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Moreno Rubio, Jorge Julian; Camarchia, Vittorio; Quaglia, Roberto; Angarita Malaver, Edison Ferney; Pirola, Marco (2016)
Publisher: Institution of Engineering and Technology
Languages: English
Types: Article
Subjects: TK, Broadband matching networks, GaN-based FETs, wideband microwave amplifier
This letter presents the design strategy for an ultrawideband,high-efficiency hybrid power amplifier based on a commercial GaN-HEMT. The measurement results demonstrate a state-of-the-art fractional bandwidth of 145.5%, with saturated output power higher than 10 W from 0.6 to 3.8 GHz and power added efficiency exceeding 46% in the whole band, thus covering most of the mobile frequencies and making this device suitable for small-base station applications. The simple design approach exploits a N-section transformer, and allows for a priori estimation of the bandwidth: in the proposed case, a good agreement between estimated and measured bandwidth is obtained.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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    • [5] J. Xia, X.-W. Zhu, and L. Zhang, “A linearized 2-3.5 GHz highly efficient harmonic-tuned power amplifier exploiting stepped-impedance filtering matching network,” IEEE Microw. Wireless Compon. Lett., vol. 24, no. 9, pp. 602-604, Sep. 2014.
    • [6] X. Ding, S. He, F. You, S. Xie, and Z. Hu, “2-4 GHz wideband power amplifier with ultra-flat gain and high PAE,” Electron. Lett., vol. 49, no. 5, pp. 326-327, Feb. 2013.
    • [7] J. M. Rubio, J. Fang, V. Camarchia, R. Quaglia, M. Pirola, and G. Ghione, “3-3.6 GHz wideband GaN Doherty power amplifier exploiting output compensation stages,” IEEE Trans. Microw. Theory Techn., vol. 60, no. 8, pp. 2543-2548, Aug. 2012.
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