CAJ | 학술논문

　　曲面频率选择表面（FSS）部件处于天线的非均匀照射下，容易造成传输特性对角度响应的不稳定。本文通过设计了一种柱面FSS结构，并利用时域有限差分法，研究了分别以圆环型、十字型和Y型单元构成柱面FSS结构下，曲率对其传射特性的影响。结果显示，随着曲率半径的减小，柱面FSS频点向低频漂移，透过率降低，其中以Y型单元的性质相对稳定。
　　곡면빈솔선택표면（FSS）부건처우천선적비균균조사하，용역조성전수특성대각도향응적불은정。본문통과설계료일충주면FSS결구，병이용시역유한차분법，연구료분별이원배형、십자형화Y형단원구성주면FSS결구하，곡솔대기전사특성적영향。결과현시，수착곡솔반경적감소，주면FSS빈점향저빈표이，투과솔강저，기중이Y형단원적성질상대은정。
When Frequency selective surface (FSS) is exposed to the uneven irradiation of antenna, the transmission characteristics is easy to be instable. In this paper, a kind of cylinder FSS structure is designed and the influence of curvature on transmission characterisitcs has been researched under the cylinder FSS strucutres composed of ring-type, cross-type and Y-type unit respectively by means of finite difference time domain (FDTD) . The results show that with the decrease of radius of curvature,the frequency point of cylinder FSS drifts to the low frequency point and the transmittance decreases;furthermore the Y-type unit shows the relatively stable characteristics.