A Single-Feed Cylindrical Superquadric Dielectric Resonator Antenna for Circular Polarization

Zainud-Deen, S.H.; Malhat, Hend A.; Awadalla, K. H.

doi:10.2528/pier08090904

Cited by 40 publications

(26 citation statements)

References 23 publications

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“…The other is that the phase difference of two orthogonal modes is 90 degrees. The often utilized technique to generate CP wave in the microstrip antenna is feeding asymmetrically in the microstrip patch to generate two degenerated modes and to complete impedance matching [11][12][13][14][15][16][17][18][19][20]. However, it is impossible to generate a circularly polarized wave in a single dipole antenna because only z-directed current distribution exists on the thin cylindrical conductor.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Wide-Strip Dipole Antenna for Circularly Polarized Wave Operations

Chi¹,

Bor²,

Deng³

et al. 2010

PIER

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Abstract-A thin dipole antenna is a well-known antenna with linearly polarized wave operation. In this work, a wide-strip dipole antenna is proposed for circularly polarized wave operations. To obtain circularly polarized (CP) wave operations, there are two conditions to be satisfied. One is that the antenna must have two degenerated orthogonal modes with different resonant frequencies. The other is that the phase difference of two orthogonal modes is 90 degrees. To match the first condition, the slab width W is tuned to generate current distributions directed in two different directions. In addition, the second condition is matched by asymmetric feeding point by adjusting the overlapped square width C. The parametric study is completed by the Ansoft HFSS simulator. Simulated results reveal that the CP wave is mainly influenced by the slab width W . The influences of the parameters C and d on the performances of the proposed antenna are also investigated in this paper. Taking −8 dB as reference, there are two working bands for this proposed antenna and the measured center frequencies are 0.66 GHz and 2.04 GHz, respectively, and the corresponding bandwidths are 0.27 GHz (40%) and 1.78 GHz (87%), respectively. In addition, the measured center frequencies and bandwidths of the axial ratio are 1.94 GHz and 0.53 GHz (27%), respectively.Corresponding author: L.-P. Chi (cp531220@ms23.hinet.net). 70Chi et al.

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Section: Introductionmentioning

confidence: 99%

A Wideband Wide-Strip Dipole Antenna for Circularly Polarized Wave Operations

Chi¹,

Bor²,

Deng³

et al. 2010

PIER

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show abstract

“…As we know, antennas with circular polarization (CP) [15][16][17][18][19][20][21][22][23][24][25] can reduce polarization mismatch between transmitting and receiving antennas in wireless communication systems. However, most of the previous work on the hybrid DRAs, which makes use of the resonance of the feeding structure, was primarily concentrated on linearly polarized designs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Cross-Slot-Coupled Dual-Band Circularly Polarized Hybrid Dielectric Resonator Antenna

Zou¹,

Pan²,

Zuo³

et al. 2014

PIER C

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Abstract-In this paper, a cross-slot-coupled dual-band circularly polarized (CP) hybrid dielectric resonator antenna (DRA) is presented. The design concept is based on using a cross-slot as both a feeding structure of the DRA and an effective radiator. Full wave simulation is used to verify the proposed design concept in this paper. A prototype antenna is designed, fabricated, and measured. Good agreement is obtained between the simulated and measured results.

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“…There has been increasing interest in investigations of the dielectric resonator antennas (DRAs) [1][2][3][4]. DRAs are known for the inherent merits of small size, ease of excitation, low dissipation loss and high radiation efficiency [5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas

Zou¹,

Pan²,

Zuo³

et al. 2013

PIER Letters

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Abstract-The one-step stair-shaped dielectric resonator antennas (DRAs) with a circular cross-section are studied theoretically and experimentally in this paper. The reasons why the one-step stairshaped DRAs have a wideband performance have been investigated. It is shown in this paper that the modes excited in the one-step stairshaped DRA with circular cross-section can be regarded as pseudo HEM 111 and pseudo HEM 113 modes. The pseudo HEM 111 /HEM 113 mode exhibits similar radiation patterns but a different resonant frequency and radiation Q factor to the HEM 111 /HEM 113 mode of the cylindrical DRA. By properly choosing the dimensions of the one-step stair-shaped DRA, the two modes can be used to obtain a wideband antenna.

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A Single-Feed Cylindrical Superquadric Dielectric Resonator Antenna for Circular Polarization

Cited by 40 publications

References 23 publications

A Wideband Wide-Strip Dipole Antenna for Circularly Polarized Wave Operations

A Wideband Wide-Strip Dipole Antenna for Circularly Polarized Wave Operations

Investigation of a Cross-Slot-Coupled Dual-Band Circularly Polarized Hybrid Dielectric Resonator Antenna

Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas

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