Analytical model of interwoven spiral arrays

Andrea Vallecchi, Alexander G. Schuchinsky

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Interweaving planar spiral conductors in doubly periodic arrays enable substantially sub-wavelength resonant response along with broadening fractional bandwidth. A self-contained analytical model is proposed to accurately predict the characteristics of the intertwined quadrifilar spiral array near the fundamental resonance. The model, based upon a multiconductor transmission line (MTL) approach, provides physical insight into the unique properties of the distributed interactions between the interleaved counter-wound spiral arms extended beyond a single unit cell and elucidates the mechanisms underlying the array performance at normal and oblique incidence of TE and TM polarised waves. The developed MTL model is instrumental in the design of the artificial surfaces with the specified response.

Original languageEnglish
Pages (from-to)1268-1276
Number of pages9
JournalIET Microwaves, Antennas and Propagation
Volume8
Issue number15
DOIs
Publication statusPublished - 09 Dec 2014

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Analytical models
Electric lines
Bandwidth
Wavelength

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Vallecchi, Andrea ; Schuchinsky, Alexander G. / Analytical model of interwoven spiral arrays. In: IET Microwaves, Antennas and Propagation. 2014 ; Vol. 8, No. 15. pp. 1268-1276.
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Analytical model of interwoven spiral arrays. / Vallecchi, Andrea; Schuchinsky, Alexander G.

In: IET Microwaves, Antennas and Propagation, Vol. 8, No. 15, 09.12.2014, p. 1268-1276.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Analytical model of interwoven spiral arrays

AU - Vallecchi, Andrea

AU - Schuchinsky, Alexander G.

PY - 2014/12/9

Y1 - 2014/12/9

N2 - Interweaving planar spiral conductors in doubly periodic arrays enable substantially sub-wavelength resonant response along with broadening fractional bandwidth. A self-contained analytical model is proposed to accurately predict the characteristics of the intertwined quadrifilar spiral array near the fundamental resonance. The model, based upon a multiconductor transmission line (MTL) approach, provides physical insight into the unique properties of the distributed interactions between the interleaved counter-wound spiral arms extended beyond a single unit cell and elucidates the mechanisms underlying the array performance at normal and oblique incidence of TE and TM polarised waves. The developed MTL model is instrumental in the design of the artificial surfaces with the specified response.

AB - Interweaving planar spiral conductors in doubly periodic arrays enable substantially sub-wavelength resonant response along with broadening fractional bandwidth. A self-contained analytical model is proposed to accurately predict the characteristics of the intertwined quadrifilar spiral array near the fundamental resonance. The model, based upon a multiconductor transmission line (MTL) approach, provides physical insight into the unique properties of the distributed interactions between the interleaved counter-wound spiral arms extended beyond a single unit cell and elucidates the mechanisms underlying the array performance at normal and oblique incidence of TE and TM polarised waves. The developed MTL model is instrumental in the design of the artificial surfaces with the specified response.

U2 - 10.1049/iet-map.2013.0450

DO - 10.1049/iet-map.2013.0450

M3 - Article

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EP - 1276

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