College - Author 1

College of Engineering

Department - Author 1

Electrical Engineering Department

Degree Name - Author 1

BS in Electrical Engineering

College - Author 2

College of Engineering

Department - Author 2

Electrical Engineering Department

Degree - Author 2

BS in Electrical Engineering



Primary Advisor

Dean Arakaki, College of Engineering, Electrical Engineering Department


The project includes design and fabrication of a high efficiency power amplifier for a student design competition held at International Microwave Symposium (IMS) 2023. Efficient power amplifiers are critical for base station communication requiring efficient use of available power. The final design optimizes power added efficiency (PAE) and linearity. The amplifier will operate at 2.45 GHz. Competitive PAE above 50%, and C/I above 30 dB is achieved by leveraging a Doherty class amplifier using accurate discrete CGH4006P transistor models to simulate an efficient and linear design. Unique design features include optimal transistor bias point selection and power split ratios between the auxiliary and main amplifiers. Equipment required for the project includes access to ADS software for design, a drill press, a tap and die set, and soldering equipment to manufacture the amplifier. Additionally, access to a vector network analyzer, spectrum analyzer, RF power meter, and frequency synthesizer is critical for the testing of the project. Materials required include GaN HEMTs, Rogers laminate blanks, and passive surface mount components.