Hi, I’m using QPA1019 in frequency range of 5-6 GHz, Vd - 23 V, Idq - 300 mA, Output CW power 36-38 dBm, Id 600-800 mA, temperature of top side of package is 80-100 deg C, but gain is about 18-22 dB. Is it normal? What can be wrong? I expected gain 25 dB.
Hello Dan. Is this your own design or using one of our EVB’s? Are you also using a cold plate to keep the base of the device cooler? The channel and bottom of the device are actually much warmer than the top of the package as the package has a high thermal resistance. Please see these related forum topic links below and contact our appsupport@qorvo.com email address for further support.