Abstract: A single balanced to dual unbalanced transformer containing within it two quarter wave transformers and seven matching network impedances. The quarter wave transformers are of common ground reference, feed a balanced output, and are coupled to and fed by two unbalanced feeds. The single balanced to dual unbalanced transformer may also contain within it a variable impedance transmission line, a power amplifier, and a low noise amplifier. The single balanced to dual unbalanced transformer provides transmit/receive paths to a passive radiator load by utilizing dynamic impedances presented by the power amplifier, the low noise amplifier, a switch, or a variable impedance transmission line that makes the active radiator concept feasible and is a new concept For solid state phased array radars and communication systems that reduces losses, improves efficiency, and ultimately reduces cost.