Development of novel tunable dual-band negative index metamaterial using open stub-loaded stepped-impedance resonator

• Main Authors: Alhawari, Adam Reda Hasan, Ismail, Alyani, Mahdi, Mohd Adzir, Raja Abdullah, Raja Syamsul Azmir
• Format: Article
• Language: English
• Published: EMW Publishing 2011
• Online Access: http://psasir.upm.edu.my/id/eprint/23127/1/Development%20of%20novel%20tunable%20dual-band%20negative%20index%20metamaterial%20using%20open%20stub-loaded%20stepped-impedance%20resonator.pdf; http://psasir.upm.edu.my/id/eprint/23127/; http://www.jpier.org/PIERB/pier.php?paper=11082209

This study reports on tunable planar metamaterial design that is capable to achieve dual-band negative index of refraction responses operating in microwave regime. Its distinctive characteristic is the usage of tuning open stub-loaded stepped-impedance resonators. Parameters retrieval algorithm, and full-wave simulation of prism-shaped structure were carried out to validate the negative refraction characteristics of metamaterial structure. The results predict its prospect as a very promising alternative to the conventional ones, which is compatibly applicable on various potential microwave devices especially when dual-band function is required. In addition to that, its design flexibility offers a various frequency bands at any possible choice, which is alterable together with any design parameters changes.