AN Total Radiated Power and HarmonicsAN RFMD APPLICATION NOTETotal Radiated Power (TRP) and HarmonicsRFMD Worldwide Applications OverviewTesting of mobile devices is becoming increasingly more stringent and, as a result, a new test is now being standardized to further test performance. As this new type of testing, over-the-air (OTA) testing, is developing, an important parameter, Total Radiated Power (TRP), is becoming increasingly important. Classically, the output power of a power amplifier (PA) has been measured and evaluated into a 50 Ω load impedance; however, the load impedance presented to the PA by the antenna of a mobile device can vary dramatically in real world applications. The cellular industry has realized that a better evaluation of the RF performance of a mobile device can be achieved through OTA testing. ……
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