Journal ArticleDOI
Effect of an air gap around the coaxial probe exciting a cylindrical dielectric resonator antenna
TLDR
In this paper, the effect of an air gap surrounding the feed probe of a cylindrical dielectric resonator (CDR) antenna on its input impedance and resonance frequency was investigated.Abstract:
Results of an experimental study pertaining to the effect of an air gap surrounding the feed probe of a cylindrical dielectric resonator (CDR) antenna on its input impedance and resonance frequency are presented. The antennas under consideration consist of a CDR positioned on a conducting ground plane and fed by a coaxial probe to excite either the TM/sub 01/ or HEM/sub 11/ antenna modes.read more
Citations
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Book ChapterDOI
Dielectric Resonator Antennas
H. K. Ng,Kwok Wa Leung +1 more
TL;DR: Linearly and circularly polarized conformal strip-fed dielectric resonator antennas (DRAs) are studied in this article, where a parasitic patch is used to excite a nearly degenerate mode.
Journal ArticleDOI
Dielectric Resonator Antennas: A Historical Review and the Current State of the Art
Aldo Petosa,A. Ittipiboon +1 more
TL;DR: In this paper, the authors present a historical review of the research carried out on dielectric resonator antennas (DRAs) over the last three decades and highlight major research activities in each decade.
Journal ArticleDOI
Recent advances in dielectric-resonator antenna technology
TL;DR: Several novel elements are presented that offer significant enhancements to parameters such as impedance bandwidth, circular-polarization bandwidth, gain, or coupling to various feed structures in the dielectric-resonator antenna environment.
Journal ArticleDOI
Input impedance of dielectric resonator antennas excited by a coaxial probe
TL;DR: In this paper, a formulation based upon the method of moments (MoM) is presented for the computation of input impedance of dielectric resonator antennas, which consists of axially symmetric D resonators fed by thin wire elements.
Journal ArticleDOI
Wide-band truncated tetrahedron dielectric resonator antenna excited by a coaxial probe
TL;DR: In this article, a truncated tetrahedron dielectric resonator antenna is examined numerically and experimentally for the impedance match and the radiation patterns of the antenna.
References
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Journal ArticleDOI
A numerical study of a dielectric disk antenna above grounded dielectric substrate
TL;DR: In this paper, an antenna made of a dielectric disk with a high permittivity mounted on top of a grounded substrate of low permittivities is analyzed, and a numerical procedure based on surface integral equations, derived from the equivalence principle, is used to compute the natural resonant frequencies for the HEM/sub 11/ mode from which the radiation Q factor of the antenna is obtained.
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Dielectric resonator antennas—a review and general design relations for resonant frequency and bandwidth
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