Reflector design to mitigate finger effect on 60 GHz user devices
Reflector design to mitigate finger effect on 60 GHz user devices
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反射器设计可减轻 60 GHz 用户设备上的手指效应
DOI：
10.23919/eucap.2017.7928708
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
K. Haneda
中科院分区：
文献类型：
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作者：
M. Heino;C. Icheln;K. Haneda
在本文中，我们提出了一种新的方法，通过在60 GHz的手持通信设备上引入反射器来缓解附近手指对天线的强烈阴影效应。当手指位于距离天线3 mm处时，会产生很强的阴影，手指后面的远场辐射衰减为25-34分贝。在本文中，我们证明了在天线阵列周围放置一个抛物面反射器“环”可以显著地减少远场的阴影。有了项圈，手指后面的远场辐射提高了19-25分贝，使阵列即使在被手指覆盖的情况下也可以使用。研究了反射镜的大小和位置对测量结果的影响。
In this paper, we propose a novel method to mitigate the strong shadowing effect a nearby finger has on the antenna of a handheld communications device operating at 60 GHz, by introducing reflectors on the device. When the finger is located at the distance of 3 mm of the antenna, it causes strong shadowing and the far-field radiation attenuation behind the finger is 25–34 dB. In this paper, we show that a parabolic reflector “collar” that is placed around the antenna array can significantly reduce the shadowing in the far-field. With the collar, the far-field radiation behind the finger is improved by 19–25 dB, making the array usable even when covered by a finger. The effect of reflector size and location is studied.