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首页> 外文会议>IEEE International Symposium on Antennas and Propagation;USNC/URSI National Radio Science Meeting >A W-band Single-Layer Metal-Only Array Antenna with Two Focal Planes
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A W-band Single-Layer Metal-Only Array Antenna with Two Focal Planes

机译：具有两个焦平面的W波段单层仅金属阵列天线

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摘要

A W-band single-layer metal-only array (MOA) antenna with the capacity of focusing electromagnetic waves on both reflection plane and transmission plane is proposed in this paper which is suitable for passive millimeter wave imaging system (PMI). Double focal planes of the antenna make contribution to potentially raise the imaging frame rate of PMI and increase the spatial sampling rate. Square slot-type elements are employed to cover the 2n phase range and a discontinuities-slope horn is designed with symmetrical pattern offset to feed the MOA. To validate the proposed design, a MOA with 144 elements is designed and simulated. The size of -3dB focal spot is around 1.81mm at 94GHz with 3.6mm depth of focus, and the focusing efficiency is about 14.5%.
机译：本文提出了一种能够将电磁波聚焦在反射平面和透射平面上的W波段单层金属阵列天线，该天线适用于无源毫米波成像系统（PMI）。天线的双焦平面有助于潜在地提高PMI的成像帧速率并提高空间采样率。采用方槽型元件来覆盖2n相范围，并设计了具有对称图案偏移的不连续坡度喇叭，以馈入MOA。为了验证所提出的设计，设计并仿真了具有144个元素的MOA。在94GHz时，-3dB焦点的大小约为1.81mm，焦点深度为3.6mm，聚焦效率约为14.5％。

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