Reconfigurable power divider and combiner with variable power ratio

This paper presents the design of a power divider and combiner with variable power ratios. The essential idea is to use the operating principle of coupled-line coupler. The couple-line coupler, which has control switches at the coupled and the isolation ports, offer several different operating conditions depending on the state of the switches. By means of changing the terminating-state of the coupled and the isolation ports, short or open, the power ratio becomes 1:1 or 1:0. The input power is either equally divided into two output ports or delivered to the one output port exclusively.