Designing a sub-wavelength array to change the direction of the radiation wave to a desired angle using variable Huygens surfaces

Document Type : Research Article

Authors

Department of Electrical Engineering, The Iran University of Science and Technology (IUST), Tehran. Iran

Abstract

Since Huygens structures with phase shift lead to beam rotation, this manuscript discusses a phase shifter structure for the Huygens surface based on Tapered Slot Transition in the frequency range of 9.95-10.2 GHz using varactor diodes. By inducing an electric field along the tracks and placing diodes, the phase can be changed up to 200 degrees. With unit cells of 0.2  -that this size is the smallest possible size for beam rotation structures - and a mega cell of 4 unit cells, incident angles of 0-15 degrees can be converted to transmitted angles of 10-45 degrees. The unit cell has been fabricated and it is shown that the measurement results are in good agreement with the simulation one.

Keywords

Main Subjects

References

[1]          K. Chen et al., "A Reconfigurable Active Huygens' Metalens," arXiv:1702.01920, vol. arXiv:1702.01920, 02/07 2017, doi: 10.1002/adma.201606422.
[2]          J. Tang, S. Xu, F. Yang, and M. Li, "Design and Measurement of a Reconfigurable Transmitarray Antenna With Compact Varactor-Based Phase Shifters," IEEE Antennas and Wireless Propagation Letters, vol. 20, no. 10, pp. 1998-2002, 2021, doi: 10.1109/LAWP.2021.3101891.
[3]          Q. He, S. Sun, S. Xiao, and L. Zhou, "High‐Efficiency Metasurfaces: Principles, Realizations, and Applications," Advanced Optical Materials, vol. 6, 2018.
[4]          V. Ataloglou and G. V. Eleftheriades, Arbitrary Wave Transformations with Huygens' Metasurfaces through Surface-Wave Optimization. 2021.
[5]          Y. Wang et al., "Huygens' Metasurface With Stable Transmission Response Under Wide Range of Incidence Angle," IEEE Antennas and Wireless Propagation Letters, vol. 21, pp. 630-634, 03/03 2022, doi: 10.1109/LAWP.2022.3140749.
[6]          L. Valletti, S. Fantauzzi, and F. Di Paolo, "An Innovative Lens Type FinLine to Microstrip Transition," Journal of Infrared, Millimeter and Terahertz Waves, vol. 43, 09/01 2022, doi: 10.1007/s10762-022-00869-z.
[7]          X. Shan, "Study of spatial power combining in closed waveguides," Doctor of Philosophy, School of Electrical & Electronic Engineering, Nanyang Technological University, 2013.
[8]          N. yu et al., "Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction," Science (New York, N.Y.), vol. 334, pp. 333-7, 09/01 2011, doi: 10.1126/science.1210713.
[9]          L. Silva, Z. Chu, P. Xiao, and A. Cerqueira S. Jr, "A varactor-based 1024-element RIS design for mm-waves," Frontiers in Communications and Networks, vol. 4, 03/22 2023, doi: 10.3389/frcmn.2023.1086011.
[10]        S. Tian, H. Liu, and L. Li, "Design of 1-Bit Digital Reconfigurable Reflective Metasurface for Beam-Scanning," Applied Sciences (Switzerland), vol. 7, 08/28 2017, doi: 10.3390/app7090882.
[11]        G. Chaudhary and Y. Jeong, "Wideband Tunable Differential Phase Shifter With Minimized In-Band Phase Deviation Error," IEEE Microwave and Wireless Components Letters, vol. 29, no. 7, pp. 468-470, 2019, doi: 10.1109/LMWC.2019.2920270.
AUT Journal of Electrical Engineering
Volume 57, Issue 1
2025
Pages 43-54

Files

Share

How to cite

Statistics