Antennas: The Essential Building Block for Design and Measurement
A Special Full-Day Short Course with Constantine Balanis
Tuesday, May 19, 2020
Held in Conjunction with APEMC 2020
In this NEW short course at APEMC 2020, industry experts, led by noted author Professor Constantine Balanis, will provide an overview of fundamental and advanced antenna topics. Since antennas are becoming increasingly important due to the continued rapid advances in wireless technology, an understanding of antenna behavior and performance is increasingly critical to efficiently design new products as well as correctly evaluate product performance. Professor Balanis will
share his decades of wisdom to set the stage for the short course with a review of antenna fundamentals.
The following speakers will separately discuss the impact of many of the antenna fundamentals on the practical application of antennas, with an emphasis on measurements. A review of the specialized technique of time gating to resolve complicating factors will be provided, complemented by a live demonstration. To conclude the short course, Professor Balanis will discuss future applications of smart antennas for the modern world.
Course content includes:
Antenna Fundamental Parameters and Figures-of-Merit (140 minutes)
Constantine Balanis, Arizona State University, Phoenix, Arizona, USA
Abstract: Review of antenna fundamental parameters and figures-of-merit, which are used to describe the performance and radiation characteristics of an antenna. Most of these are based on the IEEE Standard Definitions of Terms for Antennas. In addition, some basic and classic antenna types, such as dipoles, loops, helices, microstrips, horns, reflectors, IFA, PIFA, and arrays, will be highlighted. Commercial software for antennas, and the analytical and numerical methods upon which they are based, will be reviewed.
Advanced Antenna Measurement Techniques Using Time Domain Transformation (90 minutes)
Zhong Chen, ETS-Lindgren, Cedar Park, Texas, USA
Abstract: Time domain gating is an effective technique to remove reflections in antenna measurements. The vector frequency response is transformed to time domain via inverse Fourier transforms, and a time domain gate can be applied. This function is included in commercial vector network analyzers. Although its applications seem straightforward, the implementations and limitations can feel like a “black-box”. There are quite a few nuances in the time domain gating applications which can affect the results. This presentation strives to provide an in-depth understanding of the time domain gating algorithm. Topics discussed include aliases, time resolution, typical EMC antenna time signatures, window functions, and time domain gate shapes, etc. We then discuss the gating band edge errors (or “edge effects”), mitigation techniques and the limitations of the post-gate renormalization method used in a VNA. We introduce an alternative edge mitigation method, which can improve the accuracy for many antenna measurement applications.
EMC and Aerospace Antenna Calibration and Measurement Challenges (45 minutes)
Dennis Lewis, The Boeing Company, Seattle, Washington, USA
Abstract: EMC emissions and immunity measurements require the characterization of antennas at reduced distances. Antennas-to-antenna interactions present during calibration, may not be present during measurements and may introduce significant errors. High Intensity Radiated Field (HIRF) measurements require the antennas be calibrated in the far field. Reference measurements must also be taken on-site and require the removal of ground reflections. Time domain techniques can be employed in both these cases but require antennas with good time domain response. Special Transvers Electromagnetic (TEM) antennas were developed to allow time domain gating. TEM antennas are simple, inexpensive and well suited for time domain applications due to their low aperture reflections and clean time domain response.
Smart Antennas: Technology Integrating Antennas, DSP, Communications and Networks (140 Minutes)
Constantine Balanis, Arizona State University, Phoenix, Arizona, USA
Abstract: As the demand for mobile communications is constantly increasing, the need for improved capacity, greater coverage and higher transmission quality rises. Therefore, a more efficient use of the radio spectrum is required. Smart antenna systems are capable of efficiently utilizing the radio spectrum, and they are a promise for an effective solution to meet the desired performance demands in network and communication systems. Smart antenna technology has been considered for mobile platforms such as automobiles, cellular phones (mobile units), and laptops. Smart antennas integrate many technologies, including antennas, digital signal processing, communications and networks. The advancement and integration of the characteristics of each of these areas is critical to the efficiency and performance of a communication system channel, as measured by Bit-Error-Rate (BER) and network Throughput. This presentation reviews the basic principles of smart antennas, and it presents and compares the BER and Throughput of different antenna array geometries, such as the uniform rectangular array (URA).
Dr. Constantine A. Balanis
Dr. Constantine A. Balanis (S’62 – M’68 – SM’74 – F’86 – LF’04) received the BSEE degree from Virginia Tech, Blacksburg, VA, in 1964, the MEE degree from the University of Virginia, Charlottesville, VA, in 1966, and the Ph.D. degree in Electrical Engineering from Ohio State University, Columbus, OH, in l969. From 1964-1970 he was with NASA Langley Research Center, Hampton VA, and from 1970-1983 he was with the Department of Electrical Engineering, West Virginia University, Morgantown, WV. Since 1983 he has been with the School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ, where he is Regents’ Professor. His research interests are in computational electromagnetics, flexible antennas and high impedance surfaces, smart antennas, and multipath propagation. He received in 2004 a Honorary Doctorate from the Aristotle University of Thessaloniki, the 2014 LAPC James R. James Lifetime Achievement Award (UK), the 2012 Distinguished Achievement Award of the IEEE Antennas and Propagation Society, the 2012 Distinguished Achievement Alumnus Award (College of Engineering, The Ohio State University), the 2005 Chen-To Tai Distinguished Educator Award of the IEEE Antennas and Propagation Society, the 2000 IEEE Millennium Award, the 1996 Graduate Mentor Award of Arizona State University, the 1992 Special Professionalism Award of the IEEE Phoenix Section, the 1989 Individual Achievement Award of the IEEE Region 6, and the 1987-1988 Graduate Teaching Excellence Award, School of Engineering, Arizona State University. Dr. Balanis is a Life Fellow of the IEEE. He has served as Associate Editor of the IEEE Transactions on Antennas and Propagation (1974-1977) and the IEEE Transactions on Geoscience and Remote Sensing (1981-1984); as Editor of the Newsletter for the IEEE Geoscience and Remote Sensing Society (1982-1983); as Second Vice-President (1984) and member of the Administrative Committee (1984-85) of the IEEE Geoscience and Remote Sensing Society; and Distinguished Lecturer (2003-2005), Chair of the Distinguished Lecturer Program (1988-1991), member of the AdCom (1992-95, 1997-1999) and Chair of the Awards and Fellows Committee (2009-2011) all of the IEEE Antennas and Propagation Society. He is the author of Antenna Theory: Analysis and Design (Wiley, 2016, 2005, 1997, 1982), Advanced Engineering Electromagnetics (Wiley, 2012, 1989) and Introduction to Smart Antennas (Morgan and Claypool, 2007), and editor of Modern Antenna Handbook (Wiley, 2008) and for the Morgan & Claypool Publishers, series on Antennas and Propagation series, and series on Computational Electromagnetics.
Mr. Zhong Chen
Mr. Zhong Chen is the Director of RF Engineering at ETS-Lindgren, located in Cedar Park, Texas. He has over 25 years of experience in RF testing, anechoic chamber design, as well as EMC antenna and field probe design and measurements. He is an active member of the ANSI ASC C63® committee and Chairman of Subcommittee 1, which is responsible for the antenna calibration and chamber/test site validation standards. He is chair of the IEEE Standard 1309 committee responsible for developing calibration standards for field probes, and IEEE Standard 1128 for absorber measurements. His research interests include measurement uncertainty, time domain measurements for site validation and antenna calibration, and development of novel RF absorber materials. Zhong Chen received his M.S.E.E. degree in electromagnetics from the Ohio State University at Columbus.
Mr. Dennis Lewis
Mr Dennis Lews received his BS EE degree with honors from Henry Cogswell College and his MS degree in Physics from the University of Washington. He has worked at Boeing for 30 years and is recognized as a Technical Fellow, leading the enterprise antenna measurement capability for Boeing Test and Evaluation. Dennis holds ten patents and is the recipient of the 2013 and 2015 Boeing Special Invention Award. He is a senior member of the IEEE and several of its technical societies including the Microwave Theory and Techniques Society (MTT-S), the Antennas and Propagation Society and the Electromagnetic Compatibility (EMC) Society. He actively contributes to these societies as a member of the IEEE MTT-S subcommittee 11 on microwave measurements and as a Board Member and a past Distinguished Lecturer for the EMC Society. He is a Senior Member and served as Vice President on the Board of Directors for the Antenna Measurements Techniques Association (AMTA) and chaired its annual symposium in 2012. Dennis is a part time faculty member teaching a course on Measurement Science at North Seattle College and is chairman of the Technical Advisory Committee. His current technical interests include aerospace applications of reverberation chamber test techniques as well as microwave and antenna measurement systems and uncertainties
Registration Rates for Workshop/Short Course with Constantine Balanis
|1 day workshop only member||$550|
|1 day workshop only non-member||$750|
|1 day workshop only Student Registration||$375|