首页|A Compact Filtering Antenna System with Wide-Angle Scanning Capability for V2I Communication
A Compact Filtering Antenna System with Wide-Angle Scanning Capability for V2I Communication
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A compact filtering antenna system with wide-angle scanning is proposed for vehicle to infrastructure(V2I)communication which would handle complex communication scenarios.In this work,a wide beam filtering an-tenna is realized by using some inductive resistance structures such as metal pins and pillars,and capacitive struc-tures such as slots,parasitical patches to produce the radiation nulls at two sides of the operating frequency band and improve the impedance matching in the passband.Meanwhile,the wide beam capability is also realized by the above structure.Furthermore,two H-and E-plane linear arrays are designed for the beam scanning capability with filtering characteristics based on the proposed antenna.To verify the proposed design concept,a prototype is fabri-cated and measured.The measurement and simulation agree well,demonstrating an excellent filtering characteristic with the operating frequency band from 3.18 to 3.45 GHz(about 8.1％),the high total efficiency of about 88％,and 3-dB-beamwidth of more than 100° and 120° in the above two arrays,respectively.Additionally,the proposed arrays can realize the beam scanning up to the coverage of 112° and 120° with a lower gain reduction and a good filtering characteristic,respectively.
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