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Travelling-wave Ka-band Frequency Scanning Antennas for millimeter-wave imaging applications

机译:毫米波成像应用的行波Ka波段频率扫描天线

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In this paper, a novel travelling-wave printed Frequency Scanning Antenna (FSA), which can be used for imaging purposes, is proposed. All sample designs scan the space symmetrically about the broadside direction. For different scanning ranges, two low profile antennas are designed on a 6.6 mils thick Rogers 4350 board substrate layer. Impedance bandwidth of the first one covers 6.5GHz, from 29.5GHz to 36GHz, and this antenna scans 56° in angular space. The second antenna has 5.6GHz bandwidth from 30.6GHz to 36.2GHz, and scans 98° in angular space by means of switching the input port. The average gain and the Side-lobe level (SLL) of the first and the second antennas are 11.46dBi, 12.8dB, and 10.5dBi, 12.5dB, respectively.
机译:本文提出了一种新型的行波印刷频率扫描天线(FSA),可用于成像目的。所有样本设计均围绕宽边方向对称地扫描空间。对于不同的扫描范围,在6.6密耳厚的Rogers 4350电路板基板层上设计了两个矮型天线。第一个天线的阻抗带宽为6.5 GHz,从29.5 GHz到36 GHz,并且该天线在角空间中扫描56°。第二根天线具有从30.6GHz到36.2GHz的5.6GHz带宽,并通过切换输入端口在角度空间中扫描98°。第一和第二天线的平均增益和旁瓣电平(SLL)分别为11.46dBi,12.8dB和10.5dBi,12.5dB。

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