Focused near-field adaptive nulling: experimental investigation
- 1 January 1990
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 186-189 vol.1
- https://doi.org/10.1109/aps.1990.115079
Abstract
Focused near-field adaptive nulling has been demonstrated using an experimental linear phased array and a four-channel receiver. The measured adaptive cancellation of one near field interference source was in good agreement with theoretical predictions. The theory assumes that a dipole array without ground plane is the approximate dual of a rectangular waveguide array with ground plane. The results indicate that adaptive antenna performance testing using focused near-field adaptive nulling at approximately one aperture diameter range distance is a viable alternative to conventional far-field testing.<>Keywords
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