Journal ArticleDOI
A modal analysis of the dielectric rod antenna excited by the HE 11 mode
Arthur D. Yaghjian,E. Kornhauser +1 more
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TLDR
In this article, a hybrid modal solution was developed for the circular semi-infinite dielectric rod antenna excited in the HE_{11} hybrid mode, and numerical results for the near-zone and far-zone fields, as well as the gain, beamwidth, and percentage of power radiated, were determined for three rods of different diameter and Dielectric constant by enclosing the rods with a concentric metal pipe and allowing the radius of the pipe to become large.Abstract:
A hybrid modal solution is developed for the circular semi-infinite dielectric rod antenna excited in the HE_{11} hybrid mode. Numerical results for the near-zone and far-zone fields, as well as the gain, beamwidth, and percentage of power radiated, are determined for three rods of different diameter and dielectric constant by enclosing the rods with a concentric metal pipe and allowing the radius of the pipe to become large. Comparison is made between these results and previous approximate methods of solution that have been applied to the dielectric rod antenna.read more
Citations
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Journal ArticleDOI
Dual-Mode Dielectric Resonator Loaded Cavity Filters
TL;DR: In this paper, a miniature realization of dust-mode filters is presented, where the dielectric resonator axially mounted in a waveguide below cutoff and resonating in a hybrid, degenerate mode is used.
Book ChapterDOI
Millimeter wave antennas
TL;DR: In this paper, a new class of leaky-wave antennas based on open millimeter waveguides has been proposed and investigated, and substantial progress has been achieved in integrated antennas where active and passive circuits, possibly in monolithic form, are combined with the radiating elements in one compact unit.
Journal ArticleDOI
Scattering by Abrupt Discontinuities on Planar Dielectric Waveguides
G.H. Brooke,M.M.Z. Kharadly +1 more
TL;DR: In this article, the authors considered the problem of scattering by an abrupt discontinuity on a planar dielectric waveguide and provided numerical solutions for both TE- and TM-modes for a wide range of discontinuities.
Journal ArticleDOI
Linearly and curvilinearly tapered cylindrical- dielectric-rod antennas
TL;DR: In this paper, the authors applied the body-of-revolution finite-difference time-domain (BOR-FDTD) method to the analysis of a tapered cylindrical-dielectric-rod fed by a metallic waveguide with a launching horn.
Journal ArticleDOI
Scattering-matrix analysis of linear periodic arrays
TL;DR: In this article, a spherical-wave source scattering-matrix description of acoustic radiators, along with reciprocity and power conservation, is applied to analyze infinite and finite linear periodic arrays that support traveling waves.
References
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Journal ArticleDOI
Cylindrical Dielectric Waveguide Modes
TL;DR: In this article, the propagation of cylindrical dielectric waveguide modes near cutoff and far from cutoff is considered and the relative amounts of Ez and Hz, and the transverse components of the field are determined for both sets of hybrid modes.
Journal ArticleDOI
Coupling of Optical Fibers and Scattering in Fibers
TL;DR: In this paper, the authors considered the phenomena of optical coupling of parallel fibers and scattering of light from a fiber due to rough walls and cast the problems in the form of integral equations with the use of a Green's function.
Journal ArticleDOI
Coupling of Modes on a Tapered Dielectric Cylinder
TL;DR: In this article, a generalized coupled-mode formulation for propagation in nonuniform media, where the modes are those associated with both the discrete and continuous eigenvalue spectrum, is presented.
Journal ArticleDOI
Evanescent and propagating modes of dielectric-loaded circular waveguide
P.J.B. Clarricoats,B.C. Taylor +1 more
TL;DR: In this article, the results of a theoretical study of the properties of evanescent and propagating azimuthally dependent modes of a circular waveguide containing an axial dielectric rod were presented.
Journal ArticleDOI
Radiation losses of the dominant mode in round dielectric waveguides
TL;DR: The radiation loss theory that has been developed in a series of earlier papers is extended to the dominant mode of the round dielectric waveguide and the losses of the dominate mode as well as the circular electric TE 01 mode ofThe round rod due to random wall perturbations are very nearly the same.
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