Directional coupler device
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United States of America Patent
Stats
-
Mar 6, 1990
Grant Date -
N/A
app pub date -
Aug 31, 1988
filing date -
May 29, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a multi terminal directional coupler combined by a plurality of directional couplers. Two directional coupling conductors form each of the directional couplers and are provided on both side faces of a ground conductor through dielectric substrates so as to oppose each other. Openings are defined on the ground conductor corresponding to the coupling conductors so that the coupling conductors are electrically coupled through the openings. Therefore, interference between transmission lines situated on both sides of the ground conductor can be prevented and the multi terminal directional coupler can be made small in size and weight.
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