使用t型电路对RFID天线进行宽带匹配

2009 IEEE International Workshop on Antenna Technology Pub Date : 2009-03-02 DOI:10.1109/IWAT.2009.4906925

K. Noguchi, T. Moroya, M. Mizusawa, S. Betsudan, S. Makino, Takurou Sasaki

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引用次数: 4

摘要

RFID的使用在世界范围内稳步增长，其频带在每个国家都有分配。UHF频段的RFID主要应用于900MHz频段。欧洲、美国和日本的已分配频段包括860 - 960MHz。为了管理全球范围内的RFID频段，需要集成电路和天线的宽带化。本文提出了一种利用t型电路实现RFID天线宽带匹配的方法。该天线由弯曲线和t型电路组成，实现了与IC阻抗的共轭阻抗匹配。给出了天线的等效电路，并通过参数化研究对其进行了评估。实现了天线样机，并对其进行了数值分析。

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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Broadband matching of a RFID antenna by using a T-type circuit

RFID usage is steadily increasing in the world, and its frequency bands are assigned in each country. RFID in UHF band is mainly used in 900MHz band. Allocated frequency bands of Europe, the USA and Japan are included from 860 to 960MHz. Broadbanding of the IC and antenna is needed to manage the worldwide RFID frequency band. This paper proposes broadband matching of a RFID antenna by using a T-type circuit. The antenna consists of a meander-line and a T-type circuit that realizes conjugate impedance matching to the IC impedance. Equivalent circuits of the antenna are shown and evaluated by parametric study. Prototype of the antenna is realized and its numerical analyses are examined.

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2009 IEEE International Workshop on Antenna Technology

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