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Title: A novel flat lens horn antenna designed based on zero refraction principle of metamaterials
Authors: Wu, Q.
Pan, P.
Meng, F.-Y.
Li, L.-W. 
Wu, J.
Issue Date: May-2007
Citation: Wu, Q., Pan, P., Meng, F.-Y., Li, L.-W., Wu, J. (2007-05). A novel flat lens horn antenna designed based on zero refraction principle of metamaterials. Applied Physics A: Materials Science and Processing 87 (2) : 151-156. ScholarBank@NUS Repository.
Abstract: In this paper, a horn antenna filled with a metamaterial structure as lens inner the aperture is presented. Unlike conventional curve lenses, the lens is designed in the present work using a fully flat structure, which results in a great improvement for the directivity of the horn antenna based on the zero refraction characteristics of the metamaterial. In this structure, a periodic-structure metamaterial with three-layer metal grids is designed using the CST Microwave Studio for optimization and its zero refraction property is validated. For the characterization of the antenna, the electric-field distribution in radiation area, reflection parameter (S11), gain and radiation pattern are calculated. The results show that the gain of a wide flare angle horn antenna is enhanced with over 2 dB between 16.10-17.30 GHz after the metamaterial is utilized. Therefore, the metamaterial lens horn structure results in a miniaturized antenna design approach compared to the optimum conventional horn of the same aperture size and gain in the interested frequency band. © Springer-Verlag 2007.
Source Title: Applied Physics A: Materials Science and Processing
ISSN: 09478396
DOI: 10.1007/s00339-006-3820-9
Appears in Collections:Staff Publications

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