Moreno Rubio Jorge Julián, Angarita Malaver Edison Ferney, Lara González Luis Ángel
Grupo de Investigación en Telecomunicaciones-GINTEL, Universidad Pedagógica y Tecnológica de Colombia, Sogamoso 152211, Colombia.
Instituto de Recursos Minero-Energéticos-IRME, Universidad Pedagógica y Tecnológica de Colombia, Sogamoso 152211, Colombia.
Micromachines (Basel). 2022 Mar 23;13(4):497. doi: 10.3390/mi13040497.
This paper presents a simple method to design wideband Doherty power amplifiers (DPAs) based on the synthesis of a combiner network which can mimic the response of an ideal compensation of the device reactive output equivalent network and exploit the maximum power capabilities of the device. Using the Wolfspeed's CGH40006 and CG2H40025 GaN HEMT devices, two DPAs were designed and simulated to demonstrate the effectiveness of the proposed approach. In both cases, a 1.4 GHz bandwidth was obtained together with an efficiency higher than 44 and 49% at 6 dB OBO. The saturated output power was higher than 41.2 and 47 dBm over the band, for the DPAs using the CGH40006 and CG2H40025 devices, respectively.
本文提出了一种基于合成组合网络来设计宽带Doherty功率放大器（DPA）的简单方法，该组合网络可以模拟器件无功输出等效网络的理想补偿响应，并利用器件的最大功率能力。使用Wolfspeed公司的CGH40006和CG2H40025 GaN HEMT器件，设计并仿真了两个DPA，以证明所提方法的有效性。在这两种情况下，均获得了1.4 GHz的带宽，并且在6 dB OBO时效率分别高于44%和49%。对于分别使用CGH40006和CG2H40025器件的DPA，在整个频段上饱和输出功率均高于41.2 dBm和47 dBm。
