Design of Mushroom Shaped Dielectric Resonator Antenna for Communication Applications
01 Feb 2020-
TL;DR: In this paper, a new mushroom-shaped 2.4GHz dielectric resonator antenna has been proposed, which can achieve a higher impedance bandwidth of about 71% which is generally 10% in the case of conventional DRA.
Abstract: The use of dielectric resonator antenna (DRA) has gained massive interest in the field of microwave and millimeter-wave applications due to the absence of metal parts, which lead to loss and power dissipation at higher frequencies. This paper has proposed a new mushroom-shaped, 2.4GHz dielectric resonator antenna having higher impedance bandwidth. This new antenna is designed using a material of dielectric constant near to 10 and can achieve a higher impedance bandwidth of about 71% which is, generally 10% in the case of conventional DRA. The hybrid antenna gain (5dB), higher radiation efficiency, wideband width, and voltage standing wave ratio can make it compatible with customized different applications of communications. The proposed antenna is lighter in weight and also cost-effective. Finite element methods have applied to design the antenna as well as verify the results.
Citations
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01 Jan 2023
TL;DR: In this article , a small cylindrical DRA antenna with a partial ground plane fed by a key-shaped microstrip line is presented, which has a band that goes from 2.03 to 3.06 GHz and a fractional bandwidth of 40%.
Abstract: This work presents a small cylindrical DRA antenna with a partial ground plane fed by a key-shaped microstrip line. It is made up of a 9.8 relative permittivity resonator and a dielectric constant of 4.4 FR4 substrate. To improve the antenna’s performance, partial ground plane and feeding mechanism techniques were used. HEM11δ basic mode is transmitted through DRA via the key-shaped microstrip line connected to the antenna. DRA excited the fundamental frequency by aligning the DRA’s position, which results in more coupling. The proposed antenna has a band that goes from 2.03 to 3.06 GHz and a fractional bandwidth of 40%. The concept proposed here is ideal for Wi-Fi applications.
References
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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.
Abstract: An experimental investigation of the radiation and circuit properties of a resonant cylindrical dielectric cavity antenna has been undertaken. The radiation patterns and input impedance have been measured for structures of various geometrical aspect ratios, dielectric constants, and sizes of coaxial feed probes. A simple theory utilizing the magnetic wall boundary condition is shown to correlate well with measured results for radiation patterns and resonant frequencies.
1,434 citations
"Design of Mushroom Shaped Dielectri..." refers background in this paper
...The antenna applications of the dielectric resonator (DR) first introduced in the early 1980s [1]....
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TL;DR: In this article, a wideband dielectric resonator antenna with conical shape was designed by shape shaping of the materials and the excitation was considered to be a coaxial probe displaced from the cone axis.
Abstract: Wideband dielectric resonator antennas are designed by shaping the dielectric materials. New dielectric resonator antennas of conical shape are experimentally examined and some results are verified numerically. Four different cone shapes are considered. The excitation is considered to be a coaxial probe displaced from the cone axis. Two configurations show wideband performance. The split cone achieved about 50% impedance bandwidth. The radiation patterns are computed within the band to examine the effect of the different modes excited on the radiation patterns.
299 citations
"Design of Mushroom Shaped Dielectri..." refers methods in this paper
...Different methods have taken for designing Dielectric Resonator with different materials [4], embedded Dielectric Resonator [5], and different DR configurations like conical [6], triangular [4], stair-shape [7], and so on....
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TL;DR: In this paper, a hybrid antenna consisting of an annular dielectric resonator antenna combined with a quarter-wave monopole to simultaneously act as a radiator and a loading element is presented.
Abstract: A hybrid antenna is presented, consisting of an annular dielectric resonator antenna combined with a quarter-wave monopole to simultaneously act as a radiator and a loading element, producing an ultra wideband response. A prototype antenna is designed and a 3:1 bandwidth is demonstrated.
177 citations
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.
Abstract: A truncated tetrahedron dielectric resonator antenna is examined numerically and experimentally. The tetrahedron base is an equilateral triangular over a ground plane and excited by a coaxial probe to provide a broad side radiation pattern. Three different configurations are analyzed: the truncated tetrahedron when the wide base is attached to the ground plane, the narrow base attached to the ground plane, and the equitriangular cylinder. Results are verified experimentally and numerically. The tetrahedron with narrow base attached to the ground plane achieves wide-band performance for the impedance match and the radiation patterns of about 40%.
169 citations
"Design of Mushroom Shaped Dielectri..." refers methods in this paper
...Antenna configuration of DRA, the Perfect Electric Conductor material etched on a substrate and dielectric resonating material mounted above the ground, referred to as Dielectric Resonator....
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...This paper presents the review on past done work in the field of Dielectric Resonator Antenna....
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...Different methods have taken for designing Dielectric Resonator with different materials [4], embedded Dielectric Resonator [5], and different DR configurations like conical [6], triangular [4], stair-shape [7], and so on....
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...Keywords—High radiation efficiency, Wide bandwidth, High gain, Dielectric Resonator Antenna, Hybrid configuration....
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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.
Abstract: A resonant mode (HEM12δ), other than those ( HEM11δ and TM01δ) conventionally excited and used in a cylindrical dielectric resonator antenna (CDRA) has been examined with a view for using it as another radiating mode with broadside radiation patterns. Excitation of the mode, being the most challenging aspect, has been discussed and resolved by employing an innovative technique. The proposed concept has been successfully verified and experimentally demonstrated for the first time. More than 8-dBi peak gain with excellent broadside radiation has been obtained from a prototype shaped from a commercially available low-loss dielectric material with relative permittivity 10.
132 citations