Keysight 779D Dual Directional Coupler, 1.7GHz - 12.4GHz

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The Keysight 779D 1.7 - 12.4 GHz Dual Directional Coupler is a versatile and efficient product. A dual directional coupler can be thought of as two directional couplers placed back to back, with both the isolated ports of each coupler terminated to 50 ohms (or the system impedance). The outer ports of the 779D, i.e ports 3 and 4, can be connected to any mismatched load without affecting the directivity or the other coupled port. The Keysight 779D coupler can also be used to simultaneously monitor both the forward and reverse power of a system.