海军航空工程学院学报
海軍航空工程學院學報
해군항공공정학원학보
JOURNAL OF NAVAL AERONAUTICAL ENGINEERING INSTITUTE
2014年
2期
127-130
,共4页
紧耦合天线阵列%超宽带%阻性频率选择表面%偶极子天线%多层结构
緊耦閤天線陣列%超寬帶%阻性頻率選擇錶麵%偶極子天線%多層結構
긴우합천선진렬%초관대%조성빈솔선택표면%우겁자천선%다층결구
tightly coupled array%ultra-wideband%resistive frequency selective surface%dipole antenna%multilayer struc-ture
针对紧耦合天线阵列(Tightly Coupled Array,TCA)安装于飞机、导弹、舰船等平台时接地板严重影响其阻抗带宽的问题,将栅格形阻性频率选择表面与交指型偶极子天线单元相结合,设计了一种新型多层结构的超宽带TCA。采用CST对加载与未加载栅格形阻性频率选择表面时TCA的性能进行了比较分析。结果表明:未加载时,受接地板影响其最佳阻抗带宽(VSWR<2)为4.5∶1(2.1~9.5 GHz);加载后,TCA可克服接地板的影响,其阻抗带宽可达10.4∶1(1.8~18.8 GHz)。
針對緊耦閤天線陣列(Tightly Coupled Array,TCA)安裝于飛機、導彈、艦船等平檯時接地闆嚴重影響其阻抗帶寬的問題,將柵格形阻性頻率選擇錶麵與交指型偶極子天線單元相結閤,設計瞭一種新型多層結構的超寬帶TCA。採用CST對加載與未加載柵格形阻性頻率選擇錶麵時TCA的性能進行瞭比較分析。結果錶明:未加載時,受接地闆影響其最佳阻抗帶寬(VSWR<2)為4.5∶1(2.1~9.5 GHz);加載後,TCA可剋服接地闆的影響,其阻抗帶寬可達10.4∶1(1.8~18.8 GHz)。
침대긴우합천선진렬(Tightly Coupled Array,TCA)안장우비궤、도탄、함선등평태시접지판엄중영향기조항대관적문제,장책격형조성빈솔선택표면여교지형우겁자천선단원상결합,설계료일충신형다층결구적초관대TCA。채용CST대가재여미가재책격형조성빈솔선택표면시TCA적성능진행료비교분석。결과표명:미가재시,수접지판영향기최가조항대관(VSWR<2)위4.5∶1(2.1~9.5 GHz);가재후,TCA가극복접지판적영향,기조항대관가체10.4∶1(1.8~18.8 GHz)。
The impedance bandwidth of tightly coupled array (TCA) is greatly effected by the ground plane when it is in-stalled on the platform of airplanes, missiles and naval ships. In view of this question, a novel ultra-wideband TCA with multilayer structure was designed by grid resistance frequency selective surface and interdigital dipole antenna. The perfor-mance of TCA with and without grid RFSS was compared by CST, the simulated result showed that the effect of ground plane was greatly restricted by loading a grid RFSS, the impedance bandwidth (VSWR<2) of TCA with grid RFSS was 10.4∶1 (1.8~18.8 GHz), while without grid RFSS the best bandwidth was 4.5∶1 (2.1~9.5 GHz).