Coplanar directional coupler for hybrid geometry
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United States of America Patent
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Sep 23, 2003
Grant Date -
Mar 13, 2003
app pub date -
Sep 12, 2001
filing date -
Sep 12, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A microwave coupler has a planar form with a transmission line segment oriented at an angle relative to a main transmission line. The planar form of the transmission line, such as in a printed circuit board, helps reduce the size and manufacturing costs for the coupler. When placed a prescribed distance from the main transmission line and oriented at an appropriate angle, the directivity and coupling factor requirements can be met precisely with minimal tuning. Where fine tuning is required, a tuning screw and resistor disposed adjacent to the transmission line segment are provided.
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