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Directional coupler suitable for high-power, high-frequency amplifiers comprises parallel coplanar strips, with further coupling strip on opposite side of circuit board, dimensioned to set coupling coefficient
Directional coupler suitable for high-power, high-frequency amplifiers comprises parallel coplanar strips, with further coupling strip on opposite side of circuit board, dimensioned to set coupling coefficient
On the other side of the substrate (1), opposite the coupling slot (s), a strip conductor (10) is located. Its width and length are selected to determine the fixed coupling coefficient.
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