摘要
采用辐射贴片和馈电贴片位于同一层的容性馈电方式设计了一种毫米波宽带微带天线。该设计采用双层介质展宽频带,通过馈电贴片与辐射贴片间的耦合对辐射贴片进行馈电,从而补偿使用同轴探针引入的附加电感,达到阻抗匹配的目的。设计天线的工作频段为26.1GHz～41.1GHz,相对阻抗带宽(VSWR<2)达到44.64%,同时文中还讨论了馈电贴片的尺寸及其与辐射贴片间距对天线阻抗及驻波比的影响。
A single-layer capacitive feeding mechanism which radiating patch and feeding patch is located on the same layer is used to design a wideband millimeter wave microstrip antenna.The wideband is obtained by applying two-layers substrates.As the purpose of obtaining suited impedance,the radiating patch is fed by coupling of the feeding element which compensates the additional inductance of using probe-fed.The bandwidth(VSWR<2)of the designed antenna is 44.64%(26.1GHz～41.1GHz).The affect of size of feeding patch and the distance between the feeding element and the radiating element to the impedance and Vswr of the antenna is also discussed.
出处
《微波学报》
CSCD
北大核心
2010年第S1期161-164,共4页
Journal of Microwaves
关键词
单层容性馈电
微带天线
毫米波
single-layer capacitive feed
microstrip antenna
millimeter wave
