Reconfigurable beam-steerable leaky-wave antenna loaded with metamaterial apertures using liquid crystal-based delay lines

Elahehsadat Torabi; Danilo Erricolo; Pai-Yen Chen; Walter Fuscaldo; Romeo Beccherelli

doi:10.1364/oe.464811

Reconfigurable beam-steerable leaky-wave antenna loaded with metamaterial apertures using liquid crystal-based delay lines

Elahehsadat Torabi, Danilo Erricolo, Pai-Yen Chen, Walter Fuscaldo, Romeo Beccherelli

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

An original liquid crystal (LC)-based substrate integrated waveguide (SIW) leaky-wave antenna is proposed. Inside the SIW, there is an embedded stripline sandwiched between an LC pool and another dielectric slab. The antenna couples the guided quasi-TEM mode into free space through a periodic set of complementary electric inductive-capacitive (cELC) resonators. Simulation results show that the antenna performs fixed-frequency continuous beam steering of 52° from backward −28° to forward 24° at 25.85 GHz. This relatively wide beam scan angle is achieved by tuning the LC permittivity through an applied quasi-DC bias voltage to the stripline. Simulation results show that the antenna has high realized gain through the entire scanning range (less than 1 dB degradation), relatively wide bandwidth, and good tolerance to frequency drift and fabrication errors.

Original language	English (US)
Pages (from-to)	28966
Journal	Optics Express
Volume	30
Issue number	16
DOIs	https://doi.org/10.1364/oe.464811
State	Published - Jul 22 2022
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/oe.464811

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@article{9a60d58d2ef2437bb460358f96d65e4d,

title = "Reconfigurable beam-steerable leaky-wave antenna loaded with metamaterial apertures using liquid crystal-based delay lines",

abstract = "An original liquid crystal (LC)-based substrate integrated waveguide (SIW) leaky-wave antenna is proposed. Inside the SIW, there is an embedded stripline sandwiched between an LC pool and another dielectric slab. The antenna couples the guided quasi-TEM mode into free space through a periodic set of complementary electric inductive-capacitive (cELC) resonators. Simulation results show that the antenna performs fixed-frequency continuous beam steering of 52° from backward −28° to forward 24° at 25.85 GHz. This relatively wide beam scan angle is achieved by tuning the LC permittivity through an applied quasi-DC bias voltage to the stripline. Simulation results show that the antenna has high realized gain through the entire scanning range (less than 1 dB degradation), relatively wide bandwidth, and good tolerance to frequency drift and fabrication errors.",

author = "Elahehsadat Torabi and Danilo Erricolo and Pai-Yen Chen and Walter Fuscaldo and Romeo Beccherelli",

note = "KAUST Repository Item: Exported on 2022-09-14 Acknowledged KAUST grant number(s): CRG8-4056.2 Acknowledgements: King Abdullah University of Science and Technology (CRG8-4056.2). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2022",

month = jul,

day = "22",

doi = "10.1364/oe.464811",

language = "English (US)",

volume = "30",

pages = "28966",

journal = "Optics Express",

issn = "1094-4087",

publisher = "Optica Publishing Group",

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TY - JOUR

T1 - Reconfigurable beam-steerable leaky-wave antenna loaded with metamaterial apertures using liquid crystal-based delay lines

AU - Torabi, Elahehsadat

AU - Erricolo, Danilo

AU - Chen, Pai-Yen

AU - Fuscaldo, Walter

AU - Beccherelli, Romeo

N1 - KAUST Repository Item: Exported on 2022-09-14 Acknowledged KAUST grant number(s): CRG8-4056.2 Acknowledgements: King Abdullah University of Science and Technology (CRG8-4056.2). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2022/7/22

Y1 - 2022/7/22

N2 - An original liquid crystal (LC)-based substrate integrated waveguide (SIW) leaky-wave antenna is proposed. Inside the SIW, there is an embedded stripline sandwiched between an LC pool and another dielectric slab. The antenna couples the guided quasi-TEM mode into free space through a periodic set of complementary electric inductive-capacitive (cELC) resonators. Simulation results show that the antenna performs fixed-frequency continuous beam steering of 52° from backward −28° to forward 24° at 25.85 GHz. This relatively wide beam scan angle is achieved by tuning the LC permittivity through an applied quasi-DC bias voltage to the stripline. Simulation results show that the antenna has high realized gain through the entire scanning range (less than 1 dB degradation), relatively wide bandwidth, and good tolerance to frequency drift and fabrication errors.

AB - An original liquid crystal (LC)-based substrate integrated waveguide (SIW) leaky-wave antenna is proposed. Inside the SIW, there is an embedded stripline sandwiched between an LC pool and another dielectric slab. The antenna couples the guided quasi-TEM mode into free space through a periodic set of complementary electric inductive-capacitive (cELC) resonators. Simulation results show that the antenna performs fixed-frequency continuous beam steering of 52° from backward −28° to forward 24° at 25.85 GHz. This relatively wide beam scan angle is achieved by tuning the LC permittivity through an applied quasi-DC bias voltage to the stripline. Simulation results show that the antenna has high realized gain through the entire scanning range (less than 1 dB degradation), relatively wide bandwidth, and good tolerance to frequency drift and fabrication errors.

UR - http://hdl.handle.net/10754/679876

UR - https://opg.optica.org/abstract.cfm?URI=oe-30-16-28966

U2 - 10.1364/oe.464811

DO - 10.1364/oe.464811

M3 - Article

SN - 1094-4087

VL - 30

SP - 28966

JO - Optics Express

JF - Optics Express

IS - 16

ER -

Reconfigurable beam-steerable leaky-wave antenna loaded with metamaterial apertures using liquid crystal-based delay lines

Abstract

ASJC Scopus subject areas

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