Effect of groundplane size on radiation efficiency and bandwidth of dual-band U-PIFA

Author

Salonen, Pekka

Author_Institution

Inst. of Electron., Tampere Univ. of Technol., Finland

Volume

3

fYear

2003

fDate

22-27 June 2003

Firstpage

70

Abstract

During the recent years there has been a surge interest on planar inverted-F antennas (PIFAs) for cellular phone and wireless local area network (WLAN) applications. Such antennas can be easily hidden within the housing of a cellular phone, PCMCIA card, etc. A common fact for these devices is their size limitations and usually a groundplane is the largest part of an antenna. Therefore, it is interesting to study the effects of groundplane size on various radiation and circuit parameters of the antenna. This paper presents a study where impedance bandwidth with criterion VSWR<2, and radiation efficiency as a function of groundplane size is carried out for a dual-band U-PIFA focusing its optimization for WLAN and HiperLAN applications. Measured results are discussed in details and compared with simulations, which were carried out with IE3D from Zeland software.

Keywords

antenna theory; multifrequency antennas; wireless LAN; 2.4 GHz; 5.2 GHz; HiperLAN; PCMCIA card; WLAN; cellular phones; dual-band U-PIFA; impedance bandwidth; planar inverted-F antennas; radiation efficiency groundplane size effects; wireless local area network; Antenna accessories; Antenna measurements; Application software; Bandwidth; Cellular phones; Circuits; Dual band; Impedance; Surges; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1219791

Filename

1219791