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Introduction to Telecommunication

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Introduction to Telecommunication

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    3. Department of Engineering Technology WHOAMI Ph.D. in Electronics Engineering (1997) His research interests are in the areas of microwave and millimeter wave components including active antennas. In particular he has been working on electromagnetic characterization of microwave electronic devices, on propagation and radiation on non conventional media, on the solution of telegrapher’s equations for Non Uniform Transmission Lines using Confluent Hypergeometric Functions and on the generalization of the Method of Lines (MoL). BS Degree in Electronics Engineering (1994) MMIC circuit design Telecommunication Industry (1998-2002) Two year's experience in Project Management Two year's experience in Process Design Four year's experience in Pre Sales Technical Support Two year's experience in Systems Analysis Four year's experience as an Independent Engineering Consultant (1994-1998) Five year's experience as a Technical Lecturer (1989-1994)

    4. Department of Engineering Technology Summary Frequency Range Governing Equations Constitutive Relations Boundary Conditions Technology Application Areas Advanced Research

    5. Department of Engineering Technology Frequency Range 300 MHz to 30 GHz Wavelength: 1m to 1cm

    6. Department of Engineering Technology Microwave Engineering From 1 to 100 GHz From 30 cm to 3 mm

    7. Department of Engineering Technology Frequency Effects Propagation time for electrical effects is comparable with the period of oscillating currents and charges in the system

    8. Department of Engineering Technology Consequences Circuit Size comparable with ? Lumped Circuit Elements replaced by TRANSMISSION LINES model

    9. Department of Engineering Technology Governing Equations Kirchhoff’s Laws and Voltage-Current concept no longer suffices for an adequate description Analysis in term of a description of the Electric and Magnetic Field associated with the device

    10. Department of Engineering Technology Maxwell’s Equations Derive from: Gauss and Faraday’s Laws By application of the Duality Theorem Can be expressed in the: Time Domain Frequency Domain

    11. Department of Engineering Technology Time Domain

    12. Department of Engineering Technology Frequency Domain

    13. Department of Engineering Technology Constitutive Relations Losses Linearity Anisotropy Homogeneity

    14. Department of Engineering Technology Boundary Conditions

    15. Department of Engineering Technology Technology Challenges

    16. Department of Engineering Technology Waveguides

    17. Department of Engineering Technology Waveguides

    18. Department of Engineering Technology Planar Structures

    19. Department of Engineering Technology Planar Structures

    20. Department of Engineering Technology Active Elements

    21. Department of Engineering Technology Power Generation Magnetron Electromagnetic cavities and electron beam Traveling Wave Tube (TWT) Electromagnetic cavities and electron beam Klystron Slow-wave circuits and electron beam

    22. Department of Engineering Technology Magnetron Features KW in CW MW Peak pulsed op. Uses High-Power radar systems Microwave Heating

    23. Department of Engineering Technology Traveling Wave Tube

    24. Department of Engineering Technology Klystron Oscillator or Amplifier Low Power Microwave Receivers High Power Replaced by Solid-State oscillator for low power applicationsReplaced by Solid-State oscillator for low power applications

    25. Department of Engineering Technology Antennas

    26. Department of Engineering Technology Application Areas Antennas Mobile Communication Remote Sensing Medical Applications MMIC Design and LAN EMC

    27. Department of Engineering Technology Frequency Bands

    28. Department of Engineering Technology Antennas GPS Active Antennas Adaptive antennas Antennas Array Reflector Antennas Low Observable Antennas Conformal High Performance Arrays Adaptive Antennas: Combination of antenna arrays and sophisticated signal processing. It adapts the effective pattern to the radio environment (Cellular Technology) Improving Spectral Efficiency. Low Observable Antennas: the best combination of imperceptibility, high RF performance, and conformity with overall efficiency and affordabilityAdaptive Antennas: Combination of antenna arrays and sophisticated signal processing. It adapts the effective pattern to the radio environment (Cellular Technology) Improving Spectral Efficiency. Low Observable Antennas: the best combination of imperceptibility, high RF performance, and conformity with overall efficiency and affordability

    29. Department of Engineering Technology Mobile Communication Scattering Propagation Models Electromagnetic simulation with CAD software (Touchstone-Libra and HFSS) GPRS (General Packet Radio Service) & UMTS (Universal Mobile Telecommunications System)

    30. Department of Engineering Technology EM Fields & Biological Systems Electromagnetic pollution, dosimetry and protection Biological effects and interaction mechanism

    31. Department of Engineering Technology Remote Sensing Microwave Passives Sensors Design for Atmospheric Parameters Measurement Satellite Remote Sensing of Precipitation Intensity for Cloudy Systems of Various Characteristics Prospecting Radar (GPR) for the Characterization of the Underground Properties Ground Penetrating RadarGround Penetrating Radar

    32. Department of Engineering Technology Medical Applications Microwave hyperthermia for cancer therapy A therapy using non-ionizing microwave radiation Diagnostic with bioimpedences (BIA) Analysis of resistance and reactance in the human body

    33. Department of Engineering Technology MMIC Design & LAN MMIC design in the 0.5-40 GHz frequency range Wireless Communication and Local Area Networks

    34. Department of Engineering Technology Electromagnetic Compatibility #1 Electronics in applications for vehicles Telecommunications Medical devices Avionics

    35. Department of Engineering Technology Electromagnetic Compatibility #2 Information processing Electro-explosive devices (EEDs) Satellite systems and subsystems Military ships (surface and subsurface) Radio transmitters and receivers

    36. Department of Engineering Technology Potential Research Areas EMC Wireless Networks Remote Sensing Energy Conversion (SPS)

    37. Department of Engineering Technology Questions & Answers

    38. Department of Engineering Technology

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