Broadband microstrip antenna with U and T slots for 2.45/2.41 GHz RFID tag

被引：12
|
作者：
Tang, Z. -J. [1 ]
He, Y. -G. [1 ]
机构：
[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China
来源：
ELECTRONICS LETTERS | 2009年 / 45卷 / 18期
关键词：
DESIGN;
D O I：
10.1049/el.2009.0387
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel single-layer passive RFID tag antenna for the resonant frequency 2.45/2.41 GHz using a square microstrip patch with a pair of U and T slots is proposed, which is suitable for attaching to metallic objects. The proposed antenna was fabricated with a thin copper layer printed on a thin lossy FR4 substrate for low-cost production. The dimensions of the proposed antenna are around 35 x 35 mm. The antenna shows near-linear phase characteristics, 250 MHz bandwidth under the condition of voltage standing-wave ratio less than 2 and it covers all RFID microwave bands. The gain of the proposed antenna is 2.0-2.2 dBi for worldwide RFID microwave bands. Half-power bandwidth is about 108 degrees.
引用
收藏
页码：926 / 927
页数：2
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