Isolation Enhancement between Ports of a Compact Ultra-wideband MIMO Antenna

Authors

  • Yantao Yu School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China
  • Shenshen Mao School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China
  • Meng Li School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China
  • Danting He School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China

Keywords:

Isolation, monopole antenna, multiinput multi-output, ultra-wideband

Abstract

In this paper, a novel compact multipleinput multiple-output (MIMO) antenna with enhanced port isolation is proposed for ultra-wideband (UWB) applications. The UWB MIMO antenna contains two coplanar annular monopoles etched on the front side of the FR-4 substrate. The dielectric substrate has a relative permittivity of 4.4 and a size of 80 mm × 40 mm × 1.6 mm. The irregular ground is printed on the back side of the substrate. In order to enhance the port isolation between the two monopoles, the expanded ground is exploited in the proposed design. In addition, the ground is etched with some slots to achieve good impedance matching. Both the simulated and measured results show that the proposed antenna achieves good impedance matching as well as high port isolation over the entire UWB band. Moreover, the proposed antenna has good spatial diversity characteristics. In summary, the proposed UWB MIMO antenna can be well applied to the ultra-wideband wireless communication system.

Downloads

Download data is not yet available.

Author Biographies

Yantao Yu, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China

Yantao Yu received the B.Eng. degree (1st class honors) and the Ph.D. degree both from the National University of Singapore, in 2004 and 2009, respectively. From 2008 to 2009, he worked at Motorola Electronics Pte Ltd, Singapore, as an RF Engineer. From 2009 to 2010, he was a Research Fellow with the National University of Singapore. He is currently an associate professor in the School of Microelectronics and Communication Engineering, Chongqing University, China. His research interests include analysis and design of antennas/arrays, RF & microwave circuits and special topics in array signal processing, Internet of Things, collaborative communications.

Shenshen Mao, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China

Shenshen Mao received the B.S. degree from the Chongqing Normal University, China in 2016. She is now working toward the Master degree in the Chongqing University. Her research interests include antenna/array design

Meng Li, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China

Meng Li received the B.Eng. degree in 2017 and the Master degree in 2020 from the Chongqing University, China. His research interests include design of antenna/ array and microwave circuits.

Danting He, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China

Danting He received the B.Eng. degree from the Anhui University of Technology, China in 2018. She is now working toward the Master degree in the Chongqing University. Her research interests include antenna/array design using TCM analysis.

References

D. Ghosh, A. De, M. C. Taylor, T. K. Sarkar, M. C. Wicks, and E. L. Mokole, “Transmission and reception by ultra-wideband (UWB) antennas,” IEEE Antennas Propagat. Mag., vol. 48, no. 5, pp. 67-99, Oct. 2006.

G. Srivastava and A. Mohan, “Compact MIMO slot antenna for UWB applications,” IEEE Antennas Wireless Propag. Lett., vol. 15, pp. 1057-1060, 2016.

A. Toktas and A. Akdagli, “Compact multipleinput multiple-output antenna with low correlation for ultra-wide-band applications,” IET Microw. Antennas Propag., vol. 9, pp. 822-829, 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 Microw. Antennas Propag., vol. 13, pp. 683-691, Apr. 17, 2019.

R. Mathur and S. Dwari, “8-port multibeam planar UWB-MIMO antenna with pattern and polarisation diversity,” IET Microw. Antennas Propag., vol. 13, pp. 2297-2302, Oct. 30, 2019.

L. Y. Nie, X. Q. Lin, Z. Q. Yang, J. Zhang, and B. Wang, “Structure-shared planar UWB MIMO antenna with high isolation for mobile platform,” IEEE Trans. Antennas Propag., vol. 67, pp. 2735- 2738, 2019.

T. K. Roshna, U. Deepak, V. R. Sajitha, K. Vasudevan, and P. Mohanan, “A compact UWB MIMO antenna with reflector to enhance isolation,” IEEE Trans. Antennas Propag., vol. 63, pp. 1873-1877, 2015.

S. Tripathi, A. Mohan, and S. Yadav, “A compact Koch fractal UWB MIMO antenna with WLAN band-rejection,” IEEE Antennas Wireless Propag. Lett., vol. 14, pp. 1565-1568, 2015.

R. Mathur and S. Dwari, “Compact CPW-fed ultrawideband MIMO antenna using hexagonal ring monopole antenna elements,” AEU-Int. J. Electron. Commun., vol. 93, pp. 1-6, 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,” Int. J. Microw. Wirel. Technol., vol. 11, pp. 719-728, 2019.

J. Ren, W. Hu, Y. Yin, and R. Fan, “Compact printed MIMO antenna for UWB applications,” IEEE Antennas Wireless Propag. Lett., vol. 13, pp. 1517-1520, 2014.

C. R. Jetti and V. R. Nandanavanam, “Tridentshape strip loaded dual band-notched UWB MIMO antenna for portable device applications,” AEU-Int. J. Electron. Commun., vol. 83, pp. 11-21, 2018.

E. Wang, W. Wang, X. Tan, Y. Wu, J. Gao, and Y. YU, MAO, LI, HE: PORTS OF A COMPACT ULTRA-WIDEBAND MIMO ANTENNA 65 Liu, “A UWB MIMO slot antenna using defected ground structures for high isolation,” Int. J. RF Microw. Comput-Aid. Eng., vol. 30, 2020.

L. Zhang, W. Liu, and T. Jiang, “A compact UWB MIMO antenna with high isolation,” Proc. IEEE Int. Symp. Antennas Propag., Fajardo, Puerto Rico, pp. 913-914, 2016.

K. Chhabilwad, G. S. Reddy, A. Kamma, B. Majumder, and J. Mukherjee, “Compact dual band notched printed UWB MIMO antenna with pattern diversity,” Proc. IEEE Int. Symp. Antennas Propag., Vancouver, Canada, pp. 2307-2308, 2015.

A. H. Radhi, R. Nilavalan, Y. Wang, H. S. AlRaweshidy, A. A. Eltokhy, and N. Ab Aziz, “Mutual coupling reduction with a wideband planar decoupling structure for UWB–MIMO antennas,” Int. J. Microw. Wirel. Technol., vol. 10, pp. 1143-1154, 2018.

M. G. N. Alsath and M. Kanagasabai, “Compact UWB monopole antenna for automotive communications,” IEEE Trans. Antennas Propag., vol. 63, pp. 4204-4208, 2015.

S. K. Dhar and M. S. Sharawi, “A UWB semiring MIMO antenna with isolation enhancement,” Microw. Opt. Technol. Lett., vol. 57, no. 8, pp. 1941-1946, 2015.

A. Toktas, “G-shaped band-notched ultra-wideband MIMO antenna system for mobile terminals,” IET Microw. Antennas Propag., vol. 11, pp. 718-725, Apr. 15, 2017.

Y. Li, B. Yu, H. Shen, L. Zhu, and G. Yang, “An 8-port planar UWB MIMO antenna for future 5G micro wireless access point applications,” 2017 Appl. Comput. Electromagn. Soc. Symp., Suzhou, pp. 1-2, 2017.

Y. Dong, Y. Li, K. Yu, and Y. Wang, “High isolation design of a two-element planar UWBMIMO monopole antenna,” 2017 Appl. Comput. Electromagn. Soc. Symp., Italy, Florence, pp. 1-2, 2017.

H. Huang and Z. Zhang, “Mutual coupling reduction of a very compact UWB-MIMO linearly tapered slot antenna using a simple stepped slot,” 2017 Appl. Comput. Electromagn. Soc. Symp., Suzhou, pp. 1-2, 2017.

Downloads

Published

2021-01-08

How to Cite

[1]
Yantao Yu, Shenshen Mao, Meng Li, and Danting He, “Isolation Enhancement between Ports of a Compact Ultra-wideband MIMO Antenna”, ACES Journal, vol. 36, no. 1, pp. 61–66, Jan. 2021.

Issue

Section

Articles