Total Radiated Power and Harmo...

AN Total Radiated Power and HarmonicsAN RFMD APPLICATION NOTE

Total Radiated Power (TRP) and Harmonics
RFMD Worldwide Applications Overview
Testing 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.