volume | PIER Journals

Abstract

This article describes an improved design procedure for shaped-beam reflectarrays, which is advanced mainly in accuracy and concision. Specifically, the excitation has been computed by a new approach named local simulation instead of mathematical modeling, which demonstrates more advantage in precision. The intersection approach has been applied to optimization, and it is improved by introducing a new multi-stage strategy into the synthesis process to avoid local minima. Moreover, the phase-only optimization, calculation of the reflection phase data table and the simulation verification processes are combined as a co-simulation procedure by VBScript (Visual Basic Script). This procedure is very beneficial to design reflectarrays with efficiency. As an example, a reflectarray consists of 621 dual-loop elements is optimized, and a good sectored-cosecant squared beam result is obtained.

1. Huang, J., Reflectarray Antenna, Wiley Online Library, 2008.

2. Chaharmir, M. R., et al. "Design of broadband, single layer dual-band large reflectarray using multi open loop elements," IEEE Transactions on Antennas and Propagation, Vol. 58, No. 9, 2875-2883, 2010.
doi:10.1109/TAP.2010.2052568

3. Chulmin, H., et al. "A high efficiency offset-fed X/Ka-dual-band reflectarray using thin membranes," IEEE Transactions on Antennas and Propagation, Vol. 53, No. 9, 2792-2798, 2005, 10.1109/TAP.2005.854531*10.1109/TAP.2005.854531.
doi:10.1109/TAP.2005.854531

4. Arrebola, M., et al. "Multifed printed reflectarray with three simultaneous shaped beams for LMDS central station antenna," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 6, 1518-1527, 2008.
doi:10.1109/TAP.2008.923360

5. Encinar, J. A., et al. "A transmit-receive reflectarray antenna for direct broadcast satellite applications," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 9, 3255-3264, 2011.
doi:10.1109/TAP.2011.2161449

6. Nayeri, P., et al. "Design and experiment of a single-feed quad-beam reflectarray antenna," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 2, 1166-1171, 2012.
doi:10.1109/TAP.2011.2173126

7. Bucci, O. M., et al. "Intersection approach to array pattern synthesis," IEE Proceedings H — Microwaves, Antennas and Propagation, Vol. 137, No. 6, 349-357, 1990.
doi:10.1049/ip-h-2.1990.0064

8. Nayeri, P., et al. "Design of single-feed reflectarray antennas with asymmetric multiple beams using the particle swarm optimization method," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 9, 4598-4605, 2013, 10.1109/TAP.2013.2268243*10.1109/TAP.2013.2268243.
doi:10.1109/TAP.2013.2268243

9. Zornoza, J. A. and J. A. Encinar, "Efficient phase-only synthesis of contoured-beam patterns for very large reflectarrays," Int. J. RF and Microwave Computer-Aided Engineering, Vol. 14, No. 5, 415-423, 2004.
doi:10.1002/mmce.20028

10. Encinar, J. A. and J. A. Zornoza, "Three-layer printed reflectarrays for contoured beam space applications," IEEE Transactions on Antennas and Propagation, Vol. 52, No. 5, 1138-1148, 2004.
doi:10.1109/TAP.2004.827506

11. Leberer, R. and W. Menzel, "A dual planar reflectarray with synthesized phase and amplitude distribution," IEEE Transactions on Antennas and Propagation, Vol. 53, No. 11, 3534-3539, 2005.
doi:10.1109/TAP.2005.858813

12. Vescovo, R., "Reconfigurability and beam scanning with phase-only control for antenna arrays," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 6, 1555-1565, 2008.
doi:10.1109/TAP.2008.923297

13. Changhua, W. and J. A. Encinar, "Efficient computation of generalized scattering matrix for analyzing multilayered periodic structure," IEEE Transactions on Antennas and Propagation, Vol. 43, No. 11, 1233-1242, 1995, 10.1109/TAP.1995.481174*10.1109/TAP.1995.481174.

14. Carrasco, E., et al. "Design, manufacture and test of a low-cost shaped-beam reflectarray using a single layer of varying-sized printed dipoles," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 6, 3077-3085, 2013.
doi:10.1109/TAP.2013.2254431

15. Carrasco, E., et al. "Demonstration of a shaped beam reflectarray using aperture-coupled delay lines for LMDS central station antenna," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 10, 3103-3111, 2008.
doi:10.1109/TAP.2008.929452

16. Arrebola, M., et al. "Multifed printed reflectarray with three simultaneous shaped beams for LMDS central station antenna," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 6, 1518-1527, 2008.
doi:10.1109/TAP.2008.923360

Dr. Jian-Feng Yu

Dr. Lei Chen

Dr. Jing Yang

Professor Xiao-Wei Shi