| 基于平衡结构的基站驱动级功放设计 |
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| 引用本文： | 高明明,南敬昌,裴世锋.基于平衡结构的基站驱动级功放设计[J].辽宁工程技术大学学报(自然科学版),2012,31(4):556-559. |
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| 作者姓名： | 高明明 南敬昌 裴世锋 |
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| 作者单位： | 辽宁工程技术大学电子与信息工程学院,辽宁葫芦岛,125105 |
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| 基金项目： | 国家自然科学基金(60971048);国家科技重大专项资助项目(2010ZX03007-002-03);国家“863”重大项目(2008AA04A102);辽宁省博士科研启动基金资助项目(20091033);2011年度辽宁工程技术大学科学科研立项计划(国家自然科学基金前期资助)(2011ZR050) |
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| 摘 要： | 为了在工作频段内获得良好的增益平坦度、隔离度及输入输出匹配,采用在基站驱动级功放设计中引入平衡结构的方法。在研究功放平衡电路结构和工作原理基础上,设计实现了两个工作频段在2 110～2 170 MHz,应用于基站系统的驱动级功率放大器.对功放进行仿真和实际测试,测试结果与仿真结果的高度一致性验证了这种方案的有效性,同时在整个工作频段内功放的增益平坦度都小于±0.5 dB,隔离度小于-27 dB,输入输出匹配参数良好。结果表明:设计的平衡放大器可以很好地应用在基站系统中,从而提高基站功放系统性能。
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| 关 键 词： | 驱动放大器 平衡结构 增益平坦度 耦合器 基站 射频电路 隔离度 匹配度 |
Driver amplifier design for base station based on balanced structure |
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| GAO Mingming
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NAN Jingchang
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PEI Shifeng.Driver amplifier design for base station based on balanced structure[J].Journal of Liaoning Technical University (Natural Science Edition),2012,31(4):556-559. |
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| Authors: | GAO Mingming NAN Jingchang PEI Shifeng |
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| Institution: | (School of Electrics and Information Engineering,Liaoning Technical University,Huludao 125105,China) |
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| Abstract: | In order to gain ideal flatness,isolation and input/output matching within the frequency,this study introduces a balanced structure into power amplifier design.The driver-stage power amplifier for base station system is designed based on the balanced circuit structure of amplifier and its principle,which works at 2110～2170MHz.The test and simulation results demonstrate that the method is effective.The results show that the gain flatness and isolation are less than ± 0.5dB and-27dB respectively within the entire working frequency.In addition,the input/output matching is very well.Consequently,this balanced amplifier can be applied in power base station to improve the base station system performance. |
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| Keywords: | driver amplifier balanced structure gain flatness coupler base station RF circuit isolation matching degree |
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