Low-Profile Wideband Millimeter-Wave Circularly Polarized Antenna With Hexagonal Parasitic Patches
Low-Profile Wideband Millimeter-Wave Circularly Polarized Antenna With Hexagonal Parasitic Patches
复制标题
具有六边形寄生贴片的薄型宽带毫米波圆极化天线
DOI：
10.1109/lawp.2021.3092139
复制
发表时间：
2021-09
影响因子：
4.2
通讯作者：
Xianliang Wu
中科院分区：
文献类型：
--
作者：
Chuanming Zhu;Guanghui Xu;Dawei Ding;Jie Wu;Wei Wang;Zhi-Xiang Huang;Xianliang Wu
这封信中介绍了一种带有六边形寄生贴片的薄型宽带圆极化 (CP) 毫米波 (mm-Wave) L 形偶极子天线。两种类型的六边形寄生贴片放置在旋转对称的 L 形偶极子周围，以增强阻抗和轴比 (AR) 带宽。基于该天线元件，设计了采用顺序旋转馈电技术的基板集成波导馈电2×2子阵列，以进一步提高AR带宽。最后，设计了4×4 CP阵列以进一步增强增益。测量结果表明，所提出的阵列可以实现 27.7% 的阻抗带宽、28.5% 的 AR 带宽和 17.85 dBic 的峰值增益，同时保持较低的外形。因此，该设计方案将适用于5G毫米波通信和卫星通信系统。
A low-profile wideband circularly polarized (CP) millimeter-wave (mm-Wave) L-shaped dipole antenna with hexagonal parasitic patches is presented in this letter. Two types of hexagonal parasitic patches are placed round the rotationally symmetrical L-shaped dipole to enhance the impedance and axial ratio (AR) bandwidth. Based on this antenna element, a substrate integrated waveguide-fed 2 × 2 subarray with sequential rotate feeding technique is designed to further improve AR bandwidth. Finally, a 4 × 4 CP array is designed to further enhance the gain. The measurement shows the proposed array can achieve the impedance bandwidth of 27.7%, the AR bandwidth of 28.5%, and the peak gain of 17.85 dBic while maintaining a lower profile. Therefore, the design scheme will be suitable for 5G mm-Wave communications and satellite communication systems.