A Broadband Reflectarray Based on Vivaldi Antenna Elements
关键词:
Broadband, high gain, reflectarray, Vivaldi antenna array摘要
In this paper, a novel broadband reflectarray (RA) is presented. For achieving broadband performance, the unit cell is realized using Vivaldi antenna element, where the feeding line acts as phase delay-line for adjusting the reflection phase. By simply changing the length of phase delay-line, a full 360° phase coverage is obtained. Additionally, the phase response curves are nearly parallel within a broad bandwidth, leading to a wideband operation. To verify this design, a prototype consisting of 10×22 unit cells is designed, fabricated and measured. The measured results show that the maximum gain reaches 21.50 dBi with 20.15% 1-dB gain bandwidth and 30.38% 3-dB gain bandwidth, respectively. Simulated and measured results agree very well with the proposed design scheme.
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参考
X. Y. Xia, Q. Wu, H. M. Wang, and C. Yu, “Wideband millimeter-wave microstrip reflectarray using dual-resonance unit cells,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 4-7, 2017.
Q. Y. Chen, S. W. Qu, X. Q. Zhang, and M. Y. Xia, “Low-profile wideband reflectarray by novel elements with linear phase response,” IEEE Antennas Wireless Propag. Lett., vol. 11, pp. 1545- 1547, 2012.
G. B. Wu, S. W. Qu, S. W. Yang, and C. H. Chan, “Broadband, single-layer dual circularly polarized reflectarrays with linearly polarized feed,” IEEE Trans. Antennas Propag., vol. 64, no. 10, pp. 4235- 4241, Oct. 2016.
Y. Z. Li, M. E. Bialkowski, and A. M. Abbosh, “Single layer reflectarray with circular rings and open-circuited stubs for wideband operation,” IEEE Trans. Antennas Propag., vol. 60, no. 9, pp. 4183- 4189, Sep. 2012.
Z. W. Miao and Z. C. Hao, “A wideband reflectarray antenna using substrate integrated coaxial truetime delay lines for QLink-Pan applications,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 2582- 2585, 2017
L. Zhang, S. Gao, Q. Luo, and W. T. Li, “Singlelayer wideband circularly polarized high-efficiency reflectarray for satellite communications,” IEEE Trans. Antennas Propag., vol. 65, no. 9, pp. 4529- 4538, Sep. 2017.
C. H. Han, Y. T. Zhang, and Q. S. Yang, “A novel single-layer unit structure for broadband reflectarray Antenna,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 681-684, 2017.
M. H. A. S. M. Amin, K Ghaemi, and N. Behdad, “Ultra-wideband, true-time-delay reflectarray antennas using ground-plane-backed, miniaturizedelement frequency selective surfaces,” IEEE Trans. Antennas Propag., vol. 63, no. 2, pp. 534-542, Feb. 2015.
M. Mohammadirad, N. Komjani, Abdel R. Sebak and Mohammad R. Chaharmir, “A broadband reflectarray antenna using the triangular array configuration,” Applied Computational Electromagnetics Society Journal, vol. 26, no. 8, pp. 640- 650, Aug. 2011.
A. Tayebi, J. Gomez, J. R. Almagro, and F. Catedra, “Broadband high efficiency single-layer reflectarray antenna based on spiral crosses,” Applied Computational Electromagnetics Society Journal, vol. 28, no. 1, pp. 1-7, Jan. 2013.
P. Y. Qin, Y. J. Guo, and A. R. Weily, “Broadband reflectarray antenna using subwavelength elements based on double square meander-line rings,” IEEE Trans. Antennas Propag., vol. 64, no. 1, pp. 378- 383, Jan. 2016.
Y. L. Mao, S. H. Xu, F. Yang, and A. Elsherbeni, “A novel phase synthesis approach for wideband reflectarray design,” IEEE Trans. Antennas Propag., vol. 63, no. 9, pp. 4189-4193, Sep. 2015.
E. Carrasco, J. A. Encinar, and M. Barba, “Bandwidth improvement in large reflectarrays by using true-time delay,” IEEE Trans. Antennas Propag., vol. 56, no. 8, pp. 2496-2503, Aug. 2008.
J. A. Encinar and J. A. Zornoza, “Broadband design of three-layer printed reflectarrays,” IEEE Trans. Antennas Propag., vol. 51, no. 7, pp. 1662- 1664, July 2003.
P. Nayeri, F. Yang, and A. Z. Elsherbeni, “Broadband reflectarray antennas using doublelayer subwavelength patch elements,” IEEE Antennas Wireless Propag. Lett., vol. 9, pp. 1139- 1142, 2010.
W. T. Li, S. Gao, L. Zhang, and Q. Luo, “An ultra-wide-band tightly coupled dipole reflectarray antenna,” IEEE Trans. Antennas Propag., vol. 66, no. 2, pp. 533-540, Feb. 2018.
Y. H. Xu, J. P. Wang, L. Ge, and X. D. Wang, “Design of a notched-band Vivaldi antenna with high selectivity,” IEEE Antennas Wireless Propag. Lett., vol. 17, pp. 62-65, Jan. 2018.