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Relevant bibliographies by topics / EBG Substrate

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Journal articles

Academic literature on the topic 'EBG Substrate'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 September 2023

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Journal articles on the topic "EBG Substrate"

1

Zhu, S., and R. Langley. "Dual-band wearable antennas over EBG substrate." Electronics Letters 43, no. 3 (2007): 141. http://dx.doi.org/10.1049/el:20073151.

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2

Zhang, Xiaoyan, Zhaopeng Teng, Zhiqing Liu, and Bincheng Li. "A Dual Band Patch Antenna with a Pinwheel-Shaped Slots EBG Substrate." International Journal of Antennas and Propagation 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/815751.

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A dual band microstrip patch antenna integrated with pinwheel-shaped electromagnetic band-gap (EBG) structures is proposed. The patch antenna consists of a pair of spiral slots on the patch and is fed by using coaxial line. Its full-wave simulation predicts dual bands from 4.43 GHz to 4.56 GHz and from 4.96 GHz to 5.1 GHz in the C-band. The designed EBG with eight pinwheel-shaped slots addresses smaller frequency drift compared with the traditional square mushroom-like EBG when applied to the patch antenna. With the help of designed EBG structure, the impedance bandwidth, radiation efficiency, and gain of the patch antenna are improved significantly. The 10 dB impedance bandwidth is extended by 3.4% and 6.5% at the low- and high-frequency bands, respectively. The radiation efficiency is increased by 5% and 17.8%, and the realized gain is enhanced by 1.87 dB and 1.56 dB at 4.57 GHz and 5.06 GHz, respectively. The designed EBG structure may have many applications in other types of planar antennas.

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3

Aktar, Mst Nargis. "Parametric Performance Analysis of Patch Antenna Using EBG Substrate." International Journal of Wireless & Mobile Networks 4, no. 5 (2012): 79–88. http://dx.doi.org/10.5121/ijwmn.2012.4506.

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4

Zhu, Shaozhen, and Richard Langley. "Dual-Band Wearable Textile Antenna on an EBG Substrate." IEEE Transactions on Antennas and Propagation 57, no. 4 (2009): 926–35. http://dx.doi.org/10.1109/tap.2009.2014527.

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5

Ikeuchi, R., and A. Hirata. "Dipole Antenna Above EBG Substrate for Local SAR Reduction." IEEE Antennas and Wireless Propagation Letters 10 (2011): 904–6. http://dx.doi.org/10.1109/lawp.2011.2167119.

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6

Hall, B. G., P. W. Betts, and J. C. Wootton. "DNA sequence analysis of artificially evolved ebg enzyme and ebg repressor genes." Genetics 123, no. 4 (1989): 635–48. http://dx.doi.org/10.1093/genetics/123.4.635.

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Abstract The ebg system has been used as a model to study the artificial selection of new catalytic functions of enzymes and of inducer specificities of repressors. A series of mutant enzymes with altered catalytic specificities were previously characterized biochemically as were the changes in inducer specificities of mutant, but fully functional, repressors. The wild type ebg operon has been sequenced, and the sequence differences of the mutant enzymes and repressors have been determined. We now report that, contrary to our previous understanding, ebg enzyme contains 180-kD alpha-subunits and 20-kD beta-subunits, both of which are required for full activity. Mutations that dramatically affect substrate specificity and catalytic efficiency lie in two distinct regions, both well outside of the active site region. Mutations that affect inducer specificity of the ebg repressor lie within predicted sugar binding domains. Comparisons of the ebg beta-galactosidase and repressor with homologous proteins of the Escherichia coli and Klebsiella pneumoniae lac operons, and with the galactose operon repressor, suggest that the ebg and lac operons diverged prior to the divergence of E. coli from Klebsiella. One case of a triple substitution as the consequence of a single event is reported, and the implications of that observation for mechanisms of spontaneous mutagenesis are discussed.

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7

Dewan, Raimi, M. K.A. Rahim, M. R. Hamid, M. E. Jalil, and H. A. Majid. "Mutual Coupling Reduction in Antenna Using EBG on Double Substrate." TELKOMNIKA (Telecommunication Computing Electronics and Control) 15, no. 2 (2017): 799. http://dx.doi.org/10.12928/telkomnika.v15i1.6123.

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8

Dewan, Raimi, M. K.A. Rahim, M. R. Hamid, M. E. Jalil, and H. A. Majid. "Mutual Coupling Reduction in Antenna Using EBG on Double Substrate." TELKOMNIKA (Telecommunication Computing Electronics and Control) 15, no. 2 (2017): 799. http://dx.doi.org/10.12928/telkomnika.v15i2.6123.

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9

Yang, Hong, Dan Liu, and Wei Chen. "Research and Design of Magnetic Substrate Microstrip Antenna with Electromagnetic Band-Gap Structure." Applied Mechanics and Materials 685 (October 2014): 314–19. http://dx.doi.org/10.4028/www.scientific.net/amm.685.314.

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Based on the magnetic materials (JV-5) substrate, Double L-shaped slot microstrip antenna is designed. The bandwidth is over 2 times that of the normal substrate and a 40% reduction in size happens.. On this basis, the microstrip antenna with magnetic substrate EBG structure is designed and the EBG structure uses the corrosive effects of joint floor, namely getting periodic H-shaped and circular structures by the floor corrosion, and performing a simulation with HFSS14.0. The results show that the EBG structure of magnetic material having a prominent advantage of the miniaturization and bandwidth-broaden compared to a microstrip antenna with non-magnetic materials substrate, resulting in more than 10% relative bandwidth and a slight gain loss. To some degree, introducing EBG structure can reduce the size of the antenna and increase its bandwidth, and it also improve the gain and radiation characteristics of the antenna.Key words: EBG structure; magnetic material;Double L-shaped slot microstrip antenna; gain

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10

Wang, Zhong Qing, Li Dan Peng, Bao Li, and Rong Sen Xu. "Study on Band-Gap Characteristics of EBG Material and its Application in Microstrip Antenna." Applied Mechanics and Materials 391 (September 2013): 512–15. http://dx.doi.org/10.4028/www.scientific.net/amm.391.512.

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In this letter, the characteristics of electromagnetic band-gap (EBG) material are studied, and then a novel microstrip antenna is proposed by using EBG structure. The antenna is constituted with loading the EBG structure into the dielectric substrate. The size of microstrip patch in EBG antenna with the coaxial feed is only 0.22×0.22 whereis the free space wavelength at 5.22 GHz, which the microstrip antenna is designed by the technique of patch grooved and short pin. The simulation results show that the EBG antenna has two resonant frequencies at 5.22GHz and 5.68GHz, the gains of them reaching to 5.32dB, 4.98dB respectively. Moreover, it has a good impedance matching in 5.14GHz~5.86GHz, which covers two bandwidths of WLAN.

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