Patent ID: 9548708
Date: 2017-01-17
CPC Classifications: H01P,H03F,H03H

Claim:
1. A variable power ratio directional (VPR) coupler, comprising: a first hybrid coupler having an input and a first coupler output, a second coupler output, and third coupler output; a first variable reactive network (VRN) having a network input connected to the first coupler output of the first hybrid coupler, a network output, and a control voltage input; a second VRN having a network input connected to the second coupler output of the first hybrid coupler, a network output, and a control voltage input; a second hybrid coupler having a first coupler input connected to the network output of the first VRN, a second coupler input connected to the network output of the second VRN, and a coupler output; wherein the VPR coupler is configured to: an amplifier configured to supply the control voltage to the first and second VRNs, wherein an amplifier input of the amplifier is configured to receive a portion of the third power from the output of the second hybrid coupler.