利用介电常数接近于零的窄波导透镜聚焦毫米波

2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI:10.1109/METAMATERIALS.2014.6948658

V. Pacheco-Peña, V. Torres, B. Orazbayev, M. Beruete, M. Navarro‐Cía, N. Engheta

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引用次数: 1

摘要

设计了一种epsilon-near - zero (ENZ)平凹透镜，并对其进行了数值研究和毫米波实验验证。金属透镜是由一组叠成的窄空心矩形波导阵列模拟ENZ介质在截止点附近工作而合成的。在工作频率(f0 = 144 GHz， λ0 = 2.08 mm)下，透镜的实验传输功率提高了15.9 dB，且与自由空间的阻抗匹配良好。

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Focusing millimetre waves by means of a permittivity-near zero narrow-waveguide lens

An epsilon-near zero (ENZ) plano-concave lens is designed, numerically studied and experimentally demonstrated at millimeter-waves. The metallic lens is synthesized by an array of stacked narrow hollow rectangular waveguides working near cutoff emulating an ENZ medium. At the working frequency (f0 = 144 GHz, λ0 = 2.08 mm) the focusing properties of the lens demonstrate an experimental transmission power enhancement of 15.9 dB with a good impedance matching with free space.

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2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics

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