A 0.6-3.8 GHz GaN Power Amplifier Designed Through a Simple Strategy

作者：Moreno Rubio Jorge Julian; Camarchia Vittorio; Quaglia Roberto; Angarita Malaver Edison Ferney; Pirola Marco

来源：IEEE Microwave and Wireless Components Letters, 2016, 26(6): 446-448.

DOI：10.1109/LMWC.2016.2549263

• Broadband matching networks
• GaN-based FETs
• wideband microwave amplifiers

This letter presents the design strategy for an ultrawide-band, 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.

• 出版日期2016-6