TY - JOUR
T1 - Contoured-beam dual-band dual-linear polarized reflectarray design using a multiobjective multistage optimization
AU - Prado, Daniel R.
AU - Arrebola, Manuel
AU - Pino, Marcos R.
AU - Goussetis, George
N1 - Funding Information:
Manuscript received December 5, 2019; revised March 27, 2020; accepted April 23, 2020. Date of publication May 14, 2020; date of current version October 29, 2020. This work was supported in part by the Ministerio de Ciencia, Innovación y Universidades under Project TEC2017-86619-R (ARTEINE), in part by the Ministerio de Economía, Industria y Competitividad under Project TEC2016-75103-C2-1-R (MYRADA), in part by the Gobierno del Principado de Asturias/FEDER under Project GRUPIN-IDI/2018/000191, and in part by the Ministerio de Educación, Cultura y Deporte/Programa de Movilidad “Salvador de Madariaga” under Grant PRX18/00424. (Corresponding author: Daniel R. Prado.) Daniel R. Prado, Manuel Arrebola, and Marcos R. Pino are with the Department of Electrical Engineering, Universidad de Oviedo, 33203 Gijón, Spain (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 2020 IEEE.
PY - 2020/11
Y1 - 2020/11
N2 - This communication presents a dual-band design procedure applied to a very large contoured-beam reflectarray with improved copolar and cross-polarization performances for direct broadcast satellite (DBS) in dual-band dual-linear polarization. The reflectarray is elliptical, with the axes of 1.10 and 1.08 m, and provides coverage for South America in transmit (11.70–12.20 GHz) and receive (13.75–14.25 GHz) bands. The novel dual-band design approach is based on the use of a multiresonant unit cell with several degrees of freedom (DoFs). It is divided into several stages to facilitate convergence toward a broadband high-performance reflectarray. First, a narrowband layout is obtained at the central frequency with a phase-only synthesis. Then, using a limited number of DoFs, a copolar-only optimization is carried out in both frequency bands maximizing the copolar figure of merit. Finally, increasing the number of DoFs, cross-polarization requirements are also included in the optimization procedure. The optimized antenna complies with all copolar and cross-polarization requirements with a loss budget of at least 0.62 dB in both receive and transmit bands, outperforming earlier works in the literature while using a smaller antenna than previously proposed for this mission.
AB - This communication presents a dual-band design procedure applied to a very large contoured-beam reflectarray with improved copolar and cross-polarization performances for direct broadcast satellite (DBS) in dual-band dual-linear polarization. The reflectarray is elliptical, with the axes of 1.10 and 1.08 m, and provides coverage for South America in transmit (11.70–12.20 GHz) and receive (13.75–14.25 GHz) bands. The novel dual-band design approach is based on the use of a multiresonant unit cell with several degrees of freedom (DoFs). It is divided into several stages to facilitate convergence toward a broadband high-performance reflectarray. First, a narrowband layout is obtained at the central frequency with a phase-only synthesis. Then, using a limited number of DoFs, a copolar-only optimization is carried out in both frequency bands maximizing the copolar figure of merit. Finally, increasing the number of DoFs, cross-polarization requirements are also included in the optimization procedure. The optimized antenna complies with all copolar and cross-polarization requirements with a loss budget of at least 0.62 dB in both receive and transmit bands, outperforming earlier works in the literature while using a smaller antenna than previously proposed for this mission.
KW - Broadband reflectarray
KW - Contoured beam
KW - Direct broadcast satellite (DBS) antennas
KW - Optimization
KW - Satellite antennas
KW - Transmit–receive antennas
UR - http://www.scopus.com/inward/record.url?scp=85086303627&partnerID=8YFLogxK
U2 - 10.1109/TAP.2020.2993014
DO - 10.1109/TAP.2020.2993014
M3 - Article
AN - SCOPUS:85086303627
SN - 0018-926X
VL - 68
SP - 7682
EP - 7687
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 11
ER -