Cross-shaped dielectric resonator antenna analysis using conformal finite difference time domain method

Farahat, N.; Yu, Weikuan; Mittra, R.; Koleck, T.

doi:10.1049/el:20010765

Cited by 6 publications

(8 citation statements)

References 3 publications

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“…To equally excite both arms the cross DRA is placed above the slot aperture. A relative phase shift of 90°with short magnetic dipole characteristics have been shown by each arm of the cross DRA [83,84]. A material with a medium to high Circularly Polarized Dielectric Resonator Antennas: Design… dielectric constant (2 r ¼ 10 À 40) is used for making of the cross shape dielectric.…”

Section: Cross-shape Dramentioning

confidence: 99%

“…A material with a medium to high Circularly Polarized Dielectric Resonator Antennas: Design… dielectric constant (2 r ¼ 10 À 40) is used for making of the cross shape dielectric. Thus to generate the circular polarization, fields with 90°out of phase and equal amplitude are radiated by the two arms of the cross DRA and the required resonant frequencies of the two rectangular DRAs is first estimated to design the two arm lengths [83,85]. For a cross DRA designed at 11.5 GHz with dielectric constant 2 r ¼ 10:8; L 1 ¼ 10 mm; L 2 ¼ 6 mm; W ¼ 3:2 mm; h ¼ 3:15 mm; a 3-dB axial ratio bandwidth of 5 % was reported for a single cross DRA element and if four cross DRA element is sequentially rotated a 3-dB axial ratio bandwidth of 16 % was obtained [80].…”

Section: Cross-shape Dramentioning

confidence: 99%

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Circularly Polarized Dielectric Resonator Antennas: Design and Developments

Kumari

Gangwar

2015

Wireless Pers Commun

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This paper describes basic of circular polarization, fundamental concepts, theory and review study of the circularly polarized dielectric resonator antenna (CP DRA) over the last three decades. Wide 3 dB axial ratio bandwidth, impedance bandwidth, compactness and high gain are demonstrated on the basis of attainable performance of CP DRA designed. The latest techniques for generating the circular polarization as well as enhancing the performance are also covered. The latest advancements in single-point feed, multiple point feed and sequential rotation CP DRA design techniques are also investigated. CP DRA catches the potential application in the Satellite communication, mobile communication, GPS, WLAN, WIMAX, Mobile communication and Radar system.

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Section: Cross-shape Dramentioning

confidence: 99%

Section: Cross-shape Dramentioning

confidence: 99%

Circularly Polarized Dielectric Resonator Antennas: Design and Developments

Kumari

Gangwar

2015

Wireless Pers Commun

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“…Recently, apart from the study on linearly polarized operation [1] , more attention has been paid to the circularly polarized (CP) DRA, especially the single-feed CP DRAs, such as an asymmetric slot-coupled CP DRA [2] , that with a perturbed annular slot [3] , those with special geometries [4] , and the DRA printed by a perturbed metal strip [5] , etc.…”

Section: Introductionmentioning

confidence: 99%

Novel circularly-polarized ceramic dielectric resonator antenna excited by a corner-cut square patch

Zhong

et al. 2011

J. Shanghai Univ.(Engl. Ed.)

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Novel circularly-polarized ceramic dielectric resonator antenna excited by a corner-cut square patch LI Li-xian ( ), ZHONG Shun-shi ( ), XU Sai-qing ( ), CHEN Min-hua ( ) Abstract A ceramic dielectric resonator antenna excited by a corner-cut square patch for the circularly-polarized operation is introduced. The effect of patch size and cut size is investigated, showing that the resonant frequency of the antenna can be changed by simply changing the patch size. The reflection, axial ratio, and radiation characteristics of the antenna are found. Measurements were carried out to verify the design. The antenna is compact in structure, which is attractive in the application as the satellite communication terminals.

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“…Recently, more attention has been paid to the circular polarized DRA because of its insensitivity to transmitter and receiver orientation. Circular polarization created with a single feed has been reported using a slot-fed cross-shaped resonator [2], and a half-cylindrical or elliptic resonator fed by a coaxial probe [3,4]. Two nearly degenerate orthogonal modes can also be excited and generate circularly polarized fields by using strips [5] or metallic patches [6].…”

Section: Introductionmentioning

confidence: 99%

“…They can be classified into three groups: frequency [1], polarization [2,3], and pattern-reconfigurable antennas [4 -6]. The pattern reconfigurability of the antenna is one of the most effective methods to improve the performance of a wireless-communication system by minimizing interference and maximizing signal-to-noise ratio (SNR).…”

Section: Introductionmentioning

confidence: 99%

Circularly polarized dielectric resonator antenna

Nannini

Ribero

Dauvignac

et al. 2005

Microw. Opt. Technol. Lett.

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signal loss through the silicon substrate, and high power dissipation. In this paper, the small-signal substrate resistance effect in the drain node of common-source amplifiers has been investigated. For a cascade common-source amplifier, it was found that both the power gain and NF can be simultaneously improved when the floating-body method is adopted. Thus, the figure-of-merit Gain/NF ϫ P DC ratio has been improved by 25.1%. This circuit will be very useful for integration with other subcircuits in receiver ICs due to its power-saving merit and will provide another trade-off method between MOS and BJT topologies in BiCMOS processes. REFERENCES 1. J.D. Cressler, SiGe HBT technology: A new contender for Si-based RF and microwave circuit applications, IEEE Trans Microwave Theory

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Cross-shaped dielectric resonator antenna analysis using conformal finite difference time domain method

Cited by 6 publications

References 3 publications

Circularly Polarized Dielectric Resonator Antennas: Design and Developments

Circularly Polarized Dielectric Resonator Antennas: Design and Developments

Novel circularly-polarized ceramic dielectric resonator antenna excited by a corner-cut square patch

Circularly polarized dielectric resonator antenna

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