@ARTICLE{Askari, author = {Askari, Mahdi and Zakeri, Abdolnaser and Sayahian Jahromi, Alaeddin and }, title = {A tradeoff between figure of merit and negative refractive index frequency bandwidth }, volume = {24}, number = {0}, abstract ={In this paper in addition to introducing a novel metamaterial structure for creating negative refractive index with a high figure of merit (FOM), we investigate effects of changing the lattice constant on FOM and negative refractive index frequency bandwidth. For this structure, at terahertz frequency range, a very high FOM of 66.8 is observed which is a high and notable value in this frequency range. We observe that by increasing the lattice constant, the FOM decreases but the negative refractive index frequency bandwidth increases, which means a tradeoff between the FOM and the bandwidth }, URL = {http://opsi.ir/article-1-1456-en.html}, eprint = {http://opsi.ir/article-1-1456-en.pdf}, journal = {Accepted and Presented Articles of OPSI Conferences}, doi = {}, year = {2018} }