CAJ | 학술논문

该文设计了一种新型宽带圆极化微带天线。该天线采用微带线进行馈电，在地板圆形开槽内加载一对矩形和椭圆组成的径向微扰枝节来获得圆极化，并切去一对圆弧形槽以降低圆极化的中心频率。借助仿真软件HFSS对天线结构参数进行优化设计，并制作实物。仿真与测试结果表明：回波损耗小于-10dB的阻抗带宽为12．5％，且在此频段内轴比均小于2dB。
해문설계료일충신형관대원겁화미대천선。해천선채용미대선진행궤전，재지판원형개조내가재일대구형화타원조성적경향미우지절래획득원겁화，병절거일대원호형조이강저원겁화적중심빈솔。차조방진연건HFSS대천선결구삼수진행우화설계，병제작실물。방진여측시결과표명：회파손모소우-10dB적조항대관위12．5％，차재차빈단내축비균소우2dB。
A new wideband circularly polarized microstrip antenna fed by microstrip line is designed in this paper.The proposed antenna realizes circularly polarized by loading a pair of radial perturbation structures at the circular-slot boundary on the ground , and the perturbation structures were composed of rectangle and el-lipse .It also cuts off a pair of circular grooves to reduce the center frequency of the circular polarization .The parameters of the antenna are optimized by the simulated software HFSS , and an antenna is fabricated based on the simulation .The simulation and measured results show that the impedance bandwidth with S 11<-10 dB is 12.5%, and the axial ratio is less than 2dB in the band .