BAND-PASS FILTER
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United States of America Patent
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Issued Date -
Mar 20, 2014
app pub date -
Dec 20, 2012
filing date -
Sep 18, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A band-pass filter including a double-sided circuit board, an input terminal, an output terminal and a plurality of resonance units are provided. The double-sided circuit board includes a first conductor layer and a second conductor layer. The first conductor layer includes a grounded metal layer. The grounded metal layer includes one or more vias to connect to a grounded layer of the second conductor layer. The input terminal is disposed in the first conductor layer to receive a signal. The output terminal is disposed in the first conductor layer to output the filtered signal. The resonance units are disposed in the first and second conductor layers respectively, wherein the number of the resonance units is N, and N is a positive integer greater than or equal to 3.
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