GaN MMIC Doherty power amplifier solutions for backhaul microwave links

2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI:10.1109/MWSYM.2013.6697577

V. Camarchia, P. Colantonio, T. Emanuelsson, G. Ghione, F. Giannini, R. Giofré, L. Piazzon, M. Pirola, R. Quaglia, T. Wegeland

引用次数: 3

Abstract

In this paper, two 5W power amplifier solutions for microwave backhaul at 7GHz are presented. They are based on 0.25μm GaN on SiC MMIC technology, and rely on advanced Doherty schemes. The first solution maximizes the back-off efficiency at center frequency, reaching a value around 50% at 7dB OBO. The second MMIC is optimized for a wideband behavior, with efficiency exceeding 40% on a 15% relative bandwidth. Characterization results and system level behavior of the two proposed MMICs are compared and discussed.

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用于回程微波链路的GaN MMIC Doherty功率放大器解决方案

本文提出了两种用于7GHz微波回程的5W功率放大器方案。它们基于0.25μm GaN on SiC MMIC技术，并依赖于先进的Doherty方案。第一种解决方案最大限度地提高了中心频率的回退效率，在7dB OBO时达到约50%的值。第二个MMIC针对宽带性能进行了优化，在15%的相对带宽下效率超过40%。比较和讨论了两种mmic的表征结果和系统级行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2013 IEEE MTT-S International Microwave Symposium Digest (MTT)

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