Reconfigurable Array Designed for Directional EM Propagation using Energy Band Theory of Photonic Crystals
Keywords:
Antennas, directional EM propagation, metal photonic crystals, reconfigurable arrayAbstract
A type of reconfigurable array consisting of metal rods was designed for directional electromagnetic (EM) wave propagation at microwave frequency. By adding or removing a part of metal rods, the designed array can be reconfigured between a hexagonal-lattice array and a rectangular-lattice array. As a result, the directional radiation pattern can be changed. In this study, the method of designing metal photonic crystals array is proposed. Dispersion curves of Energy band theory of photonic crystals were computed and integrated with the theory of finite thickness periodic arrays. Measurement results are well consistent with the simulation results, suggesting that the antenna as a radiation source located in the center of the hexagonal-lattice array could reach good directionality at the designed frequency. When the array is transformed into the rectangular-lattice array by adding or removing a part of metal rods, the directional radiation pattern can be changed ±30 degrees at the same frequency.
Downloads
References
S. Ceccuzzi, L. Pajewski, C. Ponti, and G. Schettini, “Directive EBG antennas: a comparison between two different radiating mechanisms,” IEEE Trans. Antennas Propag., vol. 62, no. 10, pp. 5420-5424, 2014.
S. Maktoobi and S. Bahadori-Haghighi, “Investigation and simulation of photonic crystal directional coupler switch,” Electron. Lett., vol. 51, no. 13, pp. 1016-1018, 2015.
H. Ouassal, J. Shaker, L. Roy, M. R. Chaharmir, and K. Hettak, “Multi-layer EBG slab waveguide based on open square rings,” IET Microw. Antennas Propag., vol. 11, no. 9, pp. 1241-1247, 2017.
Y. Guo, S. Kim, X. Liu, H. Gao, and G. P. Li, “A compact configurable EBG filter on PCB,” IEEE Trans. Compon. Packag. Technol., vol. 5, no. 5, pp. 668-674, 2015.
S. Enoch, G. Tayeb, and D. Maystre, “Dispersion diagrams of Bloch modes applied to the design of directive sources,” PIER, vol. 41, no. 1, pp. 61-81, 2003.
B. Gralak, S. Enoch, and G. Tayeb, “Anomalous refractive properties of photonic crystals,” J. Opt. Soc. AM. A., vol. 17, no. 6, pp. 1012-1020, 2000.
P. R. Villeneuve, S. Fan, and J. D. Joannopoulos, “Microcavities in photonic crystals: Mode symmetry, tunability, and coupling efficiency,” Phys. Rev. B Condens. Matter, vol. 54, no. 11, pp. 7837-7842, 1996.
Z. Yuan, J. Haus, and K. Sakoda, “Eigenmode symmetry for simple cubic lattices and the transmission spectra,” Optics Express, vol. 3, no. 1, pp. 19-27, 1998.
Y. Zhang, G. Lu, and D. Zeng, “Design of directionality of the antenna using two-dimensional metal photonic crystal,” International Symposium on Electromagnetic Compatibility IEEE, 2017.
