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

• NCJ Number: 249128
• Journal: IEEE Microwave and Wireless Components Letters Volume: 23 Issue: 8 Dated: August 2013 Pages: 421-423
• Author(s): Y. Damgaci; B. A. Cetiner
• Date Published: August 2013
• Length: 3 pages
• Grant Number(s): 2009-SQ-B9-K005
• Agencies: NIJ-Sponsored
• Publication Type: Research (Applied/Empirical)
• Award: NEMS Integrated Reconfigurable Antenna operating at 150, 400, 700, 800, and 4900 MHz bands for Interoperable Public Safety Communications

Annotation

This article presents a new approach for tuning the resonant frequency of metamaterial-inspired transmission lines (TLs) by using electrowetting on dielectric (EWOD).

Abstract

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)