TY - GEN
T1 - Optimization Design of Irregular Broadband Doherty Power Amplifier Based on 3-Port Output Combining Network
AU - Zhang, Heng
AU - Xia, Jing
AU - Zhou, Xinyu
AU - Ni, Zhongpeng
AU - Kong, Wa
AU - Ge, Xiaoshuai
AU - Zhu, Xiaowei
PY - 2024/10/24
Y1 - 2024/10/24
N2 - To meet the design requirements of the broadband high-efficiency Doherty power amplifier (DPA), a broadband DPA with an irregular matching structure was designed. By using the 3-port combining network design method to conduct an overall analysis and design of the output matching network, the complex steps of designing the main and auxiliary output matching networks of the traditional DPA are simplified. Additionally, a method combining irregular structures and optimization algorithms is used to optimize the output combining network and input matching network, respectively, providing more flexible and efficient impedance matching in the design. Measurement results indicate that within the 1.2-2.8 GHz operating frequency band, the designed DPA achieves a saturated output power greater than 43 dBm, with a saturation efficiency of approximately 50.1-73.4%, and an efficiency exceeding 50% at 6 dB back-off power.
AB - To meet the design requirements of the broadband high-efficiency Doherty power amplifier (DPA), a broadband DPA with an irregular matching structure was designed. By using the 3-port combining network design method to conduct an overall analysis and design of the output matching network, the complex steps of designing the main and auxiliary output matching networks of the traditional DPA are simplified. Additionally, a method combining irregular structures and optimization algorithms is used to optimize the output combining network and input matching network, respectively, providing more flexible and efficient impedance matching in the design. Measurement results indicate that within the 1.2-2.8 GHz operating frequency band, the designed DPA achieves a saturated output power greater than 43 dBm, with a saturation efficiency of approximately 50.1-73.4%, and an efficiency exceeding 50% at 6 dB back-off power.
U2 - 10.1109/IWS61525.2024.10713727
DO - 10.1109/IWS61525.2024.10713727
M3 - Conference article published in proceeding or book
SP - 1
EP - 3
BT - 2024 IEEE MTT-S International Wireless Symposium (IWS)
ER -