太赫兹科学与电子信息学报2026，Vol.24Issue(6)：657-661,5.DOI:10.11805/TKYDA2025272
一种结合分形结构的极宽带单极子天线
Super-wideband monopole antenna with fractal structure
摘要
Abstract
To meet the integration demands of modern electronic information systems for diverse radio functions such as detection,communication,navigation and jamming,this paper presents the design of an Super-Wideband(SWB)monopole antenna.Based on an annular monopole structure,triangular elements are loaded and subjected to multiple iterations and slotting to extend the antenna's low-frequency operating bandwidth.To mitigate the impedance matching degradation at certain frequency points after iteration,a pair of inverted L-shaped parasitic elements are loaded on both sides of the microstrip line,while rectangular slots are introduced at the end of the feeding structure.Simulation results demonstrate that the antenna achieves an operating bandwidth of 0.8～30 GHz,corresponding to a fractional bandwidth of approximately 190%.The antenna attains a peak gain of 8.5 dBi,with the gain remaining above 0 dBi across the entire frequency band.This design significantly reduces system complexity in multi-antenna configurations while achieving multifunctional co-use within a single antenna system.关键词
极宽带天线/分形结构/多功能天线/单极子天线/寄生单元Key words
Super-Wideband(SWB)antenna/fractal structure/multifunctional antenna/monopole antenna/parasitic element分类
信息技术与安全科学引用本文复制引用
郭雪豆,李佳铭,陈晓添,李高升..一种结合分形结构的极宽带单极子天线[J].太赫兹科学与电子信息学报,2026,24(6):657-661,5.基金项目
国家自然科学基金青年基金资助项目(62301218) （62301218）
