introduction to awr design flow and new features for...
TRANSCRIPT
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Introduction to AWR Design Flow and
New Features for V10
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What’s New In Version 10
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iMatch –
Matching Network Synthesis
• Matching Network Synthesis – Tight integration with AWR tools
– Excellent starting point for further AWR analysis –
• EM verification and EM synthesis
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VSS / LabVIEW Integration
• LabVIEW VI’s can be instantiated in system diagrams
– Signal Processing
– Modulated waveform
creation and
demodulation
– Comparing
simulated and
measured data
– Created behavioral
models
Measurements include
ACPR, EVM
Bit Error Rate, etc.,
Co-design with VSS
and LabVIEW
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Circuit Envelope Simulation
• Arbitrary circuit schematics in VSS for DPD / envelope tracking
• Monitor or control node current, node voltage, or PAE
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SYMMIC Thermal Simulator
• Design-state thermal
analysis of MMIC PA’s
• Thermal “stackups”
defined by process
simplifying setup for new
circuits
• Generate thermal
impedance networks for
transient simulation
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Antenna Magus Interface
• Antenna evaluation,
selection and synthesis
• Searchable database of
antennas
• Synthesized planar
antennas can be directly
exported to MWO/AXIEM
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Analyst 3D FEM Solver
• Finite Element, Open Boundary
3D Solver
• Over a Decade in Development
in Collaboration with the Dept of
Energy and DoD.
• Employed at Nearly all US
National Labs and Accelerators
as Well as Several Commercial
Suppliers of X-Ray Equipment
• Highly Distributed, Very High
Capacity
• Fully Integrated into AWR
framework
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Analyst Integration
• Goal: Make 3D-EM Simulation
Easier
• Analyst and AXIEM will both take
advantage of the AWR Extract
Flow.*
• Same Schematic and Schematic-
Layout in MWO as always
• 3D Pcells Setup Automatically
*The extract flow
for Analyst will be
supported post
AWR2012 release
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Analyst Integration Continued
• Supports extruded 2D shapes and 3D pcells today
• Support arbitrary 3D documents in future release
GaAs
die
Encapsulant
Rogers 4003
Port 1 Port 2
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Other V10 Improvements
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Microwave Office: Highlights
Key New Features
• Floating windows
• Project import
• Yield analysis and optimizers
• Layout setup wizard
• New example design kits
• RF aware short checker
• ADS Schematic Importer
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AXIEM: Highlights
Key New Features
• Asynchronous simulation
• Datasets
• Yield and optimization
• Improved de-embedding
• Rule-based shape modifiers
• User-defined X-models
• Frequency dependent
materials
• New licensing model
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AXIEM Geometry Simplification
• A Plated Line in MMIC(no Simplification)
• Etch Layer Expanded for Easy Visualization
26/11/2012 15 © 2011 AWR Corporation. All rights reserved.
Insets will Increase Unknowns # Unknowns 3669
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AXIEM Geometry Simplification
• Shape Pre- Processor optimizes the geometry
before simulation
26/11/2012 16 © 2011 AWR Corporation. All rights reserved.
Insets eliminated by Axiem # Unknowns 1320
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AXIEM Geometry Simplification –
Example 2
• A line Connected to Top Plate of Cap
• An airbridge is created by metal being deposited
over a layer of some material that is then etched
away
Airbrige(Auto Generated by
Bridge code in Layout) EM Extracted 3D View(No Simplification)
26/11/2012 17 © 2011 AWR Corporation. All rights reserved.
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AXIEM Geometry Simplification –
Example 2
• Geometry Simplification allows auto Air Bridge Creation
• The rules can do many powerful things such as create
layers based on the geometry
26/11/2012 18 © 2011 AWR Corporation. All rights reserved.
• Rules Part of MMIC
PDK (no end user
input required)
• Can Be Easily
customized
• Automatically Applied
from AWR’s EXTRACT
Flow
• Preview Mode Allows
Quick Visualization and
De-bugging
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Rules Based Simplification -
Advantages
• Rules Support
– Intelligent Detection of Caps(to maintain Area and
Prevent Snapping) and Resistors
– Boolean and resize Operations
– Shape Snapping
– Intelligently remove vertices with Extreme Angles
– Circle and Circle Arc Re-Shaping
– Can Distinguish Between Ground and Trace Shapes
– Merge and Reshape Vias and Via Fields
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Slide
More Design features:
EM Sweeps
26/11/2012 20 © 2011 AWR Corporation. All rights reserved.
EM Structure’s layouts
can now be swept and
then used in schematics
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Geometric Simplification Example –
Two Stage AMP
• No Simplification – # Unknowns 35316
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Geometric Simplification Example –
Two Stage AMP
• With Simplification - # Unknowns 26772
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Connectivity Checker
Connectivity checker allows users to color code
DC connections in their 2 and 3-D layouts
Normal Layout View
Trace All DC Connections
Trace one DC connection at time
All Connections 3-D 26/11/2012 23 © 2011 AWR Corporation. All rights reserved.
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Visual System Simulator: Highlights
Key New Features
• Radar library
• Envelope simulation
• RFB spreadsheet wizard
• Nonlinear co-simulation block
passed parameters
• LabVIEW co-simulation
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Nonlinear Behavioural Modelling
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Introduction
• Modeling domains
• Modeling effects
• Model types
• Simulator compatibility
• Other considerations
• Conclusions
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Modeling Domains
• Circuit Level – Harmonic Balance, transient, and circuit envelope
– Models formulated in time or frequency domain
– Voltages, currents, power, etc.
– Microwave Office
• System Level ‒ Generally fixed time step, time domain (data flow)
‒ One or more samples in, one or more samples
out
‒ EVM, ACPR, etc.
‒ Visual System Simulator
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Modeling Effects
• Linear Memory
– Frequency dependant
behavior
– Caused by linear
capacitances and inductances
• Nonlinear Memory
– Previous operating condition dependant behavior
(e.g. Hysteresis)
– Caued by interaction of low frequency mixing
products with bias circuitry, self heating effects,
trapping, etc.
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Model Types
Compact Model
No
Memory
Linear
Memory
Non-Linear
Memory
Linear Weakly Nonlinear Strongly Nonlinear
S-Parameters
TDNN Behavioral
Volterra
Polyharmonic Model
Me
mo
ry M
od
eli
ng
AM/AM & AM/PM
Operating Region
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System Level
Simulation
Steady State Circuit
Simulation Only Circuit Level Simulation
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Simulator Compatibility
Compact Models
System Level
Simulation
Poly Harmonic
Distortion Model Discrete Time
System Model Model
Types
Simulation
Types
Steady State
Circuit Level
Simulation
Time Domain
Circuit Level
Simulation
Behavioral Model
Extraction
*
Circuit/System
Co-Simulation
**
* A system model can be extracted, but is equivalent to an AM/AM & AM/PM model
** Currently, this path does not model linear or non-linear memory effects
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Extraction and Distribution
• Measurement Time
– Time to generate data needed to generate model
– Can be simulated or hardware measurement based
• Model Extraction Time
– Time to generate the model from measurement data
• Simulator Evaluation Time
– How quickly model evalutes in intended simulators
• File Size
– Generated model file size
– Important for model distribution
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Extraction and Distribution Details
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Behavioral Modeling Conclusions
• Simulation tool support is important
• Polyharmonic distortion models in the real world
• System level modeling rapidly emerging
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Product Roadmaps
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Microwave Office Roadmap
Proposed Features
• Datasets for circuit simulators
• Asynchronous simulation for
circuit simulators
• Circuit Envelope improvements
• Improved board tool integration
(Zuken, Mentor, Cadence, etc.)
• General performance
improvements
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EM Roadmap
Proposed features
• Distributed Simulation
• Problem Decomposition
• Matrix
• Frequency
• Parametric
• Yield / Opt Trial
• Thin Vertical Walls
• Arbitrary 3D Editor
• General Performance
Improvements
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Visual System Simulator Roadmap
Proposed Features
• Datasets
• LabVIEW Integration Improvements
• Model Extraction
• Communications Libraries
• Signal Processing
• General Performance
Improvements
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Conclusions
• V10 Release
– Circuit Envelope Simulation
– 3D EM and Thermal Simulation
• Nonlinear Behavioral Modeling
– Read and Write X-parameters
– LabVIEW and TDNN
• Roadmap
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Questions?
26/11/2012 40 © 2012 AWR Corporation. All rights reserved.