An investigation of dielectric resonator antenna produced from silicon (100) enhanced by strontium doped-barium zirconate films

Ali, Wan Fahmin Faiz Wan; Rejab, Nik Akmar; Othman, Mohamadariff; Ain, Mohd Fadzil; Ahmad, Zainal Arifin

doi:10.1007/s10971-011-2641-2

Cited by 12 publications

(4 citation statements)

References 29 publications

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“…Usually, they are minor impurity phases. However, they are lowered with increasing concentration of dopant [1]. In this case, at concentration of Sr-dopant equal to 0.7/BSZ (0.7), the secondary phases of BaCO 3 are disappeared.…”

Section: Resultsmentioning

confidence: 86%

“…The use of ceramic thick films in electronic has drawn great attention over the past few decades in the microwave application such as phase shifters, oscillators, tunable resonator antennas, etc. [1][2][3][4]. More importantly, they/thick films are favourable compare to bulk shapes in order to miniaturize the size of the devices and components [3].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Ba0.3Sr0.7ZrO3 Ceramic Thick Films Prepared by Sol-Gel Technique

Ali

Othman

Rejab

et al. 2012

AMR

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This manuscript is explained and discussed the properties of ceramic thick films, [Ba0.3Sr0.7ZrO3,BSZ (0.7)] synthesized through sol-gel route. The gel decomposition was studied by thermogravinometry analysis (TGA). From thermal analysis, it had shown that BSZ (0.7) phase started formed at 800 °C and above. The crystal structure of this composite film studied exhibited highly polycrystalline materials by X-ray diffraction analysis. From high magnification observation of field emission scanning electron microscopy (FESEM), grain boundaries of BSZ (0.7) films are clearly defined meanwhile grains displayed are in flaky shape. The average diameters of the grains measured were 94.6 nm. However, grains boundaries of BSZ (0.0) films, are unclear and grains slightly look dendritic structure. Electrical characterizations of the films are carried out with impedance analyzer at 4 - 12 GHz respectively. Both of electrical permittivity and loss tangent observed are dependable with microstructural and structural of the films.

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Section: Resultsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Ba0.3Sr0.7ZrO3 Ceramic Thick Films Prepared by Sol-Gel Technique

Ali

Othman

Rejab

et al. 2012

AMR

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“…This could be due the effect of CeO2 as an additive element in ZTA ceramic. Radiation patterns are significant in specifying the direction of wave propagation in DRA applications [5]. The radiation pattern showed the omnidirectional signal that improved the transmitter and receiver in all directions.…”

Section: Resultsmentioning

confidence: 99%

“…Dielectric properties were sensitive to the presence of the second phase. An early findings showed that the presence of additive in BaTiO3 was reported to affect the permittivity and loss tangent of dielectric resonator [4][5][6][7]. This in turn, influences the dielectric resonator antenna's (DRA's) resonant frequency.…”

Section: Introductionmentioning

confidence: 99%

Structural Characteristic and Dielectric Properties of Zirconia Toughened Alumina

Rejab

Ali

et al. 2020

MSF

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Zirconia toughened alumina (ZTA) has shown a great effect in the cutting tool application due to its high hardness and comparable fracture toughness. However, the capability of the materials to be applied in as the dielectric resonator antenna (DRA) is not being discussed in detail. In this study, an attempt is made to further explore the potential of ZTA to be applied in DRA. Various related characterization techniques were applied that is subjected to DRA properties. The addition of CeO2 (0 wt.% to 15 wt.%) on ZTA has been pressed into pellets shape and sintered at 1600 °C for 2 hours under pressureless conditions. Based on the XRD analysis, only corundum and yttria doped zirconia phases were present. Shift in position of the zirconia peaks was observed due to an existence of Ce2Zr3O10 phase. For the DRA measurement, ZTA with 10 wt.% CeO2 addition have resonated at 6.76 GHz which is suitable for X-band applications. Meanwhile the radiation pattern indicated the omnidirectional characteristic, which suggested that the signal could be received by this dielectric antenna in various positions. Therefore, ZTA- 10 wt.% CeO2 have high potential to be used as DRA that operates X-band frequency range applications.

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Influence of microstructure on dielectric properties of Nd-doped barium titanate synthesized by hydrothermal method

Zhang

Cao

et al. 2012

J Mater Sci: Mater Electron

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An investigation of dielectric resonator antenna produced from silicon (100) enhanced by strontium doped-barium zirconate films

Cited by 12 publications

References 29 publications

Synthesis and Characterization of Ba<sub>0.3</sub>Sr<sub>0.7</sub>ZrO<sub>3</sub> Ceramic Thick Films Prepared by Sol-Gel Technique

Synthesis and Characterization of Ba<sub>0.3</sub>Sr<sub>0.7</sub>ZrO<sub>3</sub> Ceramic Thick Films Prepared by Sol-Gel Technique

Structural Characteristic and Dielectric Properties of Zirconia Toughened Alumina

Influence of microstructure on dielectric properties of Nd-doped barium titanate synthesized by hydrothermal method

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