| GSM手持设备射频芯片内集成多相滤波器的设计 |
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| 引用本文： | 陈勖,徐峰,王新安. GSM手持设备射频芯片内集成多相滤波器的设计[J]. 深圳信息职业技术学院学报, 2014, 0(1): 30-34 |
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| 作者姓名： | 陈勖 徐峰 王新安 |
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| 作者单位： | [1]深圳信息职业技术学院软件学院,广东深圳518172 [2]北京大学深圳研究生院集成微系统重点实验室,广东深圳518055 |
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| 摘 要： | 作为低中频接收机关键模块之一,多相滤波器在镜像抑制和邻道干扰方面扮演着重要的角色.它的性能指标直接影响整个接收链路的灵敏度.本文采用有源RC电路架构设计了一个五阶切比雪夫多相滤波器.仿真结果表明,该滤波器的中心频率在100kHz,3dB带宽是220kHz.最大电压增益为63dB,镜像抑制比大于30dB.设计的滤波器完全满足GSM手持设备的要求.
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| 关 键 词： | 低中频 多相滤波器 有源RC 可编程增益放大器 |
Design of integrated poly-phase filter in GSM handset RFIC |
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| CHEN Xu,XU Feng,WANG Xinan. Design of integrated poly-phase filter in GSM handset RFIC[J]. Journal of Shenzhen Institute of Information Technology, 2014, 0(1): 30-34 |
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| Authors: | CHEN Xu XU Feng WANG Xinan |
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| Affiliation: | 1. School of Software Engineering, Shenzhen Institute of Information Technology, Shenzhen 518172, P.R. China 2. Key Laboratory of Integrated Micro-system, Shenzhen Graduate School of Peking University, Shenzhen 518055, China) |
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| Abstract: | As one of the main modules of low-IF receiver, the poly-phase filter plays an important role in image rejection and adjacent channel interference. Its performance index directly affects the sensitivity of the whole receiving link. This paper adopts the structure of active RC to design a five-order Chebyshev poly-phase filter. The simulation results show that the filter can realize the center frequency of 100 kHz with 3dB bandwidth of 220 kHz. It has maximum voltage gain of about 63dB and image reject ratio greater than 30dB. So it can satisfy the requirement of GSM （group special mobile） handset. |
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| Keywords: | low IF poly-phase fiher active RC PGA（Pmgrammable Gam Amplifier） |
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