Design of Triple-Frequency Microstrip-Fed Monopole Antenna Using Defected Ground Structure

被引：163
|
作者：
Liu, Wen-Chung [1 ]
Wu, Chao-Ming [1 ]
Dai, Yang [2 ]
机构：
[1] Natl Formosa Univ, Dept Aeronaut Engn, Yunlin, Taiwan
[2] Natl Univ Tainan, Dept Elect Engn, Tainan, Taiwan
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2011年 / 59卷 / 07期
关键词：
Defected ground structure; monopole antenna; multi-band; triple-frequency; WiMAX; WLAN; PLANE;
D O I：
10.1109/TAP.2011.2152315
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 triple-frequency microstrip-fed planar monopole antenna for multiband operation is proposed and investigated. Defected ground structure (DGS) is used in this antenna, which has a rectangular patch with dual inverted L-shaped strips and is fed by a cross-shaped stripline, for achieving additional resonances and bandwidth enhancements. The designed antenna has a small overall size of 20 X 30 mm(2), and operates over the frequency ranges, 2.14-2.52 GHz, 2.82-3.74 GHz, and 5.15-6.02 GHz suitable for WLAN 2.4/5.2/5.8 GHz and WiMAX 3.5/5.5 GHz applications. There is good agreement between the measured and simulated results. Experimental results show that the antenna gives monopole-like radiation patterns and good antenna gains over the operating bands. In addition, effects of both the length of the protrudent strips and the dimensions of the DGS for this design on the electromagnetic performance are examined and discussed in detail.
引用
收藏
页码：2457 / 2463
页数：7
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