Design of High Efficiency Broadband Continuous Class-F Power Amplifier Using Real Frequency Technique With Finite Transmission Zero
Design of High Efficiency Broadband Continuous Class-F Power Amplifier Using Real Frequency Technique With Finite Transmission Zero
复制标题
采用有限传输零实频技术的高效宽带连续F类功率放大器设计
DOI：
10.1109/access.2018.2875010
复制
发表时间：
2018
期刊：
影响因子：
3.9
通讯作者：
Dai Zhijiang
中科院分区：
文献类型：
--
作者：
Yang Zhenxing;Yao Yao;Liu Zhongquan;Li Mingyu;Li Tian;Dai Zhijiang
本文提出了一种新的宽带高效率连续F类功率放大器（PA）设计方法，该方法采用了有限频率下具有有限传输零点的分布式梯形结构。首次提出了利用真实的频率技术在理查德域实现有限传输零点的方法。通过应用该方法，可以从理论上推导出该结构的驱动点阻抗（DPI）特性。此外，在理查德域的合成方法进行了扩展，以合成建议的结构的DPI。四种类型的分布式元件进行了研究，以综合建议的结构的DPI。当带宽接近倍频程时，该结构可以改善CCF PA的性能，因为有限传输零点可以用于控制工作频带的上频率附近的较低频率的二次谐波阻抗。为了验证所提出的方法的有效性，一个宽带高效率的CCF PA工作在1.15至2.2 GHz的设计。实验结果表明，在工作频带内，功率增益为11.3- 13.7dB，输出功率为40.5- 43.2dBm。在整个工作带宽内，功率放大器的漏极效率（DE）达到70%-83%。
In this paper, a new methodology using a distributed ladder structure with finite transmission zero at finite frequencies is proposed for designing a broadband high-efficiency continuous Class-F (CCF) power amplifier (PA). The approach of realizing finite transmission zeros in Richard domain using Real Frequency Technique is first presented. By applying the proposed approach, the characteristics of the driving point impedance (DPI) of the proposed structure can be deduced and obtained in theory. Furthermore, the synthesis methods in Richard domain are extended to synthesize the DPI of the proposed structure. Four types of distributed elements are investigated to synthesize the DPI of the proposed structure. This proposed structure can improve the performance of the CCF PA when the bandwidth approaches an octave as the finite transmission zero can be used to control the second harmonic impedance of the lower frequency which is near the upper frequency of the operation band. To verify the validity of the proposed method, a broadband high-efficiency CCF PA working from 1.15 to 2.2 GHz is designed. Experimental results show that the fabricated PA achieves 11.3–13.7 dB power gain and 40.5–43.2 dBm output power in the operation band. And the PA has also achieved a high-efficiency characteristic of 70%–83% drain efficiency (DE) over the whole operation bandwidth.
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DOI：
10.23919/eumc.2010.5616309
发表时间：
2010-09
期刊：
The 40th European Microwave Conference
影响因子：
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作者：
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DOI：
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发表时间：
2018-01
影响因子：
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DOI：
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发表时间：
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影响因子：
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作者：
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影响因子：
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