Now showing items 1-20 of 30

    • Antennas and Metamaterials for Electromagnetic Energy Harvesting 

      Almoneef, Thamer (University of Waterloo, 2012-08-14)
      The emergence of microwave energy harvesting systems, commonly referred to as rectenna or Wireless Power Transfer (WPT) systems, has enabled numerous applications in many areas since their primary goal is to recycle the ...
    • Artificial Magnetic Materials for High Gain Planar Antennas 

      Attia, Hussein (University of Waterloo, 2011-03-30)
      A new method is proposed to enhance the gain and efficiency of planar printed antennas. The proposed method is based on using artificial magnetic materials as a superstrate for planar printed antennas while maintaining the ...
    • Artificial Magnetic Materials: Limitations, Synthesis and Possibilities 

      Kabiri, Ali (University of Waterloo, 2010-10-01)
      Artificial magnetic materials (AMMs) are a type of metamaterials which are engineered to exhibit desirable magnetic properties not found in nature. AMMs are realized by embedding electrically small metallic resonators ...
    • Artificial Neural Networks for Microwave Detection 

      Ashoor, Ahmed (University of Waterloo, 2012-05-23)
      Microwave detection techniques based on the theory of perturbation of cavity resonators are commonly used to measure the permittivity and permeability of objects of dielectric and ferrite materials at microwave frequencies. ...
    • Breast Cancer Detection Using Microwaves and Microwave-Thermography Techniques 

      Alsaedi, Dawood (University of Waterloo, 2021-11-16)
      The accelerated growth in Microwave Imaging (MWI) and Microwave Detection (MWD) is driven by microwave ability to penetrate materials that are considered opaque at a shorter wavelength. This elevates MWI potential to ...
    • Design and Fabrication of MIM Diodes with Single and Multi-Insulator Layers 

      Aydinoglu, Ferhat (University of Waterloo, 2013-10-18)
      A Metal-Insulator-Metal (MIM) diode is a device that can achieve rectification at high frequencies. The main objective of this research work is designing, fabricating, and characterizing thin film MIM diodes with single ...
    • Detection of Sub-Millimeter Surface Cracks using Complementary Split-Ring Resonator 

      Albishi, Ali (University of Waterloo, 2012-07-25)
      Many interesting ideas have emerged from research on electromagnetic eld interactions with di erent materials. Analyzing such interactions has extracted some essential proper- ties of the materials. For example, extracting ...
    • Electrically Small Particles for Energy Harvesting in the Infrared and Microwave Regimes 

      AlShareef, Mohammed R. (University of Waterloo, 2014-09-25)
      Harnessing energy from clean and sustainable resources is of crucial importance to our planet. Several attempts through different technologies have been pursued to achieve efficient and sustainable energy production systems. ...
    • Electrically Small Probe for Near-field Detection Applications 

      Alqahtani, Abdulaziz (University of Waterloo, 2014-01-31)
      The microwave near-field detection technique is of interest to many researchers for characterizing materials because of its high sensitivity. It is based on sensing buried objects by producing an evanescent field.The ...
    • Electrically thin lenses and reflectors 

      Ruphuy, Miguel (University of Waterloo, 2016-08-16)
      In physics, specially in optics, ray models are commonly used to simplify problems and further design devices for a diverse variety of applications. This diversity runs from mass-oriented products, such as cameras, to more ...
    • Electromagnetic Energy Harvesting 

      Olaimat, Melad (University of Waterloo, 2021-10-28)
      The advent of rectenna systems has opened the door for many applications, with the main goal of harvesting electromagnetic waves. Many designs have been presented to provide a high conversion efficiency. Some works have ...
    • Electromagnetic Energy Transduction Using Metamaterials and Antennas 

      Almoneef, Thamer (University of Waterloo, 2017-08-29)
      The advent of rectenna systems almost half a century ago has enabled numerous applications in a number of areas, with the main goal of recycling the ambient microwave energy. In previously presented rectennas, microstrip ...
    • Electromagnetic Wave Transmission through Sub-wavelength Channels and Bends Using Metallic Wires 

      Kashanianfard, Mani (University of Waterloo, 2009-08-31)
      Techniques and technologies to transfer electromagnetic energy through sub-wavelength channels have been researched extensively in the past few years because their application in different areas such as sub-wavelength ...
    • Finite-Difference Time-Domain Simulations of Light Scattering from Retinal Photoreceptors 

      Abdallah, Samer S. (University of Waterloo, 2007-09-28)
      Recently, a novel optical imaging technique was successfully used in measuring the functional response of living retinal tissues. The technique, functional ultra high resolution optical coherence tomography, measures ...
    • Graphene Oxide Femto Gel Photodetector 

      Alsaedi, Dawood (University of Waterloo, 2016-06-29)
      Due to its unique optical (electrical) properties such as wide-range absorbance of wavelength, and high carrier mobility, graphene becomes a promising candidate for photodetector devices. The ability to tune the band gap, ...
    • Hybrid Computational Algorithms for the Problem of Scattering from Grating Structures 

      Alavikia, Babak (University of Waterloo, 2011-08-09)
      Modeling of wave scattering from grating couplers has become increasingly important due to extensive recent research interest in the problem of plasmonic resonance. Computational algorithms which are specially used to model ...
    • Intelligent Microwave Detection of Surface and Sub-Surface Anomalies 

      Ali, Abdulbaset (University of Waterloo, 2017-04-21)
      Microwave near-field testing is a promising nondestructive testing method because of its unique capability to interrogate metallic surfaces and multi-layer dielectric structures. Due to today's need for lighter, stronger, ...
    • Intelligent Microwaves-Based Modalities for Breast Cancer Detection 

      Aldhaeebi, Maged (University of Waterloo, 2020-03-13)
      Breast cancer is considered to be one of the major causes of mortality in women worldwide. Detection of breast tumors in their early stage is the key factor for possible successful treatment and can significantly reduce ...
    • Investigation of RF Direct Detection Architecture Circuits for Metamaterial Sensor Applications 

      Suwan, Na'el (University of Waterloo, 2011-01-19)
      Recent advances in metamaterials research has enabled the development of highly sensitive near-field microwave sensors with unprecedented sensitivity. In this work, we take advantage of the increase in the sensitivity to ...
    • Metamaterials for Decoupling Antennas and Electromagnetic Systems 

      Bait Suwailam, Mohammed (University of Waterloo, 2011-04-25)
      This research focuses on the development of engineered materials, also known as meta- materials, with desirable effective constitutive parameters: electric permittivity (epsilon) and magnetic permeability (mu) to decouple ...

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