A Novel Small Tapered Slot Antenna for Passive Imaging Sensors
A Novel Small Tapered Slot Antenna for Passive Imaging Sensors
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用于无源成像传感器的新型小锥形缝隙天线
DOI：
10.1109/mwsym.2005.1516544
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Mizuno
中科院分区：
文献类型：
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作者：
M. Sato;T. Hirose;H. Sato;K. Sawaya;K. Mizuno
提出了一种用于94 GHz波段无源毫米波成像阵列系统的小型平面天线。其主要特点是一个抛物面锥形缝隙天线结构与中心切割金属线，控制其辐射模式，并降低了旁瓣水平的H-平面。通过使用这种结构，我们减少了十分之一的天线尺寸相比，传统的锥形缝隙天线，而这种天线的实际增益为12.4 dBi。此外，该天线具有圆形辐射图案。因此，它适用于PMMW成像阵列。我们还提出了简单的CPW到SLOT的过渡，插入损耗为0.5 dB之间的90 - 100 GHz的范围。
We propose a compact planar antenna for a 94-GHz-band passive mm-wave (PMMW) imaging array system. The key feature is a parabolic tapered slot antenna structure with a center cut metal line that controls its radiation pattern and reduces the sidelobe level of the H-plane. By using this structure, we reduced the antenna size by one tenth compared to conventional tapered slot antennas, whereas the actual gain of this antenna was 12.4 dBi. In addition, this antenna has a circular radiation pattern. Therefore, it is suitable for a PMMW imaging array. We also present simple CPW-to-SLOT transitions with insertion loss of 0.5 dB between the 90 – 100GHz ranges.