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Metamaterial Devices

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Metamaterial Devices Rubaiyat Islam The Edward S. Rogers Sr. Dept. of Electrical & Computer Engineering, University of Toronto, Toronto, ON Introduction Introduction ... – PowerPoint PPT presentation

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Title: Metamaterial Devices


1
Metamaterial Devices
  • Rubaiyat Islam
  • The Edward S. Rogers Sr. Dept. of Electrical
    Computer Engineering, University of Toronto,
    Toronto, ON

2
Introduction
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)
3
Introduction
Negative-Refractive-Index (NRI) Metamaterials.
e gt 0, m gt 0 e lt 0,
m lt 0 (Right-handed)
(Left-handed)
4
Metamaterial Devices
Compact phase shifters
Compact Branchline Coupler
72 size reduction
Plated via to ground
Inter-digital capacitor
5
Metamaterial Devices
High Coupling edge-coupled coupler (3dB Power
splitter implementation)
High Directivity (over 40 dB) and high isolation
(over 70 dB) coupler
6
MS/NRI balun for microstrip to coplanar strip
transition
Leaky wave backfire antenna (Grbic 2002)
Compact Low profile antenna with vertical
polarization (Qureshi, Antoniades 2005)
7
Sub-diffraction imaging microwave Lens (Grbic
2003)
Broadband, zero degree phase, power divider
(Antoniades 2005)
8
Summary
  1. Theory of Negative-Refractive-Index material
    synthesis, experimental verification and device
    fabrication/testing
  2. Ongoing work Frequency selective surfaces,
    plasmonic metamaterials and waveguides,
    superluminal pulse propagation, electronically
    tunable phase shifters etc
  3. Future work Compact low-loss highly selective
    filters, compact diplexer, evanescent wave filter
    etc
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