上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (1): 51-53.

• 通信与信息工程 • 上一篇    下一篇

用于射频识别的低旁瓣圆极化微带天线阵

孙竹,钟顺时,陈旷达,汤小蓉   

  1. 上海大学 通信与信息工程学院,上海 200072
  • 收稿日期:2007-09-13 出版日期:2009-02-21 发布日期:2009-02-21
  • 作者简介:钟顺时(1939~),男,教授,博士生导师,研究方向为现代天线理论与技术等.
  • 基金资助:
    上海市重点学科建设资助项目(T0102)

Low-Sidelobe Microstrip Array with Circular Polarization for Radio Frequency Identification Applications

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
  • Received:2007-09-13 Online:2009-02-21 Published:2009-02-21

摘要:

介绍一种工作于2.45 GHz射频识别(RFID)读卡器微带天线阵的设计与测试结果.该天线结构简单,具有低旁瓣与圆极化特性.实测旁瓣电平为-23.2 dB,VSWR≤2阻抗带宽约130 MHz(2.44~2.58 GHz).这些特性能较好地满足RFID天线的要求.

关键词: 微带天线阵;低旁瓣;圆极化;射频识别读卡器

Abstract:

The design of a microstrip antenna array for 2.45 GHz radio frequency identification (RFID) reader applications is introduced with measured results. The array is of simple structure, low sidelobe level and circular polarization characteristics. Its measured sidelobe level is -23.2 dB, and the measured VSWR≤2 impedance bandwidth is 130 MHz (from 2.44 GHz to 2.58 GHz), making it suitable for RFID applications.

Key words: microstrip antenna array; low sidelobe level; circular polarization; radio frequency identification  (RFID) reader

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