| 基于零中频技术的 GSM 接收机的研究和开发 |
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| 引用本文： | 杜玉华,王光成.基于零中频技术的 GSM 接收机的研究和开发[J].浙江交通职业技术学院学报,2014(4):45-49. |
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| 作者姓名： | 杜玉华 王光成 |
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| 作者单位： | 常州工学院电子信息与电气工程学院,江苏常州213002 |
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| 摘 要： | 针对传统的GSM接收机一般采用二次变频超外差方案或一次变频的低中频方案，提出了一种基于零中频的实现方案，它采用一片AD公司的高性能下变频芯片ADRF6801，配以简单的前级放大和滤波电路，电路简洁，可以实现较好的性能指标，满足产品小型化、低功耗的要求。实际测试表明，采用该方案实现的接收机噪声系数低，灵敏度高，可应用于GSM接收的各种场合。
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| 关 键 词： | GSM接收机 零中频 射频 |
Research anf Development of GSM Receiver Based on ZIF |
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| DU Yu-hua,WANG Guang-cheng.Research anf Development of GSM Receiver Based on ZIF[J].Journal of Zhejiang Vocational and Technical Institute of Transportation,2014(4):45-49. |
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| Authors: | DU Yu-hua WANG Guang-cheng |
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| Institution: | (School of Electronic Information ＆ Electric Engineering, Changzhou Institute of Technology , Changzhou 213002, China) |
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| Abstract: | Traditional GSM receiver is twice conversions superheterodyne structure or single conversion superhetero -dyne structure ,which is complicated ,expensive ,and difficult to be integrated.A scheme for GSM receiver based on ZIF （Zero IF ） is proposed , which is composed of a downconverter made by ADI company ,front amplifiers and filters ,can achieve high performance ,meets the demands of lower power consumption ,miniaturization.Actual test shows that GSM receiver adopted ZIF scheme has the characteristics of lower Noise figure and high Sensitivity.This ZIF scheme can be applied to all kinds of GSM receiver. |
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| Keywords: | GSM receiver ZIF RF |
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