首页|A wide-band continuous-beam-scanning leaky-wave an-tenna with a stable gain fed by spoof surface plasmon polaritons
A wide-band continuous-beam-scanning leaky-wave an-tenna with a stable gain fed by spoof surface plasmon polaritons
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A leaky-wave antenna(LWA)supporting wide-band and continuous-beam scanning is proposed in this paper.It is based on a spoof surface plasmon polariton(SSPP)transmission line(TL)periodically loaded with circular patches.The optimized antenna structure enables its continuous-beam scanning of 69° from backward through broadside to forward with a stable high radiation gain as the operating frequency increases from 7 GHZ to 15 GHz(with a relative bandwidth of 72.73％).Furthermore,a perfect electronic conductor(PEC)reflector is added at a distance of about 0.3λ0(λo is the vacuum wavelength for the broadside radiation)to improve the antenna gain,achieving a gain increase of about 3 dB.The proposed LWA is expected to find applications in planar wireless communication systems.
CHAI Bo、Li Yajing、BAI Yukun
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Engineering Research Center of Communication Devices and Technology,Ministry of Education,School of Inte-grated Circuit Science and Engineering,Tianjin University of Technology,Tianjin 300384,China
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