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美国Northrop Grumman公司的研究人员研制出一种在42-46GHz的Q波段可输出2.8W(+34.5dBm)的高效率单片功率放大器。当工作电压5V、工作电流为250mA/mm器件周长时,该功放的功率附加效率为23-26%;当偏压+5VDC、电流125mA/mm时,其最大功率附加效率为24-29%。为了保持高功率和高功率
Researchers at Northrop Grumman in the United States have developed a high-efficiency monolithic power amplifier capable of delivering 2.8W (+ 34.5dBm) in the 42-46GHz Q-band. The power added efficiency of this amplifier is 23-26% when the operating voltage is 5V and the operating current is 250mA / mm. The maximum power added efficiency is 24-29% when the bias voltage is + 5VDC and the current is 125mA / mm. In order to maintain high power and high power