| 摘要 |
The invention relates to an RF filter which contains at least one electrical resonant circuit, in the form of a ring feeder, for suppressing interference signals on an RF feeder. In comparison with a lambda /4 spur feeder, on whose open end relatively high emission losses occur, the ring feeder, which is electrically coupled to the RF feeder, has considerably lower emission losses, that is to say the interference signals occurring on the RF feeder can thus be short-circuited better, in a simple manner, than by using a spur feeder which is open at the end.
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