Cavity filter having surge suppress means
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United States of America Patent
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Apr 22, 2014
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app pub date -
May 25, 2011
filing date -
May 25, 2011
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Abstract
A cavity filter includes a base member defining therein a resonant chamber, an antenna port disposed at the center of the resonant chamber, two signal input/output ports respectively disposed at two distal ends of the resonant chamber for signal input/output, a cover member covering the base member, two feedback channels disposed in the base member at two opposite lateral sides relative to the resonant chamber and respectively connected between the signal ports and the antenna port, and wave-absorbing components respectively mounted in the feedback channels for removing surge waves from feedback frequency components in the feedback channels.
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