| 基于零中频接收技术的RFID阅读器射频电路单元的设计 |
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| 引用本文： | 王善进,陈坤良,赖颖昕,宋跃.基于零中频接收技术的RFID阅读器射频电路单元的设计[J].计算机测量与控制,2010,18(3). |
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| 作者姓名： | 王善进 陈坤良 赖颖昕 宋跃 |
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| 作者单位： | 1. 东莞理工学院,电子工程学院,广东,东莞,523808
2. 东莞市太平洋计算机科技有限公司广东省射频识别工程技术研究开发中心,广东,东莞,523010 |
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| 基金项目： | 东莞市高等校科研项目(200710801011) |
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| 摘 要： | 射频识别(RFID)是一种利用射频电磁波信号,通过电磁耦合原理对目标实现远距离自动识别的技术,该技术的优点在于不需要与被识别目标进行近距离的直接接触;一套射频自动识别系统一般由天线(可能不止一副)、阅读器和电子标签3部分构成;对RFID阅读器中基于多通道零中频解调技术的射频电路单元进行了分析和介绍,并设计制作了工作频率为915MHz、射频输出功率为30dBm的实际射频电路,电路的性能指标完全符合设计的要求,工作良好。
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| 关 键 词： | 射频 射频识别 多通道 零中频解调 |
Design and Practice of RF Circuit of RFID Reader Based on Technology of Multi-channel Homodyne Intermediate Frequency Demodulation |
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| Wang Shanjin,Chen Kunliang,Lai Yingxin,Song Yue.Design and Practice of RF Circuit of RFID Reader Based on Technology of Multi-channel Homodyne Intermediate Frequency Demodulation[J].Computer Measurement & Control,2010,18(3). |
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| Authors: | Wang Shanjin Chen Kunliang Lai Yingxin Song Yue |
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| Affiliation: | 1.School of Electronic Engineering/a>;Dongguan University of Technology/a>;Dongguan 523808/a>;China/a>;2.R&D Center of RFID engineering and Technoloy of Guangdong/a>;Dongguan Pacific Gold Technology Co./a>;Ltd/a>;Dongguan 523010/a>;China |
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| Abstract: | RFID (radio frequency identification) is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency portion of the electromagnetic spectrum to uniquely identify far-distance objects. The advantage of RFID is that it does not require direct contact. An RFID system commonly consists of three components: an antenna (may be more than one) , one reader and the tags. The technology of multi-channel homodyne intermediate frequency demodulation is discussed. A RF circuit system of RFID which operates at the 915MHz with 30 dBm output power is developed. |
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| Keywords: | radio frequency RFID multichannel homodyne intermediate frequency demodulation |
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