| 基于低电源电压混频器的设计 |
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| 引用本文： | 张红南,罗丕进,黄雅攸,张卫青,曾云.基于低电源电压混频器的设计[J].湖南大学学报(自然科学版),2007,34(5):49-52. |
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| 作者姓名： | 张红南 罗丕进 黄雅攸 张卫青 曾云 |
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| 作者单位： | 1. 湖南大学,物理与微电子科学学院,湖南,长沙,410082
2. 湖南大学,计算机与通信学院,湖南,长沙,410082 |
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| 基金项目： | 湖南省自然科学基金资助项目(05JJ30115) |
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| 摘 要： | 提出了一种适用于低电源电压应用的混频器,其核心部分采用开关跨导形式,使得开关器件导通时的有限开态电阻引起的电压降减小到零,并在输出端采用折叠级联输出,降低了负载电阻引起的直流电压降,达到了在低电源电压下应用的目的.在1.3 V的电源电压下,电路仿真结果显示:转换增益为-11.5 dB,噪声系数为20.648 dBm,1 dB压缩点为-5.764 dBm,三阶交调失真点为4.807 dBm.
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| 关 键 词： | 混频器 开关跨导 折叠 |
| 文章编号： | 1000-2472（2007）05-0049-04 |
| 修稿时间： | 2006-05-26 |
The Design of Mixer Based on Low Voltage Supply Circuit |
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| ZHANG Hong-nan,LUO Pi-jin,HUANG Ya-you,ZHANG Wei-qing,ZENG Yun.The Design of Mixer Based on Low Voltage Supply Circuit[J].Journal of Hunan University(Naturnal Science),2007,34(5):49-52. |
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| Authors: | ZHANG Hong-nan LUO Pi-jin HUANG Ya-you ZHANG Wei-qing ZENG Yun |
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| Institution: | 1. College of Physics and Microelectronics Science, Hunan Univ, Changsha, Hunan 410082, China; 2. College of Computer and Communication, Hunan Univ, Changsha ,Hunan 410082, China |
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| Abstract: | We designed a kind of mixer for the low voltage supply circuit.The core of this mixer was a version of switched transconductor.By doing this,the reduction of the voltage induced by finite on-resistance of the switch devices was reduced to almost zero.In the output-terminal,we took a version of folded-output,reducing the fall of the direct voltage caused by the load resistance,and finally achieved the purpose for the low voltage supply circuit.Simulation results of this circuit on the condition of 1.3 V voltage supply showed that the conversion gain was-11.5 dB,the noise figure was 20.648 dBm,the 1 dB gain compression input power level was-5.764 dBm,and the IIP3 was 4.807 dBm. |
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| Keywords: | mixer switched transconductor folded |
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