کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1542999 | 997401 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Low loss broadband polarization independent fishnet negative index metamaterial at 40 GHz Low loss broadband polarization independent fishnet negative index metamaterial at 40 GHz](/preview/png/1542999.png)
We present a polarization independent fishnet negative index metamaterial at 40 GHz. The structure is investigated theoretically using finite element method simulations and experimentally by measuring the amplitude and phase of the S-parameters. The experimental setup for free space measurements of both transmission and reflection is hereby introduced. The internal properties are thereafter retrieved and show the double-negative behavior of the structure. This negative index metamaterial exhibits very high transmission (−0.13 dB), low reflection (−33.1 dB) and a high figure of merit (FOM = |Re(n)/Im(n)| = 42), where the real part of the refractive index is nearly −1 (Re(n) = −0.93) at 40 GHz.
► We propose a novel negative index metamaterial fishnet design at 40 GHz.
► The design is polarization independent.
► It exhibits high transmission, low loss and broad negative index frequency range.
► Simulation and experimental results are in good agreement.
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 10, Issue 3, June 2012, Pages 245–250