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Three Best Practices for Optimizing EVM Measurements for Wideband Signals

White Papers

Wireless technologies increase signal bandwidth and use higher-order modulation schemes to achieve faster data rates. However, wider bandwidth and higher-order modulation schemes introduce challenges related to link quality requirements at millimeter-wave (mmWave) frequencies. Engineers need to take extra care to evaluate radio-frequency (RF) components and devices accurately.

 

Error vector magnitude (EVM) measurements provide powerful insight into the performance of digital communications transmitters and receivers. EVM and related measurement displays are sensitive to any signal flaw that affects the magnitude and phase trajectory of a signal for any digital modulation format.

 

This white paper discusses three best practices for accurately making and optimizing EVM measurements.

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