Spurek Jan, Raida Zbynek
Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 616 00 Brno, Czech Republic.
Sensors (Basel). 2022 Apr 12;22(8):2945. doi: 10.3390/s22082945.
At present, most millimeter wave 5G systems operate at frequencies ranging from 24 GHz to 39 GHz. Nevertheless, the new 5G release is going to increase the supported 5G spectrum into the 60 GHz band. In this communication, we discuss a methodology of converting a modular antenna array, which was originally designed for the 17 GHz unlicensed band, to the emerging 60 GHz 5G band. The antenna array is of a modular architecture, allowing a simple extension to a higher number of elements. The feeding structure is composed of substrate-integrated waveguides (SIW), allowing relatively simple and cheap manufacturing. As revealed by a sensitivity analysis, the frequency up-conversion significantly increases the need for precision of the used manufacturing technology. Subsequently, the structure is optimized to minimize the repercussions of manufacturing variations. The properties of the converted array are studied when equipped with parasitic patches to increase the axial ratio (AR) bandwidth.
目前，大多数毫米波5G系统工作在24吉赫兹至39吉赫兹的频率范围内。然而，新的5G版本将把支持的5G频谱扩展到60吉赫兹频段。在本通信中，我们讨论了一种将最初为17吉赫兹免授权频段设计的模块化天线阵列转换到新兴的60吉赫兹5G频段的方法。该天线阵列采用模块化架构，允许简单地扩展到更多的元件数量。馈电结构由基片集成波导（SIW）组成，使得制造相对简单且成本低廉。如灵敏度分析所示，频率上变频显著增加了对所用制造技术精度的要求。随后，对该结构进行优化，以尽量减少制造变化的影响。当配备寄生贴片以增加轴比（AR）带宽时，研究了转换后阵列的特性。
