In this contribution, the design of an uneven AB-C Doherty power amplifier (DPA) in GaN technology, implementing a Class F configuration for the Main device, is presented. Theoretical support will be given to understand why and how some relevant DPA's design parameters have to be carefully selected when a Class F strategy is adopted. Moreover, a comparison between the output performance obtained from a simple Tuned Load DPA and the here presented Class F DPA will be given. From the experimental results, the realised Class F DPA achieved, in an Output Back-off of 6dB, an average drain efficiency of 50% with a saturated output power of 3.2W at 2.14GHz.
Colantonio, P., Giannini, F., Giofre', R., Piazzon, L. (2009). Efficiency improvement in Doherty power amplifier by using class F approach. In Proceedings of the 4th european microwave integrated circuit conference, EuMIC 2009 (pp.17-20).
Efficiency improvement in Doherty power amplifier by using class F approach
COLANTONIO, PAOLO;GIANNINI, FRANCO;GIOFRE', ROCCO;PIAZZON, LUCA
2009-09-01
Abstract
In this contribution, the design of an uneven AB-C Doherty power amplifier (DPA) in GaN technology, implementing a Class F configuration for the Main device, is presented. Theoretical support will be given to understand why and how some relevant DPA's design parameters have to be carefully selected when a Class F strategy is adopted. Moreover, a comparison between the output performance obtained from a simple Tuned Load DPA and the here presented Class F DPA will be given. From the experimental results, the realised Class F DPA achieved, in an Output Back-off of 6dB, an average drain efficiency of 50% with a saturated output power of 3.2W at 2.14GHz.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
