A Wideband Full-Angle SSPP-Fed Beam-Scanning Antenna with Low SLL
FAN Zhibo
ZHOU Yongjin
Abstract：A wideband and wide-angle beam-scanning antenna with low sidelobe levels(SLL)fed by spoof surface plasmon polaritons(SSPP)is designed.The SSPP feeding lines are adopted to excite the oval radiating patch array in the fast wave zone,whereas its low loss transmission in the slow wave zone is used to excite the spoof plasmonic antipodal Vivaldi antenna(AVA),realizing the beam scanning angle of 180° within 4～12 GHz(a relative band-width of 100％).And by arranging the oval radiating patches in a tapered way,the SLL during leaky-wave radia-tion is effectively reduced.The simulation results show that the SLL of the designed full-angle beam-scanning an-tenna is below-10 dB within the 4～12 GHz frequency band.Such antenna has considerable potential in applica-tion under condition of radar detection and target tracking.
Keywords：spoof surface plasmon polariton(SSPP)frequency scanning antennafull-angleantipodal Vivaldi antenna(AVA)low side-lobe levels(SLL)
Publication Date：2023-12-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 29-35 )