TY - JOUR T1 - Improving efficiencies of superdirective arrays of monopoles over lossy groundplanes by using superconducting disc overlays JO - IEE P-MICROW ANTEN P PY - 1995/12/01 AU - Cook GG AU - Khamas SK AU - Bowling DR ED - VL - 142 IS - 6 SP - 462 EP - 466 Y2 - 2025/05/16 ER -