What is the difference between directional coupler and combiner
A directional coupler splits RF signals asymmetrically (e.g., 90:10 ratio) with 20-30 dB isolation to monitor power without disrupting flow, while a combiner merges signals symmetrically (e.g., 3dB loss) with <0.5dB insertion loss. Couplers operate at 1-40GHz for measurement, combiners at narrow bands for coherent summation—critical differences in phase matching (±2°) and VSWR (<1.5:1). Basic […]
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