CAJ | 학술논문

通过在天线上开设不同形状和尺寸的槽,设计和制作了一种新型的采用微带馈电且具有双阻带特性的平面超宽带天线。通过HFSS对天线仿真并分析,总结出了槽结构参数对天线阻带特性的影响规律。仿真和实测结果表明,除阻带外,天线在3.015 GHz~13.27 GHz频带上的VSWR小于2,相对带宽达126%,在3.25 GHz~3.6 GHz、5.15 GHz~5.825 GHz具有良好的阻带特性,较好地避免了系统与Wimax及WLAN之间的干扰。该设计天线在工作频段内具有很好的辐射方向性和增益,满足超宽带通信的需求。
통과재천선상개설불동형상화척촌적조,설계화제작료일충신형적채용미대궤전차구유쌍조대특성적평면초관대천선。통과HFSS대천선방진병분석,총결출료조결구삼수대천선조대특성적영향규률。방진화실측결과표명,제조대외,천선재3.015 GHz~13.27 GHz빈대상적VSWR소우2,상대대관체126%,재3.25 GHz~3.6 GHz、5.15 GHz~5.825 GHz구유량호적조대특성,교호지피면료계통여Wimax급WLAN지간적간우。해설계천선재공작빈단내구유흔호적복사방향성화증익,만족초관대통신적수구。
A novel microstrip-feed dual band-rejection ultra-wideband( UWB) antenna is achieved by cutting slots of different shape and size on it. The relationship between structural parameters of slot and band-rejection characteristic is discussed though simulation on HFSS. The simulated and measured results have shown that the antenna has wideband characteristic from 3. 015 GHz to 13. 27 GHz, means a relative bandwidth of 126% and good band-rejection characteristic 3. 25 GHz from 3. 6 GHz and from 5. 15 GHz to 5. 825 GHz,which can avoid interference between the UWB system and WiMax and WLAN. Moreover, the antenna has good omnidirectional radiation characteristic on non band-rejection band and it can be considered as a good candidate for UWB communications.