Design of Microstrip Antenna Arrays Fed by Slots on Broad and Narrow Walls of the Rectangular Waveguide
Design of Microstrip Antenna Arrays Fed by Slots on Broad and Narrow Walls of the Rectangular Waveguide
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DOI：
10.1109/iwem.2018.8536682
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发表时间：
2018-08
期刊：
影响因子：
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通讯作者：
Y. Kimura;Fumihiko Nonaka;Shintaro Shimamori;Sakuvoshi Saito
中科院分区：
文献类型：
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作者：
Y. Kimura;Fumihiko Nonaka;Shintaro Shimamori;Sakuvoshi Saito
本文提出了矩形波导宽壁上横向缝隙馈电和窄壁上纵向缝隙馈电的微带天线阵，分别用于平行和垂直于轴线的线极化。采用波导宽壁上横向缝隙激励的串联馈电二元微带天线阵作为平行极化阵元。另一方面，采用窄壁上纵向缝隙激励的组合式双环微带天线实现垂直极化。这两种阵列都能有效地抑制以一个波导波长间隔排列的缝隙阵列所产生的栅瓣。
This paper presents microstrip antenna arrays fed by transverse slots on a broad wall and fed by longitudinal slots on a narrow wall of the rectangular waveguide for linear polarization parallel and perpendicular to the axis, respectively. A series-fed two-element microstrip antenna array excited by a transverse slot on the broad wall of the waveguide is used as an array element for parallel polarization. On the other hand, combined dual-ring microstrip antenna excited by a longitudinal slot on the narrow wall is used for perpendicular polarization. The both proposed arrays can suppress grating lobes produced by a slot array arranged at a spacing of one guided wavelength.