Engineering topics
Publications and source records attributed to Huang, J..
This paper surveys the technologies for the PR-2 and describes the developments in the areas of: membrane antennas with inflatable structure, Ka-band phased arrays, and real time digital pulse compression.
This work addresses the design, analysis and test of omni-directional antennas at 401.5 MHz and 437.1 MHz frequencies, on Mars Orbital Sample (OS) return canisters, which are part of a Mars Sample Return (MSR) mission.
An inflatable Ka-band three-meter reflectarray is being developed to achieve low mass and small launch-vehicle stowage volume for future deep-space spacecraft telecommunication antenna applications.
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In the paper, we will present a system concept for a second-generation spaceborne precipitation radar (PR-2) for operations at the Low Earth Orbit (LEO).
As space vehicles become smaller, real estate for allocating the vehicles' instruments and components becomes a premium quantity.
JPL/NASA's deep-space exploration and Earth remote sensing programs have been placing emphasis on reducing the mass and stowage volume of their spacecraft's high-gain and large apertur antennas.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Our purpose in coupling oscillators together is to achieve high radiated power through the spatial power combining which results when the oscillators are injection locked to each other.
There is a critical need for enabling technologies that will reduce the mass, physical size and cost of major spacecraft components.
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In order to meet the increasingly stringent budget constraints for space missions, NASA is currently developing lightweight spacecrafts with reduced stowed volume but with increased capabilities.
Three inflatable array antennas recently developed for spacecraft applications are a 3.3m x 1.0m L-band synthetic aperture radar (SAR) array, a 1.0m-diameter X-band telecom reflectarray, and a 3m-diameter Ka-band telecom reflectarray.
JPL/NASA's deep-space exploration has been placing emphasis on reducing the mass and storage volume of its spacecraft's high-gain and large aperture antennas.