Dielectric-Resonator-Based Composite Right/Left-Handed Transmission Lines and Their Application to Leaky Wave Antenna

Ueda, Tetsuya; Michishita, Naobumi; Akiyama, Masahiro; Itoh, T.

doi:10.1109/tmtt.2008.2003524

Cited by 52 publications

(31 citation statements)

References 13 publications

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“…Metamaterials (MTMs) on the other hand, are notable for their unusual electromagnetic properties not readily found in conventional materials [2]. Although few works on dielectric resonator antennas (DRA) based on the concept of MTM has been investigated in [3]- [5], but is worth noting, that the existing schemes features the application of DR to leaky-wave antennas (LWA).…”

Section: Introductionmentioning

confidence: 99%

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Dual band dielectric resonator based metamaterial antenna

Bala

Rahim

Murad

et al. 2014

2014 International Symposium on Antennas and Propagation Conference Proceedings

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© 2014 Institute of Antenna Engineers of Taiwan.A dielectric resonator based metamaterial antenna is presented for dual band operations. The hybrid design uses the dielectric resonator (DR) and split ring resonator (SRR) to radiate two resonant modes. The antenna has a compact size of 40 × 40 mm2. The peak realized gain of 6.24 dBi and 6.04 dBi is obtained at 5.5 GHz and 5.8 GHz respectively. Also a peak efficiency of 94% is obtained across the covering frequency. The antenna has potential applications for WiMAX (5.5 GHz) and WLAN (5.8 GHz) operations

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Section: Introductionmentioning

confidence: 99%

“…(b) (a) (a) (b) (c) (d) (c) WE2D_03 WE2D_03 WE2D_03 WE2D_03Proceedings of ISAP 2014, Kaohsiung, Taiwan, Dec [2][3][4][5]. 2014 …”

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Dual band dielectric resonator based metamaterial antenna

Bala

Rahim

Murad

et al. 2014

2014 International Symposium on Antennas and Propagation Conference Proceedings

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“…For fast computation of the CRLH LWA radiation patterns, an array factor (AF) approach was proposed in [3], in which the array element in each unit cell of the CRLH structure is considered as an isotropic point source. The AF approach has been employed by some followed researches for predicting the radiation patterns of CRLH LWA [4][5][6]. However, this approach can not give accurate patterns for the angular region near the axial direction of the LWA with finite size.…”

Section: Introductionmentioning

confidence: 99%

Prediction of radiation patterns of the CRLH leaky-wave antennas by different approaches

Wang

2011

2011 IEEE International Conference on Microwave Technology &Amp; Computational Electromagnetics

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In this paper, new approaches for predicting the radiation patterns of composite right/left-handed (CRLH) leaky-wave antenna (LWA) are proposed and compared with the conventional approaches. The conventional approach for fast calculating the scanning angle of main beam, as well as the conventional array factor (AF) approach based on isotropic point sources for calculating the radiation pattern, has low accuracy when the scanning angle or observing angle approaches to the axial directions. To solve this problem, an improved AF approach is proposed, which has taken into account the influence of non-isotropic point source in each period of the CRLH structure. In addition, a traveling-wave line-source approach is also presented, which is very simple but efficient and accurate for the computation of the radiation patterns of CRLH LWAs. Index Terms-Array factor (AF) approach, composite right/left-handed (CRLH) transmission line (TL), leaky-wave antenna (LWA), traveling-wave line-source approach

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“…As compared to planar circuit CRLH transmission line, CRLH waveguide has advantages of high power-handling capacity and low loss [6]- [9]. These features make CRLH waveguide attractive for some novel high-power applications [8]- [10]. Manuscript Unequally spaced antenna array has been researched for decades.…”

Section: Introductionmentioning

confidence: 99%

Unequally Spaced Resonant Slotted-Waveguide Antenna Array Based on the Infinite Wavelength Propagation Property of Composite Right/Left-Handed Waveguide

Liao

Chen

Wei

et al. 2010

Antennas Wirel. Propag. Lett.

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For the conventional resonant slotted-waveguide antenna array, all the adjacent element spacings along the waveguide must be equal to half the guide wavelength ( g 2). In this letter, a novel resonant slotted-waveguide antenna array based on the infinite wavelength propagation property of composite right/lefthanded (CRLH) waveguide is presented. The slot elements are unequally spaced to tailor the radiation pattern. To ensure that excitations of all the unequally spaced slot elements are in phase to generate a broadside beam, CRLH waveguide should work at the infinite wavelength propagation frequency. Three different nine-element antenna array examples are developed and simulated. The results show that the main-lobe beamwidth and pick sidelobe level (PSLL) performance improvements can be obtained in comparison with the conventional resonant slotted-waveguide antenna array. Index Terms-Composite right/left-handed (CRLH) waveguide, infinite wavelength propagation, metamaterials, resonant slottedwaveguide antenna array, unequally spaced array.

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Dielectric-Resonator-Based Composite Right/Left-Handed Transmission Lines and Their Application to Leaky Wave Antenna

Cited by 52 publications

References 13 publications

Dual band dielectric resonator based metamaterial antenna

Dual band dielectric resonator based metamaterial antenna

Prediction of radiation patterns of the CRLH leaky-wave antennas by different approaches

Unequally Spaced Resonant Slotted-Waveguide Antenna Array Based on the Infinite Wavelength Propagation Property of Composite Right/Left-Handed Waveguide

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