Sub-THz Circularly Polarized Horn Antenna Using Wire Electrical Discharge Machining for 6G Wireless Communications
Sub-THz Circularly Polarized Horn Antenna Using Wire Electrical Discharge Machining for 6G Wireless Communications
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DOI：
10.1109/access.2020.3003853
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发表时间：
2020-01-01
期刊：
影响因子：
3.9
通讯作者：
Vettikalladi, Hamsakutty
中科院分区：
文献类型：
--
作者：
Aqlan, Basem;Himdi, Mohamed;Vettikalladi, Hamsakutty
提出了一种新型紧凑型高效圆极化锥形喇叭天线，采用线放电加工 (EDM) 技术，工作频率为 300 GHz，用于 6G 无线通信。所提出的天线结构由三个主要部分组成；波导馈源、圆偏振片盘和锥形喇叭。波导馈源是标准 WR-03 矩形波导，为整个结构提供馈源。圆偏光片盘由长度不等且相互垂直的交叉槽组成。通过调整两个缝隙的长度，在天线中激发两个正交模式以产生圆极化。圆锥形喇叭安装在圆偏振片盘上。所提出的天线是使用 CST Microwave Studio 进行设计和优化的，并通过 WM-860 频段上廉价的直接线切割 EDM 技术进行了实验验证。所制作的圆极化喇叭天线在 270 GHz 至 330 GHz 范围内实现了 20% 的宽阻抗带宽，并且反射系数
A novel compact high-efficient circularly polarized conical horn antenna is realized with Wire Electrical Discharge Machining (EDM) technique operating at 300 GHz for 6G wireless communications is presented. The proposed antenna structure consists of three main components; a waveguide feed, a circular polarizer disk, and a conical horn. The waveguide feed is a standard WR-03 rectangular waveguide which feeds the whole structure. The circular polarizer disk is comprised of a crossed slot with unequal lengths which are perpendicular to each other. By adjusting the lengths of both slots, two orthogonal modes are excited in the antenna to produce circular polarization. The conical horn is mounted on the circular polarizer disk. The proposed antenna was designed and optimized using CST Microwave Studio and is validated experimentally by an inexpensive direct Wire-cutting EDM technique over the WM-860 frequency band. The fabricated circularly polarized horn antenna achieved a wide impedance bandwidth of 20 % from 270 GHz to 330 GHz with a reflection coefficient