학술논문

Characterization of Tunable Metamaterial Elements Using MEMS Switches
Document Type
Periodical
Author
Source
IEEE Antennas and Wireless Propagation Letters Antennas Wirel. Propag. Lett. Antennas and Wireless Propagation Letters, IEEE. 6:401-404 2007
Subject
Fields, Waves and Electromagnetics
Metamaterials
Microswitches
Switches
Magnetic resonance
Magnetic materials
Magnetic switching
Magnetic analysis
Radio frequency
Micromechanical devices
Propagation losses
microelectromechanical (MEMS)
Language
ISSN
1536-1225
1548-5757
Abstract
An experimental demonstration and analysis of a dual-state switchable magnetic metamaterial element in which the resonance excitation of the particle is controlled using an RF microelectromechanical (MEMS) switch is presented. By controlling the resonant properties of the individual ring, unit cells composed of such elements can be used to realize an effective dual-state switchable medium. Transmission and loss characteristics of the switchable element for two different switch topologies are compared. Experimental data shows that the MEMS switch allows for a switchable resonant particle with reasonably low losses.