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Articles by Patrick Naraine, Skyworks Solutions Inc.

Predicting the EVM Performance of WLAN Power Amplifiers with OFDM Signals

This article details a method of predicting the error vector magnitude (EVM) of wireless local area network (WLAN) power amplifiers (PA). It starts with a definition and explanation of EVM, and explains the EVM specification as defined by the IEEE 802....
Patrick Naraine, Skyworks Solutions Inc.
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The 802.11a/g WLAN standards stipulate the use of orthogonal frequency division multiplexing (OFDM) signals with M-QAM symbols modulation, where M can be as high as 64. These wideband digital modulations demand PAs with high linearity, due to the inherent high peak-to-average ratio (PAR) of these signals. This article describes...
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