空间电子技术2025，Vol.22Issue(1)：74-80,7.DOI:10.3969/j.issn.1674-7135.2025.01.008
面向5G通信和NB-IoT的电力物联网频率可重构天线
Frequency reconfigurable antennas for power internet of things targeting 5G communication and NB-IoT
摘要
Abstract
This paper presents a frequency reconfigurable antenna for the Power Internet of Things targeting 5th generation mobile communication technology(5G)communication and narrow band internet of things(NB-IoT).The antenna comprises two"L"-shaped radiating branches,a ground plane with a defective structure,and a microstrip line for feeding,with PIN diodes connecting the radiating branches and the microstrip line.By adjusting the PIN diodes,the surface current distribution of the antenna can be modified,achieving excellent reconfigurability.Furthermore,by altering the defective structure,the antenna can achieve a wider bandwidth by increasing the current path.The results demonstrate that the antenna has a size of 0.43λ0×0.49λ0,and can operate in the NB-IoT band(1.85 GHz～1.90 GHz)and 5G communication band(4.4 GHz～5.0 GHz),with maximum gain of 4.5 dBi and 5.9 dBi,respectively.In practical applications,this antenna can be utilized in cognitive radio technology to detect idle spectrum in the 5G communication band and promptly switch to the NB-IoT operating state on idle frequencies.This allows for better meeting the requirements of deep grid monitoring and intelligent operations such as power generation and transmission.关键词
频率可重构天线/电力物联网/窄带物联网/5G通信频段/PIN二极管Key words
frequency reconfigurable antenna/electric internet of things/NB-IoT/5G communication frequency band/PIN diode分类
航空航天引用本文复制引用
谢舒,卞立安,郭志清,王琰,张琦..面向5G通信和NB-IoT的电力物联网频率可重构天线[J].空间电子技术,2025,22(1):74-80,7.基金项目
长沙市自然科学基金项目(编号:KQ2402029) （编号:KQ2402029）
