A novel power divider with enhanced physical and electrical port isolation

In this paper, we present a novel power divider with enhanced physical and electrical port isolation as compared to a Wilkinson divider. We obtain the improvement by placing the isolation element within the divider at an arbitrary phase length less than 90 degrees. As a result, the outputs of our new divider are both physically and electrically isolated. We first develop the theory behind the isolation elements. We then demonstrate the measured performance of our new divider in MMIC form.