Development of a novel wideband conical Dielectric Resonator Antenna

Gharsallah, Hamed; Latrach, Lassaad; Osman, Lotfi

doi:10.1109/mms.2015.7375473

Cited by 4 publications

(8 citation statements)

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“…The system of CP provides great flexibility in the orientation of antennas in the transmission and reception. The CP is an excitation of two orthogonal fields which are combined and degenerated . Many studies have been done to improve the bandwidth of the DRA such as stacking dielectric resonator elements one on the other .…”

Section: Introductionmentioning

confidence: 99%

“…Decreasing the permittivity causes the decrease of the quality factor of the dielectric antenna, which leads to the increase of its bandwidth, and vice versa. For this purpose, we use low dielectric constant for the DRA because we have no need to store electrical energy . The change of two cylindrical dielectric sections in an appropriate arrangement is used to improve the bandwidth of DRA .…”

Section: Introductionmentioning

confidence: 99%

“…The change of two cylindrical dielectric sections in an appropriate arrangement is used to improve the bandwidth of DRA . Several other techniques were challenged to increase the bandwidth of DRA such as changing the shape of the tetrahedral and the conical shape dielectric resonator . However, despite the advantages of these techniques, the performance of the DRA remains limited .…”

Section: Introductionmentioning

confidence: 99%

“…11 Many studies have been done to improve the bandwidth of the DRA such as stacking dielectric resonator elements one on the other. 12 Decreasing the permittivity causes the decrease of the quality factor of the dielectric antenna, which leads to the increase of its bandwidth, and vice versa. For this purpose, we use low dielectric constant for the DRA because we have no need to store electrical energy.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Circularly polarized two‐layer conical DRA based on metamaterial

Gharsallah

Osman

Latrach

2017

Micro & Optical Tech Letters

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In this article, we propose a conical dielectric resonator antenna with metamaterial operating in the C band and excited by a circular polarization. The circular polarization of the antenna is produced by an inclination of 45° on the two environments with a different dielectric constant of the slot excitation. The metamaterial is superimposed on the antenna by λr and thus allows to increase the gain of 3 dB in all the bandwidth. Simulation results are carried out using Ansoft's HFSS software. The parametric study of the antenna has been performed by varying the permittivity ɛ2 and the radius a2 in a first step and by adding the metamaterial in a second step. The obtained bandwidths of the conical dielectric resonator antenna without and with metamaterial are 1.14 GHz and 1.07 GHz, respectively, with a corresponding increase in gain of about 3 dB.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Circularly polarized two‐layer conical DRA based on metamaterial

Gharsallah

Osman

Latrach

2017

Micro & Optical Tech Letters

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“…The circular polarization (CP) is preferred in the antenna applications because this system gives a wide flexibility in the orientation of the antennas in transmission mode as well as in reception mode [6], and can increase the bandwidth [7]- [8]. The broadband CP antenna applications include many areas such as radar, RFID and satellite.…”

Section: Introductionmentioning

confidence: 99%