THREE-PORT VARIABLE POWER DIVIDER

摘要

A variable power divider comprising a latching ferrite circulator including an input port, a first output port, a second output port, and at least one winding. The ports meet in a common junction. The variable power divider also includes a controller interface that receives a command signal indicating a desired power division ratio and a driver circuit configured to receive a control signal from the controller interface. The driver circuit generates a first pulse, having a duration and amplitude corresponding to a saturation state of the latching ferrite circulator, in a first direction through the at least one winding. After the first pulse, the driver circuit generates a second pulse in a second direction through the at least one winding opposite the first direction, the second pulse having a duration and amplitude determined from the desired power division ratio and corresponding to a non-saturation state of the latching ferrite circulator.

主权项

1. A variable power divider, comprising:
a latching ferrite circulator including an input port, a first output port, a second output port, and at least one magnetizing winding, wherein the input port, first output port, and the second output port meet in a common junction; a controller interface having an input that receives a command signal indicating a desired power division ratio for dividing power received at the input port between the first output port and the second output port; and a driver circuit configured to receive a control signal from the controller interface; wherein the driver circuit generates a first current pulse in a first direction through the at least one magnetizing winding, the first current pulse having a duration and amplitude corresponding to a first saturation state of the latching ferrite circulator; wherein after the first current pulse, the driver circuit generates a second current pulse in a second direction through the at least one magnetizing winding opposite to the first direction, the second current pulse having a duration and amplitude determined from the desired power division ratio indicated by the command signal and corresponding to a non-saturation state of the latching ferrite circulator.