论文标题
多材料3D打印的多光束级介电镜头天线
Multi-Beam Graded Dielectric Lens Antenna from Multi-Material 3D Printing
论文作者
论文摘要
现代通信系统将需要具有自适应功能的天线，该天线能够根据频道的要求来修改其性能。例如，移动临时网络需要指令天线，这些天线能够在360°方位角平面上沿任何方向辐射。因此，可以简单地操作具有多功能性能特征的共形天线引起了人们的关注。在本文中，我们提出了一个梯度指数透镜天线，设计用于在8个不同扇区辐射45°梁宽。当通过一个简单的开关喂养网络喂食时，镜头可以在45°段中提供360°方位角覆盖率。对辐射模式的进一步分析表明，如何通过简单的进料网络和每个进食元件的同时激发两个不同的多光束模式。所提出的镜头是通过多物质3D打印制成的。当单个扇形激发时，最终镜头以8.5 dbi辐射，并且在多光束模式下的最大增益为5.9 dbi。最后，当将优化的相位和振幅权重施加到每个端口时，镜头也可以在全向方向上辐射。
Modern communication systems will require antennas with adaptive functionality which are able to modify their performance based on the requirements of the channel. For example, mobile ad-hoc networks need directive antennas that are able to radiate in any direction across the 360° azimuth plane. Conformal antennas that can be simply operated to have multi-functional performance characteristics are therefore of interest. In this paper, we present a gradient-index lens antenna designed to radiate with a 45° beamwidth across 8 different sectors. When fed by a simple switched feeding network, the lens is able to provide 360° azimuth coverage in 45° segments. Further analysis of the radiation patterns shows how two distinct multi-beam patterns can be produced from simple feed networks and simultaneous excitation of each feeding element. The proposed lens is fabricated by multi-material 3D printing. The final lens radiates with a gain of 8.5 dBi when a single sector is excited, and with a maximum gain of 5.9 dBi in multi-beam mode. Finally, it is shown how the lens can also radiate omnidirectionally when optimised phase and amplitude weightings are applied to each port.
