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Tunable Zeroth-Order Resonance in Metamaterial Transmission Lines Based on Electrowetting on Dielectric

NCJ Number
IEEE Microwave and Wireless Components Letters Volume: 23 Issue: 8 Dated: August 2013 Pages: 421-423
Date Published
August 2013
3 pages
This article presents a new approach for tuning the resonant frequency of metamaterial-inspired transmission lines (TLs) by using electrowetting on dielectric (EWOD).

Coplanar Waveguide (CPW) metamaterial-inspired TLs were designed and used as digital microfluidic platforms, and tunable resonance frequency was demonstrated for RF/microwave applications. A repeatable tuning mechanism was developed by exploiting the interface deformation of a liquid metal (mercury) droplet by an applied voltage. The maximum tuning range achieved was approximately 400 MHz (from 3.51 GHz to 3.92 GHz) with a dc actuation voltage of 110 V. (Publisher abstract modified)

Date Published: August 1, 2013