Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 11, Issue -, Pages 1125-1128Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2012.2218092
Keywords
Antenna radiation patterns; conformal arrays; phased arrays; transformation optics/electromagnetics
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Based on quasi-conformal coordinate transformation, lens designs for conformal array antenna applications are presented. Potentially over a broad bandwidth for the two-dimensional TE polarization, a physically linear array can be transformed into a virtual curved array, or vice versa, using a lens having only nonmagnetic medium parameters. Lens designs for transforming between linear and cylindrical arrays in conformal conducting ground planes as well as their predicted scanning performances are shown. Such lenses can be designed and applied to existing array antennas to enable new scanning capabilities.
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