一种具有宽带特性的小型化双频双极化差分天线  

A Miniaturized Dual-Frequency Dual-Polarized Differential Antenna with Broadband Characteristics

作　　者：汪凌泽港 杨雪霞[1] Wangling Zegang

机构地区：[1]上海大学通信与信息工程学院,上海200444

出　　处：《工业控制计算机》2022年第10期159-161,共3页Industrial Control Computer

基　　金：国家自然科学基金(62171270)。

摘　　要：提出了一种具有宽带特性的小型化双频双极化差分天线。天线由双层介质板组成。辐射贴片位于上层介质板上表面,低频谐振由方环贴片提供,高频谐振由方形贴片和寄生条带共同提供,其中方形贴片被方环贴片包围,形成紧凑的嵌套式结构,四个端口提供了两组正交的差分馈电对,使天线具有双极化特性。差分馈电的共模抑制特性可提高端口隔离度并降低交叉极化。In this paper, a miniaturized dual-frequency dual-polarized differential antenna with broadband characteristics is proposed. The antenna consists of a double-layer substrate. The radiation patch is located on the upper surface of the upper substrate. The low frequency resonance is provided by the square ring patch, and the high frequency resonance is provided by the square patch and the parasitic strip together. The square patches are surrounded by square ring patches,forming a compact nested structure. The four ports provide two sets of orthogonal differential feed pairs, enabling the antenna to have dual polarization characteristics. The common-mode rejection of the differential feed improves port isolation and reduces cross-polarization.

关 键 词：双极化 小型化 毫米波 宽带 差分天线 

分 类 号：TN822[电子电信—信息与通信工程]