This paper presents the design of a concurrent tri-band Doherty Power Amplifier (DPA) for 1.84 GHz, 2.14 GHz and 2.65 GHz frequency bands. The frequency response around each operating band is maximally flattened adopting a new design strategy. The DPA is based on hybrid technology using two 8 W GaN HEMT as active devices. The results show a peak of drain efficiency higher than 60 % in each operating band and over 45 % at the corresponding 6 dB output power back-off (OBO). Finally, more than 200 MHz of bandwidth is achieved around each operating frequency.
Costanzo, F., Giofre', R., Piazzon, L., Giannini, F., Colantonio, P., Nair Deepak, M. (2015). A design method for concurrent tri-band Doherty Power Amplifier. In Wireless Symposium (IWS), 2015 IEEE International (pp.1-3). IEEE [10.1109/IEEE-IWS.2015.7164633].
A design method for concurrent tri-band Doherty Power Amplifier
GIOFRE', ROCCO;PIAZZON, LUCA;GIANNINI, FRANCO;COLANTONIO, PAOLO;
2015-01-01
Abstract
This paper presents the design of a concurrent tri-band Doherty Power Amplifier (DPA) for 1.84 GHz, 2.14 GHz and 2.65 GHz frequency bands. The frequency response around each operating band is maximally flattened adopting a new design strategy. The DPA is based on hybrid technology using two 8 W GaN HEMT as active devices. The results show a peak of drain efficiency higher than 60 % in each operating band and over 45 % at the corresponding 6 dB output power back-off (OBO). Finally, more than 200 MHz of bandwidth is achieved around each operating frequency.| File | Dimensione | Formato | |
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