Ultra high speed ADCs and DSP brings direct digital RF beam forming to MILSATCOM phased array apertures

Abstract

In spite of its proven advantage, realization of affordable multi-functional phased-arrays, combining multiple communication apertures, is hindered by size, weight, and power consumption (SWaP) and cost issues. Incremental improvements in both transmit and receive analog RF chains are being pursued. However, it is difficult to expect revolutionary advances in phased array SWaP using architectures based on state-of-the-art analog component efficiencies and performances. These difficulties are very pronounced for the multi-band, multi-beam applications often found in modern MILSATCOM mobile and shipboard systems such as the Army's HC-3, Navy's NMT and Integrated Topside and Air Force's FAB-T programs. Dramatic improvements in single or multi-purpose large phased array apertures require a breakthrough technology. HYPRES has been developing superconductor wideband Digital-RF technology - a disruptive technological innovation capable of enabling dramatic change in communication architectures. Impressive results through recent live demonstrations have been achieved in proving that Digital-RF technology can be practically applied to next generation communication systems. Recent advances in direct conversion Digital-RF technology show that affordable, reliable, large multi-purpose phased arrays for communications, radar, and electronic warfare can be a reality.