Mutual Coupling Reduction of Two 2x1 Triangular-Patch Antenna Array Using a Single Neutralization Line for MIMO Applications

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2018-12
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Společnost pro radioelektronické inženýrství
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Abstract
In this paper, a novel structure of two interlaced antenna arrays for MIMO applications is presented. It consists of two 2x1 triangular patch array antennas, which have all elements separated by a short distance among them (0.22λ0), where mutual coupling can be very poor (S21 = –7.81 dB). To overcome such weakness, a simple and efficient method is used: one neutralization line (NL) is introduced to increase the decoupling between both ports, reaching up to –29 dB at the central frequency, and below –20 dB over a large bandwidth. The whole MIMO antenna array has dimensions of 1.56λ0 × 0.3λ0 and has a gain of 9.11 dBi. Its diversity parameters describe it as a useful radiator for MIMO communications systems.
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Radioengineering. 2018 vol. 27, č. 4, s. 976-982. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2018/18_04_0976_0982.pdf
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en
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Creative Commons Attribution 4.0 International license
http://creativecommons.org/licenses/by/4.0/
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