Preparation and characterization of liquid phase (55B2O3–45Bi2O3) sintered cobalt doped magnesium titanate for wideband stacked rectangular dielectric resonator antenna (RDRA)

Tripathi, Pankaj Kumar; Sahu, Bhagirath; Singh, S. P.; Kumar, Devendra

doi:10.1016/j.ceramint.2014.10.116

Cited by 13 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the GHz frequency range the atomic polarization and vibronic modes are the main phenomenon that contributes to the permittivity values. The vector network analyser utilizes the Nicholson-Weir-Ross technique [30] to evaluate permittivity and permeability using measured S-parameters. It is observed that the average permittivity value is around six and the average permeability μ values are nearly one in the frequency range 12.4-17 GHz.…”

Section: Resultsmentioning

confidence: 99%

Electromagnetic interference shielding effectiveness of $$\hbox {MgO}{-}\hbox {Al}_{2}\hbox {O}_{3}{-}\hbox {SiO}_{2}$$ MgO - Al 2 O 3 - SiO 2 glass–ceramic system

2017

View full text Add to dashboard Cite

MgO−Al 2 O 3 −SiO 2 (MAS)-based glass-ceramic system was prepared using very-low-cost raw materials, i.e., talc, calcined alumina and calcined china clay with titanium dioxide as a nucleating agent. Glass-ceramics were prepared by a two-step process. In the first step, raw materials were mixed in the required proportion and melted at 1450 • C followed by water quench into a glassy frit. In the second step, powdered glass frit was uniaxially dry pressed into pellets followed by sintering at 1200 • C for 3 h. X-ray diffraction pattern of the sintered compact shows well-defined peaks of cordierite along with some anorthite and magnesium titanium oxide. The microstructure study of sample shows the presence of crystalline and glassy phases. Permittivity and permeability measurements were performed in the microwave frequency range 12.4-17 GHz. The permittivity value of 5.7-6.0 and the permeability value of ∼1 were obtained. The reflection and transmission measurements show that the material possesses a shielding effectiveness in the range 2-10 dB over the frequency range 12.4-17 GHz.

show abstract

Section: Resultsmentioning

confidence: 99%

Electromagnetic interference shielding effectiveness of $$\hbox {MgO}{-}\hbox {Al}_{2}\hbox {O}_{3}{-}\hbox {SiO}_{2}$$ MgO - Al 2 O 3 - SiO 2 glass–ceramic system

2017

View full text Add to dashboard Cite

show abstract

“…This phase determination analysis is needed to ensure that the proposed MPCDR is a single phase (homogenous phase) material. As the presence of multi-phase in a single phase material will somewhat affect the antenna performance [24,25]. In Fig.…”

Section: Structural Analysismentioning

confidence: 99%

Design of a novel dielectric resonator antenna using MgTiO3–CoTiO3 for wideband applications

et al. 2015

View full text Add to dashboard Cite

“…The DRAs made from materials possessing high dielectric constant are generally more efficient, robust and low-profile structures that are used for wide range of applications [30][31][32][33]. Commonly used high permittivity dielectric materials are typically composed of ceramic materials that include various types of titanates such as barium titanate, strontium titanate, lead zirconate titanate, calcium titanate and magnesium titanate [34][35][36][37]. Ceramic materials are a suitable choice for the applications requiring high permittivity materials.…”

Section: B Composite Dra Designmentioning

confidence: 99%

Singly-Fed Large Frequency Ratio Composite Dielectric Resonator Antenna for sub-6 GHz and mm-Wave 5G Applications

Asadullah,

Khan,

Muhammad

et al. 2024

IEEE Access

View full text Add to dashboard Cite

A dielectric resonator antenna (DRA) is proposed for dual-band resonance for the mid-band (sub-6 GHz) and the high-band (mm-wave) 5G applications. The proposed composite DRA consists of an annular dielectric radiator concentrically integrated with a high-permittivity cylindrical DRA to realize resonance at two distinct frequencies with large frequency ratio. The impact of composition of two distinct dielectric materials on the radiation in both bands is analyzed taking into account the effective permittivity of the composite structure. The composite DRA is excited with single Co-planar Waveguide (CPW). The proposed DRA offers resonance at 4.44 GHz in the mid-band and 27.92 GHz in the high-band. The radiation characteristics demonstrate broadside radiation pattern having 6.8 dBi and 4.3 dBi of gain in both bands respectively. The efficiency of the DRA is observed to be 87.1% and 84.71% in the sub-6 GHz and mm-wave bands, respectively. The radiation characteristics make the proposed composite DRA a potential design for numerous 5G applications.INDEX TERMS Dual-band DRA, Large frequency ratio, Singly-fed DRA, 5G antenna, composite DRA.

show abstract

Preparation and characterization of liquid phase (55B2O3–45Bi2O3) sintered cobalt doped magnesium titanate for wideband stacked rectangular dielectric resonator antenna (RDRA)

Cited by 13 publications

References 24 publications

Electromagnetic interference shielding effectiveness of $$\hbox {MgO}{-}\hbox {Al}_{2}\hbox {O}_{3}{-}\hbox {SiO}_{2}$$ MgO - Al 2 O 3 - SiO 2 glass–ceramic system

Electromagnetic interference shielding effectiveness of $$\hbox {MgO}{-}\hbox {Al}_{2}\hbox {O}_{3}{-}\hbox {SiO}_{2}$$ MgO - Al 2 O 3 - SiO 2 glass–ceramic system

Design of a novel dielectric resonator antenna using MgTiO3–CoTiO3 for wideband applications

Singly-Fed Large Frequency Ratio Composite Dielectric Resonator Antenna for sub-6 GHz and mm-Wave 5G Applications

Contact Info

Product

Resources

About