Review of 20 years of Research on Microwave and Millimeter-wave Lenses at “Instituto de Telecomunicações”
Fernandes, C. A.
Silveirinha, M. G.
IEEE Antennas and Propagation Magazine Vol. 57, Nº 1, pp. 250 - 268, February, 2015.
ISSN (print): 1045-9243
Scimago Journal Ranking: 0,82 (in 2015)
Digital Object Identifier: 10.1109/MAP.2015.2397156
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Starting from a challenge in the early nineties to develop a highly shaped beam dielectric lens antenna for a pilot 150 Mbit/s cellular mobile broadband system operating in the 60 GHz band, several new developments have been accomplished over more than 20 years at Instituto de Telecomunicações  in the areas of mm-wave shaped dielectric lens antennas and planar metamaterial lenses. We review here a few representative examples with numerical and experimental results, covering applications in mobile broadband communications, radiometry, satellite communications, multi-gigabit short-range communications and sub-lambda near-field target detection.