Design of a 2.45 GHz passive transponder using printed dipole rectenna for RFID application

2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI:10.1109/TENCON.2004.1414829

Young-Soo Na, Jin-Sub Kim, Yong-Chul Kang, S. Byeon, Kuk-Hwan Rha

引用次数: 9

Abstract

In this paper, we designed a passive RFID transponder at 2.45 GHz. The printed dipole antenna with wider bandwidth than that of the conventional patch antenna is suggested. The slot of the printed dipole could find accurate matching point and improve the antenna gain. According to the measured results, the gain of the antenna was 2.38 dBi and the conversion efficiency of the detector was 40.3% at the load resistance of 3.2 k/spl Omega/. The transmitted power from the reader is 500 mW (27 dBm) and the gain of the reader antenna is 14.57 dBi. The received power was 1.51 mW (2.2 V, 687 /spl mu/A) at the distance of 1.5 m from the reader. Also we suggest an ASK modulation method using a bipolar transistor to compensate the disadvantage of the conventional PIN diode, which needs large current.

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用于RFID应用的印刷偶极子整流天线2.45 GHz无源应答器的设计

在本文中，我们设计了一个2.45 GHz的无源RFID应答器。提出了一种比传统贴片天线带宽更宽的印刷偶极子天线。印刷偶极子的缝隙可以找到精确的匹配点，提高天线增益。根据测量结果，在负载电阻为3.2 k/spl ω /时，天线增益为2.38 dBi，探测器转换效率为40.3%。读取器发射功率为500mw (27dbm)，读取器天线增益为14.57 dBi。在距离阅读器1.5 m处，接收功率为1.51 mW (2.2 V, 687 /spl mu/A)。此外，我们还提出了一种使用双极晶体管的ASK调制方法，以弥补传统引脚二极管需要大电流的缺点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2004 IEEE Region 10 Conference TENCON 2004.

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