通过带宽扩展策略设计的超宽带功率放大器

IF 1.4 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Microwave and Wireless Technologies Pub Date : 2024-05-13 DOI:10.1017/s1759078724000552

Xuefei Xuan, Zhiqun Cheng, Brendan Hayes, Zhiwei Zhang, Tingwei Gong, Shenbing Wu, Chao Le

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引用次数: 0

摘要

本文通过采用并行阻抗匹配架构，提出了一种超宽带功率放大器（PA）的带宽扩展策略。这种设计策略可有效降低功率放大器负载与目标阻抗之间的阻抗转换率，从而为宽带阻抗匹配提供可行的解决方案。随后，结合市售的 10 W 氮化镓器件和两级威尔金森功率分压器网络，对所提出的理论进行了验证。测量结果表明，在 0.9-3.9 GHz 的目标频段内，可以实现 58.5-71.2% 的漏极效率和 9.1-12 dB 的增益，饱和输出功率为 39.1-42 dBm。

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An ultra-wideband power amplifier designed through a bandwidth expansion strategy

A bandwidth expansion strategy for ultra-wideband power amplifiers (PAs) is presented in this letter by adopting a parallel impedance matching architecture. This design strategy can effectively reduce the impedance conversion ratio between the load and the target impedance of the PA, thereby providing a feasible solution for broadband impedance matching. Subsequently, a commercially available 10 W gallium nitride device and a two-stage Wilkinson power divider network are combined to achieve the verification of the proposed theory. The results of the measurement show that within the target frequency band of 0.9–3.9 GHz, 58.5–71.2% of the drain efficiency and 9.1–12 dB of gain can be achieved with a saturated output power of 39.1–42 dBm.

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来源期刊

International Journal of Microwave and Wireless Technologies ENGINEERING, ELECTRICAL & ELECTRONIC-TELECOMMUNICATIONS

CiteScore

3.50

自引率

7.10%

发文量

130

审稿时长

6-12 weeks

期刊介绍： The prime objective of the International Journal of Microwave and Wireless Technologies is to enhance the communication between microwave engineers throughout the world. It is therefore interdisciplinary and application oriented, providing a platform for the microwave industry. Coverage includes: applied electromagnetic field theory (antennas, transmission lines and waveguides), components (passive structures and semiconductor device technologies), analogue and mixed-signal circuits, systems, optical-microwave interactions, electromagnetic compatibility, industrial applications, biological effects and medical applications.