Power dividers are passive devices that are designed to combine multiple antennas in stacked antenna systems, while providing a constant 50 ohm impedance over the bandwidth chosen.

The advantages of this system are wider bandwidth and lower loss than that of odd multiple quarter wave cable trimming solutions. Custom trimming for best VSWR is time consuming.

Power dividers provide simple, repeatable performance improvements for stacked antenna systems. Directive Systems power dividers, in addition, provide additional advantages.