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Aerospace and Electronic Systems Society [AES010]
Microwave Theory and Techniques; Aerospace and Electronic Systems; Antennas & Propagation; Signal Processing; Electron Devices Societies
6:00 PM, Tuesday, 16 September
Amazing Breakthroughs in Phased-Arrays and Radars- - An Update
Eli Brookner, Ph.D., Principal Engineering Fellow, Raytheon Electronic Systems, Mail Stop 1-1-338, 528 Boston Post Road, Sudbury, MA 01776
This talk (and paper to be handed out) is an update of a previous talk on recent phenomenal breakthroughs. It will start with a brief summary of the previously presented breakthroughs which are: 1. The development of a low-power, low-cost missile seeker 35 GHz active phased-array ($35/element), 2. The achievement of low-cost single-chip T/R modules at X-band ($10/module) and at Ka-band using GaAs and SiGe, 3. The potential of low cost passive phased arrays using MEMS, 4. The ability to put on a single chip the receiver (or transmitter) circuitry (phase shifters, gain control, combiner) for multiple elements (8 or more) of a phased array using SiGe/BICMOS, 5. The new revolutionary higher power, high efficiency, wide band GaN technology, 6. The potential for high power, low-cost X-band phased arrays using commercial printed circuit boards, 7. The arrival of Digital Beam Forming (DBF) which makes feasible: (a) search with up to nearly 3 dB lower power and occupancy, (b) adaptive-adaptive array processing without the need of the inversion of a large matrix (equivalent to principal decomposition), (c) low antenna sidelobes on transmit and receive, 8. Practical applications of MIMO (Multiple-Input, Multiple-Output) to radars, 9. Ultra-Wideband Arrays, like 1.8 to 18 GHz, 10. The arrival of low cost solid state transmitters replacing magnetron transmitters for low cost commercial marine radars, 11. The development of amplifier gyratrons for radar. 12. 4" SAR, 13. 1 cm ISAR of satellites with Haystack upgrade.
The amazing new breakthroughs to be covered are:
Micromachining a Ka-band 4X4 array and its Butler beamformer on effectively one chip.
900 W GaN transistor at 2.9 GHz.
GaN switch to replace bulky and heavy ferrite circulator.
Elta EL/M-2488 4-faced 2500 elements/face S-band active array using digital beam forming at the element level, a MAJOR BREAKTHROUGH.
A very low cost 24 GHz phased array for the automobile blind spot radar. A phased array may be in everyone’s future!!
Adaptive nulling and space-time adaptive processing (STAP) without the need to invert a convariance matrix.
MIMO applied to OTH radar.
Eurofighter flight tests its active phased array.
Interferometric 3-D SAR obtained with 2 passes of single antenna SAR instead of with 1-pass with 2 antennas, UAVSAR.
Use of probing signal to increase the dynamic range of nonlinear amplifiers and A/Ds.
Invention of very small light modulators on silicon (Si) for use to communicate between cores processors on chip at 100 times the speed with 1/10th the power, 100’s to 1000’s core processors on chip, a supercomputer on a chip.
Invention of carbon transistors having potential for 1000X clock speed (terahertz vs GHz) of Si transistors. Also have lower resistance and better heat conduction.
Dr. Eli Brookner received a BEE from The City College of the City of New York in 1953, MEE and DrSc from Columbia University in1955 and 1962, all in electrical engineering.
He has been at the Raytheon Corporation since 1962, where he is a Principal Engineering Fellow. There, he has worked on the ASDE-X radar, ASTOR Air Surveillance Radar, RADARSAT II, Affordable Ground Based Radar (AGBR), major Space-Based Radar programs, NAVSPASUR S-Band upgrade, CJR, COBRA DANE, PAVE PAWS, MSR, COBRA JUDY, THAAD, Brazilian SIVAM, SPY-3, AEGIS, BMEWS, UEWR, Surveillance Radar Program (SRP), and COBRA DANE Upgrade. Prior to Raytheon, he worked on radar at Columbia University, Electronics Research Lab (now RRI), Nicolet, and Rome AF Radar Lab.
He received the IEEE 2006 Dennis J. Picard Medal for Radar Technology & Application "For Pioneering Contributions to Phased-Array Radar System Designs, to Radar Signal Processing Designs, and to Continuing Education Programs for Radar Engineers"; IEEE '03 Warren White Award; Journal of the Franklin Institute 1965 Premium Award for best paper; IEEE Wheeler Prize for Best Applications Paper for 1998.
He is a Fellow of the IEEE, AIAA, and MSS. He has published 4 books: Tracking and Kalman Filtering Made Easy, Wiley, 1998; Practical Phased Array Antenna Systems (1991), Aspects of Modern Radar (1988), and Radar Technology (1977), Artech House. He gives courses on Radar, Phased Arrays, and Tracking around the world (24 countries). Over 10,000 have attended these courses. He was banquet speaker and keynote speaker 6 times. He has published over 110 papers, talks, and correspondences. In addition, he has over 80 invited talks and papers.
This is a joint meeting sponsored by MTT, AES, AP, SP, and ED Societies.
The meeting will be held at the Lincoln Laboratory Cafeteria in Lexington, MA. Refreshments will be served at 5:30; the talk will begin at 6:00 pm. The talk is open to the general public.
Direction to Lincoln Laboratory Cafeteria from points north: Take I-95/128 south to exit 31B, Routes 4 & 225 towards Bedford. Stay in right lane and use the right turning lane (0.3 miles) to access Hartwell Ave at first traffic light. Follow Hartwell Ave to the end; take a left onto Wood Street (just before the AFB gate). Lincoln Laboratory entrance is 0.5 miles on right. The entrance to the cafeteria is on the lower level left of the main entrance
From points south: Take I-95/128 north to exit 30B, Route 2A west. Turn right on to Mass Ave (~0.4 miles). Turn left on to Wood Street (~0.4 miles) Lincoln Laboratory Wood Street entrance is 1 mile on left. The entrance to the cafeteria is on the lower level to the left of the main entrance
For more information contact:
Grace Chu, Tyco Electronics, email:chus@tycoelectronics.com;
Jeremy Muldavin, MIT Lincoln Laboratory, email: Muldavin@ll.mit.edu,
Eli Brookner, Raytheon, email: eli_brookner@raytheon.com,
Bradley Perry, MIT Lincoln Laboratory, email: bperry@ll.mit.edu;
and Joseph Yeh, MIT Lincoln Laboratory, email: jyeh@ll.mit.edu
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Updated: August 18, 2008.