Abstract
The concept and the theoretical analysis of near-field focusing by a passive planar nonuniform leaky-wave interface are presented. The nonuniform interface, using a recently proposed uniform backfire-to-endfire leaky-wave antenna, is designed to exhibit the appropriate phase-conjugated distribution for focus formation at a desired point. A simplified nonlinear phased-array approach is proposed to predict the dispersion of the focus. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 416–418, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20652
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