CAJ | 학술논문

根据短距离无线电通信系统对超宽带天线的要求，提出了一种具有带阻特性的紧凑的超宽带天线。通过在辐射贴片上开两个L型槽来实现天线的带阻特性，仿真和实测结果表明，所设计的天线具有30 mm ×30 mm尺寸大小，可实现天线频带宽度（ S11≤-10 dB）3．512 GHz，相对带宽达110％，并实现了5．26．2 GHz的带阻特性，实验结果表明，该设计天线在工作频带范围内具有全向性，适用于超宽带系统的应用，而且最高增益达到了7．58 dB。
근거단거리무선전통신계통대초관대천선적요구，제출료일충구유대조특성적긴주적초관대천선。통과재복사첩편상개량개L형조래실현천선적대조특성，방진화실측결과표명，소설계적천선구유30 mm ×30 mm척촌대소，가실현천선빈대관도（ S11≤-10 dB）3．512 GHz，상대대관체110％，병실현료5．26．2 GHz적대조특성，실험결과표명，해설계천선재공작빈대범위내구유전향성，괄용우초관대계통적응용，이차최고증익체도료7．58 dB。
A compact ultra-wideband(UWB) antenna with band-notched characteristics is designed according to the requirement of short distance communication for UWB antenna .By inserting two L-shaped slots into the patch to obtain a band-notched function , simulated and experimental results show that the proposed antenna , with compact size of 30 ×30mm2 , has impedance bandwidth of 3.5 GHz up to 12 GHz that means a relative bandwidth of 110%with a notched band from 5.2 to 6.2 GHz.Measured results confirm that the designed antenna demonstrates omnidirectional radiation patterns across almost the whole operating bandwidth , which is useful for UWB application , and the proposed antenna peak gain is 7.58 dB.