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Proceedings Paper

Multi-beam millimeter wave focal plane array airborne imaging system
Author(s): Robert W. Haas; Dennis H. Brest; Robert J. Bowers
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Paper 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.

Paper Details

Date Published: 19 August 1994
PDF: 10 pages
Proc. SPIE 2211, Millimeter and Submillimeter Waves, (19 August 1994); doi: 10.1117/12.183006
Show Author Affiliations
Robert W. Haas, Aerojet Electronic Systems (United States)
Dennis H. Brest, Aerojet Electronic Systems (United States)
Robert J. Bowers, Aerojet Electronic Systems (United States)


Published in SPIE Proceedings Vol. 2211:
Millimeter and Submillimeter Waves
Mohammed N. Afsar, Editor(s)

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