1 July 1990 Near-field microwave imaging of dielectric anomalies: antennas and processing
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Proceedings Volume 1319, Optics in Complex Systems; (1990) https://doi.org/10.1117/12.34757
Event: 15th International Optics in Complex Systems, 1990, Garmisch, Germany
Abstract
In microwave systems for detecting or imaging buried dielectric anomalies, a common technique is to search for reflectance variations by mechanically scanning an antenna over an area. The antenna usually operates in its and the object's nearfields to reduce diffraction spreading so that the reflectance distribution resembles the object's shape and is thus an image. Although mechanical scanning is reliable, it is slow because data acquisition is sequential. Data acquisition can be accelerated by an antenna array. An array provides spatially parallel data channels. If a single transmitter and receiver unit are used, acquisition is sequential but very fast with solid state switches. If each antenna has a transmitter and receiver, acquisition is simultaneous, and costs increase.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
W. Davis, W. Davis, James T. Nilles, James T. Nilles, E. L. Rope, E. L. Rope, Gus P. Tricoles, Gus P. Tricoles, } "Near-field microwave imaging of dielectric anomalies: antennas and processing", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); doi: 10.1117/12.34757; https://doi.org/10.1117/12.34757
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