A 2.4 GHz Fully Integrated, 50-Ohm Matched Power Amplifier for Bluetooth Application

A 2.4 GHz power amplifier (PA) for Bluetooth application is designed in TSMC 0.18 um RF CMOS process using Advanced Design System from Keysight. Across the operating frequency range of 2.4 GHz to 2.483 GHz, the PA exhibits a 12 dB gain with less than 0.5 dB fluctuation. At the center frequency of 2.44 GHz, the PA presents a maximum output power of 18 dBm with a corresponding PAE of 50%. Under the output power from -20 dBm to 15 dBm, this PA shows better than 22.5 dBm OIP3. The proposed PA is fully integrated and 50-Ohm matched, which can directly fit into the RF front-end system.