a high gain , steerable phased array antenna includes multiple oblong slots . for each of the oblong and preferably rectangular slots , an electrical microstrip feed line is disposed within a parallel plane to the slot , and extends in the short dimension of the slot across the center of its long dimension . the microstrip feed lines and corresponding oblong slots form magnetically coupled lc resonance elements . a main feed line couples with the microstrip feed lines . delay circuitry is used to electronically steer the antenna by selectively changing signal phases on the microstrip feed lines . one or more processors operating based on program code continuously or periodically determine a preferred signal direction and control the delay circuitry to steer the antenna in the preferred direction . the preferred signal direction is determined based on a directional throughput determination .