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New Ku-band reflectarray antenna by using anisotropic superstrate on an artificial magnetic conductor

Published online by Cambridge University Press:  12 May 2016

Mahmood Rafaei-Booket  and
Zahra Atlasbaf
Mahmood Rafaei-Booket
Affiliation:
Faculty of Electrical and Computer Engineering, Tarbiat Modares University (TMU), Jalal Ale Ahmad Highway, Tehran, Iran. Phone: +98 21 82884345
Zahra Atlasbaf*
Affiliation:
Faculty of Electrical and Computer Engineering, Tarbiat Modares University (TMU), Jalal Ale Ahmad Highway, Tehran, Iran. Phone: +98 21 82884345
*
Corresponding author:Z. Atlasbaf Email: [email protected]
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Abstract

A new Ku-band reflectarray with an artificial anisotropic slab that consists of periodic holes, backed by a planar artificial magnetic conductor (AMC) is proposed. The unit-cell of the reflectarray is a two-layered structure that consists of a dielectric with a hole on a grounded patch. The phase diagram of the proposed unit-cell is calculated by a full-wave computational technique, which uses the dyadic Green's function evaluated by an equivalent transmission line modeling in the spectral domain. The obtained dyadic Green's function is used in an integral equation formulated for the surface current densities on the metallic grating. The resultant integral equation is then solved using the method of moments. The required phase shift at Ku-band is obtained by changing the radius of holes in the artificial slab. The introduced unit cell has linear phase range between 13.95 and 14.95 GHz. It is shown that this frequency band is the usable bandwidth of AMC structure. Finally, the designed reflectarray is analyzed using a full-wave electromagnetic solver. The numerical results show a maximum gain of 27.4 dBi, and 48.09% efficiency, at 14.45 GHz with 4.15% 1-dB gain bandwidth for the designed 21 × 21 cm2 reflectarray.

Keywords

Artificial anisotropic dielectricArtificial magnetic conductor (AMC)Dyadic Green's functionMethod of moments (MoM)Reflectarray antenna
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 4 , May 2017 , pp. 831 - 841
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

REFERENCES

[1] Huang, J.; Encinar, J.A.: Reflectarray Antennas, Wiley, New Jersey, 2008.Google Scholar
[2] Malfajani, R.S.; Atlasbaf, Z.: Design and implementation of a broadband single layer circularly polarized reflectarray antenna. IEEE Antennas Wireless Propag. Lett., 11 (2012), 973–976.Google Scholar
[3] Malfajani, R.S.; Atlasbaf, Z.: Design and implementation of a broadband single-layer reflectarray antenna with large-range linear phase elements. IEEE Antennas Wireless Propag. Lett., 11 (2012), 1442–1445.Google Scholar
[4] Malfajani, R.S.; Atlasbaf, Z.: Design and implementation of a dual-band single-layer reflectarray in X and K bands. IEEE Trans. Antennas Propag., 62 (2014), 4425–4431.Google Scholar
[5] Hamzavi-Zarghani, Z.; Atlasbaf, Z.: A new broadband single-layer dual-band reflectarray antenna in X and Ku bands. IEEE Antennas Wireless Propag. Lett., 14 (2014), 602–605.Google Scholar
[6] Moeini-Fard, M.; Khalaj-Amirhosseini, M.: Inhomogeneous perforated reflect-array antennas. Wireless Eng. Technol., 2 (2011), 80–86.Google Scholar
[7] Rafaei-Booket, M.; Atlasbaf, Z.: Metallic grating embedded in an anisotropic slab for realization of a reflectarray antenna, in 23th Iranian Conf. on Electrical Engineering (ICEE), Tehran, Iran, 2015, 374–378.Google Scholar
[8] Balanis, C.: Advanced Engineering Electromagnetics, Wiley, New York, 1989.Google Scholar
[9] Collin, R.E.: A simple artificial anisotropic dielectric medium. IRE Trans. Microw. Theory Tech., 6 (1958), 206–209.Google Scholar
[10] Grann, E.B.; Moharam, M.G.; Pommet, D.A.: Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings. J. Opt. Soc. Am. A, 11 (1994), 2695–2703.Google Scholar
[11] Mittra, R.; Chan, C.H.; Cwik, T.: Techniques for analyzing frequency selective surfaces:-a review. Proc. IEEE, 76 (1988), 1593–1615.Google Scholar
[12] Shahabadi, M.; Atakaramians, S.; Hojjat, N.: Transmission line formulation for the full-wave analysis of two-dimensional dielectric photonic crystals. IEE Proc., Sci Meas. Technol., 151 (2004), 327–334.CrossRefGoogle Scholar
[13] Itoh, T.: Spectral domain immitance approach for dispersion characteristics of generalized printed transmission lines. IEEE Trans. Microw. Theory Tech., 28 (1980), 733–736.Google Scholar
[14] Rytov, S.M.: Electromagnetic properties of a finely stratified medium. Sov. Phys. – JETP, 2 (1956), 466–475.Google Scholar
[15] Kazerooni, A.S.; Shahabadi, M.: Plane-wave diffraction by periodic structures with artificial anisotropic dielectrics. J. Opt., 12 (2010), 055102 (1–9).Google Scholar
[16] Kern, D.J.; Werner, D.H.; Monorchio, A.; Lanuzza, L.; Wilhelm, M.J.: The design synthesis of multiband artifitial magnetic conductors using high impedance frequency selective surfaces. IEEE Trans. Antennas Propag., 53 (2005), 82–89.Google Scholar
[17] Huang, J.: Analysis of a microstrip reflectarray antenna for microspacecraft applications. TDA Progress Report 42-120, 1995, 153–173.Google Scholar