基于液态水的频率可重构天线  

Frequency Reconfigurable Antenna Based on Liquid Water

作　　者：郭芝芳 储龙威 GUO Zhifang;CHU Longwei(Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,宁波315211

出　　处：《无线通信技术》2024年第1期11-15,共5页Wireless Communication Technology

基　　金：国家自然科学基金面上项目(61971250)。

摘　　要：本文提出了一种基于液态水实现频率可重构的天线。该天线采用微带线馈电,由金属臂、开关水槽和水槽阵列构成,通过控制加水水槽的数量和位置来改变天线结构,同时改变介质介电常数实现频率可重构特性。利用Ansoft HFSS软件进行建模仿真,结果表明当水槽组阵中不填充液态水时,天线工作在4.4 GHz。当往开关水槽中填充液态水、结合水槽组阵中不同加水方式能实现2.92 GHz-5.48 GHz的较宽范围的频率调谐。该天线结构简单、成本低,能被广泛应用于WIMAX无线通信。A frequency reconfigurable antenna based on liquid water is proposed in this paper.The antenna is fed by microstrip lines and consists of a metal arm,a switch water tank,and a water tank array.The antenna structure is changed by controlling the number and position of water tanks,while changing the dielectric constant of the medium to achieve frequency reconfigurable characteristics.Using Ansoft HFSS software for modeling and simulation,the results show that when the water tank array is not filled with liquid water,the antenna operates at 4.4 GHz.When filling the switch water tank with liquid water and combining different water addition methods in the water tank array,a wide frequency tuning range of 2.92 GHz-5.48 GHz can be achieved.The antenna has a simple structure and low cost,and can be widely used in WIMAX wireless communication.

关 键 词：频率可重构 WIMAX 水天线 宽带 

分 类 号：TN722[电子电信—电路与系统]