Compact ACS-Fed UWB MIMO Antenna with Dual Band Notches
Keywords:
ACS, band notches, MIMO antenna, polarization diversity, UWBAbstract
In order to improve the channel capacity of communication equipment and reduce the size of antenna, an asymmetric coplanar strip (ACS) fed fourelement UWB MIMO antenna with dual band notches is proposed in this paper. The antenna has a simple structure and a compact size of 37×37 mm². The antenna consists of four modifled staircase-shaped radiation elements and four floor on the same side. The antenna elements are placed vertically without additional decoupling structure, and the isolation less than -15 dB in the working bandwidth of 2.9-10.6 GHz can be obtained by using polarization diversity. In addition, the antenna has the notched characteristic of WiMAX and WLAN band. The antenna has good gain and low envelop correlation coefficient (ECC), and the simulation results agree with the measured results, which indicates that the antenna is suitable for UWB system.
Downloads
References
L. L. Wang, Z. H. Du, H. L. Yang, R. Y. Ma, Y. C. Zhao, X. Q. Cui, and X. L. Xi, “Compact UWB MIMO antenna with high isolation using fencetype decoupling structure,” IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 8, pp. 1641-1645, 2019.
H. Qin and Y. F. Liu, “Compact UWB MIMO antenna with ACS-fed structure,”Progress in Electromagnetics Research C, vol. 50, pp. 29-37, May 2014.
R. Chandel, A. K. Gautam, and K. Rambabu, “Design and packaging of an eye-shaped multipleinput-multiple-output antenna with high isolation for wireless UWB applications,” IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 8, no. 4, pp. 635-642, Apr. 2018.
A. Bhattacharya, B. Roy, R. F. S. Caldeirinha, and A. K. Bhattacharjee, “Low-profile, extremely wideband, dual-band-notched MIMO antenna for UWB applications,” International Journal of Microwave and Wireless Technologies, vol. 11, no. 7, pp. 719-728, Feb. 2019.
C. M. Luo, J. S. Hong, and L. L. Zhong, “Isolation enhancement of a very compact UWB-MIMO slot antenna with two defected ground structures,” IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 1766-1769, 2015.
G. Srivastava and A. Mohan, “Compact MIMO slot antenna for UWB applications,” IEEE Antennas and Wirel. Propaga. Lett., vol. 15, pp. 1057-1060, 2016.
A. A. Ibrahim, J. Machac, and R. M. Shubair, “UWB MIMO antenna for high speed wireless applications,” Applied Computational Electromagnetics Society Journal, vol. 34, no. 9, pp. 1294-1299, Feb. 2019.
M. S. Khan, A. D. Capobianco, S. Asif, A. Iftikhar, B. Ijaz, and B. D. Braaten, “Compact 4×4 UWB-MIMO antenna with WLAN band rejected operation,” Electronics Letters, vol. 51, no. 14, pp. 1048-1050, July 2015.
K. Srivastava, A. Kumar, B. K. Kanaujia, S. Dwari, and S. Kumar, “A CPW-fed UWB MIMO antenna with integrated GSM band and dual band notches,” Inter. Journal of RF and Microwave ComputerAided Engineering, vol. 29, no. 1, May 2019.
R. N. Tiwari, P. Singh, and B. K. Kanaujia, “A compact UWB MIMO antenna with neutralization line for WLAN/ISM/mobile applications,” International Journal of RF and Microwave ComputerAided Engineering, vol. 29, no. 11, July 2019.
T. Shabbir, R. Saleem, A. Akram, and F. Shafique, “UWB-MIMO quadruple with FSS-inspired decoupling structures and defected grounds,” Applied Computational Electromagnetics Society Journal, vol. 30, no. 2, pp. 184-190, Oct. 2015.
L. S. Yang, M. Xu, and C. Li. “Four-element MIMO antenna system for UWB applications,” Radioengineering, vol. 28, no. 1, pp. 60-67, Apr. 2019.
A. A. R. Saad, “Approach for improving interelement isolation of orthogonally polarised MIMO slot antenna over ultra-wide bandwidth,” Electronics Letters, vol. 54, no. 18, pp. 1062-1064, May 2018.
Z. Y. Zhang, F. Zhang, and W. P Tian, “Compact 4-port ACS-fed UWB-MIMO antenna with shared radiators,” Progress in Electromagnetics Research Letters, vol. 55, pp. 81-88, Aug. 2015.
A. S. Eltrass and N. A. Elborae, “New design of UWB-MIMO antenna with enhanced isolation and dual-band rejection for WiMAX and WLAN systems,” IET Microwaves, Antennas & Propagation, vol. 13, no. 5, pp. 683-691, Feb. 2019.
Z. Y. Li, C. Y. Yin, and X. S. Zhu, “Compact UWB MIMO Vivaldi antenna with dual band-notched characteristics,” IEEE Access, vol. 7, pp. 38696- 38701, Apr. 2019.
S. Tripathi, A. Mohan, and S. Yadav, “A compact Koch fractal UWB MIMO antenna with WLAN band-rejection,” IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 1565-1568, 2015.
A. A. R. Saad and H. A. Mohamed, “Conceptual design of a compact four-element UWB MIMO slot antenna array,” IET Microwaves, Antennas & Propagation, vol. 13, no. 2, pp. 208-215, Jan. 2019.
