Tunable terahertz circularly polarized dielectric resonator antenna

Gupta, Richa; Varshney, Gaurav; Yaduvanshi, Rajveer S.

doi:10.1016/j.ijleo.2021.166800

Cited by 51 publications

(7 citation statements)

References 24 publications

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“…Graphene-based antenna arrays reduces mutual coupling due to inherent property of graphene as slow propagation speed of Surface plasmon polaritons wave. Paper [8] reported a high gain annular DRA loaded with graphene disk work on higher order mode for tunable operation in THz frequency range. Tunability in lower THz band is achieved by varying the chemical potential of graphene nano-disk on silicon DR. Paper [9] developed a tunable aperture coupled THz circularly polarized (CP) single/multiport rectangular DRA with the fundamental magnetic dipole operation.…”

Section: Introductionmentioning

confidence: 99%

Csrr Loaded Graphene Inspired Ebg Based High Isolation Miniaturized Wideband Thz Dielectric Resonator Mimo Antenna for Nano/Optical Communication in 6g Iot and Bio-Medical Sensing Application

Saxena

Chintakindi

Al-Tamim

et al. 2023

Preprint

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Section: Introductionmentioning

confidence: 99%

Csrr Loaded Graphene Inspired Ebg Based High Isolation Miniaturized Wideband Thz Dielectric Resonator Mimo Antenna for Nano/Optical Communication in 6g Iot and Bio-Medical Sensing Application

Saxena

Chintakindi

Al-Tamim

et al. 2023

Preprint

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“…Different methods have been used to design circularly polarized graphene antennas in THz region. In [10]- [11], circularly polarized dielectric resonator antennas with graphene coating have been proposed. A graphene antenna with perturbation in the shape of radiator to generate the CP response has been presented [12].…”

Section: Introductionmentioning

confidence: 99%

A Single Feed Graphene-based Circularly Polarized Antenna for THz Applications

Varshney

Pathak

Sircar

2023

Preprint

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In this paper, a frequency reconfigurable, circularly polarized graphene-based antenna has been designed. The antenna consists of a truncated graphene patch and single series cross-aperture coupled feeding. Two orthogonal modes are generated by the sequential rotation of the electromagnetic signal on the graphene patch through the cross aperture in ground plane. The frequency reconfigurability can be achieved by varying the external dc bias voltage at the graphene patch. The proposed antenna can resonate in the broad range of frequencies from 1.22 to 1.44 THz at chemical potential from 0.5 to 1.0 eV. In this range of chemical potential, the axial ratio of the antenna is less than 3 dB. The maximum gain of antenna has been achieved up to 4.6 dBi with 62% radiation efficiency at the chemical potential of 1 eV.

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“…One of the most important properties is its conductivity control with chemical potential, making it possible to control antenna responses such as operating frequency band and radiation pattern by changing the electrostatic bias voltage [11,12,13]. Recently, the use of graphene in hollow cylinder DRA structures has been proposed to create resonant frequency adjustments in both linear and circular polarization [14,15].…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Reconfigurable Terahertz Dielectric Resonator Antenna with Graphene Loading

Fakhte

Taskhiri

2022

Preprint

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A graphene-based dual-band terahertz rectangular dielectric resonator antenna (DRA) is proposed in this work. The upper wall of the rectangular DRA is coated with graphene, which acts as an impedance surface to tune the resonant frequencies of the \({\varvec{T}\varvec{E}}_{111}^{\varvec{y}}\)and \({\varvec{T}\varvec{E}}_{113}^{\varvec{y}}\)modes of the antenna by varying its chemical potential. Also, it is observed that for some values of the chemical potential of graphene, the \({\varvec{T}\varvec{E}}_{113}^{\varvec{y}}\) mode is not well excited, which leads to the ability to reconfigure the antenna in terms of the number of operating bands. In another part of the paper, an approximate formula for obtaining the resonant frequency of the graphene-loaded DRA is presented for the first time. The resonance frequency results obtained from this theoretical method for different chemical potential values are compared with the simulation results, and it is concluded that there is a good agreement between them.

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Tunable terahertz circularly polarized dielectric resonator antenna

Cited by 51 publications

References 24 publications

Csrr Loaded Graphene Inspired Ebg Based High Isolation Miniaturized Wideband Thz Dielectric Resonator Mimo Antenna for Nano/Optical Communication in 6g Iot and Bio-Medical Sensing Application

Csrr Loaded Graphene Inspired Ebg Based High Isolation Miniaturized Wideband Thz Dielectric Resonator Mimo Antenna for Nano/Optical Communication in 6g Iot and Bio-Medical Sensing Application

A Single Feed Graphene-based Circularly Polarized Antenna for THz Applications

Dual-Band Reconfigurable Terahertz Dielectric Resonator Antenna with Graphene Loading

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