and the air-core inductor is not provided with a high frequency-energy absorbing member therein. The high frequency-energy absorbing member is made of one of iron oxide, tin alloy and ferrite. The high frequency-energy absorbing member is also provided with a sectional area in which noise of a frequency band of 400 MHz to 900 MHz is attenuated.
Claims10
A high frequency generator, comprising:
- a plurality of choke coils, each including a first core inductor, an air-core inductor and a second core inductor connected in series to each other, the first and second core inductors having high frequency-energy absorbing members inserted therein, and the air-core inductor is not provided with a high frequency-energy absorbing member therein.
A noise filter of a high frequency generator, comprising:
- a plurality of choke coils each including a first core inductor, an air-core inductor and a second core inductor connected in series to each other, the first and second core inductors having high frequency-energy absorbing members inserted therein, and the air-core inductor is not provided with a high frequency-energy absorbing member therein,
- wherein the first core inductors are electrically connected to the high frequency generator and the second core inductors are connected to a condenser.
An apparatus, comprising:
- a magnetron to generate high frequency signals;
- and
- a noise filter connected to the magnetron to prevent the high frequency signals of the magnetron from leaking outside,
- wherein the noise filter includes a plurality of choke coils provided in a filter casing of the noise filter, each having a first core inductor, an air-core inductor and a second core inductor connected in series to each other.
Dependencies are inferred from the claim text.