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内嵌异向介质平板透镜型喇叭天线特性研究 被引量：6

Properties of horn antenna embedded with flat metamaterial lens
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摘要 根据异向介质零折射特性，设计出一种平板结构的异向介质，由该异向介质构成了一种新型的透镜喇叭天线。利用CST Microwave Studio仿真软件优化设计出异向介质结构，并通过棱镜折射仿真实验验证了其零折射特性，然后将此结构嵌入到矩形喇叭天线口面上，对该天线的端口反射系数、辐射电场分布和增益等电磁特性进行了研究。研究结果表明：在16．10～17．20GHz频段，异向介质透镜喇叭天线增益超过20dB，比相同尺寸的未加异向介质常规喇叭天线提高2dB以上，其口面利用系数可达0．60，定向性可与相同口径的最优喇叭相比，而纵向尺寸只有相同口径最优喇叭的56％，从而实现了喇叭天线小型化的目的。 A novel lens horn antenna is presented using a flat metamaterial lens based on the zero refraction principle of metamaterials. First the parameters of metamaterial structure are optimized by CST Microwave Studio software, and its zero refraction property is verified by the prism refraction simulation experiment. Then a rectangular horn antenna with metamaterial lens is constructed by filling this metamaterial structure inside the aperture of the horn. Its port reflecting coefficient, radiation E-field distribution and gain are obtained by numerical simulation. The results show that in the frequency rang of 16.10-17.20 GHz, the gain of horn antenna is over 20 dB, which is 2 dB above the conventional horn without metamaterials, and the aperture efficiency reaches 0.60, so its directivity can be close to that of the same aperture optimum horn, but its length is only 56 percent of the optimum horn＇s. Therefore, the miniaturization of horn antenna is obtained.
作者 吴群 潘攀 孟繁义 吴健
机构地区 哈尔滨工业大学电子与信息技术研究院 电波环境特性及模化技术重点实验室
出处 《电波科学学报》 EI CSCD 北大核心 2008年第1期49-54,共6页 Chinese Journal of Radio Science
基金 国家自然基金资助项目(No.60571026) 电波环境特性及模化技术重点实验室资助项目(No.514860303)
关键词 异向介质 零折射 透镜喇叭天线 定向性 metamaterials zero refraction lens horn antenna directivity
分类号 TN82 [电子电信—信息与通信工程]
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参考文献15

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同被引文献57

  • 1周蔚红,刘培国,何建国,李高升.时域TEM喇叭天线的分析和设计[J].国防科技大学学报,2006,28(4):59-62. 被引量：8
  • 2李育红,杨程,周正.一种新颖的超宽带楔形微带准喇叭天线设计[J].电路与系统学报,2007,12(1):143-146. 被引量：3
  • 3VESELAGO V G. The electrodynamics of substances with simultaneously negative values of and soviet [J]. Physics.-Uspekhl, 1968, 10(4): 509-514.
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  • 5ELEFTHERIADES G V, IYER A K, and KREMER P C. Planar negative refractive index media using periodically L-C loaded transmission lines [J]. IEEE Transactions on Microwave Theory and Techniques, 2002, 50 (12):2702-2712.
  • 6PENDRY J B. Negative refraction makes a perfect lens[J]. Physical Review Letters, 2000, 85 (18):3966- 3969.
  • 7GRBIC A and ELEFTHERIADES G V. Periodic anal- ysis of a 2-D negative refractive index transmission line structure [J]. IEEE Transactions on Antennas and Propagation, 2003, 51(10): 2604-2611.
  • 8GRBIC A and ELEFTHERIADES G V. Growing evanescent waves in negative-refractive-index transmission -line media [J]. Applied Physics Letters, 2003, 82 (12) : 1815-1817.
  • 9ANDRADE T, GRBIC A, and ELEFTHERIADES G V. Growing evanescent waves in continuous transmission-line grid media[J]. IEEE Microwave and Wireless Components Letters, 2005, 15(2) :131-133.
  • 10GRBIC A and ELEFTHERIADES G V. Subwave- length focusing using a negative-refractive-index transmission-line lens [J]. IEEE Antennas and Wireless Propagation Letters, 2003, 2:186-189.

引证文献6

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电波科学学报
2008年 第1期

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