摘要
利用缝隙对天线带宽的影响设计了四种宽带微带天线。主要研究了缝隙的形状和大小以及与馈电的距离对天线带宽的影响。首先,宽缝机构可以较大的展宽天线的频带,如果同时配合在贴片上适当的开缝,带宽将进一步展宽;其次,相同缝隙结构的嵌套可使天线同时谐振在很多的频率,从而增加带宽。设计表明这几种微带天线都具有宽带特性,尤其是前两种天线具有超宽带(UWB)的特性,后两种天线的带宽也达到了48%以上。
This paper shows the design of four kinds of brcadbannd microstrip-fed antennas based on the slot effect. It mainly studies the effect of the shape, size, and the space between feedline of the slot to the antennas. Firstly, the broad slot can get a wide bandwidth. If there is a proper slot on the patch, the bandwidth will even be wider; secondly, the nesting of several slots with the same structure can make the antenna resonant at different frequaneies, so that the bandwidth will be wide. The results show these antennas all have the broadband characteristic, especially the first two antennas have the UWB characteristics and the bandwidth of the last two antennas also larger than 48 %.
出处
《山西电子技术》
2008年第4期47-49,共3页
Shanxi Electronic Technology
关键词
宽带
宽缝
微带天线
超宽带
broadband
broad slot
microstrip-fed antenna
UWB
作者简介
谭馨 女 26岁 硕士研究生
