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This is a review of the work done at Caltech's Jet Propulsion Laboratory during the past decade on development of the coupled oscillator technology in phased array applications to spacecraft telecommunications. First, some historical background is provided to set the work in context. However, this is by no means intended to be a comprehensive review of all work in this area. Rather, the focus is on...
In either a stowed or deployed configuration, a satellite typically is not capable of handling several large antenna apertures. The satellite is burdened further by the associated mounting hardware and deployment mechanism of each antenna which adds weight and volume to the satellite. One solution to this problem is to combine two or more antenna apertures into a single unit to reduce weight, complexity...
The Jet Propulsion Laboratory's Deep Impact (DI) Project was a smashing success with its successful Impact and Flyby Encounter on July 4, 2005 (UTC). Deep Impact launched the flight system, consisting of two spacecraft, on January 12, 2005 for an Encounter with comet Tempel 1 just 6 months later. The two spacecraft, known as the Flyby and the Impactor, were separated 24 hours prior to Encounter, whereby...
The Jet Propulsion Laboratory (JPL), Pratt & Whitney Rocketdyne, and Teledyne Energy Systems, Inc., have teamed together under JPL leadership to develop the next generation of advanced thermoelectric space reactor power conversion systems. The program goals are to develop the technologies needed to achieve a space nuclear power system specific mass goal of less than 30 kg/kW at the 100 kW power...
To support NASA's vision to increase the Deep Space Network (DSN) communications capability by at least 100 times the current capability of the 70m antennas, the option of large arrays of thousands of 12m antennas is being studied at the Jet Propulsion Laboratory (JPL), and an operational prototype is planned for the 2010 time frame. The flexibility of dynamically subdividing a large antenna array...
Concurrent engineering design (CED) teams have made routine the rapid development of point designs for space missions. The Jet Propulsion Laboratory's Team X is now evolving into a "next-generation" CED; in addition to a point design, the team develops a model of the local trade space. The process is a balance between the power of model-developing tools and the creativity of human experts,...
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