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Article

Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †

1
Airbus Defence and Space, Gunnels Wood Road, Stevenage SG1 2AS, UK
2
Information, Processing and Telecommunications Center, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
3
Department of Electrical Engineering, University of Oviedo, 33203 Gijón, Spain
*
Author to whom correspondence should be addressed.
The authors dedicate this work to the memory of their beloved friend and colleague, the late Mariano Barba Gea, who actively supported the team with his brilliant professional skills.
Sensors 2018, 18(4), 1100; https://doi.org/10.3390/s18041100
Received: 10 January 2018 / Revised: 21 March 2018 / Accepted: 31 March 2018 / Published: 5 April 2018
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2017)
This article demonstrated an accurate analysis technique for dual-reflectarray antennas that take into account the angle of incidence of the impinging electric field on the main reflectarray cells. The reflected field on the sub and the main reflectarray surfaces is computed using Method of Moments in the spectral domain and assuming local periodicity. The sub-reflectarray is divided into groups of elements and the field radiated by each group is used to compute the incident and reflected field on the main reflectarray cells. A 50-cm demonstrator in Ku-band that provides European coverage has been designed, manufactured and tested to validate the analysis technique. The measured radiation patterns match the simulations and they fulfill the coverage requirements, achieving a cross-polar discrimination better than 25 dB in the frequency range: 12.975–14.25 GHz. View Full-Text
Keywords: dual-reflectarray; contoured beam; Ku-band dual-reflectarray; contoured beam; Ku-band
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MDPI and ACS Style

Tienda, C.; Encinar, J.A.; Barba, M.; Arrebola, M. Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics. Sensors 2018, 18, 1100. https://doi.org/10.3390/s18041100

AMA Style

Tienda C, Encinar JA, Barba M, Arrebola M. Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics. Sensors. 2018; 18(4):1100. https://doi.org/10.3390/s18041100

Chicago/Turabian Style

Tienda, Carolina, Jose A. Encinar, Mariano Barba, and Manuel Arrebola. 2018. "Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics" Sensors 18, no. 4: 1100. https://doi.org/10.3390/s18041100

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