Journal ArticleDOI
Design Guidelines for the Cylindrical Dielectric Resonator Antenna Using the Recently Proposed HEM12d Mode [Antenna Designer's Notebook]
Debatosh Guha,Archita Banerjee,Chandrakanta Kumar,Yahia M. M. Antar,Mailadil Thomas Sebastian +4 more
TLDR
A comprehensive design guideline is provided to facilitate future designers estimating the best possible configuration for any specified application in terms of the material properties and dielectric resonator antenna's dimensions.Abstract:
Excitation of the higher-order HEM12d mode in a cylindrical dielectric resonator antenna (CDRA) was a big challenge, which was recently resolved by the present authors, nearly 30 years after the invention of the dielectric resonator antenna (DRA). Significantly, the radiation characteristics of this mode closely follow those due to the HEM11d mode, but with relatively higher gain. This breakthrough was made possible by introducing a new concept of feeding, and this was experimentally verified using a single prototype. Here, we have thoroughly investigated the design opportunities and limitations in terms of the material properties and dielectric resonator antenna's dimensions. Based on acquired knowledge, a comprehensive design guideline is provided to facilitate future designers estimating the best possible configuration for any specified application. As a significant part of this, the feed design has also been addressed. For practical verification, a customized dielectric resonator antenna was fabricated and measured, indicating excellent agreement with the proposed guidelines.read more
Citations
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Journal ArticleDOI
A review of the recent advances in dielectric resonator antennas
TL;DR: A comprehensive review of the state-of-the-art techniques and geometries which have been explored in the areas of dielectric Resonator Antennas (DRA) can be found in this article.
Journal ArticleDOI
Bandwidth control of cylindrical ring dielectric resonator antennas using metallic cap and sleeve loading
TL;DR: In this paper, the effect of loading a monopole-fed cylindrical ring dielectric resonator antenna using a metallic cap and metallic sleeve on its top and outer surface, respectively, is investigated.
Proceedings ArticleDOI
Survey, study and review of coordinate system notations using 3D environment for better understanding of EM fields behavior
TL;DR: This paper mainly focus on the conventions used in electromagnetic (EM) theory which induce unwillingness of study among students in this EM related subjetcs and expalin an alternative to improve its understanding in terms of increasing simplicity in the notations.
Journal ArticleDOI
An X-band gain-enhanced bidirectional antenna array using strip-loaded dielectric resonator operating in TE3δ1 mode
TL;DR: In this paper, a bidirectional dielectric resonator (DR) antenna array using back-to-back quasi-Yagi antenna configuration is proposed and implemented for the first time.
Journal ArticleDOI
The Dielectric Resonator Antenna with Good Electrical Properties and Special Shape for Camouflage
TL;DR: In this paper, a dielectric resonator antenna with a special shape for camouflage in the city is proposed, which is based on the results of a series of antennas with different materials and shapes chosen from the normal building.
References
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Journal ArticleDOI
The resonant cylindrical dielectric cavity antenna
TL;DR: In this article, an experimental investigation of the radiation and circuit properties of a resonant cylindrical dielectric cavity antenna has been undertaken, and a simple theory utilizing the magnetic wall boundary condition is shown to correlate well with measured results for radiation patterns and resonant frequencies.
Journal ArticleDOI
Computed Modal Field Distributions for Isolated Dielectric Resonators
TL;DR: In this article, electric and magnetic field patterns for five of the lowest resonant modes in cylindrical dielectic resonators are displayed in various planes of intersection, based on a method moments solution of the surface integral equation for bodies of revolution.
Journal ArticleDOI
Evaluation of Modes in Dielectric Resonators Using a Surface Integral Equation Formulation
TL;DR: In this paper, a moment method solution procedure for rotationally symmetric dielectric bodies has been applied to isolated cylindrical D resonators, and the frequencies, as well as Q factors due to radiation, have been determined for several of the lowest modes, including those of hybrid type.
Journal ArticleDOI
Higher Order Mode Excitation for High-Gain Broadside Radiation From Cylindrical Dielectric Resonator Antennas
TL;DR: In this paper, a cylindrical dielectric resonator antenna (CDRA) has been examined with a view for using it as another radiating mode with broadside radiation patterns.