Graphene-based spoof surface plasmon polaritons antenna array for extreme environment
A graphene-based spoof surface plasmon polaritons antenna array was proposed for communication and detection needs in extreme environment.The antenna array was fabricated by highly conductive graphene film with spoof surface plasmon polaritons structures,which were divided into transmission and radiation sections.The transmission section was used to achieve slow-wave characteristics and field confinement to achieve low profile and miniaturization.The radiation section was used to achieve end-fire radiation into free space.The highly conductive graphene film makes it resistant to various extreme environment.Verified by simulation and measurements,the overall profile of the antenna array is 50 μm.After 1000 cycles of bending tests,high and low temperature tests,acid tests,alkaline tests,salt spray tests,the S11 parameter is less than-10 dB with 9.3 dBi peak gain from 5.5 to 6.5 GHz.
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