Skip to main content Accessibility help

UWB MIMO antenna with common radiator

  • Garima Srivastava (a1), B. K. Kanuijia (a1) and Rajeev Paulus (a2)


A compact printed 2 × 2 ultrawideband (UWB) multiple input multiple output (MIMO) antenna with a single circular patch as a common radiator for both the antenna elements is presented in this paper. A single circular patch is excited by two tapered CPW feeds for dual polarization. To improve the isolation between two ports, a rectangular slot of dimension L1 × W1 is created in the radiator. The UWB MIMO antenna has impedance bandwidth of 3–12 GHz with a isolation better than 17 dB between the two ports. The envelope correlation coefficient and the capacity loss are evaluated to ensure the good diversity performance of UWB MIMO antenna. The antenna has a compact size of 45 × 45 mm2 and is fabricated on low cost FR4 substrate and measured using Agilent VNA. The simulated and measured results show that the proposed UWB antenna is good candidate for UWB MIMO applications.


Corresponding author

Corresponding author: G. Srivastava Email:


Hide All
[1] Lee, J.M.; Kim, K.B.; Ryu, H.K.; Woo, J.M.: A compact ultrawideband MIMO antenna with WLAN band-rejected operation for mobile devices. IEEE Antennas Wireless Propag. Lett., 11 (2012), 990993.
[2] Gao, P.; He, S.; Wei, X.; Xu, Z.; Wang, N.; Zheng, Y.: Compact printed UWB diversity slot antenna with 5.5-GHz band-notched characteristics. IEEE Antennas Wireless Propag. Lett., 13 (2014), 376379.
[3] Chacko, B.P.; Augustin, G.; Denidni, T.A.: Uniplanar polarisation diversity antenna for ultrawideband systems. IET Microw. Antennas Propag., 7 (2013), 851857.
[4] Koohestani, M.; Moreira, A.A.; Skrivervik, A.K.: A novel compact CPW-fed polarization diversity ultrawideband antenna. IEEE Antennas Wireless Propag. Lett., 13 (2014), 563566.
[5] Zhang, S.; Ying, Z.N.; Xiong, J.; He, S.L.: Ultrawideband MIMO/diversity antennas with a tree-like structure to enhance wideband isolation. IEEE Antennas Wireless Propag. Lett., 8 (2009), 12791282.
[6] Blanch, S.; Romeu, J.; Corbella, I.: Exact representation of antenna system diversity performance from input parameter description. Electron. Lett., 39 (2003), 705707.
[7] Li, J.F.; Chu, Q.X.; Li, Z.H.; Xia, X.X.: Compact dual band-notched UWB MIMO antenna with high isolation. IEEE Trans. Antennas Propag., 61 (2013), 47594766.
[8] Li, J.-F.; Chu, Q.-X.; Huang, T.-G.: A compact wideband MIMO antenna with two novel bent slits. IEEE Trans. Antennas Propag., 60 (2012), 482489.
[9] Shin, H.; Lee, J.H.: Capacity of multiple-antenna fading channels: spatial fading correlation, double scattering, and keyhole. IEEE Trans. Inform. Theory, 49 (2003), 26362647.
[10] Valderas, D.; Crespo, P.; Ling, C.: UWB portable printed monopole array design for MIMO communications. Microw. Opt. Technol. Lett., 52 (2010), 889895.
[11] Najam, A.; Duroc, Y.; Tedjni, S.: UWB-MIMO antenna with novel stub structure. Prog. Electromagn. Res. C, 19 (2011), 245257.
[12] Wong, K.; Su, S.; Kuo, Y.: A printed ultra-wideband diversity monopole antenna. Microw. Opt. Technol. Lett., 38 (4) (2003), 257259.
[13] Hong, S.; Chung, K.; Lee, J.; Jung, S.; Lee, S.; Choi, J.: Design of adversity antenna with stubs for UWB applications. Microw. Opt. Technol. Lett., 50 (5) (2008), 13521356.


Related content

Powered by UNSILO

UWB MIMO antenna with common radiator

  • Garima Srivastava (a1), B. K. Kanuijia (a1) and Rajeev Paulus (a2)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.