the use of mature industry ready processes is a necessity throughout this

The use of mature industry ready processes is a

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the use of mature, industry-ready processes is a necessity throughout this effort, with the hierarchy of chosen components being: commercially available (off-the-shelf (COTS)), followed by the use of commercial processes and fabrication techniques when COTS are not available. Finally, specialized components requiring specific design work, fabrication and tooling (such as the development of a specific SiGe beamforming chip set) should utilize commercial industry known processes. PHASE I: Design an active imaging W-band sensor utilizing silicon-based beamforming and power amplification technology to address the following requirements associated with this topic: at least a 90 degree field of view in the forward direction with a synthetically formed beam scanning at 30 frames per second to distances up to 100 m using an aperture smaller than 25 cm2. The associated number of elements (minimum of 8) in the array, spatial resolution and effective antenna gain, transmit power requirements, beamforming methodology, and associated control must be specified for the proposed system assuming a single heterodyne receiver. This is not a radar, so range measurement is not required. The design must be informed by quantitative trade investigations of aperture size, weight, frequency, power requirements and number of apertures (possible interferometric solution), thermal management, and direct current (DC) power requirements. Given that technologies based on SiGe or Si CMOS chipsets are required, solutions that promise lightweight, low power consumption, low cost performance will be favored. The integrated array may consist of stacked linear sub-arrays, each with elements spaced roughly lambda/2 apart to maximize beamsteering. The deliverable for Phase I will be a detailed, component-level design of a prototype sensor array based on this thorough trade analysis. PHASE II: Construct, characterize, and deliver the prototype phased array sensor designed in Phase I. This array should be capable of beam-steering in 2 dimensions with the specified range, resolution, and field of view. Tests of the prototype must verify beamsteering capability, power density, thermal management, and gain profiles. The final array size should consist of at least 8 elements in a scalable architecture that could be expanded to a 2^n element array. ARMY - 16
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PHASE III: Develop a fully integrated, platform-specific, system-engineered, W-band imaging sensor based on the methodology and prototype developed here. From this sensor, many spin-off applications can be envisioned, including imaging through obscurants to assist in degraded visual environments, all weather area surveillance, fire and rescue in challenging environments, omni-directional, high bandwidth wireless datalinks, and a RADAR variant that could be used for collision avoidance in semi- or fully-autonomous ground and air vehicles.
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  • Fall '13
  • Soren
  • The Land, Symposium, United States Department of Defense, United States Army, army sbir, army sbir program

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