Strict electromagnetic regulations require verification of emissions compliance of all wireless products. In the past, you could usually ensure compliance by examining typical spurious and harmonic emissions from a limited number of prototypes. However, current wireless technology has pushed the limits of semiconductor capabilities to the point where there is little margin between typical emissions and regulatory limits. As a consequence, it is no longer prudent to assume compliance based on testing a few prototypes. To guarantee compliance, it is often essential to measure emissions on a unit-by-unit basis in production.

This white paper provides a use case that illustrates the importance of harmonic measurements in modern wireless products, details several of the key challenges involved, and presents a newly available, cost-effective approach to harmonic measurement.

This white paper discusses:

• Use Cases for Harmonic Measurement
• Tradeoffs to Harmonic Measurement
• Obstacles for Harmonic Measurement
• Harmonic Measurement Solutions
• Challenges for Measuring Harmonics
• Devices that Make Harmonic Measurement Easier

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