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19 August 1994 Multi-beam millimeter wave focal plane array airborne imaging system
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Proceedings Volume 2211, Millimeter and Submillimeter Waves; (1994) https://doi.org/10.1117/12.183006
Event: Millimeter and Submillimeter Waves and Applications: International Conference, 1994, San Diego, CA, United States
Abstract
The design, fabrication, and test of a multiple beam millimeter wave airborne imaging system is presented. This radiometric system operates at 81 - 98 GHz and consists of a f/D equals 3 offset parabolic reflector antenna fed by an array of 24 feed/receiver elements. The receivers are built as six, four element modules, each of which can be positioned anywhere on the focal plane plate. Fully populated, the plate can accommodate 48 modules in four rows of twelve (192 elements total). The polarization of all four elements in a module is the same, but each module can be rotated 90 degrees to receive either vertically or horizontally polarized radiation. Progress in the development of MMIC based receivers and improved feed arrays for insertion into this system is also presented.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert W. Haas, Dennis H. Brest, and Robert J. Bowers "Multi-beam millimeter wave focal plane array airborne imaging system", Proc. SPIE 2211, Millimeter and Submillimeter Waves, (19 August 1994); https://doi.org/10.1117/12.183006
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