A deformable mirror-based optical beamforming system for phased array antennas
- 1 June 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 2 (6) , 444-446
- https://doi.org/10.1109/68.56613
Abstract
Microwave carrier generation along with the signal processing required for dynamic beamsteering of a high-resolution phased array antenna with an arbitrary radiation pattern is accomplished using optical components. It is shown that a deformable mirror type spatial light modulator can establish a truly arbitrary continuous optical phasefront which is directly converted to spatial RF phase information by an optical heterodyne system. Experimental results simulating the performance of the actual system are presented. A spatially integrated optical implementation providing mechanical stability and essentially eliminating the drift problems usually encountered in free space systems is presented.Keywords
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