SIMULATION OF CARBON NANOTUBE THz ANTENNA ARRAYS

In this paper we review THz radiation properties, generation methods, and antenna configurations. This paper suggests some new class of antennas that can be used at THz frequency, like optical antennas or Carbon nanotube antennas. THz technology has become attractive due to the low energy content and nonionizing nature of the signal. This property makes them suitable for imaging and sensing applications. But at the same time detection and generation of THz signals has been technologically challenging. This paper presents a comparative study of the generation techniques for THz frequency signals giving emphasis to the some new techniques like Quantum Cascade lasers which has created significant research interest. The main aim for this study is to find out the materials suitable for fabricating THz devices and antennas, a suitable method for generation of high power at THz frequency and an antenna that will make THz communication possible.

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“…Ref. 29 shows that they can be used in THz frequency also. But the research is still in nascent stage.…”

Section: Resultsmentioning

confidence: 99%

“…Reference [29] discusses about a novel THz antenna made of array of Carbon nanotubes. Finite length dipole antennas can be formed with CNT.…”

Section: Terahertz Antennasmentioning

confidence: 99%

Terahertz (THz) Frequency Sources and Antennas - A Brief Review

Mukherjee¹,

Gupta

2008

Int J Infrared Milli Waves

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“…CNT antennas have been examined for communication between electronic nanodevices and the outside macroscopic world [7][8][9][10][11][12][13][14]. The exploitation of CNTs has yielded the extreme miniaturization of antennas for microwave, terahertz, infrared, and optical applications, whereby radiating elements are presently a few nanometers in size.…”

Section: Introductionmentioning

confidence: 99%

Giga- and terahertz-range nanoemitter based on peapod structure

et al. 2015

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We propose a theoretical model of a nanoemitter for giga-and terahertz-range waves. The model is based on a peapod structure comprising a carbon nanotube with chiral indices (10, 10). Three encapsulated and partially polymerized fullerene C 60 molecules and a positively charged C 60 fullerene are trapped inside the nanotube. The motion of the charged fullerene and the radiation frequency were controlled using an external electric field. Stable terahertz radiation at a frequency of 0.36 THz was produced at 300 K with an external electrical field of 10 V/μm. Stable radiation in the gigahertz range was observed at 50 K with an electric field below 10 V/μm. A theoretical simulation was performed using the tight-binding molecular dynamics method with a description of the van der Waals interaction by the Morse potential. The system described by the theoretical model was experimentally observed.

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“…In terahertz and infrared frequency range, the radiation characteristics of CNT dipole antenna arrays have been investigated by CST MICROWAVE STUDIO. It was shown that, N × N antenna arrays have a higher radiation efficiency than single CNT dipole antenna [10,11]. For the CNT antennas array without coupling, the array factor approach is used to investigate the antenna radiation pattern.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Modeling of Coupled Carbon Nanotube Dipole Antennas Based on Integral Equations System

Mourad¹,

Aguili²

2014

PIER M

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Abstract-Fundamental properties of carbon nanotube antenna are firstly investigated to predict the antenna bundle response. The carbon nanotube effects are mathematically introduced via a quantum mechanical conductivity. This paper presents a new formulation based on integral equations system to study the coupled carbon nanotube antennas. The proposed integral equations system is numerically solved by the moments method. Each dipole antenna is excited at its center by a gap voltage source. The aim of the developed method is to investigate the antennas interaction effects for any coupling distance. The obtained input impedances, the current distributions and the antenna radiation patterns are in agreement with those obtained by the effective conductivity method or by the array factor method, according to the coupling distances.

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SIMULATION OF CARBON NANOTUBE THz ANTENNA ARRAYS

Cited by 25 publications

References 13 publications

Terahertz (THz) Frequency Sources and Antennas - A Brief Review

Terahertz (THz) Frequency Sources and Antennas - A Brief Review

Giga- and terahertz-range nanoemitter based on peapod structure

Electromagnetic Modeling of Coupled Carbon Nanotube Dipole Antennas Based on Integral Equations System

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