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引用次数: 4
摘要
该工作提出了一种重量轻、结构紧凑的固态功率放大器(SSPA)，采用GaN技术用于L1频段(1.575GHz) GPS应用。由于GaN晶体管建模的不成熟发展，PA被设计为在F类模式下工作，通过使用谐波负载-拉动模拟和基于数据的表征相结合来实现高PAE。此外，本文将讨论热管理和输入匹配网络设计挑战的解决方案。在连续波工作中，在3dB增益压缩下实现了输出功率102W, ETA 68%， PAE 66%，增益15.1dB的混合电路实现。
A compact 100W, 68% Class F GaN Power Amplifier for L-band GPS
The work presents a light weight and compact solid-state power amplifier (SSPA) using GaN technology for L1 band (1.575GHz) GPS applications. Due to immature development of GaN transistor modeling, the PA is designed to operate in Class F mode by using a combination of harmonic load-pull simulations and data-based characterization to achieve high PAE. Additionally, the paper will discuss the solutions to the challenges of thermal management and input matching network design. A hybrid circuit realization achieves Pout=102W, ETA=68% and PAE=66% with gain=15.1dB under 3dB gain compression in CW operation.
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