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Published in: Wireless Personal Communications 3/2018

22-05-2018

Bi-directional UWB MIMO Antenna for Superior Spatial Diversity, and/or Multiplexing MIMO Performance

Authors: Ahmed Abdelraheem, Mahmoud A. Abdalla

Published in: Wireless Personal Communications | Issue 3/2018

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Abstract

In this paper, a two-element UWB MIMO antenna with bi-directional radiation pattern is designed for superior UWB MIMO performance. The designed antenna adopts asymmetric coplanar waveguide ground feeding. The proposed antenna ECC is lower than the ECC of its omni-directional peer antenna. Simulated and measured ECC is lower than 0.016 over the entire ultra-wide bandwidth (3.1–10.6 GHz). The isolation between elements of the designed antenna is 20–25 dB exceeding the average in recently published works. The designed antenna has a diversity gain of almost 10 dB and average multiplexing efficiency of 85% over the entire ultra-wide bandwidth. The antenna preserves radiation efficiency higher than 0.96 and gain 3 dB. The diversity performance of the proposed UWB MIMO antenna is proven through real rich-multipath indoor environment measurements. Stationarity of the elected channel is evaluated through 100 successive measurements separated by a 3-min period for 5 h long. The measured spatial correlation coefficients are much lower than 0.5 in different scenarios.

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Metadata
Title
Bi-directional UWB MIMO Antenna for Superior Spatial Diversity, and/or Multiplexing MIMO Performance
Authors
Ahmed Abdelraheem
Mahmoud A. Abdalla
Publication date
22-05-2018
Publisher
Springer US
Published in
Wireless Personal Communications / Issue 3/2018
Print ISSN: 0929-6212
Electronic ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-018-5767-5

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