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Wire-medium loaded planar structures: modal analysis, near fields, and radiation features

Published online by Cambridge University Press:  12 April 2016

Davide Comite ,
Paolo Baccarelli ,
Paolo Burghignoli  and
Alessandro Galli
Davide Comite*
Affiliation:
Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome – Via Eudossiana 18, 00184 Rome, Italy. Phone: +39 06 44585678
Paolo Baccarelli
Affiliation:
Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome – Via Eudossiana 18, 00184 Rome, Italy. Phone: +39 06 44585678
Paolo Burghignoli
Affiliation:
Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome – Via Eudossiana 18, 00184 Rome, Italy. Phone: +39 06 44585678
Alessandro Galli
Affiliation:
Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome – Via Eudossiana 18, 00184 Rome, Italy. Phone: +39 06 44585678
*
Corresponding author:D. Comite Email: [email protected]; comite/baccarelli/[email protected]
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Abstract

A novel transmission-line model is used for the analysis of planar structures, including wire-medium (WM) slabs with vertically aligned wires. The network formalism allows for an effective determination of the relevant spectral Green's functions, of the modal dispersion equation via transverse resonance, as well as of the far-field radiation pattern produced by simple sources via reciprocity, as opposed to the more cumbersome field-matching approach. Numerical results, validated also against state-of-the-art simulation software, confirm the accuracy and effectiveness of the proposed approach. In particular, modal and radiation features are presented for a class of leaky-wave antennas based on planar WM loaded configurations covered by partially reflecting screens, for which leaky unimodal regimes are achieved by minimizing spurious radiation from the quasi-transverse electromagnetic (TEM) mode.

Keywords

EM Field Theory and Numerical TechniquesMeta-materials and Photonic Bandgap StructuresPlanar Antenna Design
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Special Issue 4-5: EuMW 2015 Special Issue , June 2016 , pp. 713 - 722
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

REFERENCES

[1] Belov, P.; Marqués, R.; Maslovski, S.I.; Silveirinha, M.; Simovski, C.R.; Tretyakov, S.A.: Strong spatial dispersion in wire media in the very large wavelength limit. Phys. Rev. B, 67 (2003), 113103.CrossRefGoogle Scholar
[2] Belov, P.A.; Simovski, C.R.; Ikonen, P.: Canalization of subwavelength images by electromagnetic crystals. Phys. Rev. B, 71 (2005), 193105.Google Scholar
[3] Ono, A.; Kato, J.; Kawata, S.: Subwavelength optical imaging through a metallic nanorod array. Phys. Rev. Lett., 95 (2005), 267407.CrossRefGoogle ScholarPubMed
[4] Nefedov, I.S.; Viitanen, A.J.: Guided waves in uniaxial wire medium slab. Progr. Electromagn. Res., 51 (2005), 167–185.Google Scholar
[5] Burghignoli, P.; Lovat, G.; Capolino, F.; Jackson, D.R.; Wilton, D.R.: Modal propagation and excitation on a wire-medium slab. IEEE Trans. Microw. Theory Tech., 56 (2008), 1112–1124.Google Scholar
[6] Yakovlev, A.B.; Silveirinha, M.G.; Luukkonen, O.; Simovski, C.R.; Nefedov, I.S.; Tretyakov, S.A.: Characterization of surface-wave and leaky-wave propagation on wire-medium slabs and mushroom structures based on local and nonlocal homogenization models. IEEE Trans. Microw. Theory Tech., 77 (2009), 2700–2714.CrossRefGoogle Scholar
[7] Burghignoli, P.; Lovat, G.; Capolino, F.; Jackson, D.R.; Wilton, D.R.: Directive leaky-wave radiation from a dipole source in a wire-medium slab. IEEE Trans. Antennas Propag., 56 (2008), 1329–1339.Google Scholar
[8] Silveirinha, M.G.; Maslovski, S.I.: Radiation from elementary sources in a uniaxial wire medium. Phys. Rev. B, 85 (2012), 155125.Google Scholar
[9] Li, Y.; Alú, A.; Ling, H.: Investigation of leaky-wave propagation and radiation in a metal cut-wire array. IEEE Trans. Antennas Propag., 60 (2012), 1630–1634.CrossRefGoogle Scholar
[10] Silveirinha, M.G.; Maslovski, S.I.: Radiation from a Hertzian dipole embedded in a wire-medium slab. IEEE Antennas Wireless Propag. Lett., 12 (2013), 401–404.Google Scholar
[11] Comite, D.; Baccarelli, P.; Burghignoli, P.; Di Ruscio, D.; Galli, A.: Modal analysis of planar structures loaded with wire-medium slabs using a transmission-line approach, in Ninth European Conf. on Antennas and Propagation (EuCAP), Lisbon, 2015.Google Scholar
[12] Comite, D.; Burghignoli, P.; Baccarelli, P.; Galli, A.: Wire-medium loaded planar structures: a novel transmission-line model and relevant dispersion properties, in European Microwave Conf., Paris, 2015.Google Scholar
[13] Comite, D.; Burghignoli, P.; Baccarelli, P.; Di Ruscio, D.; Galli, A.: Equivalent-network analysis of propagation and radiation features in wire-medium loaded planar structures. IEEE Trans. Antennas Propag., 63 (2015), 5573–5585.Google Scholar
[14] Silveirinha, M.G.: Additional boundary condition for the wire medium. IEEE Trans. Antennas Propag., 54 (2006), 1766–1780.Google Scholar
[15] Jackson, D.R.; Oliner, A.A.: Leaky-wave antennas, in Balanis, C.A. (ed.), Modern Antenna Handbook, Wiley, New York, NY, 2008, Ch. 7.Google Scholar
[16] Di Ruscio, D.; Burghignoli, P.; Baccarelli, P.; Galli, A.: Omnidirectional radiation in the presence of homogenized metasurfaces. Progr. Electromagn. Res., 150 (2015), 145–161.Google Scholar
[17] Michalski, K.A.; Mosig, J.R.: Multilayered media Green's functions in integral equation formulations. IEEE Trans. Antennas Propag., 45 (1997), 1405–1418.CrossRefGoogle Scholar
[18] Ip, A.; Jackson, D.R.: Radiation from cylindrical leaky waves. IEEE Trans. Antennas Propag., 38 (1990), 482–488.Google Scholar
[19] Bongard, F.; Perruisseau-Carrier, J.; Mosig, J.R.: Enhanced periodic structure analysis based on a multiconductor transmission line model and application to metamaterials. IEEE Trans. Microw. Theory Tech., 57 (2009), 2715–2726.Google Scholar
[20] Valerio, G.; Paulotto, S.; Baccarelli, P.; Burghignoli, P.; Galli, A.: Accurate Bloch analysis of 1-D periodic lines through the simulation of truncated structures. IEEE Trans. Antennas Propag., 59 (2011), 2188–2195.CrossRefGoogle Scholar
[21] CST Products, http://www.cst.com, Germany, 2014.Google Scholar
[22] Silveirinha, M.G.; Fernandes, C.A.; Costa, J.R.: Additional boundary condition for a wire medium connected to a metallic surface. New J. Phys., 10 (2008), 053011.CrossRefGoogle Scholar
[23] Luukkonen, O. et al. : Simple and accurate analytical model of planar grids and high-impedance surfaces comprising metal strips or patches. IEEE Trans. Antennas Propag., 56 (2008), 1624–1632.Google Scholar
[24] Yakovlev, A.B. et al. : Analytical modeling of surface waves on high impedance surfaces, in Zouhdi, S., Sihvola, A. and Vinogradov, A.P. (eds.), Metamaterials and Plasmonics: Fundamentals, Modeling, Applications, NATO Science for Peace and Security Series, B – Physics and Biophysics, Springer, Dordrecht, 2009, 239–254.Google Scholar
[25] Yakovlev, A.B.; Padooru, Y.R.; Hanson, G.W.; Mafi, A.; Karbasi, S.: A generalized additional boundary condition for mushroom-type and bed-of-nails-type wire media. IEEE Trans. Microw. Theory Tech., 59 (2011), 527–532.Google Scholar