Design of a Beam Forming Dielectric Cylindrical Ebg Antenna

Biancotto, Claudio; Record, Paul

doi:10.2528/pierb09101506

Cited by 11 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is also simple and inexpensive to manufacture as compared to competing cylindrical EBG structures that are structurally more complicated. For instance, there are many which are composed of metal cylinders or other elements, arranged in circular array formations with radial and/or circumferential periodicities [5], [7], [19]- [28], thus being bulky, heavy, volumetrically cumbersome, and are easily damaged. Several others are in the form of longitudinal or axially-oriented corrugations [29]- [31], which are also more complex, fragile, and costlier to fabricate.…”

Section: ) Structural and Cost Benefitsmentioning

confidence: 99%

“…Besides these pursuits of intense field confinement and surface wave propagation, the converse realm also constitutes an important subject of research, that being the suppression of such modal propagation along the surfaces of rods, or also termed as cylindrical electromagnetic bandgap (EBG) surfaces [3]- [7]. Throughout literature, EBGs have customarily been defined to be the frequency spans within which only slow surface waves are forbidden [8]- [10], whilst fast space waves have not been expressly included in the prohibition.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis by Asymptotic Boundary Conditions of Strip-Grated Dielectric Pipe Over Dielectric Rod With Wide Total Band-Gap as Multifrequency Cylindrical Leaky-Wave Antennas

Kehn

2022

IEEE Access

View full text Add to dashboard Cite

In this paper, the method of classical vector potential analysis along with the asymptotic strips boundary conditions (ASBC) is used to treat conducting strip grated dielectric pipes wrapped over core dielectric cylindrical rods. By virtue of the periodically-textured surface, this structure is able to exhibit plasmonic behaviors that facilitate strong surface field localization and wave propagation, thereby offering itself as cylindrical surface-wave waveguides or antennas. It can also be configured to exhibit electromagnetic band-gap (EBG) properties, yielding what is known as cylindrical EBG structures. As opposed to a typical counterpart whose core rod is instead conducting, the core dielectric is herein demonstrated to be vital in realizing wide total band-gaps in which neither slow surface nor fast space waves exist, something that the conducting core rod version is incapable of, being only able to offer surface-wave band-gaps, as do many others in the literature that have neglected the suppression of fast space waves as well. By coaxially connecting various such rod structures, each with its own distinct total band-gap, multi-frequency, multi-functional cylindrical antennas with mitigated inter-band interference even under simultaneous operations can be achieved when the pass-band of any one rod (in which its operating frequency lies) falls within the total band-gaps of all others, as herein investigated. Manufactured prototypes are also measured, yielding experimental results that agree well with theoretical predictions.

show abstract

Section: ) Structural and Cost Benefitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis by Asymptotic Boundary Conditions of Strip-Grated Dielectric Pipe Over Dielectric Rod With Wide Total Band-Gap as Multifrequency Cylindrical Leaky-Wave Antennas

Kehn

2022

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Scattering, diffraction, and propagation problems concerning cylindrical obstacles play a significant role, even today. There are functional devices of great importance, such as antennas, switches, electromagnetic (EM) band gap structures with multiple applications, reflectors, polarizers, resonators, splitters, and so on made on the basis of cylindrical arrays [1,2,3,4,5].…”

Section: Introductionmentioning

confidence: 99%

“…In [1] the results of measurements and simulations of a cylindrical EBG antenna are presented. The simulations were fulfilled by a computer code using the finite-difference time-domain method.…”

Section: Introductionmentioning

confidence: 99%

Microwave Analysis of Scattered and Absorbed Powers of Semiconductor and Metamaterial Cylinder Structures

et al. 2019

View full text Add to dashboard Cite

Here is presented our numerical investigations based on the rigorous solution of the Maxwell’s equations for analyses of absorbed and scattered powers of a semiconductor-metamaterial array with a window defect. The array structure consists of a finite set of infinite parallel, circular cylinders that can be made of the different lossy and/or lossless isotropic materials. We used our developed computer code, which allowed us to consider an array consisting of an arbitrary number of cylinders. According to our code, cylinders can be located at different distances and have differing diameters. There is a limitation: Cylinders should not cross each other. We numerically examined two cylindrical arrays with electromagnetic (EM) band-gap (EBG) defects. The absorbed and scattered powers were analyzed there for parallel and perpendicular polarizations of the incident microwave. We investigated dependencies on the operating frequency and the radius (R) of an arc of the arranged thirteen n-Si cylinders with the low semiconductor specific resistivity of 0.5, 2, and 10 Ω∙m. We have discovered that the arrays may have features of a waveguide or a microwave reflector.

show abstract

“…Cylindrically periodic structures have received a growing attention because of their potential applications to the designs of photonic crystal fibers [9,10], directive antennas or beam-switching antennas [11][12][13][14]. Recently, we have proposed a semi-analytical approach for twodimensional electromagnetic scattering, guidance and radiation by the cylindrical arrays.…”

Section: Introductionmentioning

confidence: 99%

Rigorous Analysis of Electromagnetic Scattering by Cylindrical Ebg Structures

Jandieri

Yasumoto

Cho

2011

PIER

View full text Add to dashboard Cite

Abstract-Cylindrical EBG structures excited by a Hertzian dipole source and TM polarized plane wave at oblique incidence are analyzed using a rigorous semi-analytical method based on the cylindrical Floquet mode expansion. Concentric and eccentric cylindrical EBG structures are investigated. Resonance and stopband characteristics in the transmission spectra of the cylindrical EBG structures, enhancement and shading effects in the excited fields, radiation patterns of Hertzian dipole located inside the cylindrical EBG structures in both H-plane and E-plane are numerically studied. Co-polarization and cross-polarizations scattering effects between the electric and magnetic fields are investigated at the oblique incidence of plane waves.

show abstract

Design of a Beam Forming Dielectric Cylindrical Ebg Antenna

Cited by 11 publications

References 20 publications

Analysis by Asymptotic Boundary Conditions of Strip-Grated Dielectric Pipe Over Dielectric Rod With Wide Total Band-Gap as Multifrequency Cylindrical Leaky-Wave Antennas

Analysis by Asymptotic Boundary Conditions of Strip-Grated Dielectric Pipe Over Dielectric Rod With Wide Total Band-Gap as Multifrequency Cylindrical Leaky-Wave Antennas

Microwave Analysis of Scattered and Absorbed Powers of Semiconductor and Metamaterial Cylinder Structures

Rigorous Analysis of Electromagnetic Scattering by Cylindrical Ebg Structures

Contact Info

Product

Resources

About