title: Continuously tunable terahertz metamaterial employing magnetically actuated cantilevers.
abstract: Terahertz metamaterial structures that employ flexing microelectromechanical cantilevers for tuning the resonance frequency of an electric split-ring resonator are presented. The tuning cantilevers are coated with a magnetic thin-film and are actuated by an external magnetic field. The use of cantilevers enables continuous tuning of the resonance frequency over a large frequency range. The use of an externally applied magnetic field for actuation simplifies the metamaterial structure and its use for sensor or filter applications. A structure for minimizing the actuating field is derived. The dependence of the tunable bandwidth on frequency is discussed.
authors: Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, Ankara, Turkey.
authors: Burak
authors: B
authors: Ozbey
authors: Ozgur
authors: O
authors: Aktas
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008280:Magnetics / Q000295:instrumentation*; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055053:Terahertz Radiation; D014159:Transducers