Latest upgrades, progress, promising developments and breakthroughs are covered: PATRIOT has a GaN active electronically scanned arrays (AESAs) which gives it a 360 degrees coverage without mechanical rotation. AMDR handles 30 times more targets and has more than 30 times sensitivity of SPY-1D(V). Can now put a whole 32 element 60 GHz T/R array on a chip. All the RF circuitry for mm-wave radars are being put on a chip. Some believe such radars and phased arrays will soon be produced for just a few dollars. Major advances in printed flexible electronic circuits with diodes operating at 1.6 GHz and the potential for operation at 2.4GHz, the Wi-Fi band. A low profile dual polarized tightly coupled dipole antenna (TCDA) has been developed which provides a 1: 20 bandwidth and has lambda/40 thickness. The Army Research Laboratory in Adelphi MD has funded the development of a low profile metamaterial 250-505 MHZ antenna with a lambda/20 thickness. Kymeta had demonstrated December 2013 the transmission to satellites and back using laptop size 20 and 30 GHz antennas which use metamaterial resonators to effect the phase shifting. For the first time a clear explanation of how this antenna works is given. There is the potential continuation of Moore's Law via: 1. Spintronics - which could revolutionize computer architecture away from John von Neumann model, 2. Memristors - which potentially allows one to do what human brain does in a shoe box instead of a computer the size of a city requiring a nuclear power plant, 3. Graphene which has potential for Thz clock speed transistors, or 4. Quantum Computing - which has the potential of orders of magnitude advance in computation power per 2 years. The latest type of phased array is the MIMO radar phased array which has been shown to provide orders of magnitude better accuracy and resolution as well as better GMTI performance than conventional arrays. However, as summarized here, more recently this author has shown that conventional arrays can do just as well if properly used without suffering MIMO's signal processing load and waveform design problems. Lincoln Laboratory increases spurious free dynamic range of receiver plus A/D by 40 dB. Quantum Radar could allow us to see stealth targets and low cross section cancer cells. We live in exciting times.
