Is It Actually 50 Ω? How PCB Dielectric Changes Affect Impedance
Changing PCB materials can change impedance, signal delay and loss. See a worked example using published dielectric data and learn how a VNA helps verify your board.
Read article ↗RFHEXBLOG
BLOG
Explore RFhex product updates and practical articles about vector network analyzers, S-parameter measurement, calibration, antennas, filters, cables, and RF hardware.
Reading your first S11 measurement
Return loss, VSWR, and reflection coefficient are three ways of writing down the same number. Here is how they relate, and what actually counts as a good result.
Read article ↗Building an Affordable Vector Network Analyzer Up to 26 GHz
RFhex is developing a professional-grade, host-connected two-port VNA up to 26 GHz at an accessible price. Architecture, calibration, and verification plan.
Read article ↗