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  _____      ___     _    _      ___    __    __  
 / ____||   / _ \\  | |  | ||   / _ \\  \ \\ / // 
/ //---`'  / //\ \\ | |/\| ||  | / \ ||  \ \/ //  
\ \\___   |  ___  |||  /\  ||  | \_/ ||   \  //   
 \_____|| |_||  |_|||_// \_||   \___//     \//    
  `----`  `-`   `-` `-`   `-`   `---`       `

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Text this: Design, analysis and verification of hexagon split ring resonator based negative index metamaterial