| 某型多调制方式低相噪毫米波频率源设计 |
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| 引用本文： | 黄刚,陈昌明.某型多调制方式低相噪毫米波频率源设计[J].电子器件,2016,39(2). |
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| 作者姓名： | 黄刚 陈昌明 |
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| 作者单位： | 成都信息工程大学 通信工程学院 |
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| 摘 要： | 介绍了一种低相噪、多调制方式毫米波频率源方案，采用直接数字频率合成(DDS)+锁相环(PLL)技术，通过引入FPGA解决了同时产生多调制编码单元的难题。详细分析了数字调制编码单元，给出了软件控制流程、m序列Modelsim仿真结果以及环路滤波器设计参数。实测结果表明，调制信号中心频率30 GHz,输出功率大于4 dBm,相位噪声优于-100 dBc/Hz@100 kHz。
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| 关 键 词： | 多调制 直接数字频率合成(DDS) 锁相环(PLL) FPGA |
Design of a Multi-modulation Millimeter Wave Frequency Source with Low Phase Noise Performance |
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| Abstract: | The method of multi-modulation millimeter wave frequency source with low phase noise performance is introduced. DDS and PLL technology as system design and the problem of multi-modulation was solved by FPGA. The digital modulation coding unit was analyzed. The software control process , m sequence of Modelsim simulation results and loop filter design parameter have been presented. The measured results show that modulation signal frequency center at 30 GHz, output power greater than 4 dBm and phase noise level is better than -100 dBc/Hz at 100 kHz offset frequency. |
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| Keywords: | multi-modulation DDS PLL FPGA |
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