Abstract

The focus of this paper is to design the input and output matching networks of a power amplifier to achieve broadband and high efficiency performance which is mandatory for 5G NR operations. The Real Frequency Technique - RFT has been utilized in the design for the synthesis of broadband matching networks which is good for broadband matching. A 10-Watt, 3.2-3.9GHz power amplifier is designed that covers the 5G NR n78 (C-Band, 3.3-3.8GHz) spectrum. The input matching network and output matching network are extracted using the RFT parametric approach employing lumped components. Then, the lumped elements are converted into distributed elements using microstrip line inductance and capacitance equivalences. Once the networks are designed, the power amplifier (PA) stage is completed with the inclusion of bias feeds, and performance is validated. Finally, the PA layout has been obtained for fabrication.