基于超材料的低频高增益阵列天线研究
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摘要
基于超材料表面设计了一种工作在P波段的高增益阵列天线,文中设计的天线单元采用全金属Vivaldi形式,可工作在200 MHz~2 GHz。天线排布为一维E面阵列,下方置有反射板。为提升天线增益,采用在天线上方加载超材料层的方式。使用HFSS对天线进行仿真。仿真表明:通过加载超材料层的方法,可以在不增加天线物理面积的情况下,使其在200 MHz~600 MHz的增益得到提升,最大可达2.7 d B,且有源驻波变化不大,在工作频段内仍小于2。该技术为低频天线阵列的增益提升提供了一种全新的思路。
A novel P-band antenna array based on metamaterial surface is proposed. The prototype of the array element forms as allmetal Vivaldi antenna,working from 200 MHz to 2 GHz. The antenna elements are arranged to a linear E-plane array,with a reflector board on below. To enhance the gain,metamaterial layer is adopted. Simulation software HFSS is used in this case to simulate the antenna. The result shows that,by using the metamaterial layer,it is possible to increase the gain of the antenna form200 MHz to 600 MHz. The gain has been increased by 2.7 d B for the most,maintaining active VSWR<2 in the band. This technology opens up a new route to enhance the gain of low frequency antenna arrays.
A novel P-band antenna array based on metamaterial surface is proposed. The prototype of the array element forms as allmetal Vivaldi antenna,working from 200 MHz to 2 GHz. The antenna elements are arranged to a linear E-plane array,with a reflector board on below. To enhance the gain,metamaterial layer is adopted. Simulation software HFSS is used in this case to simulate the antenna. The result shows that,by using the metamaterial layer,it is possible to increase the gain of the antenna form200 MHz to 600 MHz. The gain has been increased by 2.7 d B for the most,maintaining active VSWR<2 in the band. This technology opens up a new route to enhance the gain of low frequency antenna arrays.
引文
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[11]SCHIEK B,KOHLER J.An improved microstrip-to-slot transition[J].IEEE Transactions on Microwave Theory Technology,1976,24(4):231-233.
[12]TRIFUNONIC V,JOKANOVIC B.New uniplanar balun[J].Electronics Letters,1991,27(10):813-815.
[13]REID E W,BALBUENA L O,MOEZ K.Integrated lowloss balun for Vivaldi antennas[J].Electronics Letters,2009,45(9):442-444.
[14]REID E W,BALBUENA L O,CHADIRI A.A 324-element Vivaldi antenna array for radio astronomy instrumentation[J].IEEE Transactions on Instrument Measurment,2012,61(1):241-250.
[15]KINDT R W,PICKLES W R.Ultrawideband all-metal flared-notch array[J].IEEE Transactions on Antennas and propagation,2010,58(11):3568-3575.
[2]郑健,韩鹏,陈溢杭.单负超材料多层结构的表面态研究[J].半导体光电,2013,36(5):615-619.ZHENG Jian,HAN Peng,CHEN Yihang.Investigation of surface of multilayered structure containing single-negative metamaterials[J].Semiconductor Optoelectronics,2013,36(5):615-619.
[3]CHACKO B P,AUGUSTIN G,DENIDNI T A.A high-gain antenna based on zero-index metamaterial superstrate[J].IEEE International Symposium on Antennas and Propagation,2013,370(1):122-123.
[4]HADI R J,SANDHAGEN C,BANGERT A.Wideband high-gain multi-layer patch antenna-coupler with metamaterial superstrate for X-band applications[C]//European Microwave Integrated Circuit Conference.[S.l.]:IEEE Press,2014:636-639.
[5]CHACKO B P,AUGUSTIN G,DENIDNI T A.High-gain metamaterial antenna for point-to-point communication systems[C]//2014 8th European Conference on Antennas and Propagation.[S.l.]:IEEE Press,2014:2393-2396.
[6]LIN H H,WU C Y,YEH S H.Metamaterial enhanced high gain antenna for Wi MAX application[C]//TENCON IEEE Region 10 Conference.[S.l.]:IEEE Press,2007:1-3.
[7]WEN Z B,WANG N B,JIAO Y C.Study on high gain patch antenna with metamaterial cover[C]//7th International Symposium on Antennas.[S.l.]:IEEE Press,2006:1-2.
[8]JIN D L,LI B,HONG J S.Gain improvement of a microstrip patch antenna using metamaterial superstrate with the zero refractive index[C]//2012 International Conference on Microwave and Millimeter Wave Technology.[S.l.]:IEEE Press,2012:1-3.
[9]GIBSON P J.The Vivaldi aerial[C]//Proceedings 9th European Microwave Conference.[S.l.]:IEEE Press,1979:101-105.
[10]任波,吴鸿超,朱瑞平,等.渐变槽线天线的参数分析与设计[J].现代雷达,2010,32(11):58-62.REN Bo,WU Hongchao,ZHU Ruiping,et al.Analysis and design of parameters in tapered slot antenna[J].Modern Radar,2010,32(11):58-62.
[11]SCHIEK B,KOHLER J.An improved microstrip-to-slot transition[J].IEEE Transactions on Microwave Theory Technology,1976,24(4):231-233.
[12]TRIFUNONIC V,JOKANOVIC B.New uniplanar balun[J].Electronics Letters,1991,27(10):813-815.
[13]REID E W,BALBUENA L O,MOEZ K.Integrated lowloss balun for Vivaldi antennas[J].Electronics Letters,2009,45(9):442-444.
[14]REID E W,BALBUENA L O,CHADIRI A.A 324-element Vivaldi antenna array for radio astronomy instrumentation[J].IEEE Transactions on Instrument Measurment,2012,61(1):241-250.
[15]KINDT R W,PICKLES W R.Ultrawideband all-metal flared-notch array[J].IEEE Transactions on Antennas and propagation,2010,58(11):3568-3575.