混合AB类高效大功率宽带功率放大器设计

IF 3.4 0 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE microwave and wireless technology letters Pub Date : 2025-06-02 DOI:10.1109/LMWT.2025.3555003

Engin Cagdas;Oguzhan Kizilbey;Metin Yazgi

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引用次数: 0

摘要

这封信介绍了一种宽带（1.8-6 GHz）高效率氮化镓（GaN）功率放大器（PA）。放大器的设计采用基于谐波失真性能的大信号带宽(BW)-电流传导角（CCA）关系的方法。这是在保持低增重的同时获得更高效率的新途径和新目标。制作的PA功率增益（$P_{\text {gain}}$）为9.6 dB，输出功率（$P_{\text {out}}$）为37.6 dBm，功率附加效率（PAE）范围为42%至51%，在1.8-6 GHz频段内高清电平低于- 20 dBc。

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High-Efficiency High-Power Wideband Power Amplifier Design With Hybrid Class AB

This letter presents a wideband (1.8–6 GHz) high efficiency Gallium Nitride (GaN) power amplifier (PA). The design of the PA employs an approach of large signal bandwidth (BW)-current conduction angle (CCA) relationship based on the harmonic distortion (HD) performance. This is a new approach and targets to obtain better efficiency while keeping increase of HD low in the BW. The fabricated PA offers power gain (

$P_{\text {gain}}$

) of 9.6 dB, an output power (

$P_{\text {out}}$

) of 37.6 dBm, a power added efficiency (PAE) ranging from 42% to 51%, and HD levels below −20 dBc throughout the 1.8–6 GHz frequency band.

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