5G/IoT Terminal Antenna PCB Checklist — What to Review Before SAR Certification Automated SAR test platforms are compressing the time between a design freeze and a certification result, which leaves less room for antenna, grounding, and placement problems to surface…
110-145GHz PCB Calibration Boards — TRL/LRM Coupons and Connector Launch Design Test and measurement equipment covering 110-145GHz and beyond is moving from lab waveguide setups toward repeatable coaxial test links using 0.8mm and 1.0mm connectors. That shift puts the PCB…
UWB Positioning Module PCB Design — Antenna Keepout, RF/Digital Isolation & Clock Noise Control UWB positioning modules for automotive digital keys, precise positioning, and industrial asset tracking run at 6-8GHz — far below 77GHz radar — but still need centimeter-level…
RF and Digital Mixed-Signal PCB Stackup Design: Isolation Rules for Tunable Filter MMIC Evaluation Boards (20MHz–26GHz) Digitally tunable RF filters and switched-filter-bank MMICs are increasingly used to cover wide instantaneous bandwidths — from tens of MHz up into the mid-20GHz…
Massive MIMO Base Station PCB — Thermal Density and Signal Integrity for Active Antenna Panels Massive MIMO active antenna units integrate power amplifiers, antenna elements, and beamforming control for dozens to hundreds of channels into a single panel — a…
RF and mmWave Test Fixture PCB Design — Probe Pad Geometry and De-Embedding Structures A test fixture PCB exists purely to characterize a device or material under controlled, known conditions — its own electrical properties must be understood precisely enough…
