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Planar array with bidirectional elements for tunnel environments.

ABSTRACT: The growing demands for wireless communications in tunnel environments are driven by requests for maintaining uninterrupted internet access for users in tunnels as well as wireless connections for wireless sensors, security, and control networks. Nevertheless, wireless networks in tunnel environments are associated with technical challenges related to elongated wireless coverage in two opposite near-end-fire directions. Here, we introduce a low-profile bidirectional antenna that can be mounted on a large ground plane and that has a dual-magnetic-current mode exhibiting radiation patterns with 3-dB beamwidth coverage at near-end-fire angles. Furthermore, we realized a planar array with eight such bidirectional antennas that were configured as a sparse array in order to reduce the commonplace issues of mutual coupling and grating lobes. The radiation beams of the proposed antenna array can scan in the end-fire area (60°?

SUBMITTER: Wang R

PROVIDER: S-EPMC5684329 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Planar array with bidirectional elements for tunnel environments.

Wang Ren R Wang Bing-Zhong BZ Ding Xiao X Ou Jun-Yu JY

Scientific reports 20171113 1

The growing demands for wireless communications in tunnel environments are driven by requests for maintaining uninterrupted internet access for users in tunnels as well as wireless connections for wireless sensors, security, and control networks. Nevertheless, wireless networks in tunnel environments are associated with technical challenges related to elongated wireless coverage in two opposite near-end-fire directions. Here, we introduce a low-profile bidirectional antenna that can be mounted o ...[more]

PMID: 29133877

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