Band-pass filter
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United States of America Patent
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-
Mar 24, 2009
Grant Date -
Mar 15, 2007
app pub date -
Sep 13, 2006
filing date -
Sep 15, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a band-pass filter having: a first substrate; a second substrate; an input line; an output line; a ground layer; and an electromagnetic wave absorptive layer, the input line being provided on a first surface of the first substrate, the input line extending from a first edge thereof toward a second edge thereof, the output line being provided on a second surface of the first substrate, the output line extending from the second edge thereof toward the first edge thereof, the input line and the output line forming an overlapping line, the output line being sandwiched between a first surface of the second substrate and the second surface of the first substrate, the ground layer being provided on a second surface of the second substrate; the electromagnetic wave absorptive layer being provided on the first surface of the first substrate, the electromagnetic wave absorptive layer covering the input line.
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