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    Author: Swanson, Daniel G.
    Sponsored by: IEEE Microwave Theory & Techniques Society
    Tutorial Level: Introductory
    Publication Date: Aug-2010
    Run Time: 1:00:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time

    Abstract
    This course will provide an introduction covering the superheterodyne receiver, the ideal brick wall filter, and insertion loss and return loss concepts. Additionally, approximation theory and equal ripple functions as well as amplitude and group delay responses will be discussed. Lowpass prototypes will be covered in this course including Chebyshev and elliptic prototypes. The course will review the process of finding prototype element values, frequency and impedance scaling, and transformations to highpass, bandpass, and bandstop. Finally, unloaded Q and loss will be discussed. In particular, Qu and volume, basic concepts will be reviewed. Additionally, Qu for common technologies and estimating midband loss will be discussed.

    Keywords: filter design , microwave filters

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    Author:Best, Steven
    Sponsored by:IEEE Antennas and Propagation Society
    Tutorial Level: Introductory
    Publication Date: Feb-2009
    Run Time: 1:45
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time

    Abstract
    As today's ubiquitous wireless devices decrease in size, there is an increasing demand for physically smaller antennas, yet the performance requirements are rarely relaxed. Optimizing the performance properties of electrically small antennas represents a significant design challenge for the antenna engineer. This course provides a discussion on the fundamental theory, challenges and performance trade-offs associated with the design of electrically small antennas.

    The course begins with a brief overview of the basic theory and concepts associated with electrically small antennas. This segment of the presentation provides an understanding of antenna performance limitations in terms of impedance, radiation patterns, bandwidth, efficiency, and quality factor. Techniques used to design self-resonant electrically small antennas are described and compared. These include dielectric loading, linear loading (increasing wire length), top-loading, and "folded" configurations. The relationship between the antenna's performance characteristics and its physical properties is discussed. Issues such as the significance of antenna geometry are considered. The performance of the small antenna on small finite ground planes is considered with a particular emphasis on how the antenna's location on the ground plane affects impedance, pattern and polarization properties. The lecture concludes with a discussion on recent advances made in the design of low profile, conformal and integrated device antennas.

    Keywords: capacitive loading , chu limit , current vector alignment , electric dipole , frequency , inductive loading , inverted-f , inverted-l , magnetic dipole , multi-arm folding , polarization , small antenna limit , wireless local area network

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.

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    Author: Chen, Zhi Ning
    Sponsored by: IEEE Antennas and Propagation Society
    Tutorial Level: Intermediate
    Publication Date: Sep-2009
    Run Time: 1:00:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time


    Abstract
    This is a hot topic due to immediate demand from industry. However, the key design issues are often ignored, in particular by the students. In this course, these issues will be highlighted from an application point of view. The theoretical analysis is also given to help students understand the broadband radiation behavior well. The following is the abstract of the course.

    The research and development of ultra-wideband (UWB) technology has greatly spurred the design of small broadband antennas. The requirements for the UWB antennas include consistent impedance and radiation performance over an ultra-wide bandwidth of 3.1-4.8GHz/6-10.6GHz/3.1-10.6GHz. The miniaturization of the antennas becomes the most critical design challenges in commercial UWB systems such as high-speed wireless USB dongles. This course reviews the development of the small UWB antennas. The key design issues of the UWB antennas such as planar printed UWB antennas are highlighted. The new techniques to reduce the effect of ground plane on the antenna performance, to further miniaturize antenna, and to co-design antenna with RF filters are elaborated. The latest applications of small printed antennas in wireless UWB systems are described in brief.

    Keywords: Antenna Under Test , Direct Sequence-Ultra-Wideband , FCC , GSM , HSDPA , Multiband Orthogonal Frequency-Division Multiplexing , USB , UWB , Ultra-Wideband , Universal Serial Bus , WLAN , WiFi , WiMAX , Wireless Universal Serial Bus

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.

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    Author: Yahya Rahmat-Samii
    Sponsored by:IEEE Antennas & Propagation Society
    Tutorial Level: Intermediate
    Publication Date: Feb-2011
    Run Time: 1:30:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time

    Abstract

    Optimization is the process of upgrading something to perform better. Engineers constantly look for improving their designs in multi parametric solution space. Imagine that you will be able to use nature's evolutionary processes to obtain the best parameters for your designs. This is the subject of this course which is divided into two parts.

    This course is Part I and covers the applications of Genetic Algorithms (GA). The underlying fundamental concepts of Genetic Algorithms are presented and then some representative examples are provided. Useful references are listed to allow for more in-depth understandings of this topics.

    Keywords: Genetic Algorithms , Particle Swarm Optimization , antenna design , evolutionary optimization , global evolutionary optimizers

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.

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    Author: Yahya Rahmat-Samii
    Sponsored by:
    IEEE Antennas & Propagation Society
    Tutorial
    Level: Intermediate
    Publication Date:
    Feb-2011
    Run Time:
    1:30:00
    CEUs:
    .3
    PDHs
    : 3
    ECSA CPD (Category 1 - Development Activities):
    1 - Includes study time

    Abstract
    Optimization is the process of upgrading something to perform better. Engineers constantly look for improving their designs in multi parametric solution space. Imagine that you will be able to use nature's evolutionary processes to obtain the best parameters for your designs. This is the subject of this course which is divided into two parts.

    This course is Part II and covers the applications of Particle Swarm Optimization (PSO). The underlying fundamental concepts of Particle Swarm Optimization are presented and then some representative examples are provided. Useful references are listed to allow for more in-depth understanding of this topic.

    Keywords: Genetic Algorithms , Particle Swarm Optimization , antenna design , evolutionary optimization , global evolutionary optimizers

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.

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    Author: Edwards, Terry
    Sponsored by: IEEE Microwave Theory & Techniques Society
    Tutorial Level: Beginner
    Publication Date: Aug-2010
    Run Time: 1:00:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time

    Abstract
    The main aim of this course is to provide the learner with a detailed understanding of millimeter-wave circuit technology. Strongly supported by diagrams and equations, the following aspects are included:
    • Some appropriate semiconductor materials: silicon, SiGe, GaAs, GaN, InP, etc.
    • Some associated transistor and MMIC technologies
    • The increasing importance of CMOS chip technology (both "direct" CMOS and SiGe BiCMOS)
    • The twin challenges of generally (solid-state) decreasing RF output power availability and increasing noise figure as frequency increases
    • Important transmission structures including microstrip and grounded co-planar waveguide (GCPW)
    • An overview of an alternative transmission structure - PolyStrata (TM)
    • Spatial power combining' the vitally important subject of packaging.
    It will generally be assumed that everyone taking this course will start with a working knowledge of RF and microwave engineering.

    Keywords: BiCMOS , CMOS , GCPV , circuit technology , spatial power

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.

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    Author:Hoyos, Sebastian
    Sponsored by:IEEE Microwave Theory & Techniques Society
    Tutorial Level: Advanced Beginner
    Publication Date: Feb-2010
    Run Time: 1:00:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time


    Abstract
    This tutorial will present multi-path receivers architectures as a potential candidate for the design of software-defined receivers. These receivers parallelize the front-end by expanding the RF input signal. This expansion requires multiple paths, and parallel sampling at the end of the integration time provides a set of coefficients that become the digital representation of the signal. Each parallel path comprises of a switched gm-C filter structure that is modified to combine mixing with a base function, windowing and integration. Due to parallel digital signal processing, each path operates only on a fraction of the signal bandwidth, thus relaxing the tracking bandwidth requirements and minimizing the power consumption of each sampling path. Further, the lower speeds provide robustness to jitter in the sampling clocks, which otherwise can impose a major limitation in achieving high dynamic range. This topology enables the realization of a Software-defined radio multi-standard receiver that not only works for narrowband standards like GSM and Bluetooth, but also for wideband standards like Wimax and Wi-Fi and very wideband standards like ultrawideband.

    Keywords: Analog filter , Brickwall filter , Clock-Jitter , Digital Background Calibration , Filter-bank , Multi-channel , Sinc filter , Time-Interleaved

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    Authors: Chung, Youchung
    Sponsored by:IEEE Antennas and Propagation Society
    Tutorial Level: Intermediate
    Publication Date: Dec-2009
    Run Time: 1:00:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time


    Abstract
    This course will begin by reviewing auto ID comparison with bar Code and the origin of RFID. RFID System, elements, Tag Types, and Operation will also be examined. The course will also present RFID characteristics and will show how RFID systems are classified. A brief overview of Frequency Band (ISO) & Communication Methods will also be presented. A review of applications will also be discussed.

    Keywords: EIRP , ISO , RFID , RTLS , Reader Sensitivity , Smith chart , T-Matching , Tag Sensitivity

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.

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    Author:Schubert, E. Fred
    Sponsored by:IEEE Photonics Society
    Tutorial Level: Intermediate
    Publication Date: Nov-2005
    Run Time: 1:55:00
    CEUs: .3
    PDHs: 3
    ECSA CPD (Category 1 - Development Activities): 1 - Includes study time


    Abstract
    This course presents an introduction as well as reference materials for professionals working in solid-state lighting. Course materials include the operating principles, device physics, fabrication, and applications of light-emitting diodes. Course materials also include a detailed discussion of daylight illumination sources, planckian sources, human vision, eye sensitivity, photometric and radiometric quantities, and color rendering capabilities of light sources.

    Keywords: Planckian radiator , chip shaping , external quantum efficiency , extraction efficiency , internal quantum efficiency , luminous efficacy of radiation , luminous efficiency of a source , power efficiency , radiometric units , wavelength converter

    For individuals not subscribed to the IEEE eLearning Library, this course is available for individual purchase.