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Similar to our stripline directional couplers, Marki RF/microwave Dual Directional Couplers consist of two back to back stripline directional couplers. They allow a user to measure both forward and backward traveling waves with poorly impedance matched detectors. High directivity allows them to be used for scalar network and return loss/VSWR measurements.

Electrical Specifications
Parameter1 Frequency Range (GHz) Min Typ Max
Mean Coupling (dB) 0.7-14.7   10  
Amplitude Flatness (dB) 2   ±0.6 ±1.75
Direct Line Insertion Loss (dB)     3
VSWR   1.17 1.34
Directivity (dB) 0.7-12 20 23  
12-14.7 15 18  
Weight (g)     132  
1Specifications guaranteed when operated in a 50Ω system. 2Deviation from average coupling.    





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