系统工程与电子技术
繫統工程與電子技術
계통공정여전자기술
SYSTEMS ENGINEERING AND ELECTRONICS
2015年
1期
1-5
,共5页
双圆极化%极化器%轴比%隔离度
雙圓極化%極化器%軸比%隔離度
쌍원겁화%겁화기%축비%격리도
dual-circularly-polarization%polarizer%axial ratio%isolation
传统的双极化波导缝隙天线阵每种极化方式交叉极化较差，极化端口隔离度不高，尤其实现共口径辐射难度较大。介绍了一种 K 波段双圆极化波导阵列天线设计方法，重点讨论了高效率共口径双极化辐射单元、宽带圆极化器、低损耗波导馈电网络。利用仿真软件进行了优化仿真分析，在此基础上研制了样件，对其电性能进行了测量。测试结果表明，此双圆极化波导阵列天线具有效率高、轴比带宽宽、隔离度高等特点。
傳統的雙極化波導縫隙天線陣每種極化方式交扠極化較差，極化耑口隔離度不高，尤其實現共口徑輻射難度較大。介紹瞭一種 K 波段雙圓極化波導陣列天線設計方法，重點討論瞭高效率共口徑雙極化輻射單元、寬帶圓極化器、低損耗波導饋電網絡。利用倣真軟件進行瞭優化倣真分析，在此基礎上研製瞭樣件，對其電性能進行瞭測量。測試結果錶明，此雙圓極化波導陣列天線具有效率高、軸比帶寬寬、隔離度高等特點。
전통적쌍겁화파도봉극천선진매충겁화방식교차겁화교차，겁화단구격리도불고，우기실현공구경복사난도교대。개소료일충 K 파단쌍원겁화파도진렬천선설계방법，중점토론료고효솔공구경쌍겁화복사단원、관대원겁화기、저손모파도궤전망락。이용방진연건진행료우화방진분석，재차기출상연제료양건，대기전성능진행료측량。측시결과표명，차쌍원겁화파도진렬천선구유효솔고、축비대관관、격리도고등특점。
The cross-polarizations and the polarization port isolation performance of conventional dual-polariza-tion waveguide slotted array antennas are poor,especially difficult to realize co-aperture dual-circularly-polariza-tion radiation.A novel dual-circularly-polarization waveguide array antenna at K-band is studied.The high-effi-ciency dual-polarized co-aperture radiation element,wide-band polarizer,low loss feed network are discussed, simulated and optimized by software.A prototype has been made and tested.The measured results show that waveguide array antennas proposed have the characteristics of high-efficiency,wide-band of axial ratio,and high-isolation.
