Explore engineering decisions from material selection to a tested circuit board. Each article connects a specific design problem with material references, calculation tools and a practical verification step.

Reliability

Adding RF Performance Checks to a Reflow-Simulation TestPlan RF PCB insertion-loss checks before and after reflow stress, with representative coupons, controlled fixtures and agreed acceptance limits.16 Oct 2026

Communications

A Wideband SDR Chip on a Narrowband PCB: Checking the Balun and RF InterfaceCheck SDR PCB balun bandwidth, matching and layout with a hypothetical loss budget and a board-level test checklist before choosing a Rogers laminate.15 Oct 2026

Measurement

Designing PCB TRL Standards for a Defined Frequency SpanPlan PCB TRL line lengths for a defined band with a worked 2-18 GHz coverage example, reference-plane checks and a calibration-standard release worksheet.14 Oct 2026

Manufacturing

Does Your Mixed-Material Stack Need Desmear Even If the RF Core Does Not?Review desmear, PTFE activation and plated-hole evidence for mixed-material Rogers PCB stacks, with a hole-family matrix and fabrication handoff checklist.13 Oct 2026

Amplifiers

LNA Noise-Figure Measurements: Removing PCB Launch and Fixture LossSeparate LNA noise figure from PCB launch and fixture loss. Define reference planes, check loss corrections and report uncertainty with a worked example.12 Oct 2026

Microwave Circuits

Separating Resonator Detuning from Coupling Error in a Hairpin FilterDiagnose hairpin filter frequency shift, coupling and feed-loading errors with controlled EM sweeps, a worked example and a fabrication review checklist.11 Oct 2026

Material Properties

Which Design Dk Belongs in the Model After You Change Core Thickness?Update a Rogers PCB material card after a core-thickness change. Check Design Dk conditions, foil effects, geometry and coupon evidence before release.10 Oct 2026

Radar Antennas

Wall or Ceiling Mount: Choosing the PCB Antenna Aperture for an Occupancy RadarCompare wall and ceiling mounts for an occupancy radar PCB using a room-angle worksheet, antenna coverage checks, housing review and acceptance tests.9 Oct 2026

Rf Layout

Reusing an Edge-Launch Connector Footprint on a Different Rogers StackupCheck an edge-launch connector on a new Rogers stackup with a parameter drawing, launch model, A/B coupon plan and practical release checklist.8 Oct 2026

Material Selection

When Does a Short RF Trace Justify a Laminate Upgrade?Estimate whether a shorter RF connection or a lower-loss laminate improves your path budget, with a worked example and a prototype measurement checklist.7 Oct 2026

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