A new concept for power-dividing networks with controllable power-division ratios controlled by phase shifters

In designing a power-dividing network, it is a great challenge to alter the power-division ratios. In this research, a new topology of a power-dividing network is proposed, which is simply constructed by two equal or unequal quadrature couplers and two phase-shifting circuits cascaded between the two couplers. In this structure, the power-division ratios can be easily controlled or tunned by altering the power division of the separated couplers and the phase shift of the phase shifters.