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  • Cited by 2
  • Print publication year: 2008
  • Online publication date: July 2010

4 - Designs and optimizations of EBG structures

Summary

After demonstrating some interesting characteristics of EBG structures, this chapter focuses on how to achieve these characteristics by properly designing the EBG structures. A parametric study on the mushroom-like EBG structure will be presented first. Then two popularly used planar EBG structures, mushroom-like EBG surface and uni-planar EBG surface, are compared with each other to develop some selection guidelines for potential applications. Novel EBG designs such as polarization-dependent EBG (PDEBG), compact spiral EBG, and stack EBG structures will also be studied. Furthermore, the particle swarm optimization (PSO) technique is implemented to design EBG surfaces. At the end of this chapter, some recent research trends are summarized, including space filling curve EBG surfaces, multi-band EBG designs and reconfigurable EBG structures.

Parametric study of a mushroom-like EBG structure

Electromagnetic properties of an EBG structure are determined by its physical dimensions. For a mushroom-like EBG structure shown in Fig. 4.1, there are four main parameters affecting its performance [1], namely, patch width W, gap width g, substrate thickness h, and substrate permittivity εr. In this section, the effects of these parameters are investigated one by one in order to obtain some engineering guidelines for EBG surface designs. Note that the vias' radius r has a trivial effect because it is very thin compared to the operating wavelength.

In this study, the FDTD/PBC technique [2–3] is used to characterize the reflection phase of the EBG structure. Normal incidence is considered here.

References
Yang, F. and Rahmat-Samii, Y., “Reflection phase characterizations of the Electromagnetic Band Gap ground plane for low profile wire antenna applications,” IEEE Trans. Antennas Propagat., vol. 51 , no. 10, 2691–703, 2003.
Taflove, A. and Hagness, S., Computational Electrodynamics: The Finite Difference Time Domain Method, 2nd edn., Artech House, 2000.
Mosallaei, H. and Rahmat-Samii, Y., “Periodic bandgap and effective dielectric materials in electromagnetics: characterization and applications in nanocavities and waveguides,” IEEE Trans. Antennas Propagat., vol. 51 , no. 3, 549–63, 2003.
Yang, F.-R., Ma, K.-P., Qian, Y., and Itoh, T., “A novel Transverse ElectroMagnetic waveguide using uniplanar compact photonic-bandgap (UC-Photonic Band Gap) structure,” IEEE Trans. Microwave Theory Tech., vol. 47 , no. 11, 2092–8, 1999.
Cocciolo, R., Yang, F. R., Ma, K. P., and Itoh, T., “Aperture coupled patch antenna on UC-Photonic Band Gap substrate,” IEEE Trans. Microwave Theory Tech., vol. 47, 2123–30, 1999.
Aminian, A., Yang, F., and Rahmat-Samii, Y., “In-phase reflection and EM wave suppression characteristics of electromagnetic band gap ground planes,” 2003 IEEE APS Int. Symp. Dig., vol. 4, pp. 430–3, June 2003.
Yang, F. and Rahmat-Samii, Y., “Polarization dependent electromagnetic band-gap surfaces: characterization, designs, and applications,” 2003 IEEE APS Int. Symp. Dig., vol. 3, pp. 339–42, June 2003.
Yang, F. and Rahmat-Samii, Y., “Polarization dependent electromagnetic band gap (Polarization-Dependent Electromagnetic Band Gap) structures: designs and applications,” Microwave Optical Tech. Lett., vol. 41 , no. 6, 439–44, 2004.
Maci, S., Gentili, G. B., Piazzesi, P., and Salvador, C., “Dual-band slot-loaded patch antenna,” IEE Proceedings on Microwaves Antennas & Propagation, vol. 142 , no. 3, pp. 225–32, June 1995.
Zhang, X.-X. and Yang, F., “The study of slit cut on the microstrip antenna and its applications,” Microwave Optical and Tech. Lett., vol. 18 , no. 4, 297–300, 1998.
Yang, F. and Zhang, X.-X., “Slitted small microstrip antenna,” IEEE APS Int. Symp. Dig., pp. 1236–9, June 1998.
Munk, B. A., Frequency Selective Surfaces: Theory and Design, John Wiley & Sons, Inc., 2000.
Yang, F. and Rahmat-Samii, Y., “A low profile single dipole antenna radiating circularly polarized waves,” IEEE Trans. Antennas Propagat., vol. 53 , no. 9, 3083–6, 2005.
Balanis, C., Advanced Engineering Electromagnetics, Wiley, 1989.
McVay, J. and Engheta, N., “High impedance metamaterial surfaces using Hilbert-curve inclusions,” IEEE Microw. Wireless Co. Lett., vol. 14 , no. 3, 130–2, 2004.
Simovski, C. R., Maagt, P., and Melchakova, I., “High-impedance surfaces having stable resonance with respect to polarization and incidence angle,” IEEE Trans. Antennas Propagat., vol. 53 , no. 3, 908–14, 2005.
Hiranandani, M. A., Yakovlev, A. B., and Kishk, A. A., “Artificial magnetic conductors realised by frequency-selective surfaces on a grounded dielectric slab for antenna applications,” IEE Proc. Microw. Antennas Propag., vol. 153 , no. 5, 487–93, 2006.
Yang, L., Fan, M., and Feng, Z., “A spiral Electromagnetic Bandgap (Electromagnetic Band Gap) structure and its application in microstrip antenna arrays,” 2005 APMC Proceedings, vol. 3, December 2005.
Yang, F., Chen, J., Rui, Q., and Elsherbeni, A., “A simple and efficient Finite Difference Time Domain/Periodic Boundary Condition algorithm for periodic structure analysis,” Radio Sci., vol. 42 , no. 4, RS4004, 2007.
Ansoft Designer, version 2.0, Ansoft Corporation, 2004.
Kim, Y., Yang, F., and Elsherbeni, A., “Compact artificial magnetic conductor designs using planar square spiral geometry,” Progress In Electromagnetics Research, PIER 77, 43–54, 2007.
Sievenpiper, D. F., High-Impedance Electromagnetic Surfaces, Ph. D. dissertation at University of California, Los Angeles, 1999.
Kennedy, J. and Eberhart, R., “Particle swarm optimization,” Proc. 1995 Int. Conf. Neural Networks, vol. IV, pp. 1942–8.
Robinson, J. and Rahmat-Samii, Y., “Particle swarm optimization in electromagnetics,” IEEE Trans. Antennas Propagat., vol. 52 , no. 2, 397–407, 2004.
Rahmat-Samii, Y., Gies, D., and Robinson, J., “Particle swarm optimization (Particle Swarm Optimization): a novel paradigm for antenna designs,” The Radio Science Bulletin, vol. 305, 14–22, September 2003.
Rahmat-Samii, Y. and Michielssen, E. eds., Electromagnetic Optimization by Genetic Algorithms, John Wiley & Sons Inc., 1999.
Jin, N. and Rahmat-Samii, Y., “Advances in particle swarm optimization for antenna designs: real-number, binary, single-objective and multiobjective implementations,” IEEE Trans. Antennas Propagat., vol. 55 , no. 3, 556–67, 2007.
Tavallaee, A. and Rahmat-Samii, Y., “A novel strategy for broadband and miniaturized Electromagnetic Band Gap designs: hybrid MTL theory and Particle Swarm Optimization algorithm,” IEEE APS Int. Symp. Dig., pp. 161–4, June 2007.
Jin, N. and Rahmat-Samii, Y., “Parallel particle swarm optimization and finite difference time-domain (Particle Swarm Optimization/Finite Difference Time Domain) algorithm for multiband and wide-band patch antenna designs,” IEEE Trans. Antennas Propagat., vol. 53 , no. 11, 3459–68, 2005.
Jin, N. and Rahmat-Samii, Y., “Particle swarm optimization of miniaturized quadrature reflection phase structure for low-profile antenna applications,” IEEE APS Int. Symp. Dig., vol. 2B, pp. 255–8, July 2005.
Aminian, A., Yang, F., and Rahmat-Samii, Y., “Bandwidth determination for soft and hard ground planes by spectral Finite Difference Time Domain: a unified approach in visible and surface wave regions,” IEEE Trans. Antennas Propagat., vol. 53 , no. 1, 18–28, 2005.
J. McVay, N. Engheta, and A. Hoorfar, “Chapter 14: Space-filling curve high-impedance ground planes,” in Metamaterials: Physics and Engineering Explorations, edited by Engheta, N. and Ziolkowski, R., John Wiley & Sons Inc., 2006.
Zhu, J., Hoorfar, A., and Engheta, N., “Peano antennas,” IEEE Antennas Wireless Propag. Lett., vol. 3, 71–4, 2004.
McVay, J., Hoorfar, A., and Engheta, N., “Radiation characteristics of microstrip dipole antennas over a high-impedance metamaterial surface made of Hilbert inclusions,” Dig. 2003 IEEE MTT Int. Microwave Symp., pp. 587–90.
Kern, D. J., Werner, D. H., Monorchio, A., Lanuzza, L., and Wilhelm, M. J., “The design synthesis of multiband artificial magnetic conductors using high impedance frequency selective surfaces,” IEEE Trans. Antennas Propag, vol. 53 , no. 1, part 1, 8–17, 2005.
Sievenpiper, D., Schaffner, J., Loo, B., Tangonan, G., Harold, R., Pikulski, J., and Garcia, R., “Electronic beam steering using a varactor-tuned impedance surface,” IEEE APS Int. Symp. Dig., vol. 1, pp. 174–7, July 2001.
Liang, T., Li, L., Bossard, J. A., Werner, D. H., Mayer, T. S., “Reconfigurable ultra-thin Electromagnetic Band Gap absorbers using conducting polymers,” IEEE APS Int. Symp. Dis., vol. 2B, pp. 204–7, 3–8 July 2005.
D. Sievenpiper, “Chapter 11: Review of theory, fabrication, and applications of high impedance ground planes,” in Metamaterials: Physics and Engineering Explorations, edited by Engheta, N. and Ziolkowski, R., John Wiley & Sons Inc., 2006.
Sievenpiper, D. F., Schaffner, J. H., Song, H. J., Loo, R. Y., and Tangonan, G., “Two-dimensional beam steering using an electrically tunable impedance surface,” IEEE Trans. Antennas Propagat., vol. 51 , no. 10, 2713–22, 2003.