Mortar, rocket, and missile attacks continue to constitute a threat to fixed locations associated with US operational forces. Sensis Corporation offers an innovative approach for adapting an existing interleaved slotted waveguide Ku Band phased array antenna for rapid detection and location of enemy mortar and artillery fire. The concept can be extended to address missiles. The proposed Ku-Band phased antenna features lightweight, structurally rigid waveguide, but with a patented technique for achieving dual-axis monopulse using interleaved slotted waveguide (ISWG) pairs. This unique feature is a departure from conventional arrays (e.g., AN/TPQ-36), and is essential to achieving operationally effective launch-impact CEP accuracy. The subsystems required, in addition to the antenna, for a fully compliant Ku-Band radar design are available as Sensis products, or as COTS items. The proposed design will fit within HMMWV space, weight and power constraints, and is expected to cost less than $750K per unit. The overall execution of the Phase I effort, directed at providing a radar with a rapid development, will fall into three main tasks: 1) refining the baseline radar design characteristics; 2) analyzing performance to insure the design meets operational requirements; and 3) determining the anticipated development cost and schedule
