Day: 27 April, 2026

Why Do RF Power Amplifiers Need Isolators? A Real VSWR Protection Case.

Ever watched a costly power amplifier fail due to unexpected reflections? This preventable setback can derail projects. A simple component, the isolator, is the key to protecting your investment. RF power amplifiers need isolators for protection against high VSWR. An isolator allows the signal to pass from the amplifier to the load but absorbs reflected […]

How do network analyzers measure S-parameters?

Finding the S-parameter formulas in textbooks too abstract? This lack of clarity can keep you from fully grasping RF measurements1. Everything clicks once you learn how a Vector Network Analyzer (VNA)2 operates. A Vector Network Analyzer (VNA) measures S-parameters3 by sending a known signal to a device’s port. It then measures the reflected signal from […]

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