Design007 Magazine

34 The PCB Design Magazine • October 2017 answer NOW!" is probably good enough to make an engineering decision. Summary By using the Cannonball-Huray model, with copper foil roughness and dielectric material properties obtained solely from manufactur- ers' data sheets, a practical method of modeling high-speed channels is now achievable using commercial field-solving software employing Huray model. If you need an OK answer now instead of a PRACTICAL MODELING OF HIGH-SPEED BACKPLANE CHANNELS Figure 8: Simulated differential insertion loss (SDD21) shown on left and differential TDR (TDD11) shown on right. Figure 9: Channel simulation at 28 GB/s. Total length = 20.25".

• Cover
• Featured Content — Signal Integrity
• More Content
• Column — Keeping an Eye on Signal Integrity
• Short — Novel Circuit Design Boosts Wearable Thermoelectric Generators
• Feature — Signal Integrity: The Experts Weigh In
• Short — Researchers Invent Breakthrough Millimeter-wave Circulator IC
• Feature Column — When Do Traces Become Transmission Lines?
• Feature Column — Practical Modeling of High-Speed Backplane Channels
• Short — Hybrid Biological Cell Separations Technology for Lab-On-Chip Medical Devices.
• Feature Column — Causal Power Plane Models
• PCB007 Highlights
• Feature Interview — SiSoft Preparing for DDR5 Simulation Next Year
• Short — Scientists Develop Shape-Shifting 'Superhero' Robot
• Feature Interview — Insulectro Teams with Isola to Address Signal Integrity Needs
• Short — A Zero-Index Waveguide
• Feature Column — The Impact of Final Plated Finishes on RF PCB Performance
• Feature Column — Tangential Thoughts: Loss Tangent Values
• MilAero007 Highlights
• Column — Thermal Management for LED Lighting Manufacturers
• Short — Prototype Shows How Tiny Photodetectors Can Double Their Efficiency
• Top Ten Recent Highlights from PCBDesign007
• Career Opportunities Section
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• Advertiser Index and Masthead
• Back Cover