Reduction of Internal Reflections in Integrated Lens Antennas for Beam-Steering
作者： Aki Karttunen , Juha Ala-Laurinaho , Ronan Sauleau , Antti V. Raisanen
DOI: 10.2528/PIER12102206
关键词: Beam steering 、 Coupling 、 Reduction (mathematics) 、 Physics 、 Side lobe 、 Input impedance 、 Permittivity 、 Directivity 、 Lens (optics) 、 Optics
摘要: The conventional integrated lens antennas (ILAs) for beam steering sufier from internal re∞ections that deteriorate the scanning properties. are known to afiect side lobes, cross-polarisation level, input impedance of feed, and mutual coupling. In this paper, ILAs designed exhibit very low re∞ection loss, i.e., minimize re∞ections. Wide ranges realistic relative permittivities feed element directivities considered. It is shown with any permittivity directivity it possible design shape in such a way loss low, moderate beam-steering angles, without resorting complicated matching layer. gain, directivity, beam-width, resulting distance between elements compared all lenses.
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