Double-resonant decoupling method in very dense dipole arrays

Research output: Contribution to journalArticle

Researchers

Research units

  • St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)

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.

Details

Original languageEnglish
Article number100767
JournalPhotonics and Nanostructures - Fundamentals and Applications
Volume39
Publication statusPublished - 1 May 2020
MoE publication typeA1 Journal article-refereed

    Research areas

  • Active metasurface, Antenna array, Decoupling, Split loop resonator

ID: 40737458