CREATE-RF Status - National Defense Industrial Association
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Transcript CREATE-RF Status - National Defense Industrial Association
CREATE-RF Status
National Defense Industrial Association
February 1, 2011
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
CREATE-RF Development
Product Description
Product: SENTRI
SENTRI – Scalable Engineering Tools for RF Integration
What it is:
• Computer Aided Engineering Software for DoD Electromagnetic Applications
• Designed for High Accuracy – Full Wave (non-optical) Numerical Methods
‒ Finite Elements
‒ Boundary Integral
‒ Harmonic Expansions
• Designed for Extensibility, Maintainability, and Flexibility
‒ Not All Electromagnetic Applications are the same
‒ Need for Specific and Tailored Methods for Unique Applications
• Designed to Run on Wide Range of Computers
‒ from Engineering Workstations to High Performance Computers
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
CREATE-RF Requirement Summary
• Antennas on Air, Sea, Ground, And Space Platforms
• Communication, Navigation, Surveillance, Target Recognition,
Electronic Attack, Countermeasure, Etc.
Global Hawk
Computational Electromagnetics Applies to Almost All DoD Systems
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach Background
Benefits to DoD Acquisition Community
‘First-Pass’ Designs
• Develop High-Fidelity Codes to Model All Design Variables Reducing
Risk That Design Goals Will Not Be Met
Less Prototyping Faster and More Productive Engineering
• Hardware Prototyping is Time Consuming, Expensive, Provides Little
Insight to Physical Phenomena
New Concept Designs Higher Performance at Lower Cost
• Methods Allow for the Exploration of Entire Design Space
• Higher Performance Requires New Designs and Materials to be Explored
A Single DoD Vehicle can have More Than 100 Antenna Systems
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
CREATE-RF Development
Product Description
Challenge of Computational Electromagnetics
• Complex Geometries, Complex Material Application, Multi-Scale
Geometries
• Computationally Expensive for Accurate Full-Wave Analysis
• Electromagnetic Phenomena (Singularities, Resonances, Wide-Band)
Prof. Jin-Fa Lee
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
CREATE-RF Development
Product Description
Challenge of Computational Electromagnetics
Unknown Count with Notional Aircraft
10
1010
Problem Size (Unknowns)
VHF
UHF
L
S
C
X Ku K Ka
99
10
10
20M
88
10
10
5M
500M
1M
7
10
107
180M
• Length = 15.5 m
50M
200K
• Width = 8.9 m
6
10
106
• Height = 4.1 m
20K
55
10
10
• 100 MHz to 40 GHz
• 10 samples/λ
44
10
10
33
10
10
22
10
10
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3
10
10
4
10
10
Frequency (MHz)
55
10
10
Source: Riverside Research Institute
Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach
Product Roadmap
SENTRI at version 1.5
Antenna Modeling
• Patch, Notch, Horn, Spirals (Applications: Radar, Communication, GPS)
• Phased Array Antennas
• Cavity Backed Antenna (Approximate In-Situ Analysis)
Periodic Structures
• Frequency Selective Surfaces
• Circuit Analog Absorbers
• Metamaterials
• Infrared Filters / Absorbers
Microwave Circuits
• Power Splitting
• Material Measurement
• Filters
• Circulators
Radar Cross-Section Prediction
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Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach
Product Roadmap
Future Releases of SENTRI
Full End-to-End Analysis System
‒
‒
‒
‒
‒
Graphical User Interface
Material Database
Visualization of Solutions
Analysis Traceability
Optimization
Programmable System
‒ Software Release as a Application
Programming Interface for Further
Tailoring by End User
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach
Development Strategy
Rapid Design Codes
What Engineers Need
for Their Design Work
High Fidelity Codes
Design Optimization
Techniques Integrated with
Rapid Design / High-Fidelity
Codes
Making Engineers
Productive by
Automating Design Tools
Specialized Codes for
Particular Applications
Big Payoff – Solving
Problems that Others Can’t
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach
Development Strategy
Design Space
Rapid
Design
Methods
High
Fidelity
Methods
Optimal
Design
Rapid Design Methods Narrow Design Space
High Fidelity Methods Model All Variables, Optimal Design
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach
Development Strategy
Rapid Design Codes
What Engineers Need
for Their Design Work
High Fidelity Codes
Design Optimization
Techniques Integrated with
Rapid Design / High-Fidelity
Codes
Making Engineers
Productive by
Automating Design Tools
Specialized Codes for
Particular Applications
Big Payoff – Solving
Problems that Others Can’t
CREATE RF-John D’Angelo-NDIA
03/08/2011 Page-11
Distribution Statement A: Approved for public release; distribution is unlimited.
Development Approach
Development Strategy
Rapid Design Codes
What Engineers Need
for Their Design Work
High Fidelity Codes
Design Optimization
Techniques Integrated with
Rapid Design / High-Fidelity
Codes
Specialized Codes for
Particular Applications
CREATE RF-John D’Angelo-NDIA
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Making Engineers
Productive by
Automating Design Tools
Big Payoff Solving
Problems that Others Can’t
Distribution Statement A: Approved for public release; distribution is unlimited.
Application Examples
Microwave Circuit Analysis
Sanity Check - Code to Code Comparison: SENTRI vs. CST Microwave Studio
High Dielectric Coupled-Ring Filter
ε = 38
Air
(both)
Dielectric
Coax
ε = 2.4
Coax
ε = 2.4
Normal H on
symmetry plane.
Successfully Benchmarked w/ Independent Software Vendor Tools
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Application Examples
Metamaterials
Sanity Check – SENTRI vs. Published Results
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Distribution Statement A: Approved for public release; distribution is unlimited.
Application Examples
Metamaterials
Sanity Check – SENTRI vs. Published Results
SENTRI
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Application Examples
Printed Circuit Antennas
SENTRI vs. Commercial Codes
Radiating
slotline mode.
λ/4 reflector
y
Radial stub.
x
Exponential tapered
slot, cut into metal.
Near field is post-processed, could be
used as illumination for other problems.
- 10
- 20
- 30
Legend
(v1)
- 40
Return Loss (S11) dB
0
Stripline feed.
Solution
domain.
(v1.5)
4
5
6
7
8
Frequency, GHz
Successfully Benchmarked w/ Independent Software Vendor Tools
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Application Examples
Antenna Patch Array
A large printed array is an antenna-type problem that also benefits.
Gain (left) & field structure (right).
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Distribution Statement A: Approved for public release; distribution is unlimited.
Application Examples
In-Situ Antenna Analysis
5
0
-5
-15 -10
Metal
Isolated
In-situ
0
-50 -40 -30 -20 -10
-180
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E-plane
10
Metal
Gain, dBi
12’, 40 λ @ 3.3GHz, 78K / 96K FE/BI unknowns
ε = 1 (air)
Gain, dBi
ε = 1.8 (radome)
Isolated
In-situ
10
Lofted horn on notional missile.
H-plane
-120
-60
0
60
Angle off boresight, degrees.
Distribution Statement A: Approved for public release; distribution is unlimited.
120
180
Analysis Scalability
Running Large, High Fidelity Models
Big Computers Not
the Total Solution
Big Computers +
Algorithms that Scale
with Problem Size
Time to Solution
O(N3)
P
P
P
Desired endpoint:
asymptotically
competitive algorithms,
scaled well to next-gen
HPC platforms
Problem Size
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.
Conclusion
• Computational Electromagnetic Applications are Challenging
but with High Performance Computers and Advanced Numerical
Methods they can be Solved
• CREATE-RF Software Development
‒ For Use by DoD Government and US Defense Industry Engineers
‒ Allows for Specific Tailoring for Special Applications
‒ Tech-Transfer Mechanism for Next-Gen of Gov’t Engineers
• CREATE-RF Transfer to Military Industry
‒ Complete Analysis Package
‒ Runs on Workstations and High Performance Computers
‒ Programmable System for End User Extensibility
CREATE RF-John D’Angelo-NDIA
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Distribution Statement A: Approved for public release; distribution is unlimited.