Zhiyuan Chen, Xiang Su, Feng Tao, Zhilong Xiao, Jinxiong Xie, M. Li, Shuxun Lin, B. Yan, R. Xu, Yuehang Xu
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引用次数: 0
Abstract
In order to meet the demand of broadband miniaturized solid-state power amplifiers for radar systems, a high efficiency power amplifier was designed and implemented using a 0.5um GaN HEMT process. The power amplifier is realized by using passive elements on substrates with different permittivity for reducing the size and a compact broadband matching topology for broadband. The experimental results at pulse excitation show that the power amplifier output power is larger than 60W, the gain is over 31dB, and the power added efficiency (PAE) is more than 55% in the 700-1250MHz frequency band, which has a record relative bandwidth over 56% in P/L band over 60W output power.
为了满足雷达系统对宽带小型化固态功率放大器的需求，设计并实现了一种采用0.5um GaN HEMT工艺的高效功率放大器。该功率放大器通过在不同介电常数的衬底上使用无源元件来减小尺寸，并采用紧凑的宽带匹配拓扑来实现宽带。脉冲激励下的实验结果表明，该功率放大器在700 ~ 1250mhz频段的输出功率大于60W，增益大于31dB，功率附加效率(PAE)大于55%，在P/L频段，在60W输出功率下的相对带宽超过56%。
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