作者: Fikret Tokan , Nurhan Turker Tokan , Andrea Neto , Daniele Cavallo
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摘要: This paper introduces a quasi-planar antenna that provides, over broad frequency bandwidth, highly directive radiation in one plane, phase center stability as function of the and high efficiency. The structure is composed by dielectrically filled parallel plate waveguide supports propagation transverse electromagnetic (TEM) wave. truncated shaped planar lens to achieve beams $H$ -plane, while short flaring added at open end facilitate into free space. High efficiency achieved thanks peculiar feed lateral waves. An prototype has been manufactured measured. results highlight highest directivity for broadband (3:1 bandwidth) with very low dispersion frequency-stable center.