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dc.contributor.advisor汤碧玉
dc.contributor.advisor石江宏
dc.contributor.author方志远
dc.date.accessioned2016-02-14T08:21:02Z
dc.date.available2016-02-14T08:21:02Z
dc.date.issued2009-11-30 15:30:53.0
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/51446
dc.description.abstract随着第三代无线通信技术的发展,采用多载波调制技术的WCDMA信号,具有较高的峰均比。以功率回退设计的A类或AB类功率放大器难以满足在高峰均比(PAR)条件下的效率要求,造成了能量的巨大浪费,而且导致了严重的基站或直放站热管理问题,影响了系统性能,增加了制作成本。因此,研究具有低功耗、高效率的功率放大器是新一代基站或直放站的关键技术之一。近几年,随着数字预失真技术(DPD,digitalpredistortion)的发展,功率放大器的线性指标得到有效改善,将结构简单、效率高的Doherty功率放大器应用于基站或直放站成为当前研究的热点。 本文深入研究了Doherty功率放大器的结构特点,以及工...
dc.description.abstractWith the development of 3G technology, the WCDMA signal is characterized with a higher PAR, in which multi-carrier modulation is adopted. The power amplifiers, class A and AB, using power backoff scheme are difficult to meet the effiency requirement under the condiction of a high PAR, which cause a huge energy dissipation while producing a lot of heat. What’s more, it degrades the system performa...
dc.language.isozh_CN
dc.relation.urihttps://catalog.xmu.edu.cn/opac/openlink.php?strText=22552&doctype=ALL&strSearchType=callno
dc.source.urihttps://etd.xmu.edu.cn/detail.asp?serial=21867
dc.subject数字直放站
dc.subjectDoherty功率放大器
dc.subjectWCDMA
dc.subjectDigital Repeater
dc.subjectDoherty Power Amplifier
dc.subjectWCDMA
dc.title基于WCDMA标准的数字直放站Doherty功率放大器设计
dc.title.alternativeThe Design of Doherty Power Amplifier in Digital Repeater Based on WCDMA Standard
dc.typethesis
dc.date.replied2009-06-02
dc.description.note学位:工学硕士
dc.description.note院系专业:信息科学与技术学院通信工程系_通信与信息系统
dc.description.note学号:23320061152603


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