Hemispherical dielectric resonator antenna mounted on or embedded in spherical ground plane with a superstrate

Zainud-Deen, S.H.; El-Shalaby, Noha A.; Awadalla, K. H.

doi:10.1109/nrsc.2011.5873587

Cited by 8 publications

(10 citation statements)

References 18 publications

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Haiwen Liu . on nonplanar and flexible GP were presented in several studies [5]- [8], [12]- [15]. However, research in this field mainly focuses on exhibiting and utilizing specific phenomena.…”

Section: Traditional Drasmentioning

confidence: 99%

“…However, research on conformal DRAs on curved surface is incomplete. Though DRAs on nonplanar ground were exhibited in [5]- [8], the antennas themselves are scarcely conformal. In [9], we proposed theoretical models for convex and concave conformal DRAs, yet ignored the ground effect from the conformal metal plane.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, they enjoy low profile, compact size, and deployment flexibility. In conformal devices, the GP of antennas can be finite as an arc [9], closed as a sphere [5], or hybrid as a cylinder [6].…”

Section: Introductionmentioning

confidence: 99%

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Estimation and Utilization of Ground Effects on Conformal Dielectric Resonator Antennas

Pan

Wang

et al. 2019

IEEE Access

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Ground effects on arc-shaped conformal dielectric resonator antennas (DRAs) working in the TE z 11δ mode are investigated and utilized to attain various radiation performances. Manipulation of directivity patterns are achieved with the help of the three-dimensional curved metal ground. The backlobe, beamwidth, broadside gain, backscattering, and cross-polarization level of the antenna are all readily controllable. The geometric theory of diffraction is applied to provide an intuitional explanation for the radiation changes. Detailed analysis is then conducted from the perspective of ground current. It is found that the current distribution is affected by configurations of both the arc DRA and ground plane. Based on this, analytical methods are developed to calculate the ground effects exclusively for conformal arc-shaped DRAs. Next, the design theory of arc DRAs with curved ground is proposed. To demonstrate it, two conformal DRAs owning directional and wide beams, respectively, are designed as paradigms. At last, a prototype is fabricated and measured for validation. INDEX TERMS Conformal antennas, dielectric resonator antennas (DRAs), ground effects, radiation patterns.

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Section: Traditional Drasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimation and Utilization of Ground Effects on Conformal Dielectric Resonator Antennas

Pan

Wang

et al. 2019

IEEE Access

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“…The d ielectric resonator antenna (DRA) has man y ad vant ag es includ ing wide band widt h and h igh radiat ion efficiency that are necessary for thoseapplicat ions [8][9][10]. The rad iation characteristics of cylindrical DRA and hemispherical DRA p laced on or embedded in superquadric cylindrical, circular cy lindrical and spherical ground planes are investigated in [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Hemispherical Dielectric Resonator Antennas over Non-Planar Surfaces for Direction Finding Systems

Zainud-Deen¹,

El-Shalaby²,

Awadalla³

2012

IJEA

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“…In addition, DRA resonant antennas can have wide bandwidth and large angle of coverage. The radiation characteristics of cylindrical and hemispherical DRAs placed on or embedded in circular cylindrical and spherical ground planes are investigated in [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Hemispherical DRA Antennas Mounted on or Embedded in Circular Cylindrical Surface forProducing Omnidirectional Radiation Pattern

Zainud-Deen¹,

El-Shalaby²,

Awadalla³

2011

IJCNS

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The radiation characteristics of hemispherical DRA elements mounted on or embedded in a hollow circular cylindrical ground structure are investigated. The performance of the DRA array which operates at about 1.8 Ghz, is studied. Factors influencing the array performance, such as the number of elements and element spacing are explained. The perforated dielectric technique is used to design the array from a single dielectric sheet. The overall profile of the antenna can be significantly reduced. The radiation patterns with respect to the number of DRA elements are depicted

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Hemispherical dielectric resonator antenna mounted on or embedded in spherical ground plane with a superstrate

Cited by 8 publications

References 18 publications

Estimation and Utilization of Ground Effects on Conformal Dielectric Resonator Antennas

Estimation and Utilization of Ground Effects on Conformal Dielectric Resonator Antennas

Hemispherical Dielectric Resonator Antennas over Non-Planar Surfaces for Direction Finding Systems

Hemispherical DRA Antennas Mounted on or Embedded in Circular Cylindrical Surface forProducing Omnidirectional Radiation Pattern

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