Tutorial 5.5
Phased Array Design and Applications

Dr. Leonard Yorinks - Lockheed Martin, MS2, Mr. Christopher Kebalo - Lockheed Martin, MS2, Mr. John Fraschilla - Lockheed Martin, MS2

Thu, 29 April 2004, 1:30 PM - 5:30 PM

Abstract

Phased array antennas an enabling technology for modern radar systems, provide the diversity needed to raise the performance of radar systems far beyond the capabilities of rotating antenna radars of the past. Today?s modern phased arrays incorporate active components for high average transmit power, superior low noise performance, and independent element level phase and amplitude control. They can operate over narrow-band and octave-bandwidths, exhibit polarization diversity, and produce single and multiple beams. Multi-function phased arrays can perform radar, communication, and EW operations simultaneously. With the development of digital beamforming techniques, phased array technology will again take a significant leap to provide the functionality required by tomorrow?s radar missions.

This tutorial will focus on the basic principles of phased array antennas including phase and time-delay steering, grating lobes, antenna errors, beam shaping and synthesis, radiating elements, and feed designs. The course will then explore the design of active phased arrays including TR Modules, MMIC device capabilities, stability, antenna calibration, and required antenna support systems. Applications of phased array technology will be discussed with examples from current and future systems. Finally, digital beamforming, synthesis, applications, and technology advances will be explored.

Bios

Leonard Yorinks has over thirty-eight years experience in the design and management of diverse antenna and microwave products including active and passive phased arrays, reflector antennas, T/R modules, and passive components. Dr. Yorinks has led a number of multi-million dollar solid state phased array IR&D programs and currently is the T/R module integrated product team lead for the VSR antenna development program for DD(X). He serves as technical consultant on a wide variety of programs and is often involved in new business pursuits.

Mr. Christopher Kebalo - Lockheed Martin, MS2

Christopher Kebalo has over 19 years experience in the design and development of phased arrays and phased array components including passive and active phased arrays, beamformers, phase shifters, and T/R modules. He has worked on a number of advanced antenna programs including Aegis/SPY-1B/D, DTASS, SPY-1F, SBAR, and most recently, the DD(X) VSR. Mr. Kebalo was responsible for the upgrade of Lockheed Martin?s Nearfield Test Facilities. He is currently the Manager of Microwave and RF Systems at Lockheed Martin Maritime Systems and Sensors in Moorestown, NJ. Mr. Kebalo holds BS and MS degrees in Electrical Engineering from Drexel University, Philadelphia, PA

Mr. John Fraschilla - Lockheed Martin, MS2

John Fraschilla has more than eighteen years of experience in the development of active phased array antennas and the components contained within them. From 1984-2000 he worked at Raytheon Systems Company, El Segundo CA (Formerly Hughes Aircraft Company) on airborne radar systems. During this time Mr. Fraschilla worked on various advanced technologies programs for active electronic scanned antennas such as JSF, F-18 AESA, UCAV, and SBR. For the last 4 years he has been a Principal Member of the Engineering Staff at LM-MS2 Moorestown where he has worked on S-Band Advanced Radar (SBAR) technology for future naval platforms. During this time he has served as the Lockheed antenna lead for the Digital Array Radar 6-Month Study. Mr. Fraschilla holds 5 patents related to RCS and radiator element design and has published a number of technical papers related to radiator design and digital beamforming. He holds BS and MS degrees in Electrical Engineering from Polytechnic University, Brooklyn, NY.