Dual-polarized Grid-slotted Microstrip Antenna with Enhanced Bandwidth and Low Profile
Keywords:
Antenna feeds, microstrip antennas, polarization diversity, wideband antennasAbstract
In this paper, a wideband dual-polarized microstrip antenna is proposed inspired by the concept of the periodic grid-slotted surface. Inherited the merit of low profile from microstrip antenna, a relatively wide bandwidth, i.e., up to 43% with reflection coefficient less than -10 dB, is achieved for both orthogonal polarizations. Multiple modes are excited due to the periodic slotloaded structure and well matched using crossed aperture-coupled Y-shaped feeding. The overall height of the proposed antenna is only 0.06 lambda0, lambda0 is the freespace wavelength at the centre frequency of 5.5 GHz. The proposed antenna is systematically studied in the numerical simulation and experiment, and results agree well. The proposed dual-polarized antenna provides an effective choice for wideband low profile antenna for the applications of base station.
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References
Q.-X. Chu, D. L. Wen, and Y. Luo, “A broadband ±45◦ dual-polarized antenna with Y-shaped feeding structure,” IEEE Trans. Antennas Propag., vol. 63, no. 2, pp. 483-490, Feb. 2015.
Z. Bao, Z. Nie, and X. Zong, “A broadband dualpolarization antenna element for wireless communication base station,” in Proc. IEEE Asia Pacific Conf. Antennas and Propagation, pp. 144-146, 2012.
K. M. Luk and H. Wong, “A new wideband unidirectional antenna element,” Int. J. Microw. Opt. Technol., vol. 1, no. 1, pp. 2098-2101, July 2006.
O. Amjad, S. W. Munir, S. T. Imeci, and A. O. Ercan, “Design and implementation of dual band microstrip patch antenna for WLAN energy harvesting system,” Applied Computational Electromagnetic Society (ACES) Journal, vol. 33, no. 7, pp. 746-751, July 2018.
R. Garg, P. Bhartia, I. Bahl, and A. Ittipiboon, Microstrip Antenna Design Handbook. Boston, MA, USA: Artech House, 2001.
E. Chang, S. A. Long, and W. F. Richards, “An experimental investigation of electrically thick rectangular microstrip antennas,” IEEE Trans. Antennas Propag., vol. 34, no. 6, pp. 767-772, June 1986.
T. Huynh and K. F. Lee, “Single-layer single-patch wideband microstrip antenna,” Electron. Lett., vol. 31, no. 16, pp. 1310-1312, Aug. 1995.
F. Yang, X. X. Zhang, X. Ye, and Y. RahmatSamii, “Wide-band E-shaped patch antennas for wireless communications,” IEEE Trans. Antennas Propag., vol. 49, no. 7, pp. 1094-1100, July 2001.
S. Mestdagh, W. De Raedt, and G. A. E. Vandenbosch, “CPW-fed stacked microstrip antennas,” IEEE Trans. Antennas Propag., vol. 52, no. 1, pp. 74-83, Jan. 2004.
N.-W. Liu, L. Zhu, W.-W. Choi, and X. Zhang, “A low-profile aperture-coupled microstrip antenna with enhanced bandwidth under dual resonance,” IEEE Trans. Antennas Propag., vol. 65, no. 3, pp. 1055-1062, Mar. 2017.
A. U. Zaman, L. Manholm, and A. Derneryd, “Dual polarised microstrip patch antenna with high port isolation,” Electron. Lett., vol. 43, no. 10, pp. 551-552, Sep. 2007.
W. Y. Sun, Y. Li, Z. Z. Zhang, and Z. H. Feng, “Broadband and low-profile microstrip antenna using strip-slot hybrid structure,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 3118-3121, 2017.
Z. Zhang, Antenna Design for Mobile Devices, 2nd Edition, Hoboken, NJ, USA: Wiley, 2017.
J. M. Lee, K. B. Kim, H. K. Ryu, and J. M. Woo, “A compact ultrawideband MIMO antenna with WLAN band-rejected operation for mobile devices,” IEEE Antennas Wireless Propag. Lett., vol. 11, pp. 990-993, 2012.
H. Minseok and C. Jaehoon, “Small-size printed strip MIMO antenna for next generation mobile handset application,” Microw. Opt. Technol. Lett., vol. 53, no. 2, pp. 48-352, 2011.
D.-Z. Zheng and Q.-X. Chu, “A wideband dualpolarized antenna with two independently controllable resonant modes and its array for basestation applications,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 2014-2017, 2017.
Y. Y Jin and Z. W Du, “Broadband dual-polarized F-probe fed stacked patch antenna for base stations,” IEEE Antennas Wireless Propag. Lett., vol. 14, pp. 1121-1124, 2015.
