曲线三极子频率选择表面单元
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摘要
设计了一种新型小型化宽带频率选择表面单元——曲线三极子单元,该单元外形轮廓为圆弧组成的曲线,相对于谐振波长尺寸小,可以三角形方式紧密排列,单元间距小,可调参数多,可设计性好,能够用于带阻型、带通型不同频段、不同带宽的频选表面。基于该单元给出了一个三屏频选的设计实例,实例表明,采用曲线三极子单元的频选表面带宽宽,角度稳定性好,透波率高,有效抑制栅瓣和二次谐振,改进了带外抑制性能。
This paper presents an excellent compact wideband frequency selective surface element-curve-tripole element. The contour of this element is a curve consisting of arcs,which is small in terms of wavelength. It can be arranged tightly in a triangular grid so that it has smaller inter-element spacing. And it has good design ability because of its more adjustable structural parameters. Curve-tripole element can be designed both for band-pass and band-stop frequency selective surface with different frequencies and different bandwidth. The paper gives a design example of tri-screen frequency selective surface with the curve-tripole element. The simulated results show that,the FSS with curve-tripole element has excellent band filter characteristic with a flat top and sharp fall off; works well both for wide-band and wide-angle with high transmission rate; grating lobes and the second harmonic are suppressed effectively; the performance outside pass-band is greatly improved.
This paper presents an excellent compact wideband frequency selective surface element-curve-tripole element. The contour of this element is a curve consisting of arcs,which is small in terms of wavelength. It can be arranged tightly in a triangular grid so that it has smaller inter-element spacing. And it has good design ability because of its more adjustable structural parameters. Curve-tripole element can be designed both for band-pass and band-stop frequency selective surface with different frequencies and different bandwidth. The paper gives a design example of tri-screen frequency selective surface with the curve-tripole element. The simulated results show that,the FSS with curve-tripole element has excellent band filter characteristic with a flat top and sharp fall off; works well both for wide-band and wide-angle with high transmission rate; grating lobes and the second harmonic are suppressed effectively; the performance outside pass-band is greatly improved.
引文
[1]张强.天线罩理论与设计方法[M].北京:国防工业出版社,2014.225-326Zhang Q.Radome theory and design methods[M].Beijing:National Defence Industry Press,2014.225-326
[2]鲁戈舞,张剑,杨洁颖.频率选择表面天线罩研究现状与发展趋势[J].物理学报,2013,62(19):1-10Lu G W,Zhang J,Yang J Y.Status and development of frequency selective surface radome[J].Acta Physica Sinica,2013,62(19):1-10
[3]Munk B A.Frequency selective surface:theory and design[M].New York:Wiley,2000
[4]贾宏燕,高劲松,冯晓国,等.一种新型组合单元频率选择表面[J].光学学报,2008,28(8):1596-1600Jia H Y,Gao J S,Feng X G,et al.Novel composite element frequency selective surface[J].Acta Optica Sinica,2008,28(8):1596-1600
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[6]吴瑞,张厚,许志永,等.基于Y型频率选择表面的小型化设计[J].微波学报,2015,31(2):55-58,62Wu R,Zhang H,Xu Z Y,et al.Design of a miniaturized frequency selective surface based on Y element[J].Journal of Microwaves,2015,31(2):55-58,62
[7]杨国辉,李忻媛,吴群.具有高角度和极化稳定度的频率选择表面[J].微波学报,2010,26(S1):517-520Yang G H,Li X Y,Wu Q.Frequency selective surfaces with high angle stability and polarization stability[J].Journal of Microwaves 2010,26(S1):517-520
[8]杨国辉,张桐,李宛露,等.一种具有高稳定度的新型小型化频选选择表面[J].科学技术与工程,2010,10(36):8990-8994Yang G H,Zhang T,Li W L,et al.A novel miniaturized frequency selective surface of high stability[J].Sciense Technology and Engineering,2010,10(36):8990-8994
[9]陈亮,陈夏萌,陈强,等.基于非谐振单元的小型化带通频率选择表面设计[J].中国舰船研究,2015,10(2):84-88Chen L,Chen X M,Chen Q,et al.Design of bandpass miniaturized frequency selective surfaces composed of non-resonant elements[J].Chinese Journal of Ship Research,2015,10(2):84-88
[10]李小秋,高劲松.Y环单元FSS结构参数对频率特性的影响[J].光学精密工程,2006,14(6):1070-1076Li X Q,Gao J S.Effects of Y loop element FSS structure parameter on frequency respons[J].Optics and Precision Engineering,2006,14(6):1070-1076
[11]王立超,张强,冯晓磊.宽带多屏频率选择表面的设计研究[J].现代雷达,2012,34(8):63-66Wang L C,Zhang Q,Feng X L.Research on wide-band multi-screen frequency selective surface[J].Modern Radar,2012,34(8):63-66
[2]鲁戈舞,张剑,杨洁颖.频率选择表面天线罩研究现状与发展趋势[J].物理学报,2013,62(19):1-10Lu G W,Zhang J,Yang J Y.Status and development of frequency selective surface radome[J].Acta Physica Sinica,2013,62(19):1-10
[3]Munk B A.Frequency selective surface:theory and design[M].New York:Wiley,2000
[4]贾宏燕,高劲松,冯晓国,等.一种新型组合单元频率选择表面[J].光学学报,2008,28(8):1596-1600Jia H Y,Gao J S,Feng X G,et al.Novel composite element frequency selective surface[J].Acta Optica Sinica,2008,28(8):1596-1600
[5]经纬,魏兴昌,戴高乐.一种新型小尺寸宽带的频率选择表面设计[J].微波学报,2012,28(S2):474-477Jing W,Wei X C,Dai G L.A novel frequency selective surface with smaller size and wide band[J].Journal of Microwaves,2012,28(S2):474-477
[6]吴瑞,张厚,许志永,等.基于Y型频率选择表面的小型化设计[J].微波学报,2015,31(2):55-58,62Wu R,Zhang H,Xu Z Y,et al.Design of a miniaturized frequency selective surface based on Y element[J].Journal of Microwaves,2015,31(2):55-58,62
[7]杨国辉,李忻媛,吴群.具有高角度和极化稳定度的频率选择表面[J].微波学报,2010,26(S1):517-520Yang G H,Li X Y,Wu Q.Frequency selective surfaces with high angle stability and polarization stability[J].Journal of Microwaves 2010,26(S1):517-520
[8]杨国辉,张桐,李宛露,等.一种具有高稳定度的新型小型化频选选择表面[J].科学技术与工程,2010,10(36):8990-8994Yang G H,Zhang T,Li W L,et al.A novel miniaturized frequency selective surface of high stability[J].Sciense Technology and Engineering,2010,10(36):8990-8994
[9]陈亮,陈夏萌,陈强,等.基于非谐振单元的小型化带通频率选择表面设计[J].中国舰船研究,2015,10(2):84-88Chen L,Chen X M,Chen Q,et al.Design of bandpass miniaturized frequency selective surfaces composed of non-resonant elements[J].Chinese Journal of Ship Research,2015,10(2):84-88
[10]李小秋,高劲松.Y环单元FSS结构参数对频率特性的影响[J].光学精密工程,2006,14(6):1070-1076Li X Q,Gao J S.Effects of Y loop element FSS structure parameter on frequency respons[J].Optics and Precision Engineering,2006,14(6):1070-1076
[11]王立超,张强,冯晓磊.宽带多屏频率选择表面的设计研究[J].现代雷达,2012,34(8):63-66Wang L C,Zhang Q,Feng X L.Research on wide-band multi-screen frequency selective surface[J].Modern Radar,2012,34(8):63-66