Does a Differential Pair Need a Return Plane?

A differential pair is any two transmission lines. When each transmission line has a return plane, its pretty clear how the differential impedance is related to the geometry. But what if there is no... [more]

Reverse Engineering PCBs: How to Recreate a Lost Design

Maintaining a product is very difficult when: The source files aren’t available Only Gerber files and maintenance documents are available Making a revision to a company-owned product with no... [more]

Designing and Analyzing High Frequency Interconnects

High frequency PCB designs carry a unique set of challenges due to concentration of signal power in a narrow bandwidth. To design high frequency interconnects, designers must consider an entire... [more]

Power Delivery System Design

With the advent of ICs with multiple power rails at very high currents, the design of the power delivery system in a modern product is often more difficult than routing the PCB to ensure good signal... [more]