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公开(公告)号:US07193473B2
公开(公告)日:2007-03-20
申请号:US11090577
申请日:2005-03-24
IPC分类号: H03F3/68
CPC分类号: H03F1/0288
摘要: A high power Doherty RF amplifier utilizes multi-stage amplifier modules for both the main amplifier and the peak amplifiers. In one embodiment of a two way two stage amplifier, the first stage of each amplifier module can include signal pre-distortion whereby the first stage compensates for distortion in both the first and second stages. The design is simple and results in a high efficiency amplifier with high gain. In one embodiment, a commercially available CREE PFM19030SM power module is used in both the main amplifier and the peak amplifier.
摘要翻译: 高功率Doherty RF放大器利用主放大器和峰值放大器的多级放大器模块。 在双向两级放大器的一个实施例中,每个放大器模块的第一级可以包括信号预失真,由此第一级补偿第一级和第二级的失真。 设计简单,产生了高增益的高效率放大器。 在一个实施例中,市售的CREE PFM19030SM功率模块用于主放大器和峰值放大器。