Digital Array Radar Technology for MPAR

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Low-Cost Array Concept Traditional Hybrid Radar Module ~ Digital Backend Advanced Integration A/D D/A ~ SiGe GaN ~ Traditional electronics Image from Eurofighter’s radar http://www.airpower.at/news06/0922_captor-e/index.html Massively integrated SiGe chip transceivers High power GaN MMIC Want low cost integration without sacrificing performance. Key technologies are GaN, SiGe, and digital backend integrated using traditional electronics manufacturing techniques Planar “laptop-like” integration of modules and antenna 5/2/2011 19-May-11
Compound Semiconductor Materials on Silicon (COSMOS) Program Objective: Heterogeneous integration all the way to the transistor scale • Enable materials selection within circuits – without loss of transistor performance • Exploit existing SOA CMOS infrastructure & integration levels – without process modification DoD Benefits • Achieve higher functional density: dense integration of analog, mixed-signal, & digital electronics • Enable circuits with lower dissipated power & far higher I/O throughput Flip-chip What else may impact cost? Today COSMOS Vision Reflow solder bumps Chip size ~1 mm 200 μm pitch Heterogeneous integration exists only on a very coarse scale – and not in the signal path Compound Semiconductor (CS) “Chiplets” Si CMOS Allow the circuit designer to select the optimal transistor technology everywhere in the circuit
Page 1 and 2: Digital Array Radar Technology for
Page 3 and 4: Introduction: Digital Array Radar P
Page 13 and 14: Future Digital Arrays • Lower cos
Page 15 and 16: MPAR Needs • Programmability •
Page 17 and 18: Cost • FPGAs subject to the same
Page 19 and 20: What Was State of the Art? Insert t
Page 21 and 22: ifixit.com 21
Page 23: The Challenge for a Low Cost Radar
Page 27 and 28: Competition • By decoupling from
Page 29 and 30: Initial DAR Demonstrator 16-Element
Page 31 and 32: Initial DAR Demonstrator Two Channe
Page 33 and 34: Initial DAR Demonstrator Digital Ba
Page 35 and 36: DAR Digital Beamforming • Verifie
Page 37 and 38: Army DAR Project Digital Backend
Page 39 and 40: 5/2/2011 Adaptability 39 8 4 7 4 6
Page 41 and 42: 5/2/2011 Adaptability 41 Initial T
Page 43 and 44: Adaptability K T R T T 1 2 3 4 R 1
Page 45 and 46: Xcvr. Header Xcvr. Header Xcvr. Hea
Page 47 and 48: Xcvr. Header Xcvr. Header Xcvr. Hea
Page 49 and 50: GaN HPA Integration on RF Antenna P
Page 51 and 52: DAR Polarimetric Testbed V H • Ap
Page 53 and 54: Scattering Demonstration 45° Tx Rx
Page 55 and 56: Scattering Demo Initial Results C T
Page 57 and 58: Receive Pattern Demo • Use mutual
Page 59 and 60: Receive Pattern Demo • Use mutual
Page 61 and 62: Large Array Simulations • Resulti
Page 63 and 64: Large Arrays with Random Errors Wor
Page 65 and 66: Large Arrays with Random Errors Wor
Page 67 and 68: Large Arrays with Random Errors 5/2
Page 69 and 70: Potential Re-Configurable HDB Capab
Page 71 and 72: Current Developments • DAR 1.0 -
Page 73 and 74: Current Developments • DAR 1.0 -
Page 75:
Initial Conclusions and Plans • P
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Digital Array Radar Technology for MPAR

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