AbstractConicalbeamantennas(CBA),,,-Perot(FP),FPantennaswithconicalbeamareinvestigatedtoobtainhighgainperformance,,wesummarizethebackground,,,theconditionofachievingconicalbeamsisdiscussedfromtheviewofmulti-,adesignonFPantennaswithconicalbeamispresentedbyillustratingdesignsontheoverallstructure,theprimaryradiatedsource,theFFS(frequencyselectivesurface),theeffectsonthegainhomogeneityisanalyzedfromtheviews
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