Effects of finite-sized groundplane on radiation pattern deformation, impedance bandwidth, and radiation efficiency of U-PIFA

被引：5

作者：

Salonen, P ^{[1
]}

机构：

[1] Tampere Univ Technol, Inst Elect, FIN-33101 Tampere, Finland

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2003年 / 36卷 / 06期

关键词：

PIFA; dual-band PIFA; finite groundplane size; dual-band antenna;

D O I：

10.1002/mop.10800

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：

Planar-inverted F antennas (PIFAs) are widely used in portable devices, which are definitely size-limited. Therefore, it is useful to study the effects of a finite-sized ground plane on the antenna's various radiation and circuit parameters. In this paper, impedance bandwidth with criterion VSWR < 2 and radiation efficiency as a function of antenna position on a finite-sized ground plane are studied for a dualband U-shaped-slot PIFA (U-PIFA). Impedance bandwidth and radiation efficiency dependence along the ground plane are the main concerns. The results show that radiation efficiency and impedance bandwidth are strongly dependent on the antenna position on the groundplane. In addition, it is shown that the desired bandwidth can be controlled by proper location of the antenna. (C) 2003 Wiley Periodicals.

引用

页码：491 / 496

页数：6

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