Double-resonant decoupling method in very dense dipole arrays

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors

Date

2020-05-01

Department

Department of Electronics and Nanoengineering

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Mcode

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Language

en

Pages

5

Series

Photonics and Nanostructures: Fundamentals and Applications, Volume 39

Abstract

In this paper an approach for broadening of operational band in a dense array of dipole antennas by implementing passive split-loop resonators (SLRs) as decouplers is presented. Compared to the previous method, where three closely located active dipoles were decoupled by two passive dipole, the operational band is significantly improved from 0.5% to 1.6% at the same level of decoupling −8 dB for the cross-talk and inter-channel transmittance. To delineate, the presence of two SLRs results in birefringence of the resonant interaction of SLRs which creates two different eigenmodes for decoupling. As a result, a dual-resonant decoupled band is obtained. Alongside with analytical investigation, numerical and experimental investigations verify the veracity of our approach. Moreover, the possibility of decoupling by SLRs for arrays with more active dipoles is investigated numerically.

Description

| openaire: EC/H2020/736937/EU//M-CUBE

Keywords

Active metasurface, Antenna array, Decoupling, Split loop resonator

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DOI

10.1016/j.photonics.2020.100767

Citation

Sharifian Mazraeh Mollaei, M, Hurshkainen, A, Kurdjumov, S & Simovski, C 2020, 'Double-resonant decoupling method in very dense dipole arrays', Photonics and Nanostructures: Fundamentals and Applications, vol. 39, 100767. https://doi.org/10.1016/j.photonics.2020.100767

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https://urn.fi/URN:NBN:fi:aalto-202002122137

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[article-cris] Sähkötekniikan korkeakoulu / ELEC