Dr. Sudhakar Rao
IEEE LIFE FELLOW
Technical Fellow, Northrop Grumman
Sudhakar K. Rao received Ph.D degree in electrical engineering from Indian Institute of Technology Madras in 1980. During the period 1976-1977 and 1980-1981 he worked at ECIL, Hyderabad and LRDE, Bangalore on reflector antennas and phased array antennas for airborne applications. He worked as a post-doctoral fellow at University of Trondheim, Norway and then as a research associate at University of Manitoba during 1981-1983. During 1983-1996, he worked at Spar Aerospace Limited (now MDA), Montreal, Canada, as a Staff Scientist and developed advanced antennas for several satellite communications. From 1996-2003 he worked as Chief Scientist/Technical Fellow at Hughes/Boeing Satellite Systems and developed multiple beam antennas and reconfigurable beam payloads for commercial and military applications. During the period 2003-2010, he worked as a Corporate Senior Fellow at Lockheed Martin Space Systems and developed antenna payloads for fixed satellite, broadcast satellite, and personal communication satellite services. He is currently a Technical Fellow at Northrop Grumman Aerospace Systems, Redondo Beach, CA working on advanced antenna systems for space & aircraft applications for next generation payloads.
Dr. Rao developed antenna payloads for more than 70 satellites including first mobile satellite M-Sat, first Direct Broadcast Satellite with local channels (DirecTV-4S), first multiple beam antenna at Ka-band for personal communications satellites and first V/W band satellite antenna. His work on development of radiation templates for complex radiation patterns of satellite antennas for interference analysis was adopted and recommended by the International Telecommunication Union (ITU)/CCIR in 1992 as the world-wide standard for satellite manufacturers and operators. He authored over 170 technical papers and has 46 U.S patents. He authored and co-edited three text book volumes on “Handbook of Reflector Antennas and Feed Systems” that were published in June 2013 by the Artech House.
Dr. Rao is an IEEE Life Fellow and a Fellow of IETE. He received several awards and recognitions that include 2002 Boeing’s Special Invention Award for series of patents on satellite antenna payloads, 2003 Boeings’ technical achievement award, Lockheed Martin’s Inventor of Technology award in 2005 & 2007, IEEE Benjamin Franklin Key Award in 2006, Delaware Valley Engineer of the Year in 2008, and Asian American Engineer of the year award in 2008. He received IEEE Judith Resnik Technical Field Award in 2009 for pioneering work in aerospace engineering. He is the recipient of the IETE’s 2015 Prof. S.N. Mitra Memorial award and the Distinguished Alumni Professional Achievement Award from his almamater National Institute of Technology, Warangal, India in 2016. Dr. Rao recently received IEEE Region 6 Outstanding Engineer Award for 2017 and the 2017 Northrop Grumman’s President Award for innovations. He received best reviewer recognition by the IEEE Transactions on Antennas & Propagation Journal for the years 2014 and 2015. Dr. Rao is appointed as the Distinguished Lecturer by the IEEE APS for a three year period (2014-2016) and before that he served as the AdCOM member for IEEE APS during 2011-2013. He was the Chair for the IEEE APS “Industry Initiatives Committee” during 2011-2015, IEEE APS Fellow Evaluation Committee member from 2015, Associate Editor for the IEEE Antennas & Propagation Magazine’s “Antenna Applications Corner”, Associate Editor for the IEEE Transactions on Antennas & Propagation, Special Session Organizer/Chair for the last six IEEE APS/URSI Symposia, and Technical Program Committee member for IEEE APS/URSI Symposia since 2004.
Keynote Talk: Title and Abstract
Satellite Communication Antennas – Challenges for Next Generation Payloads
Satellite communications field has recently introduced several new satellite services. These include local-channel broadcast for direct broadcast satellite service (DBS), high capacity K/Ka-band personal communication satellite (PCS) service, hosted payloads, mobile satellite services using very large deployable reflectors, high power hybrid satellites etc. All these satellite services are driven by the operators need to reduce the cost of satellite and pack more capability into a single satellite. Antenna sub-system design, mechanical packaging on the spacecraft and RF performance are very critical for these satellites. This talk will cover recent developments in the areas of antenna systems for FSS, BSS, PCS, & MSS satellite communications. Advanced antenna system designs for contoured beams, multiple beams, and reconfigurable beams will be presented. Multiple beam antenna (MBA) concepts and their advantages compared to conventional contoured beams will be introduced.
Next generation satellite systems for navigational and high frequency payloads require advanced antenna systems to meet the demanding requirements in terms of generating plurality of beams from a single antenna, beam re-configurability, multiple band operation, low-loss antennas, and stable phase center with frequency for better location accuracy. The talk will focus on existing technologies, limitations, advantages of the next generation payloads, RF performance and hardware implementation challenges. A dual-band antenna working at very high frequencies for future payloads capable of a ten-fold increase in satellite capacity will be discussed. Relevant antenna designs and hardware aspects will be presented.
Dr. Sudhakar Rao, FIEEE, FIETE
Technical Fellow, Engineering & Global Products Division
Northrop Grumman Aerospace Systems
1 Space Park Drive, Mail Stop: ST70AA/R9-1438E
Redondo Beach, CA 90278, USA
Phone: 1-310-813-5405 (Work) & 1- 215-500-9655 (Mobile)