Stacked fractal tetrahedron shaped dielectric resonator antenna for UWB applications

Trivedi, Kedar; Pujara, Dhaval

doi:10.1109/aemc.2017.8325671

Cited by 4 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3.90 GHz is in between the degenerated modes, thus both conditions for the generation of CP satisfied [13] and [28]. Moreover, the S 11 BW, has been improved signaficaly, as the parasitic patches help in achieving additional resonant frequency which in turn lead to wider bandwidth [5]. The simulated reflection coefficient |S 11 ≤ −10dB| bandwidth of ∼30.12% and CP bandwidth of ∼6.01% have been achieved as shown in Fig.…”

Section: Circularly Polarized Mimo Antennamentioning

confidence: 81%

“…The use of a parasitic patch was first introduced by [9] and later by [10] on the DRA. Approximately 116.7% impedance bandwidth has been achieved by the use of a parasitic patch at the bottom of stacked fractal tetrahedron shaped DRA, but the antenna is linearly polarized [5]. As reported in [11], where very narrow BW of 2.4% is obtained by placing the parasitic patch on hemispherical DRA.…”

Section: Introductionmentioning

confidence: 85%

“…this, the BW enhancement and miniaturization of the antenna cannot be achieved at the same time [3] and [4]. In [5]- [7], wider BW has been reported using perforated or fractural DRA, however, these approaches make the design more complicated and fragile. Moreover, the precise cutting of perforated DRA is a challenging task.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mutual Coupling Reduction Using Hybrid Technique in Wideband Circularly Polarized MIMO Antenna for WiMAX Applications

et al. 2019

View full text Add to dashboard Cite

In this paper, a novel wideband circularly polarized multiple-input multiple-output (MIMO) dielectric resonator antenna (DRA) has been proposed for worldwide interoperability for microwave access (WiMAX) applications. The mutual coupling (MC) between closely placed DRA units at 0.5λ has been significantly reduced by using a new hybrid technique. The exclusive features of the proposed MIMO antenna include wide impedance matching bandwidth (BW), broadband circular polarization (CP), and suppressed MC between the radiating elements. The first step of hybrid technique is the employment of parasitic patch at an optimized distance beside the conformal metal strip of the two identical rectangular DRAs in order to generate CP wave along with a wide impedance matching BW over the same frequency range. In the final step, the MC is suppressed significantly along with the broadband CP by placing the DRAs diagonally at an optimized position. The proposed MIMO antenna is the hybrid of the parasitic patch and the diagonal position of radiating elements. The CP BW offered by the proposed antenna is ∼20.82% (3.58-4.40 GHz) in conjunction with an impedance-matching BW of ∼38.51% (3.50-4.95 GHz). Moreover, MC less than −28 dB is achieved over the entire band and −26 dB at 3.89 GHz (minimum of the AR) through the hybrid technique. The prototype of the proposed antenna geometry is fabricated and measured. A good agreement has been attained between the simulated and measured results.

show abstract

Section: Circularly Polarized Mimo Antennamentioning

confidence: 81%

Section: Introductionmentioning

confidence: 85%

See 1 more Smart Citation

Mutual Coupling Reduction Using Hybrid Technique in Wideband Circularly Polarized MIMO Antenna for WiMAX Applications

et al. 2019

View full text Add to dashboard Cite

show abstract

“…By introduction of fractal slots, insertion of low permittivity material, and use of triangular loop‐shaped conformal patch, the authors have achieved bandwidth improvement of about 69.3% in comparison to the results of Reference . In References , the authors have discussed fractal triangular prism DRA design and stacked fractal triangular prism DRA design. In this article, various design parameters, parametric analysis, and its fabricated results are discussed.…”

Section: Introductionmentioning

confidence: 91%

Design and development of ultrawideband‐stacked triangular prism‐shaped dielectric resonator antenna

Trivedi

Pujara

2019

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

In this letter, a stacked triangular prism shaped dielectric resonator antenna (DRA) is proposed for ultrawideband (UWB) applications. A combination of three techniques namely, stacking of DRAs, introduction of triangular shaped conformal patch loop excited by coaxial feed, and fractal geometries are utilized on triangular prism shaped DRA to achieve UWB. Improvement in bandwidth (BW) is achieved by introduction of triangular shaped fractal slots and by sandwiching low permittivity DR material is sandwiched between two high permittivity DR materials. Finally, by introduction of triangular loop shaped conformal patch, UWB is achieved. The proposed antenna is fabricated and measured impedance BW of about 120.9% covering frequency range from 3.3 to 13.4 GHz (C‐ and X‐band) is achieved. 98.8% radiation efficiency and average gain of 7 dBi has been achieved over the entire frequency band of interest. Discussions on various design parameters and its associated results are included in this letter.

show abstract

A review of the recent advances in dielectric resonator antennas

Mukherjee

Patel

Mukherjee

2020

Journal of Electromagnetic Waves and Applications

View full text Add to dashboard Cite

Stacked fractal tetrahedron shaped dielectric resonator antenna for UWB applications

Cited by 4 publications

References 5 publications

Mutual Coupling Reduction Using Hybrid Technique in Wideband Circularly Polarized MIMO Antenna for WiMAX Applications

Mutual Coupling Reduction Using Hybrid Technique in Wideband Circularly Polarized MIMO Antenna for WiMAX Applications

Design and development of ultrawideband‐stacked triangular prism‐shaped dielectric resonator antenna

A review of the recent advances in dielectric resonator antennas

Contact Info

Product

Resources

About