环境技术
環境技術
배경기술
ENVIRONMENTAL TECHNOLOGY
2014年
z1期
71-74
,共4页
郑晓静%唐章宏%施楣梧%李永利%王群
鄭曉靜%唐章宏%施楣梧%李永利%王群
정효정%당장굉%시미오%리영리%왕군
频率选择表面%复合结构%半解析半数值%反射系数
頻率選擇錶麵%複閤結構%半解析半數值%反射繫數
빈솔선택표면%복합결구%반해석반수치%반사계수
frequency selective surface%composite structure%semi-analytical and semi-numerical%reflection coefficient
文中采用一种快速求解方法--半解析半数值法计算多层频率选择表面(Frequency Selective Surface,简称FSS)复合结构的反射系数,然后结合具体两层复合结构的实例通过测试验证了半解析半数值法的正确性,并基于复合结构吸波材料吸波频带窄的缺点,在此基础上,设计出一种新的圆形FSS复合结构吸波材料。计算和测试结果都表明,这种新的复合结构在较宽带宽内具有低反射系数。
文中採用一種快速求解方法--半解析半數值法計算多層頻率選擇錶麵(Frequency Selective Surface,簡稱FSS)複閤結構的反射繫數,然後結閤具體兩層複閤結構的實例通過測試驗證瞭半解析半數值法的正確性,併基于複閤結構吸波材料吸波頻帶窄的缺點,在此基礎上,設計齣一種新的圓形FSS複閤結構吸波材料。計算和測試結果都錶明,這種新的複閤結構在較寬帶寬內具有低反射繫數。
문중채용일충쾌속구해방법--반해석반수치법계산다층빈솔선택표면(Frequency Selective Surface,간칭FSS)복합결구적반사계수,연후결합구체량층복합결구적실례통과측시험증료반해석반수치법적정학성,병기우복합결구흡파재료흡파빈대착적결점,재차기출상,설계출일충신적원형FSS복합결구흡파재료。계산화측시결과도표명,저충신적복합결구재교관대관내구유저반사계수。
In this paper, a fast semi-analytical and semi-numerical method was adopted to calculate the reflection coefficient of multilayer FSS-embedded composite structure. For a two-layer composite structure absorbing material, the reflection coefficient was calculated and measured, and the measuring result verified the correctness of fast method. Since the two-layer composite structure absorbing material has narrow absorbing bandwidth, a new FSS-embedded composite structure absorbing material based on the two layer composite structure was designed. The reflection coefficient of new structure was calculated and measured, and both results show that new structure has low reflection coefficient in wide bandwidth.