| 平衡功率放大器的设计与实现 |
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| 引用本文： | 南敬昌,梁立明,刘元安.平衡功率放大器的设计与实现[J].电子技术应用,2010,36(1). |
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| 作者姓名： | 南敬昌 梁立明 刘元安 |
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| 作者单位： | 1. 辽宁工程技术大学电子与信息工程学院,辽宁,葫芦岛,125105
2. 北京邮电大学电信学院,北京,100876 |
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| 摘 要： | 设计了一个工作频段为902MHz～928MHz、输出功率为32dBm、应用于读卡器系统的末级功率放大器。为了在工作频段内实现平坦的功率增益并获得良好的输入、输出驻波比,本功率放大器采用平衡放大技术设计。仿真优化和实际测试表明,在整个工作频段内放大器的增益平坦度小于±0.5dB,输入、输出驻波比小于1.5,完全满足设计指标要求。
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| 关 键 词： | 增益平坦度 驻波比 仿真优化 实际测试 |
Design and realization of balanced power amplifier |
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| NAN Jing Chang,LIANG Li Ming,LIU Yuan An.Design and realization of balanced power amplifier[J].Application of Electronic Technique,2010,36(1). |
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| Authors: | NAN Jing Chang LIANG Li Ming LIU Yuan An |
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| Abstract: | After investigating the circuit structure and working principle of balanced amplifier,this paper presents the design of a last stage amplifier for RFID Reader,which works at 902 MHz ～928 MHz,with output power of 32 dBm.In order to realize flat power gain and obtain favorable input output standing wave ratio,we adopts the balance amplifying technique to design this amplifier.By making simulation optimization and practical test to amplifier,the results show that the gain flatness of amplifier is less than ±0.5 dB,input and output standing wave ratio is less than 1.5. |
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| Keywords: | gain flatness standing wave ratio simulation optimization practical test |
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