华中师范大学学报（自然科学版）
華中師範大學學報（自然科學版）
화중사범대학학보（자연과학판）
JOURNAL OF CENTRAL CHINA NORMAL UNIVERSITY(NATURAL SCIENCES)
2009年
4期
569-572
,共4页
普拉提·依布拉音%程用志%杨河林
普拉提·依佈拉音%程用誌%楊河林
보랍제·의포랍음%정용지%양하림
电磁超介质%反射系数%透射系数%吸波材料
電磁超介質%反射繫數%透射繫數%吸波材料
전자초개질%반사계수%투사계수%흡파재료
metamaterial%transmission coefficients%reflectance coefficients%absorber material
提出并设计了一种新型双频带特性的电磁超介质吸波材料.在微波段9-18 GHz利用自由空问法对材料的电磁特性即:反射系数S_(11)和透射系数S_(21)进行测量.透射系数S_(21)在整个频率范围内小于-15 dB;反射系数S_(11)在9.5 GHz和16.5 GHz附近分别为-16 dB和-12 dB.透射系数和两个频率点的反射系数的实验测量值与仿真结果基本吻合,显示了该材料具有非常强的双频带吸波特性.
提齣併設計瞭一種新型雙頻帶特性的電磁超介質吸波材料.在微波段9-18 GHz利用自由空問法對材料的電磁特性即:反射繫數S_(11)和透射繫數S_(21)進行測量.透射繫數S_(21)在整箇頻率範圍內小于-15 dB;反射繫數S_(11)在9.5 GHz和16.5 GHz附近分彆為-16 dB和-12 dB.透射繫數和兩箇頻率點的反射繫數的實驗測量值與倣真結果基本吻閤,顯示瞭該材料具有非常彊的雙頻帶吸波特性.
제출병설계료일충신형쌍빈대특성적전자초개질흡파재료.재미파단9-18 GHz이용자유공문법대재료적전자특성즉:반사계수S_(11)화투사계수S_(21)진행측량.투사계수S_(21)재정개빈솔범위내소우-15 dB;반사계수S_(11)재9.5 GHz화16.5 GHz부근분별위-16 dB화-12 dB.투사계수화량개빈솔점적반사계수적실험측량치여방진결과기본문합,현시료해재료구유비상강적쌍빈대흡파특성.
In this paper, we have proposed and designed a new dual-band metamaterial absorber based on impedance-matched theory. The electromagnetic properties of metamaterial absorber sample were measured using free space method in microwave frequency from 8 to 18 GHz. The mersured resultes indicated that the transmission coefficients (S_(21)) are lower than -10 dB across the entire measurement frequency range, and the reflectance coefficients (S_(11)) are -16 dB and--12 dB around 9. 5 GHz and 16. 5 GHz, respectively. The measurement results of the transmission coefficients and the reflectance coefficients of two frequency pionts are good agreement with simulation results, which indicated that our designed structure have dual-band absorptivity strongly.
