CAJ | 학술논문

卫星导航接收机系统有时需要在较小的区域中放置多个不同频率的圆极化接收天线。通过研究并设计出一种GPS的L1和L2双频点双层叠放圆极化天线，可以在很大程度上节约空间。该天线上下层是两个独立的单馈点天线，可以分别在L1和L2频段独立工作，分别为右旋圆极化和左旋圆极化，可作接收天线和发射天线。天线由厚度为4 mm的复合材料加工而成，调试和组装均比较方便。经过仿真分析优化，设计的天线增益较高，极化特性优良，带宽满足要求，完全适合于卫星导航接收机系统的应用。
위성도항접수궤계통유시수요재교소적구역중방치다개불동빈솔적원겁화접수천선。통과연구병설계출일충GPS적L1화L2쌍빈점쌍층첩방원겁화천선，가이재흔대정도상절약공간。해천선상하층시량개독립적단궤점천선，가이분별재L1화L2빈단독립공작，분별위우선원겁화화좌선원겁화，가작접수천선화발사천선。천선유후도위4 mm적복합재료가공이성，조시화조장균비교방편。경과방진분석우화，설계적천선증익교고，겁화특성우량，대관만족요구，완전괄합우위성도항접수궤계통적응용。
Several circularly polarized receiving antennas with different frequency in small space are placed on satellite naviga?tion receiver system. The double?deck circularly polarized antenna,which receives signals from the GPS with L1 frequency point and L2 frequency point is studied and designed to save space. The double?deck antenna consists of two separate single feed point antenna,which is working at L1 frequency range and L2 frequency range independently,right?hand circular polarization and left?hand circular polarization of the antenna is working as receiving antenna and sending antenna. It′s easy to debug and in?stall since the antenna is processed with 4 mm thickness composite material. The simulation analysis and optimization proved that the designed antenna with high gain,excellent polarization and qualifies bandwidth requirement,and it is suitable for satel?lite navigation receiver system application.