太赫兹科学与电子信息学报2026，Vol.24Issue(1)：55-59,5.DOI:10.11805/TKYDA2024539
用于紧凑型宽带MIMO微带天线的解耦技术
Decoupling technology for compact wideband MIMO microstrip antenna
摘要
Abstract
To address the issue of narrow bandwidth in existing Multiple-Input Multiple-Output(MIMO)microstrip antennas,a compact broadband high-isolation MIMO microstrip antenna and array design is proposed.By introducing cross-type capacitive fences,open slots,and shorting vias,the isolation between ports is gradually enhanced.To validate this concept,a 1×2 microstrip antenna and a 2×2 array were fabricated and measured.The measured impedance bandwidth of the 2×2 array is 44.9%,with an isolation better than 21.8 dB,showing good consistency between the measured and simulated results.Based on the 2×2 array,the applicability of the proposed decoupling structure in large-scale arrays was further verified.Simulation results indicate that the impedance bandwidth of a 2×6 array is 43.5%,with an isolation of at least 20 dB within the operating bandwidth.Therefore,the proposed decoupling solution has broad application prospects in broadband high-isolation MIMO applications and antenna arrays.关键词
高隔离度/多输入多输出(MIMO)/紧凑型/微带天线及阵列设计Key words
high isolation/Multiple-Input Multiple-Output(MIMO)/compact/microstrip antenna and array design分类
信息技术与安全科学引用本文复制引用
宛郑圆,何翼景,孙厚军..用于紧凑型宽带MIMO微带天线的解耦技术[J].太赫兹科学与电子信息学报,2026,24(1):55-59,5.基金项目
国家自然科学基金资助项目(62201038) （62201038）
北京理工大学青年基金资助项目(XSQD-202206003) （XSQD-202206003）
