Electrically-small inductively-loaded low-profile dual sector antennas in random arrays for surface exploration and mapping

An electrically small inductively loaded dual sector antenna is investigated by varying the geometrical relationships between individual antenna parameters. Bandwidth is increased by closely spacing the resonant frequencies of each stacked sector. Inductive copper strips across the antenna aperture are adjusted to shape each sector's resonant frequency response. Rigorous simulation of these geometrical relationships leads to a highly functional design, which is fabricated and measured