The behavior of high frequency tunable dielectric resonator antenna (DRA) with the addition of excess Fe2O3 in Y3Fe5O12 (YIG) formulation

Ali, Wan Fahmin Faiz Wan; Othman, Mohamadariff; Ain, Mohd Fadzil; Abdullah, Norazharuddin Shah; Ahmad, Zainal Arifin

doi:10.1007/s10854-013-1624-1

Cited by 18 publications

(20 citation statements)

References 24 publications

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“…Therefore, the corresponding dimensions of the DR sectors were fixed at a radius of a = 7.5 mm and depth d = 2.5 mm. All other parameters of the DRA design i.e., size of the T-junction stub at the open end of a microstrip line, ground plane, and substrate dimensions were based on our previous work [21][22][23]. It was found that by having a Tjunction of the size (s = 3 mm) at the open end of the microstrip line, the DRA can be effectively excited with strong electromagnetic coupling and ultra wideband response.…”

Section: Antenna Configuration and Designmentioning

confidence: 99%

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

et al. 2015

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Section: Antenna Configuration and Designmentioning

confidence: 99%

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

et al. 2015

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“…The characteristics of DRA design (i.e. microstrip line, ground plane and substrate dimensions) were based on our previous work [9] as shown in Fig. 1.…”

Section: Antenna Configurationmentioning

confidence: 99%

“…Its dielectric constant, e r, of 15, low dielectric loss (tan d) and its tunable resonance frequency ability [9][10][11]. In addition, YIG also possesses magnetic properties (l is between 2 and 5).…”

Section: Introductionmentioning

confidence: 99%

“…YIG has been reported to have high frequency antenna applications [12]. However, the calculated bandwidth efficiency [BW % = (F 2 -F 1 )/ F C 9 100 where F C is the center resonance frequency at minimum return loss, and; F 1 & F 2 are resonance frequencies at -10 dB intersections] indicated that the fabricated antenna from YIG is having a low BW % (4.46 %) [9]. This value would easily cause radio interference during signal transmission because the operating frequency size is in the narrow range (0.38-0.44 GHz) [9,13,14].…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of YIG bandwidth efficiency through Ce-doping for dielectric resonator antenna (DRA) applications

Ali

Jaafar

Ain

et al. 2014

J Mater Sci: Mater Electron

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YIG is useful for dielectric resonator antenna (DRA) but its narrow size of frequency bandwidth (0.38-0.44 GHz), negatively influenced the DRA performance. An investigation on Ce doped YIG through the conventional solid-state reaction based on the Y 3-x Ce x Fe 5 O 12 (Ce x ; x = 0-1.5) system was carried out. Outside the range of 0.1 B x B 1.0 where maximum solid solution could be achieved, a new impure phase of CeFeO 3 (CIP) to YIG was detected. Ce affected the sample microstructure and reduced the grain size of YIG. For the DRA measurement, the addition of Ce enhanced the bandwidth efficiency (BW %) up to 11.16 %. The radiation patterns of all the samples indicated the omnidirectional characteristic, which suggested that the signal could be received by this dielectric antenna in various positions. Therefore, Ce doped YIG successfully enhanced the operating frequency of the antenna and was suitable for the X-band frequency range applications.

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“…13 Recently, great efforts have been paid on the frequency tunable DRA and various frequency tuning techniques have been exploited. [14][15][16][17][18] For example, the lengths and positions of the parasitic slot and strip can be used to tune the frequency of the DRA. 19,20 However, this approach does not support dynamic frequency tuning.…”

Section: Introductionmentioning

confidence: 99%

Thermally tunable slot-coupled dielectric resonator antenna

Chen

Wang

et al. 2017

AIP Advances

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Absorption enhancement and total absorption in a graphene-waveguide hybrid structure AIP Advances 7, 025101 (2017); https://doi.org/10.1063/1.4975706The influence of the edge effect on the skyrmion generation in a magnetic nanotrack AIP Advances 7, 025105 (2017) A thermally tunable slot-coupled dielectric resonator antenna (DRA) has been designed and prepared by placing a thermosensitive ceramic resonator onto the slot. Typical magnetic resonance occurs in the resonator, which is closely related to its dielectric constant. Because the dielectric constant of the ceramic resonator decreases as the temperature increases, the resonance frequency of the proposed DRA increases as the temperature increases. The simulated results are in good agreement with the measured ones, which confirms the thermally tunable behavior. This approach provides a way for designing the frequency tunable antennas. © 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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The behavior of high frequency tunable dielectric resonator antenna (DRA) with the addition of excess Fe2O3 in Y3Fe5O12 (YIG) formulation

Cited by 18 publications

References 24 publications

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

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

Enhancement of YIG bandwidth efficiency through Ce-doping for dielectric resonator antenna (DRA) applications

Thermally tunable slot-coupled dielectric resonator antenna

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