TY - JOUR
T1 - Angularly Stable Frequency Selective Surface Combined with a Wide-Scan Phased Array
AU - Yepes, Cristina
AU - Cavallo, Daniele
AU - Gandini, Erio
AU - Monni, Stefania
AU - Neto, Andrea
AU - Van Vliet, Frank E.
N1 - Funding Information:
Manuscript received July 21, 2017; revised November 8, 2017; accepted November 26, 2017. Date of publication December 1, 2017; date of current version February 1, 2018. This work was supported in part by the Netherlands Organisation for Applied Scientific Research (TNO) DO-AIO Fund and in part by the TNO V1512 Defense Radar Program. (Corresponding author: Cristina Yepes.) C. Yepes is with the Microelectronics Department of the Electrical Engineering, Mathematics and Computer Science Faculty, Delft University of Technology, 2628 CD Delft, The Netherlands, and also with the Department of Radar Technology, Netherlands Organisation for Applied Scientific Research, 2597 AK The Hague, The Netherlands (e-mail: [email protected]) D. Cavallo and A. Neto are with the Microelectronics Department of the Electrical Engineering, Mathematics and Computer Science Faculty, Delft University of Technology, 2628 CD Delft, The Netherlands.
Publisher Copyright:
© 2017 IEEE.
PY - 2018/2
Y1 - 2018/2
N2 - A five-layer frequency selective surface (FSS) composed of subwavelength elements with large harmonic rejection bandwidth is presented. The FSS design is based on an equivalent circuit model, where the interlayer interaction is only described with a single transmission line representing the fundamental Floquet wave. A prototype of the designed FSS is fabricated, and the measured response exhibits good stability over a wide conical incidence range up to 45°. The FSS is combined with a wide-scanning connected array of dipoles to implement a phased array with integrated filtering properties. A dispersion analysis is performed to define the distance between the array and the FSS that avoids the propagation of surface waves between the combined structures, allowing to maximize the radiation efficiency. The performance of the array combined with the FSS is experimentally characterized, showing high-order harmonic rejection better than 17 dB over a large bandwidth.
AB - A five-layer frequency selective surface (FSS) composed of subwavelength elements with large harmonic rejection bandwidth is presented. The FSS design is based on an equivalent circuit model, where the interlayer interaction is only described with a single transmission line representing the fundamental Floquet wave. A prototype of the designed FSS is fabricated, and the measured response exhibits good stability over a wide conical incidence range up to 45°. The FSS is combined with a wide-scanning connected array of dipoles to implement a phased array with integrated filtering properties. A dispersion analysis is performed to define the distance between the array and the FSS that avoids the propagation of surface waves between the combined structures, allowing to maximize the radiation efficiency. The performance of the array combined with the FSS is experimentally characterized, showing high-order harmonic rejection better than 17 dB over a large bandwidth.
KW - Frequency selective surface (FSS)
KW - phased array antennas
KW - spatial filters
KW - n/a OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85037659464&partnerID=8YFLogxK
U2 - 10.1109/TAP.2017.2778768
DO - 10.1109/TAP.2017.2778768
M3 - Article
AN - SCOPUS:85037659464
SN - 0018-926X
VL - 66
SP - 1046
EP - 1051
JO - IEEE transactions on antennas and propagation
JF - IEEE transactions on antennas and propagation
IS - 2
M1 - 8125158
ER -