IEEE Miami Section in Conjunction with Energy Systems Research Laboratory at Florida International University is pleased to invite you to lecture on
The Development and Future of Antenna Arrays
by Randy L. Haupt
Professor and Chair, Colorado School of Mines
Date: Friday, Jan 24, 2014
Time: 10:00 AM – 11:00 PM
Place: Room no.1115,ECE Department, FIU
10555 W. Flagler Street, Miami, Florida
Large antennas create the high gain needed to boost the received signal for a communications or radar system. Today, reflectors and arrays compete for large aperture jobs in many types of systems. In general, the reflector is relatively inexpensive, that is why it is the antenna of choice for commercial activities, such as satellite TV. If the reflector must be moved in order to locate or track a signal, then the gimbals, servomotors, and other mechanical parts become a reliability and maintenance issue that becomes a significant lifecycle cost. Also, mechanical steering might be too slow to meet some of the demands on platforms such as airplanes. The array – in particular, the phased array – makes many performance promises but for a price.
Some of the unique features of a phased array antenna include:
- Fast, wide angle scanning without moving the antenna.
- Adaptive beamforming
- Graceful degradation in performance over time
- Distributed aperture
- Multiple beams
- Potential for low radar cross section
This paper presents the historical development of array antennas. Reflectors have a rich history in optics that started thousands of years ago. Arrays, on the other hand, are only a little more than 100 years old, while phased arrays are only a little more than 70 years old. This presentation introduces the antenna array concept and provides a historical development of the array from the very beginning until the present with a peak into the future. Many examples and pictures will be presented.
Randy L. Haupt received the BSEE from the USAF Academy (1978), the MS in Engineering Management from Western New England College (1982), the MSEE from Northeastern University (1983), and the PhD in EE from The University of Michigan (1987). He is Professor and Department Head of Electrical Engineering and Computer Science at the Colorado School of Mines and was an RF Staff Consultant at Ball Aerospace & Technologies, Corp., a Senior Scientist and Department Head at the Applied Research Laboratory of Penn State, Professor and Department Head of ECE at Utah State, Professor and Chair of EE at the University of Nevada Reno, and Professor of EE at the USAF Academy. He was a project engineer for the OTH-B radar and a research antenna engineer for Rome Air Development Center early in his career. Dr. Haupt’s research interests and expertise spans a wide range of topics in electromagnetics that include theoretical, numerical, and experimental projects. He is co-author of the books Practical Genetic Algorithms, 2 ed., John Wiley & Sons, 2004, Genetic Algorithms in Electromagnetics, John Wiley & Sons, 2007, and Introduction to Adaptive Antennas, SciTech, 2010, as well as author of Antenna Arrays a Computation Approach, John Wiley & Sons, 2010. Dr. Haupt was the Federal Engineer of the Year in 1993 and is a Fellow of the IEEE and Applied Computational Electromagnetics Society (ACES). He is a member of the IEEE Antenna Standards Committee and the IEEE Antennas and Propagation Society representative to the National Academy of Sciences Union of Radio Science. He serves as an Associate Editor for the “Ethically Speaking” column in the IEEE AP-S Magazine.