The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform
Hao Zhou - One of the best experts on this subject based on the ideXlab platform.
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a folded reflectarray antenna with a Planar siw slot array antenna as the primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Shunhua Yu, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry $E$ - and $H$ -plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured $\vert{\rm S}_{11}\vert$ less than $-$ 10 dB over the frequency band of 41.6–44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a $-$ 3 dB gain drop bandwidth of 41.8–44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
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A Folded Reflectarray Antenna With a Planar SIW Slot Array Antenna as the Primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry E- and H-plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured |S 11 | less than -10 dB over the frequency band of 41.6-44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a -3 dB gain drop bandwidth of 41.8-44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
Mei Jiang - One of the best experts on this subject based on the ideXlab platform.
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a folded reflectarray antenna with a Planar siw slot array antenna as the primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Shunhua Yu, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry $E$ - and $H$ -plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured $\vert{\rm S}_{11}\vert$ less than $-$ 10 dB over the frequency band of 41.6–44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a $-$ 3 dB gain drop bandwidth of 41.8–44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
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A Folded Reflectarray Antenna With a Planar SIW Slot Array Antenna as the Primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry E- and H-plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured |S 11 | less than -10 dB over the frequency band of 41.6-44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a -3 dB gain drop bandwidth of 41.8-44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
P. K. Nair - One of the best experts on this subject based on the ideXlab platform.
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Chemically Deposited Se Thin Films and Their Use as a Planar Source of Selenium for the Formation of Metal Selenide Layers
Journal of The Electrochemical Society, 2006Co-Authors: K. Bindu, M. T. S. Nair, P. K. NairAbstract:Selenium thin films of thickness ∼300 nm were deposited from a solution of sodium selenosulfate of pH 4.5. These films are amorphous, but they are crystalline and photoconductive through annealing for 15 min at 150-200°C. In this paper we present the properties of these films and their use as a Planar Source of selenium vapor (1.7 X 10 -6 mol/cm 2 of the film) to react with metal films to form metal selenide layers. For this, metal films of Ag, Sn, In, Cu, Sb, etc., deposited by thermal evaporation, are kept in contact with the Se-thin film and are heated at temperatures typically 500 mV and short-circuit current density of 2-5 mA/cm 2 .
Wei Hong - One of the best experts on this subject based on the ideXlab platform.
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a folded reflectarray antenna with a Planar siw slot array antenna as the primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Shunhua Yu, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry $E$ - and $H$ -plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured $\vert{\rm S}_{11}\vert$ less than $-$ 10 dB over the frequency band of 41.6–44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a $-$ 3 dB gain drop bandwidth of 41.8–44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
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A Folded Reflectarray Antenna With a Planar SIW Slot Array Antenna as the Primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry E- and H-plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured |S 11 | less than -10 dB over the frequency band of 41.6-44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a -3 dB gain drop bandwidth of 41.8-44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
Yan Zhang - One of the best experts on this subject based on the ideXlab platform.
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a folded reflectarray antenna with a Planar siw slot array antenna as the primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Shunhua Yu, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry $E$ - and $H$ -plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured $\vert{\rm S}_{11}\vert$ less than $-$ 10 dB over the frequency band of 41.6–44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a $-$ 3 dB gain drop bandwidth of 41.8–44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.
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A Folded Reflectarray Antenna With a Planar SIW Slot Array Antenna as the Primary Source
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Mei Jiang, Wei Hong, Yan Zhang, Hao ZhouAbstract:An integrated design of a Planar Source-fed folded reflectarray antenna (FRA) with low profile is proposed to achieve high gain for Q-band millimeter wave high data rate wireless communication applications. A Planar substrate integrated waveguide (SIW) slot array antenna is adopted as the primary Source to illuminate the proposed FRA. Considerations of the off-focus loss and the asymmetry E- and H-plane beamwidths loss of the Planar Source are thoroughly investigated to improve the aperture efficiency of the reflectarray antenna. A prototype is implemented and the experimental results are in good agreement with the predictions, which exhibit a measured |S 11 | less than -10 dB over the frequency band of 41.6-44 GHz, a maximum boresight gain of 31.9 dBi at 44 GHz with the aperture efficiency of 49% and a -3 dB gain drop bandwidth of 41.8-44.9 GHz. By integrating with the Planar feed, the proposed folded reflectarray antenna benefits from its low-profile, low cost, and the ability of coPlanar integration with millimeter wave Planar circuits while maintaining the good performance in terms of gain and efficiency.