RF High Speed PCB EMI Design Fundamentals (042)

This course enables practicing engineers and CAD technicians to develop design rules for RF and high-speed designs, choose an optimal design tool, and organize the design process to most efficiently execute the design that will insure circuit performance, and minimize costs and production time.

Recordings of this two day classroom course can now be viewed online at your convenience anywhere you have internet access. This course is composed of over 12 hours of recorded video presentation material available on-demand over the access period. The class has been professionally video recorded and edited into segments that can be played back on any device that supports a web browser and Vimeo video streaming (web browser is required to enable access to the video). During the 60 day access period, you can view the recordings as often as you like. You will also be able to download a PDF of the instructor's notes, so that you can follow along with the lecture.
 

Topics Covered

Fundamentals of Digital and RF Circuits

 • RF vs. high speed digital • Signal integrity • Properties of high speed logic gates • Pulse rise/fall times • Propagation time • Spectra of digital signals

Simple but very important physics

 • Electric fields, dielectrics, and capacitance • Magnetic fields, mu-materials, and inductance • Electromagnetics and boundaries • Frequency, wavelength, and phase • Resistance and Ohm's Law

Transmission Line Fundamentals

 • PCB traces • Velocity of propagation • Electrical length • Skin effect • Microstrip lines • Striplines • Coaxial • Coplaner • Line impedance • Transmission energy • Reflected waves • Terminations

Use of Transmission Lines

 • Transmission line or wire ? • Line impedance control • Transmission line systems • Line parasitics

Day Two

PCB Layout Strategies

 • Grounding via placement • DC Power distribution • "Ground" return • Ground bounce • Plane layers

PCB Materials and Fabrication

 • Dielectric materials • The basic fab process • Layer Stack-ups • Multi-layer parasitics • Dispersion

Sources of Interference

 • Cross talk • PCB inductors • Mutual inductance • Shield traces • Ribbon cables

EMI Issues

 • Current loop size • Bypass capacitors • CMOS special considerations • Ground discontinuity • Slew rate control

EMC Issues

 • Managing fields • Differential signals

Delay Matching

 • Harder than it looks • Serpentine line coupling

Design Rules

 • For low noise • For Signal Integrity • For low EMI • Notching ground planes • Danger of autorouting