AESA RADAR, METAMATERIALS & COGNITIVE ADAPTIVE ARRAY PROCESSING

RECENT AESA DEVELOPMENTS: Patriot upgrade to 2016 state-of-the-art AESA (Active Electronically Scanned Array); S-band AMDR AESA radar provides 30X sensitivity of SPY-1D(V). LOW COST PACKAGING: AESAs using commercial-off-the-shelf (COTS) hardware and packaging. EXTREME MMIC: Whole 256 element phased array on single chip at 60 GHz. DIGITAL BEAM FORMING (DBF): Reduces search power and time by almost a factor of two; Makes cognitive radars realizable; enables ultra low antenna sidelobes;  MOORE’S LAW: Potential future continuation of via Spintronics, Memristors, Graphene,  Quantum Computing. VERY LOW COST RADARS: for cars, UAVs, watch cell phones.

METAMATERIALS: low cost 2-D ESAs for satellite internet communications (at 10-15 GHz); for cell towers, for cars, surveillance and UAV radars; how they work explained for first time; Stealthing by absorption and by cloaking (that is making target invisible); which cloaking techniques not useful; wideband fractal metamaterials; Army 250-505 MHZ conformal antenna to replace tall whip antennas. WIDEBAND LOW PROFILE ANTENNA: 20:1 bandwidth.

COGNITIVE ADAPTIVE ARRAY PROCESSING (CAAP): Applied to barrage, hot-clutter and repeater jammers. Tremendous advantages over classical sample matrix inversion (SMI), principal component and diagonal loading adaptive processing. Sidelobe Cancelling (SLC). STAP and DPCA.