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Novel DC-biasing circuits with arbitrary harmonics-control capability for compact high-efficiency power amplifiers

机译:具有任意谐波控制能力的新型直流偏置电路,用于紧凑型高效功率放大器

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摘要

The next generation mobile communication systems impose challenging performance, size, and cost requirements on the power amplifiers (PAs). This paper presents novel DC-biasing circuits, which are compact and yet can control the harmonics almost arbitrarily. The proposed circuit consists of a composite right-/left-handed (CRLH) transmission line (TL) stub, of which the size and harmonics-control function can be tuned by modifying the dispersion diagram of the stub line. As a proof of concept, a compact 2-GHz 7-W GaN HEMT class-F PA using the versatile CRLH-TL stubs was fabricated, demonstrating 85.8% drain efficiency and 77.3% power-added efficiency.
机译:下一代移动通信系统对功率放大器(PA)提出了具有挑战性的性能,尺寸和成本要求。本文提出了新颖的直流偏置电路,该电路结构紧凑,并且几乎可以任意控制谐波。所提出的电路由一个复合的右手/左手(CRLH)传输线(TL)短截线组成,可以通过修改短截线的色散图来调整其大小和谐波控制功能。作为概念验证,制造了使用通用CRLH-TL短线的紧凑型2 GHz 7 W GaN HEMT F类PA,展示了85.8%的漏极效率和77.3%的功率附加效率。

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