Publication in conference proceedings
Reducing beam aberrations of mechanical scanning transmit-array antennas
Sérgio Matos (Matos, S. A.); Jorge Rodrigues da Costa (Costa, J. R.); Carlos António Cardoso Fernandes (Fernandes, C. A.); Artur A. Alves (Alves, A. A.); Nelson J. G. Fonseca (Fonseca, N. J. G.);
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
Year (definitive publication)
2020
Language
English
Country
United States of America
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Abstract
There is a new demand for high gain antennas capable of achieving wide-angle beam steering in the microwave and millimeter wave (mmW) regimes. This work focuses on transmit-array (TA) antennas that steer the beam using only in-plane displacement of the TA or feed. We showed in previous works that., for some applications., this solution can be a viable alternative to the more costly electronic beam steering of phased arrays. However., it is necessary to balance the trade-offs between several factors such as gain., beam aberrations., antenna size., maximum scanning angle and the complexity of the mechanical steering system. This communication surveys different techniques that we developed to improve the overall scanning performance of these antennas.
Acknowledgements
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Keywords
Wide-angle scanning,Mechanical beam steering,Transmit-arrays,High gain,KA band,Satellite on-the-move
  • Electrical Engineering, Electronic Engineering, Information Engineering - Engineering and Technology
Funding Records
Funding Reference Funding Entity
PTDC/EEI-TEL/30323/2017 Fundação para a Ciência e a Tecnologia
UIDB/EEA/50008/2020 Fundação para a Ciência e a Tecnologia

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