Title: Metamaterial Devices
1Metamaterial Devices
- Rubaiyat Islam
- The Edward S. Rogers Sr. Dept. of Electrical
Computer Engineering, University of Toronto,
Toronto, ON
2Introduction
Metamaterial/Photonic Crystal Artificial
medium tailored for specific Electromagnetic
properties by periodically altering the
composition of a host dielectric.
Shelby, Smith Science (April 2001)
Parker, Charlton Physics Web (Aug 2000)
Boeing Physics Today (June 2004)
3Introduction
Negative-Refractive-Index (NRI) Metamaterials.
e gt 0, m gt 0 e lt 0,
m lt 0 (Right-handed)
(Left-handed)
4Metamaterial Devices
Compact phase shifters
Compact Branchline Coupler
72 size reduction
Plated via to ground
Inter-digital capacitor
5Metamaterial Devices
High Coupling edge-coupled coupler (3dB Power
splitter implementation)
High Directivity (over 40 dB) and high isolation
(over 70 dB) coupler
6MS/NRI balun for microstrip to coplanar strip
transition
Leaky wave backfire antenna (Grbic 2002)
Compact Low profile antenna with vertical
polarization (Qureshi, Antoniades 2005)
7Sub-diffraction imaging microwave Lens (Grbic
2003)
Broadband, zero degree phase, power divider
(Antoniades 2005)
8Summary
- Theory of Negative-Refractive-Index material
synthesis, experimental verification and device
fabrication/testing - Ongoing work Frequency selective surfaces,
plasmonic metamaterials and waveguides,
superluminal pulse propagation, electronically
tunable phase shifters etc - Future work Compact low-loss highly selective
filters, compact diplexer, evanescent wave filter
etc