Dual-band X/Ku Reflectarray Antenna Using a Novel FSS-Backed Unit-Cell with Quasi-Spiral Phase Delay Line

Iman Derafshi, Ensieh Gh. Mizuji, Nader Komjani, Mohammad Mohammadirad

Abstract


— A novel FSS-Backed reflectarray unit cell is introduced to design a dual-band X/Ku Reflectarray Antenna (RA). A Ku-band RA based on this FSS-Backed cell element is designed and located on the top of a conventional X-band RA. Actually, the band-stop Frequency Selective Surface (FSS) property is applied to a wideband element to create isolation between X and Ku band RAs which utilizing the same radiating element. A wideband cell element with attached quasi-spiral phase delay line is employed for phase compensation in both bands. As a FSS-backed cell element, the remarkable feature of the proposed dual band unit cell compared to previous works is its possibility of operation in close frequency bands. Two reflectarrays with aperture size of 7.65λ -7.65λ and 7.35λ -7.35λ are designed, fabricated and measured for X band and Ku band, respectively. Measured results show 1-dB gain bandwidth of 12% for X band and 11% for Ku band which demonstrate wideband operation of this dual-band reflectarray antenna.


Keywords


Dual-band, quasi-spiral, delay line, FSS-Backed reflectarray antenna, isolation.

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References


M. R. Chaharmir, J. Shaker, N. Gagnon, and D. Lee, "Design of broadband, single layer dual-band large reflectarray using multi open loop elements,`` IEEE Trans. Antenna Propag.,vol. 58, no. 9, pp. 2875-2883, Sep. 2010.

M. R. Chaharmir, J. Shaker, and N. Gagnon, "Broadband dual-band linear orthogonal polarization reflectarray,`` Electron. Lett.,vol. 45, no. 1, Jan. 2009.

H. Hasani, and C. Piexeiro, "Dual-band, dual-polarized microstrip reflectarrayantenna in Ku band,`` Loughborough Antennas & Propagation Conference. Nov. 2012.

C. Han, J. Huang, and K. Chang, "A highefficiency offset-fed X/Ka-dual-band reflectarray using thin membranes,`` IEEE Trans. Antenna Propag.,vol. 53, no. 9, pp. 2792-2798, Sep. 2005.

C. Han, Ch. Rodenbeck, J. Huang, and K. Chang, "A C/Ka dual frequency dual-layer circularly polarized antenna with microstrip ring elements,`` IEEE Trans. Antenna Propag.,vol. 52, no. 11, pp. 2871-2876, Nov. 2004.

M. R. Chaharmir, J. Shaker, and M. Cuhaci, "Development of dual-band circularly polarized reflectarray,`` IEE Proc-Microw. Antenna Propag.,vol. 153, no. 1, pp. 49-54, Feb. 2006.

J. Shaker, and M. Cuhaci, "Multi-band, multi-polarisation reflector-reflectarray antenna with simplified feed system and mutually independent radiation patterns,`` IEEE Trans. Antenna Propag.,vol. 56, no. 12, pp. 3700-3706, Dec. 2008.

M. R. Chaharmir, J. Shaker, and L. Legay, "Dual-band Ka/X reflectarray with broadband loop elements,`` IET Microw. Antenna Propag.,vol. 4, lss. 2, pp. 225-231, 2010.

L. Li, Q. Chen, Q. Yuan, k. Sawaya, T. Maruyama, T.Furuno and Sh. Uebayashi, "Frequency selective reflectarray using crossed-dipole elements with square loops for wireless communication applications,`` IEEE Trans. Antenna Propag.,vol. 59, no. 1, pp. 89-99, Jan. 2011.

Y. Chen, L. Chen, H. Wang, X. Gu and X. Shi, "Dual-band crossed-dipole reflectarray with dual-Band frequency selective surface,`` IEEE Antenna WirelessPropag.Lett,vol. 12, pp. 1157-1160, 2013.

R. D. Javor, X. Wu, and K. Chang, "Design and performance of a microstripreflectarray antenna,`` IEEE Trans. Antenna Propag., vol. 43, no. 9, pp. 932-939, Sep. 1995.

H. Hasani, M. Kamyab, and A. Mirkamali, "Broadband reflectarray antenna incorporating disk elements with attached phase-delay line,`` IEEE Antenna Wireless Propag.Lett, vol. 9, pp. 156-158, 2010.

R. Sh. Malfajani, and Z. Atlasbaf, "Design and implementation of a broadband single layer circularly polarized reflectarray antenna,`` IEEE Antenna Wireless Propag.Lett, vol. 11, pp. 973-976, 2012.

I .Derafshi, N. Komjani and M. Mohammadirad, "A single-layer broadband reflectarray antenna by using quasi-spiral phase delay line,`` Accepted in IEEE AWPL, 2014.

M. Mohammadirad, N. Komjani, M. Chaharmir, J. Shaker, A. Sebak, ``Phase Error Analysis of the Effect of Feed Movement on Bandwidth Performance of a Broadband X-Ku Band Reflectarray,`` International Journal of RF and Microwave Computer-Aided Engineering/Vol. 23, No. 5, pp.17-526, 2012.

J. Li, Q. Chen, Q. Yuan, and K. Sawaya, "FSS sandwiched reflectarray for dual–frequency application,``Microwave Conference Proceedings (APMC), Asia-Pacif1ic. pp. 877 – 880, 2010.

B. Munk, Finite antenna arrays and FSS. Hoboken, N.J.: IEEE Press/Wiley-Interscience, 2003.

J. Huang and J. A. Encinar, Reflectarray Antennas. New York: IEEE Press, Wiley-Interscience, 2008.




DOI: http://dx.doi.org/10.1590/2179-10742016v15i3582

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