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2017-07-31

Very Compact 5.5 GHz Band-Notched UWB-MIMO Antennas with High Isolation

By Zhiwei Liu, Xiliang Wu, Yueyuan Zhang, Peng Ye, Zhiqing Ding, and Cheng Hu
Progress In Electromagnetics Research C, Vol. 76, 109-118, 2017
doi:10.2528/PIERC17053002

Abstract

In this letter, two different types of band-notch UWB-MIMO antennas are presented. the filtering effect can be achieved by integrating slot resonators to a UWB antenna. Both of the proposed antennas have very compact size and are smaller than most of the other band-notch UWB-MIMO antennas. The ultra-wideband is achieved by etching stepped slots on the ground. The band-notch characteristic can greatly reduce the potential interference between the UWB and WIMAX/WLAN system. Our proposed antennas can also possess a wide bandwidth from 3.3 GHz to 11 GHz with |S11| < -10 dB. Some effective measures have been taken and illustrated to reduce the isolation. Measurements demonstrate that the mutual coupling between the antenna elements is good enough for a MIMO system. Their stable radiation patterns are simulated, designed and measured successfully. The good performance and compact size make the antennas good candidates for UWB applications.

Citation


Zhiwei Liu, Xiliang Wu, Yueyuan Zhang, Peng Ye, Zhiqing Ding, and Cheng Hu, "Very Compact 5.5 GHz Band-Notched UWB-MIMO Antennas with High Isolation," Progress In Electromagnetics Research C, Vol. 76, 109-118, 2017.
doi:10.2528/PIERC17053002
http://jpier.org/PIERC/pier.php?paper=17053002

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