Compressed Internet Protocol (IP) Data Via Geosynchronous Earth Orbit (GEO) Satellite Circuits

An ultra wideband conformal array module will be developed and designed for use on submarines. The band of interest is 10 to 85 kHz with a 450 steering capability without grating lobe structure. A power density of 11 watts/cm2 over the frequency band isdesired. The goal is to include the transducer elements, T/R switch, power amplifiers and receive preamplifiers in the module. We consider the ultra wideband transducer with steering requirements to be the most challenging aspect and the one which requiresadvance innovative concepts for a practical solution. We propose to consider the use of high power density materials to obtain the output, a multiple resonant system to obtain the bandwidth and a multiple actuated piston head to obtain the desiredsteering even at the highest frequencies, along with array stability at the lowest frequencies. The transducers would be made as small as practical to allow the packaging of the electronics within the module. Extensive circuit analysis, array analysis andfinite element modeling would be used to optimize the design.An ultra wideband steerable transducer module will be designed for submarine applications. The multi-resonant, multi-actuated piston design chosen should provide an approach applicable tocurrent and future underwater acoustic systems. The technology should provide a significant improvement for high frequency sonar systems, and possibly for oceanographic and ultrasonic imaging systems.