Design of multioctave power amplifier using <scp>multi‐harmonic</scp> bilateral pull technique

Xuan, Xuefei; Wang, Yang; Zhao, Ziming; Li, Guohua; Cheng, Zhiqun

doi:10.1002/mop.32642

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…In mobile communication networks, only PAs consume about 22% of transmitter power 1 . Therefore, with the rapid development of 5G communication, improving the performance of PAs has become the key to communication technology innovation 2–5 …”

Section: Introductionmentioning

confidence: 99%

Design of a high‐efficiency bandwidth‐enhanced power amplifier based on dual‐paths impedance matching techniques

Xuan,

Cheng,

Zhang

et al. 2023

Circuit Theory & Apps

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SummaryIn this brief, we propose a bandwidth‐enhanced dual‐paths impedance matching technique that can effectively match the four preset design frequency points in the operating frequency band to the optimal impedance region provided by a series of inverse continuous modes (SICMs), thus realizing the bandwidth expansion and efficiency improvement of the power amplifier (PA). To verify the proposed design theory, a multi‐octave PA component was designed, fabricated, and measured with a 10‐W GaN HEMT device. The implemented PA exhibits superior performance, with a relative bandwidth of 142.9% in the bandwidth range of 0.55–3.3 GHz. Moreover, the 39.1–42 dBm output power, 60.1%–76.2% drain efficiency (DE), and 9.1–12 dB gain are also achieved in the target band. Based on the simulated and measured results, the effectiveness of the proposed design theory is further confirmed.

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Section: Introductionmentioning

confidence: 99%

Design of a high‐efficiency bandwidth‐enhanced power amplifier based on dual‐paths impedance matching techniques

Xuan,

Cheng,

Zhang

et al. 2023

Circuit Theory & Apps

Self Cite

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“…WITH the rapid evolution of modern communication technology, the radio frequency front‐end systems of the fifth generation (5G) mobile communication require highly efficient power amplifiers (PAs), which can operate multiple signal standards at different frequencies 1‐56 . Therefore, as an energy‐efficient DC‐to‐RF power converters, switch mode Class‐E and harmonic‐tuned Class‐F PAs have attracted great attention based on the ability of wave‐shaping through appropriate harmonic termination 7‐12 .…”

Section: Introductionmentioning

confidence: 99%

Design of bandwidth‐enhanced power amplifier based on class‐EF modes

Xuan

Liu²,

Zhai

et al. 2021

Micro & Optical Tech Letters

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This article describes a methodology for designing broadband high-efficiency GaN HEMT power amplifier (PA) which is suitable for base stations and modern wireless communication based on the Class-EF mode. To achieve both efficiency enhancement and bandwidth extension for the PA, the load-pull technique is employed to acquire the optimum impedance regions of the second harmonic. Especially, considering the influences of the harmonic control network on the accuracy of obtaining the fundamental impedance, the load-pull technique is performed to obtain the optimal fundamental impedance again after the harmonic control circuit is determined. In addition, the theory of multiple frequencies matching is also employed to manipulate six desired fundamental frequency points concurrently. Based on the proposed theory, the Class-EF PA prototype is designed and fabricated. The measurement results exhibits a drain efficiency (DE) of 60%-75% in the range of 2.1-3.6 GHz while having an output power of 38-40.5 dBm and gain of larger than 8 dB.

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