基于新型超材料单元的双阻带AFSS设计
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摘要
设计了一款新型嵌套三角形环超材料单元,利用NRW近似法验证了该单元在S、C波段内的超材料性能。通过对新型超材料单元结构进行排列得到了嵌套三角形环频率选择表面(FSS),其能够在C波段内产生单阻带,谐振频率为4.16 GHz,-20 dB阻带的频率范围为4.13～4.19 GHz,并具有最大为70°的入射角稳定性和极化稳定性。在FSS单元间加载变容二极管构成了具有双阻带特性的有源频率选择表面(AFSS),改变变容二极管的电容值,该AFSS的高频和低频阻带的谐振频率和阻带带宽都发生了变化,达到了电磁特性的动态调节,具有良好的适应性。
A novel nested triangular ring metamaterial element is designed. The NRW approximation method is used to verify the performance of the metamaterial element in the S and C bands. A nested triangular ring frequency selective surface(FSS) is obtained by arranging the metamaterial element structure,which can generate a single stopband in the C-band with a resonance frequency of 4.16 GHz,and the frequency range of the-20 dB stopband is 4.13-4.19 GHz,and the FSS has a maximum of 70° incident angle stability and polarization stability. An active frequency selective surface( AFSS) with dual stopband characteristics is formed by loading varactor diodes between FSS elements,changing the capacitance of the varactor diodes,the resonance frequency and stopband bandwidth of the high frequency and low frequency stopbands of the AFSS are changed,achieving dynamic adjustment of the electromagnetic characteristics and having good adaptability.
A novel nested triangular ring metamaterial element is designed. The NRW approximation method is used to verify the performance of the metamaterial element in the S and C bands. A nested triangular ring frequency selective surface(FSS) is obtained by arranging the metamaterial element structure,which can generate a single stopband in the C-band with a resonance frequency of 4.16 GHz,and the frequency range of the-20 dB stopband is 4.13-4.19 GHz,and the FSS has a maximum of 70° incident angle stability and polarization stability. An active frequency selective surface( AFSS) with dual stopband characteristics is formed by loading varactor diodes between FSS elements,changing the capacitance of the varactor diodes,the resonance frequency and stopband bandwidth of the high frequency and low frequency stopbands of the AFSS are changed,achieving dynamic adjustment of the electromagnetic characteristics and having good adaptability.
引文
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[6]贾宏燕,李田泽,杨淑连,等.多功能有源频率选择表面[J].雷达科学与技术,2016,14(5):537-540Jia H Y,Li T Z,Yang S L,et al. Active frequency selective surface with multifunction[J]. Radar Science and Technology,2016,14(5):537-540
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[9] lslam S S,Faruque M R I,Islam M T. Design of a new ENG metamaterial for S-band microwave applications[J].Journal of Electrical&Electronics Engineering,2014,7(2):13-16
[10]Sabah C. Tunable metamaterial design composed of triangular split ring resonator and wire strip for S-and C-microwave bands[J]. Progress in Electromagnetics Research B,2010,22(22):341-357
[11] Ziolkowski R W. Design,fabrication,and testing of double negative metamaterials[J]. IEEE Transactions on Antennas&Propagation,2003,51(7):1516-1529
[2]杜云峰,姜交来,廖俊生.超材料的应用及制备技术研究进展[J].材料导报,2016,30(9):115-121Du Y F,Jiang J L,Liao J S. Review on fabrication and application of metamaterial[J]. Materials Review,2016,30(9):115-121
[3]宁仁霞,焦铮,许媛,等.双曲超材料的研究进展[J].微波学报,2016,32(S2):525-528Ning R X,Jiao Z,Xu Y,et al. Progress of hyperbolic metamaterials[J]. Journal of Microwaves, 2016, 32(S2):525-528
[4]陈谦,江建军.有源频率选择表面研究进展及应用前景[J].电子元件与材料,2012(8):80-86Chen Q,Jiang J J. Research progress and application prospects of active frequency selective surfaces[J]. Electronic Components&Materials,2012(8):80-86
[5]姜晓宇,阙肖峰,聂在平,等.一种宽带内可调的开关型有源频率选择表面[J].微波学报,2016,32(S2):372-375Jiang X Y,Que X F,Nie Z P,et al. A kind of switchtype and tunable frequency selective surface in wide band[J]. Journal of Microwaves,2016,32(S2):372-375
[6]贾宏燕,李田泽,杨淑连,等.多功能有源频率选择表面[J].雷达科学与技术,2016,14(5):537-540Jia H Y,Li T Z,Yang S L,et al. Active frequency selective surface with multifunction[J]. Radar Science and Technology,2016,14(5):537-540
[7] Benosman H,Hacene H B. Design and simulation of double“S”shaped metamaterial[J]. International Journal of Computer Science Issues,2012,9(2):534-537
[8] Mallik A,Kundu S,Goni M O. Design of a novel two rectangular U-shaped double negative metamaterial[A].International Conference on Informatics[C],2013. 1-6
[9] lslam S S,Faruque M R I,Islam M T. Design of a new ENG metamaterial for S-band microwave applications[J].Journal of Electrical&Electronics Engineering,2014,7(2):13-16
[10]Sabah C. Tunable metamaterial design composed of triangular split ring resonator and wire strip for S-and C-microwave bands[J]. Progress in Electromagnetics Research B,2010,22(22):341-357
[11] Ziolkowski R W. Design,fabrication,and testing of double negative metamaterials[J]. IEEE Transactions on Antennas&Propagation,2003,51(7):1516-1529