Brian Walker of Copper Mountain Technologies

Achieving precise S-parameter measurements at mmWave frequencies requires more than standard calibration techniques. This webinar explores how to maximize accuracy using TRL calibration, manage drift and residual directivity, and apply time-domain gating to reduce reflection ripple. It also addresses the impact of waveguide dispersion on phase measurements, including practical methods for calculating cutoff frequency and designing accurate phase shims. Attendees will leave with clear, actionable guidance for improving measurement confidence in demanding mmWave environments.

Biography:

Brian Walker is the Senior Scientist, RF Applications, at Copper Mountain Technologies. He helps customers resolve technical issues and develops new solutions for VNA applications in test and measurement. Previously, he was the Manager of RF design at Bird Electronics, where he directed a team of RF Designers and created new and innovative products. Prior to that, he worked for the Motorola Component Products Group and was responsible for the design of ceramic comb-line filters for communications devices. Brian is a Senior Member of the IEEE, graduated from the University of New Mexico, has over 40 years of RF Design experience, and has authored 3 U.S. Patents.