电子科技大学学报
電子科技大學學報
전자과기대학학보
JOURNAL OF UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
2010年
2期
161-163
,共3页
背靠背结构%宽带%Quasi-Yagi天线%波导过渡%X波段
揹靠揹結構%寬帶%Quasi-Yagi天線%波導過渡%X波段
배고배결구%관대%Quasi-Yagi천선%파도과도%X파단
back-to-back%broad-band%Quasi-Yagi antenna%waveguide transition%X band
提出了一种新颖的波导-微带线的背靠背过渡结构,利用Quasi-Yagi天线结构在波导E面与波导形成电场耦合,通过采用高介电常数基片和增加Yagi天线引向器阶数的方法,改善天线与波导的电场耦合效果,以达到在通频带内平稳过渡,较传统的波导微带过渡结构有着更宽的带宽(将近68%).通过电磁仿真软件CST在整个X波段对其进行了全波分析,得到了较好的S_(21)(S_(21)<0.7 dB).对这种过渡结构进行了容差分析,在10%的误差范围内S_(21)仍能保持较好的一致性和相对低的插入损耗,能满足加工要求.
提齣瞭一種新穎的波導-微帶線的揹靠揹過渡結構,利用Quasi-Yagi天線結構在波導E麵與波導形成電場耦閤,通過採用高介電常數基片和增加Yagi天線引嚮器階數的方法,改善天線與波導的電場耦閤效果,以達到在通頻帶內平穩過渡,較傳統的波導微帶過渡結構有著更寬的帶寬(將近68%).通過電磁倣真軟件CST在整箇X波段對其進行瞭全波分析,得到瞭較好的S_(21)(S_(21)<0.7 dB).對這種過渡結構進行瞭容差分析,在10%的誤差範圍內S_(21)仍能保持較好的一緻性和相對低的插入損耗,能滿足加工要求.
제출료일충신영적파도-미대선적배고배과도결구,이용Quasi-Yagi천선결구재파도E면여파도형성전장우합,통과채용고개전상수기편화증가Yagi천선인향기계수적방법,개선천선여파도적전장우합효과,이체도재통빈대내평은과도,교전통적파도미대과도결구유착경관적대관(장근68%).통과전자방진연건CST재정개X파단대기진행료전파분석,득도료교호적S_(21)(S_(21)<0.7 dB).대저충과도결구진행료용차분석,재10%적오차범위내S_(21)잉능보지교호적일치성화상대저적삽입손모,능만족가공요구.
A novel waveguide-microstrip back to back transition structure by utilizing Quasi-yagi Antenna is introducted in this paper. By adopting high dielectric substrate and adding numbers of the Yagi antenna director, electromagnetic coupling effect between antenna and waveguide is improved to make a smoother transition in passband. Compared with traditional waveguide-microstrip structure, it has a advantagment of wider bandwidth (nearly 68%). Through electromagnetic software CST, a full-wave analysis in the whole X-band bring about better S_(21)(S_(21)<0.7 dB). The a toralance Analysis to this transition structure Shows that S_(21) still keeps fine consistency and comparatively low insert loss within deviation of 10%, which can meet the requirement of production.
